3412 INDUSTRIAL ENGINE 38S00001-13235 BASIC ENGINE Caterpillar SIS

INDUSTRIAL ENGINE 3412 INDUSTRIAL ENGINE 38S
3412 INDUSTRIAL ENGINE 38S00001-13235 SEBP1101 3412 38S (1976)

Parts group 3412:

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BASIC ENGINE

AIR COMPRESSOR GP

6N-3325 AIR COMPRESSOR GROUP

6N3325 AIR COMPRESSOR GROUP--Type 1
Serial No. 38S1 to 38S1764 inclusive
6N3611 Compressor parts are shown on Page 388

6N-3325 AIR COMPRESSOR GROUP

6N3325 AIR COMPRESSOR GROUP--Type 2
Serial No. 38S1 to 38S1764 inclusive
6N3611 Compressor parts are shown on Page 388

7N-2850 AIR COMPRESSOR GP

7N2850 AIR COMPRESSOR GROUP
Serial No. 38S1765-Up. 6N3611 Compressor Parts Are Shown On Page 388
An Attachment

6N-3611 AIR COMPRESSOR GP

6N3611 AIR COMPRESSOR GROUP
Part of 6N3325 & 7N2850 Air Compressor Groups shown on Pages 386, 387 and 387B

6N-6155 LINES GP-COMPRESSOR

6N6155 AIR COMPRESSOR LINES GROUP--Aftercooled--Type 1

6N-6155 LINES GP-COMPRESSOR

6N6155 COMPRESSOR LINES GROUP--Aftercooled--Type 2

6N-6154 LINES GP-COMPRESSOR

6N6154 AIR COMPRESSOR LINES GROUP--Non-Aftercooled--Type 1

6N-6154 LINES GP-COMPRESSOR

6N6154 AIR COMPRESSOR LINES GROUP--Non-Aftercooled--Type 2

1W-7484 LINES GP-AIR COMPRESSOR

1W7484 AIR COMPRESSOR LINES GROUP--Non-Aftercooled
Serial No. 38S6689-Up. FOR USE WITH TU-FLO 700 AIR COMPRESSOR
AN ATTACHMENT

9N-5563 AIR COMPRESSOR GP

9N5563 AIR COMPRESSOR GROUP--TYPE 1
Serial No. 38S6689-Up
9N5564--Page 390A.04. An Attachment

9N-5563 AIR COMPRESSOR GP

9N5563 AIR COMPRESSOR GROUP--TYPE 2
Serial No. 38S6689-Up
2W5134--Page 390A.05. An Attachment

9N-5564 AIR COMPRESSOR GP

9N5564 AIR COMPRESSOR GROUP
Serial No. 38S6689-Up
Part of 9N5563 Air Compressor Group shown on Page 390A.02

2W-5134 AIR COMPRESSOR GP

2W5134 AIR COMPRESSOR GROUP
Serial No. 38S6689-Up
9N5449--Page 390A.06. Part Of 9N5563 Air Compressor
An Attachment

9N-5449 CYLINDER BLOCK AS

9N5449 BLOCK AS-AIR COMPRESSOR
Serial No. 38S6689-Up
Part Of 2W5134, 9N5564 Air Compressore Gp. An Attachment

CAMSHAFT GP

4N-0965 CAMSHAFT GP-SINGLE

4N965 CAMSHAFT GROUP
Serial No. 38S1 to 38S12757 inclusive. 4N9053--Page 49

4N-0965 CAMSHAFT GP-SINGLE

4N965 CAMSHAFT GROUP
Serial No. 38S12758-Up

CLUTCH GP

4W-7140 CLUTCH GP

4W7140 CLUTCH GROUP--PART 1 OF 2
Part Of 4W7141 Rear Power Take-Off

4W-7140 CLUTCH GP

4W7140 CLUTCH GROUP--PART 2 OF 2
Part Of 4W7141 Rear Power Take-Off

2W-4910 CLUTCH GP

2W4910 BASIC CLUTCH GROUP--Part 1 of 2
Part of 2W4911 Rear Clutch Power Take-Off Group shown on Page 378C
AN ATTACHMENT

2W-4910 CLUTCH GP

2W4910 BASIC CLUTCH GROUP--Part 2 of 2
Part of 2W4911 Rear Clutch Power Take-Off Group shown on Page 378C
AN ATTACHMENT

2W-4912 CLUTCH GP

2W4912 BASIC CLUTCH GROUP
Part Of 2W4913 Rear Power Take-Off
An Attachment

3N-8614 CLUTCH GP

3N8614 CLUTCH GROUP--Part 1 of 2
Specification No. 35545
Part of 3N8618 Rear Clutch Power Take-off Group shown on Page 378

3N-8614 CLUTCH GP

3N8614 CLUTCH GROUP--Part 2 of 2
Specification 35545
Part of 3N8618 Rear Clutch Power Take-off Group shown on Page 378

3N-8615 CLUTCH GP

3N8615 CLUTCH GROUP--Part 1 of 2
Specification No. 35548
Part of 3N8619 Rear Clutch Power Take-off Group shown on Page 378

3N-8615 CLUTCH GP

3N8615 CLUTCH GROUP--Part 2 of 2
Specification No. 35548
Part of 3N8619 Rear Clutch Power Take-off Group shown on Page 378

5N-7329 CLUTCH GP

5N7329 BASIC CLUTCH GROUP-TYPE 1
Serial No. 38S1 To 38S13171 Inclusive
5N7169-Page 383C. Part Of 5N7398 Front Clutch Power Take-Off
An Attachment

5N-7329 CLUTCH GP

5N7329 BASIC CLUTCH GROUP-TYPE 2
Serial No. 38S1 To 38S13171 Inclusive
5N3789-Page 383D. Part Of 5N7398 Front Clutch Power Take-Off
An Attachment

5N-7329 CLUTCH GP

5N7329 CLUTCH GROUP
Serial No. 38S13172-Up
5N3789-Page 383D. Part Of 4W9828 Front Clutch Power Take-Off
An Attachment

5N-7169 CLUTCH GP

5N7169 CLUTCH ASSEMBLY
Part of 5N7329 Basic Clutch Group shown on Page 383A
AN ATTACHMENT

5N-3789 CLUTCH AS

5N3789 CLUTCH ASSEMBLY
Part of 5N7329 Basic Clutch Group shown on Page 383B
AN ATTACHMENT

3N-7840 CLUTCH GP

3N7840 POWER TAKE-OFF CLUTCH GROUP--Type 1
Specification No. 35110
Part of 6N7940 Front Clutch Power Take-off Group shown on Page 379

3N-7840 CLUTCH GP

3N7840 FRONT POWER TAKE-OFF CLUTCH GROUP--Type 2
Specification No. 35110
Part of 6N7940 Front Clutch Power Take-Off Group shown on Page 379

5N-2851 CLUTCH GP-BASIC

5N2851 CLUTCH GROUP
Part of 6N7940 Front Clutch Power Take-Off Group shown on Page 379B

5N-1729 CLUTCH GP-BASIC

5N1729 CLUTCH GROUP -- Replaced by 5N6391 shown on Page 384C-1
Part of 6N7940 Front Clutch Power Take-Off Group shown on Page 379B

5N-6391 CLUTCH GP

5N6391 CLUTCH GROUP
Part of 5N6671 Front Clutch Power Take-Off Group shown on Page 379B-1
AN ATTACHMENT

5N-6729 CLUTCH GP

5N6729 CLUTCH GROUP -- Specification No. 36597
Part of 5N6671 Front Clutch Power Take-Off Group shown on Page 379B-2
AN ATTACHMENT

COUPLING GP

7L-6028 COUPLING GP-DRIVE

7L6028 GENERATOR DRIVE COUPLING GROUP
Part of 5N2975 Generator Installation Arrangement

5N-1713 COUPLING GP-GENERATOR DRIVE

5N1713 GENERATOR DRIVE COUPLING GROUP
Part of 5N2975 Generator Installation Arrangement listed on Page 356A

CRANKSHAFT GP

4N-0922 CRANKSHAFT GP

4N0922 CRANKSHAFT GROUP
Serial No. 38S1 To 38S12878 Inclusive

4N-0922 CRANKSHAFT GP

4N0922 CRANKSHAFT GROUP
Serial No. 38S12879 To 38S13202 Inclusive

4N-0922 CRANKSHAFT GP

4N0922 CRANKSHAFT GROUP
Serial No. 38S13203-Up

CRANKSHAFT BEARING REPLACEMENTS

CYLINDER BLOCK GP

4N-1960 COVER GP-CYLINDER BLOCK

4N1960 CYLINDER BLOCK COVER GROUP
For Direct Injection Turbocharged Engine

4N-1201 CYLINDER BLOCK GP

4N1201 CYLINDER BLOCK GROUP
Serial No. 38S1 to 38S889 inclusive
6N2153 Cylinder Block parts are shown on Page 45

4N-1201 CYLINDER BLOCK GP

4N1201 CYLINDER BLOCK GROUP
Serial No. 38S890 to 38S6006 inclusive
6N2153 Cylinder Block parts are shown on Page 45

4N-1201 CYLINDER BLOCK GP

4N1201 CYLINDER BLOCK GROUP
Serial No. 38S6007 To 38S13185 Inclusive
7N0841-Page 43D

4N-1201 CYLINDER BLOCK GP

4N1201 CYLINDER BLOCK GROUP
Serial No. 38S13186 To 38S13203 Inclusive
7N841-Page 43D

4N-1201 CYLINDER BLOCK GP

4N1201 CYLINDER BLOCK GROUP
Serial No. 38S13204-Up
7N841-Page 43D

1W-0173 CYLINDER BLOCK GP

1W0173 CYLINDER BLOCK GROUP
Serial No. 38S1 To 38S13185 Inclusive
7N0841-Page 43D

1W-0173 CYLINDER BLOCK GP

1W0173 CYLINDER BLOCK GROUP
Serial No. 38S13186 To 38S13203 Inclusive
7N0841-Page 43D

1W-0173 CYLINDER BLOCK GP

1W0173 CYLINDER BLOCK GROUP
Serial No. 38S13204-Up
7N0841-Page 43D

2W-4859 CYLINDER BLOCK GP

2W4859 CYLINDER BLOCK GROUP
Serial No. 38S6007-Up
Provides Field Replacement for 7N841 shown on Page 43D

7N-0841 CYLINDER BLOCK AS

7N841 CYLINDER BLOCK ASSEMBLY
Engine Serial No. 38S6007-Up. Part of 4N1201 & 1W173 Cylinder Blocks
For Field Replacement order 2W4859 on Page 43B

4N-6866 COVER GP-CYLINDER BLOCK

4N6866 CYLINDER BLOCK COVER GROUP
For Precombustion Chambered Turbocharged Aftercooled Engine

6N-2153 CYLINDER BLOCK GROUP

6N2153 CYLINDER BLOCK GROUP
Part of 4N1201 Cylinder Block Group shown on Page 43

CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP--For Direct Injection Turbocharged Engine
Serial No. 38S1 to 866, 868 to 870, 874 to 880, 883, 884, 886 to 889, 891, 892, 893, 897, to 900, 904, 905,
906, 909, 910, 914, 915, 917, 918 and 38S919 inclusive. 4N1711 Cylinder Head parts are shown on Page 52

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP--For Direct Injection Turbocharged Engine
Serial No. 38S867, 871, 872, 873, 881, 882, 885, 890, 894 to 896, 901, 902, 903,
907, 908, 911, 912, 913, 916 and 38S920 to 38S3676 inclusive
6N9975 Cylinder Head parts are shown on Page 52A

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP
For Direct Injection Turbocharged Engine
Serial No. 38S3677 to 6176, 6178 to 6329, 6495 and 38S6499 inclusive
6N9975 Cylinder Head parts are shown on Page 52A-2

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP
For Direct Injection Turbocharged Engine
Serial No. 38S6177, 6330 to 6494, 6496 to 6498 and 38S6500 to 38S12550 inclusive
7N847--Page 52A.04

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP
For Direct Injection Turbocharged Engine
Serial No. 38S12551 to 38S12570 inclusive
2W5746--Page 52A.05

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP
Serial No. 38S12571 to 38S12761 inclusive
7N847--Page 52A.04

4N-2622 CYLINDER HEAD GP

4N2622 CYLINDER HEAD GROUP
Serial No. 38S12762-Up. 1W5959--Page 52A.06

4W-7007 CYLINDER HEAD GP

4W7007 CYLINDER HEAD GP--PART 1 OF 2*R
S/N 38S13223-Up
7W2242--Page 52A.07

4W-7007 CYLINDER HEAD GP

4W7007 CYLINDER HEAD GP--PART 2 OF 2*R
S/N 38S13223-Up

1W-5958 CYLINDER HEAD GP

1W5958 CYLINDER HEAD GROUP
Serial No. 38S12762 To 38S12783 Inclusive
1W5959--Page 52A.06

1W-5958 CYLINDER HEAD GP

1W5958 CYLINDER HEAD GROUP
Serial No. 38S12784-Up
1W5959--Page 52A.06

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S1 to 853, 855 to 860, 862, 863, 865, 867 to 875, 877, 879, 881 to 885, 890 to 892, 894
to 896, 901 to 903, 907 to 917, 920 to 38S926 inclusive. 4N1711 Cylinder Head parts are shown on Page 52

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S854, 861, 864, 866, 876, 878, 880, 886, 887, 888, 889, 893, 897 to 900,
904 to 906, 918, 919 and 38S927 to 38S3676 inclusive. 6N9975 Cylinder Head parts
are shown on Page 52A

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S3677 to 38S6174 and 38S6177 to 38S6329 inclusive
6N9975 Cylinder Head parts are shown on Page 52A-2

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP--For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S6175, 38S6176 and 38S6330 to 38S12550 inclusive. 7N847--Page 52A.04

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S12551 To 38S12570 Inclusive
2W5746-Page 52A.05

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S12571 To 38S12761 Inclusive
7N0847-Page 52A.04

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
Serial No. 38S12762 To 38S12794 Inclusive
1W5959-Page 52A.06

4N-2623 CYLINDER HEAD GP

4N2623 CYLINDER HEAD GROUP
Serial No. 38S12795-Up
7N847-Page 52A.04

4N-1711 CYLINDER HEAD GP

4N1711 CYLINDER HEAD GROUP
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Page 50 and 51

6N-9975 CYLINDER HEAD GP

6N9975 CYLINDER HEAD GROUP
Serial No. 38S1 to 38S1124 inclusive
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Pages 50A, 51 and 51A

1W-5960 CYLINDER HEAD AS

1W5960 CYLINDER HEAD ASSEMBLY
Serial No. 38S12816-Up
Part Of 7N0848 Clylinder Head
For Field Replacement Order 7N0848-Page 52A.03

6N-9975 CYLINDER HEAD GP

6N9975 CYLINDER HEAD GROUP
Serial No. 38S1125-Up
Part of 4N2622 and 4N2623 Cylinder Head Groups shown on Pages 50A, 50B, 51A and 51B

7N-0848 CYLINDER HEAD AS

7N0848 CYLINDER HEAD ASSEMBLY*R
Serial No. 38S12816-Up
1W5960-Page 52A.01
Provides Field Replacement For 1W5960-Page 52A.01

7N-0847 CYLINDER HEAD GP

7N0847 CYLINDER HEAD GROUP
Part Of 4N2622 & 4N2623 Cylinder Heads

2W-5746 CYLINDER HEAD GP

2W5746 CYLINDER HEAD GROUP
Serial No. 38S12551 to 38S12570 inclusive
Part of 4N2622 Cylinder Head

1W-5959 CYLINDER HEAD GP

1W5959 CYLINDER HEAD GROUP
Serial No. 38S12762-Up
1W5960-Page 52A.08
Part Of 4N2622, 1W5958 & 4N2623 Cylinder Heads

7W-2242 CYLINDER HEAD GP

7W2242 CYLINDER HEAD GROUP
7W2241-Page 52A.09
Part Of 4W7007 Cylinder Head

1W-5960 CYLINDER HEAD AS

1W5960 CYLINDER HEAD ASSEMBLY
Serial No. 38S12762 To 38S12815 Inclusive
Part Of 1W5959, 1W5961 Cylinder Heads
Field Replacement Order 1W5961-Page 52A.08

1W-5961 CYLINDER HEAD AS

1W5961 CYLINDER HEAD ASSEMBLY--FIELD INSTALLATION*R
Serial No. 38S12762 To 38S12815 Inclusive
1W5960-Page 52A.08
Provides Field Replacement For 1W5960

7W-2241 CYLINDER HEAD AS

7W2241 CYLINDER HEAD ASSEMBLY
Part Of 7W2242 Cylinder Head
For Field Replacement Order 7W2243-Page 52A.10

7W-2243 CYLINDER HEAD AS

7W2243 CYLINDER HEAD ASSEMBLY*R
7W2241--Page 52A.09
Field Replacement For 7W2241--Page 52A.09

DAMPER GP

4N-4130 DAMPER & PULLEY GP

4N4130 PULLEY AND DAMPER GROUP

6N-2889 DAMPER GUARD GROUP

6N2889 DAMPER GUARD GROUP
FOR USE WITHOUT RADIATOR OR ALTERNATOR
AN ATTACHMENT

6N-7788 DAMPER & PULLEY GP

6N7788 PULLEY AND DAMPER GROUP

8N-4812 GUARD GP-DAMPER

8N4812 DAMPER GUARD GROUP
FOR USE WITHOUT RADIATOR OR ALTERNATOR AND CANNOT BE USED WITH
GENERATOR SET ENGINE. AN ATTACHMENT

8N-5572 DAMPER & PULLEY GP

8N5572 PULLEY AND DAMPER GROUP

DRIVE GP-AUXILIARY

7N-8881 DRIVE GP-AUXILIARY

7N8881 AUXILIARY DRIVE GROUP--2 GROOVE PULLEY--TYPE 1
An Attachment

7N-8881 DRIVE GP-AUXILIARY

7N8881 AUXILIARY DRIVE GROUP--2 GROOVE PULLEY--TYPE 2
An Attachment

4N-8479 DRIVE GP-AUXILIARY

4N8479 AUXILIARY DRIVE GROUP
Replaced By 7N8750 & 7N8881 Shown On Pages 384G & 384H. An Attachment

7N-8750 DRIVE GP-AUXILIARY

7N8750 AUXILIARY DRIVE GROUP--3 GROOVE PULLEY--TYPE 1
An Attachment

7N-8750 DRIVE GP-AUXILIARY

7N8750 AUXILIARY DRIVE GROUP--3 GROOVE PULLEY--TYPE 2
An Attachment

DRIVE GP-FAN

4N-3141 FAN DRIVE GROUP

4N3141 FAN DRIVE GROUP -- Replaced by 7N8831 shown on Page 125A
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-8831 DRIVE GP-FAN

7N8831 FAN DRIVE GROUP
Refer To Chart--Page 112A.01
An Attachment

6N-2557 FAN DRIVE GROUP

6N2557 FAN DRIVE GROUP -- Replaced by 7N8841 shown on Page 125C
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8841 DRIVE GP-FAN

7N8841 FAN DRIVE GROUP
Refer To Chart-Page 112A.01
An Attachment

4N-2541 FAN DRIVE GROUP

4N2541 FAN DRIVE GROUP
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

6N-2559 FAN DRIVE GROUP

6N2559 FAN DRIVE GROUP -- Replaced by 7N8842 shown on Page 126A
Refer to Chart shown on Pages 112, 112-2 and 112A for usage
AN ATTACHMENT

7N-8842 DRIVE GP-FAN

7N8842 FAN DRIVE GROUP
Refer to Chart shown on Pages 112A-1 and 112A-2 for usage
AN ATTACHMENT

6N-2563 FAN DRIVE GROUP

6N2563 FAN DRIVE GROUP -- Replaced by 7N8844 shown on Page 127
Refer to Chart shown on Pages 112 and 112-2 for usage
AN ATTACHMENT

7N-8844 DRIVE GP-FAN

7N8844 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

6N-2565 FAN DRIVE GROUP

6N2565 FAN DRIVE GROUP -- Replaced by 7N8845 shown on Page 128A
Refer to Chart shown on Pages 112 and 112-2 for usage
AN ATTACHMENT

7N-8845 DRIVE GP-FAN

7N8845 FAN DRIVE GROUP
Refer To Chart-Page 112A.01
An Attachment

4N-3140 FAN DRIVE GROUP

4N3140 FAN DRIVE GROUP -- Replaced by 7N8971 shown on Page 129
Refer to Chart shown on Pages 112, 112-2 and 112A for usage
AN ATTACHMENT

7N-8971 DRIVE GP-FAN

7N8971 FAN DRIVE GROUP
Refer to Chart shown on Pages 112A-1 and 112A-2 for usage
AN ATTACHMENT

6N-2560 FAN DRIVE GROUP

6N2560 FAN DRIVE GROUP -- Replaced by 7N8966 shown on Page 130A
Refer to Chart shown on Pages 112, 112-2 and 112A for usage
AN ATTACHMENT

7N-8966 DRIVE GP-FAN

7N8966 FAN DRIVE GROUP
Refer to Chart shown on Pages 112A-1 and 112A-2 for usage
AN ATTACHMENT

6N-2564 FAN DRIVE GROUP

6N2564 FAN DRIVE GROUP -- Replaced by 7N8980 shown on Page 131
Refer to Chart shown on Pages 112 and 112-2 for usage
AN ATTACHMENT

7N-8980 DRIVE GP-FAN

7N8980 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

6N-2566 FAN DRIVE GROUP

6N2566 FAN DRIVE GROUP -- Replaced by 7N8981 shown on Page 132A
Refer to Chart shown on Pages 112 and 112-2 for usage
AN ATTACHMENT

7N-8981 DRIVE GP-FAN

7N8981 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

4N-4731 FAN DRIVE GROUP

4N4731 FAN DRIVE GROUP -- Replaced by 7N8835 shown on Page 133
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8835 DRIVE GP-FAN

7N8835 FAN DRIVE GROUP
Refer To Chart-Page 112A.02. An Attachment

6N-2567 FAN DRIVE GROUP

6N2567 FAN DRIVE GROUP--Blower
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

6N-2561 FAN DRIVE GROUP

6N2561 FAN DRIVE GROUP -- Replaced by 7N8843 shown on Page 134-2
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8843 DRIVE GP-FAN

7N8843 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

7N-2841 FAN DRIVE GROUP

7N2841 FAN DRIVE GROUP -- Blower -- Replaced by 7N8848 shown on Page 134B
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8848 DRIVE GP-FAN

7N8848 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

4N-4730 FAN DRIVE GROUP

4N4730 FAN DRIVE GROUP -- Replaced by 7N8973 shown on Page 135A
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8973 DRIVE GP-FAN

7N8973 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-2562 FAN DRIVE GROUP

6N2562 FAN DRIVE GROUP -- Replaced by 7N8967 shown on Page 135C
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8967 DRIVE GP-FAN

7N8967 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

4N-3142 FAN DRIVE GROUP

4N3142 FAN DRIVE GROUP -- Replaced by 7N8832 shown on Page 135E
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8832 DRIVE GP-FAN

7N8832 FAN DRIVE GROUP
Refer To Chart--Page 112A.01
An Attachment

6N-2558 FAN DRIVE GROUP

6N2558 FAN DRIVE GROUP -- Replaced by 7N8979 shown on Page 135H
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8979 DRIVE GP-FAN

7N8979 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

6N-2568 FAN DRIVE GROUP

6N2568 FAN DRIVE GROUP--Suction
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2842 FAN DRIVE GROUP

7N2842 FAN DRIVE GROUP -- Suction -- Replaced by 7N8965
shown on Page 136A-2. Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8965 DRIVE GP-FAN

7N8965 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

7N-3951 FAN DRIVE GROUP

7N3951 FAN DRIVE GROUP -- Blower
Serial No. 38S1 to 38S1518 inclusive
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-9339 DRIVE GP-FAN

7N9339 FAN DRIVE GROUP
Serial No. 38S1519-Up
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

6N-4499 FAN DRIVE GROUP

6N4499 FAN DRIVE GROUP -- Replaced by 7N8846 shown on Page 137
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8846 DRIVE GP-FAN

7N8846 FAN DRIVE GROUP
Refer To Chart-Page 112A.02. An Attachment

6N-4500 FAN DRIVE GROUP

6N4500 FAN DRIVE GROUP -- Replaced by 7N8847 shown on Page 138A
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8847 DRIVE GP-FAN

7N8847 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-4501 FAN DRIVE GROUP

6N4501 FAN DRIVE GROUP--Blower
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2843 FAN DRIVE GROUP

7N2843 FAN DRIVE GROUP -- Blower -- Replaced by 7N8849 shown on Page 139A-1
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8849 DRIVE GP-FAN

7N8849 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-4502 FAN DRIVE GROUP

6N4502 FAN DRIVE GROUP--Blower
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2844 FAN DRIVE GROUP

7N2844 FAN DRIVE GROUP -- Blower -- Replaced by 7N8962 shown on Page 140A
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8962 DRIVE GP-FAN

7N8962 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-4503 FAN DRIVE GROUP

6N4503 FAN DRIVE GROUP -- Replaced by 7N8982 shown on Page 141
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8982 DRIVE GP-FAN

7N8982 FAN DRIVE GROUP
Refer To Chart--Page 112A.02
An Attachment

6N-4504 FAN DRIVE GROUP

6N4504 FAN DRIVE GROUP -- Replaced by 7N8983 shown on Page 142A
Refer to Chart shown on Pages 112 and 112A for usage
AN ATTACHMENT

7N-8983 DRIVE GP-FAN

7N8983 FAN DRIVE GROUP
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-4505 FAN DRIVE GROUP

6N4505 FAN DRIVE GROUP--Suction
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2845 FAN DRIVE GROUP

7N2845 FAN DRIVE GROUP -- Suction -- Replaced by 7N8964 shown on Page 143A-1
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8964 DRIVE GP-FAN

7N8964 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

6N-4506 FAN DRIVE GROUP

6N4506 FAN DRIVE GROUP--Suction
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2846 FAN DRIVE GROUP

7N2846 FAN DRIVE GROUP -- Suction -- Replaced by 7N8963 shown on Page 144-1
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A for usage
AN ATTACHMENT

7N-8963 DRIVE GP-FAN

7N8963 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Page 112A-2 for usage
AN ATTACHMENT

7N-3950 FAN DRIVE GROUP

7N3950 FAN DRIVE GROUP -- Suction
Serial No. 38S1 to 38S1518 inclusive
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-9340 DRIVE GP-FAN

7N9340 FAN DRIVE GROUP
Serial No. 38S1519-Up
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

6N-5762 FAN DRIVE GROUP

6N5762 FAN DRIVE GROUP
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

6N-5763 FAN DRIVE GROUP

6N5763 FAN DRIVE GROUP
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2847 FAN DRIVE GROUP

7N2847 FAN DRIVE GROUP
Serial No. 38S1765-Up. Refer to Chart shown on Pages 112-2 & 112A for usage
AN ATTACHMENT

7N-2848 DRIVE GP-FAN

7N2848 FAN DRIVE GROUP
Serial No. 38S1765-Up. Refer to Chart shown on Pages 112-2 & 112A for usage
AN ATTACHMENT

6N-5764 FAN DRIVE GROUP

6N5764 FAN DRIVE GROUP
Serial No. 38S1 to 38S1764 inclusive
Refer to Chart shown on Page 112 for usage
AN ATTACHMENT

7N-2849 DRIVE GP-FAN

7N2849 FAN DRIVE GROUP
Serial No. 38S1765-Up
Refer to Chart shown on Pages 112-2 & 112A for usage
AN ATTACHMENT

6N-6485 FAN DRIVE GROUP

6N6485 FAN DRIVE GROUP -- .485 Drive Ratio -- Replaced by 8N6399 shown on Page 147B
AN ATTACHMENT

8N-6399 DRIVE GP-FAN

8N6399 FAN DRIVE GROUP--.485 DRIVE RATIO
An Attachment

6N-6486 FAN DRIVE GROUP

6N6486 FAN DRIVE GROUP -- .571 Drive Ratio -- Replaced by 8N6400 shown on Page 148A
AN ATTACHMENT

8N-6400 DRIVE GP-FAN

8N6400 FAN DRIVE GROUP -- .571 DRIVE RATIO
An Attachment

6N-6487 FAN DRIVE GROUP

6N6487 FAN DRIVE GROUP -- .681 Drive Ratio -- Replaced by 8N6401 shown on Page 149
AN ATTACHMENT

8N-6401 DRIVE GP-FAN

8N6401 FAN DRIVE GROUP -- .681 DRIVE RATIO
An Attachment

6N-6488 FAN DRIVE GROUP

6N6488 FAN DRIVE GROUP -- .800 Drive Ratio -- Replaced by 8N6402 shown on Page 150A
AN ATTACHMENT

8N-6402 DRIVE GP-FAN

8N6402 FAN DRIVE GROUP -- .800 DRIVE RATIO
An Attachment

6N-6489 FAN DRIVE GROUP

6N6489 FAN DRIVE GROUP -- .941 Drive Ratio -- Replaced by 8N6403 shown on Page 151
AN ATTACHMENT

8N-6403 DRIVE GP-FAN

8N6403 FAN DRIVE GROUP -- .941 DRIVE RATIO
An Attachment

4N-2541 FAN DRIVE GROUP

4N2541 FAN DRIVE GROUP -- Suction -- Replaced by 7N8969 shown on Page 151B
Refer to Chart shown on Page 112-2 for usage
AN ATTACHMENT

7N-8969 DRIVE GP-FAN

7N8969 FAN DRIVE GROUP -- Suction
Refer to Chart shown on Page 112A-1 for usage
AN ATTACHMENT

5N-8145 DRIVE GP-FAN

5N8145 FAN DRIVE GROUP--BLOWER
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement
An Attachment

5N-8144 DRIVE GP-FAN

5N8144 FAN DRIVE GROUP--Blower
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ARRANGEMENTS
Refer to Chart shown on Pages 112A.01 thru 112A.04 for usage. AN ATTACHMENT

5N-8139 DRIVE GP-FAN

5N8139 FAN DRIVE GROUP--Blower
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ARRANGEMENT
Refer to Chart shown on Pages 112A.01 thru 112A.04 for usage. AN ATTACHMENT

5N-8146 DRIVE GP-FAN

5N8146 FAN DRIVE GROUP--Blower
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ARRANGEMENT
Refer to Chart shown on Pages 112A.01 thru 112A.04 for usage. AN ATTACHMENT

1W-5313 DRIVE GP-FAN

1W5313 FAN DRIVE GROUP--SUCTION
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement
Refer To Chart Shown On Pages 112A.01 Thru 112A.04 For Usage
An Attachment

1W-5309 DRIVE GP-FAN

1W5309 FAN DRIVE GROUP--SUCTION
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement
Refer To Chart Shown On Pages 112A.01 Thru 112A.04 For Usage
An Attachment

5N-8142 DRIVE GP-FAN

5N8142 FAN DRIVE GROUP--Suction
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ARRANGEMENT
Refer to Chart shown on Pages 112A.01 thru 112A.04 for usage. AN ATTACHMENT

5N-8138 DRIVE GP-FAN

5N8138 FAN DRIVE GROUP--Suction
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ARRANGEMENT
Refer to Chart shown on Pages 112A.01 thru 112A.04 for usage. AN ATTACHMENT

5N-8140 DRIVE GP-FAN

5N8140 FAN DRIVE GROUP--SUCTION
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement. Refer To
Chart Shown On Pages 112A.01 Thru 112A.04 For Usage. An Attachment

5N-8143 DRIVE GP-FAN

5N8143 FAN DRIVE GROUP--SUCTION
Serial No. 38S8890-Up. An Attachment

5N-8141 DRIVE GP-FAN

5N8141 FAN DRIVE GROUP
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement
An Attachment

5N-8147 DRIVE GP-FAN

5N8147 FAN DRIVE GROUP--SUCTION
Serial No. 38S8890-Up. For Use With Low Speed Engine Arrangement
Refer To Chart-Page 112A.01 Thru 112A.04. An Attachment

DRIVE GP-PUMP

2W-9123 PUMP GP-GOV DR, FUEL INJ & TFR

2W9123 GOVERNOR DRIVE, FUEL INJECTION & TRANSFER PUMP GROUP
Serial No. 38S12557-Up
4N1101-Page 225, 1W945-Page 236A.03, 1N4932-Page 243J.06
Part Of 2W9320 Governor Conversion. An Attachment

2W-9124 PUMP GP-GOV DR, FUEL INJ & TFR

2W9124 GOVERNOR DRIVE, FUEL INJECTION & TRANSFER PUMP GROUP
4N1101-Page 225, 7N1251-Page 234, 1N4932-Page 243J.06
Part Of 2W9321 Governor Conversion
An Attachment

7N-9032 CHART

7N9032 HYDRAULIC PUMP DRIVE AND OIL SUPPLY LINES CHART
AN ATTACHMENT

7N-2645 DRIVE GP-PUMP

7N2645 HYDRAULIC PUMP DRIVE GROUP
Refer to Chart shown on Page 384D for usage
AN ATTACHMENT

7N-2642 DRIVE GP-PUMP

7N2642 HYDRAULIC PUMP DRIVE GROUP
Refer to Chart shown on Page 384D for usage
AN ATTACHMENT

4N-8509 DRIVE GP-PUMP

4N8509 HYDRAULIC PUMP DRIVE GROUP--L.H. Rear & L.H. Front

FLYWHEEL GP

4N-3825 GEAR GP-REAR

4N3825 REAR GEAR GROUP

6N-7508 FLYWHEEL GROUP

6N7508 FLYWHEEL GROUP

7N-3079 FLYWHEEL GP

7N3079 FLYWHEEL GROUP
Serial No. 38S1359 To 38S13170 inclusive

7N-3079 FLYWHEEL GP

7N3079 FLYWHEEL GROUP
Serial No. 38S13171-Up

7N-3060 FLYWHEEL GP

7N3060 FLYWHEEL GROUP
Serial No. 38S6689 To 38S13149 inclusive

7N-3060 FLYWHEEL GP

7N3060 FLYWHEEL GROUP
Serial No. 38S13150-Up

6N-1299 FLYWHEEL GP

6N1299 FLYWHEEL GROUP
Serial No. 38S6689-Up. FOR USE WITH MOBILE ENGINE ARRANGEMENT 1N3719
SHOWN ON PAGES 3A & 3B. AN ATTACHMENT

6N-1328 FLYWHEEL GP

6N1328 FLYWHEEL GROUP
Serial No. 38S6689-Up. FOR USE WITH MOBILE ENGINE ARRANGEMENT 1N3719
SHOWN ON PAGES 3A & 3B. AN ATTACHMENT

6N-9829 ADAPTER GP-FLYWHEEL

6N9829 FLYWHEEL ADAPTER GROUP
Serial No. 38S6689-Up. FOR USE WITH MOBILE ENGINE ARRANGEMENT 1N3719
SHOWN ON PAGES 3A & 3B. AN ATTACHMENT

1W-2149 FLYWHEEL GP

1W2149 FLYWHEEL GROUP
Part Of 1W2151 Flywheel Adapter Group. An Attachment

1W-2151 ADAPTER GP-FLYWHEEL

1W2151 FLYWHEEL ADAPTER GROUP
Not For Use With SAE No. 1 Flywheel Housing
1W2149-Page 63C.01. An Attachment

4W-7370 FLYWHEEL GP

4W7370 FLYWHEEL GP
For Use With A Spicer 10 Spring Dampened Disk Clutch
An Attachment

7N-0205 ADAPTER GP-TRANSMISSION

7N0205 TRANSMISSION ADAPTER GROUP
Note: Adapts An Allison Clb6061 Transmission To 3412 Twin Turbo Engine
With SAE #0 Flywheel Housing. An Attachment

7N-6291 ADAPTER GP-FLYWHEEL

7N6291 ALLISON TRANSMISSION ADAPTER GROUP
Serial No. 38S1487-Up. Adapts An Allison TC 800-900 Transmission To An
SAE #0 Flywheel Housing. An Attachment

GEAR GP

4N-3825 GEAR GP-REAR

4N3825 REAR GEAR GROUP

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S1 to 853, 855 to 860, 862, 863, 865, 868 to 870, 874, 875, 877, 879, 881,
883, 884, 890 to 892, 909, 910, 914, 915 and 38S917 inclusive

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S854, 861, 864, 866, 867, 871 to 873, 876, 878, 880, 882, 885 to 889,
893 to 908, 911 to 913, 916 and 38S918 to 38S1268 inclusive

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S1269 to 38S5151 inclusive

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S5152 To 38S11071 Inclusive

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S11072 To 38S13202 Inclusive

4N-6341 GEAR GP-FRONT TIMING

4N6341 FRONT GEAR GROUP
Serial No. 38S13203-Up

HOUSING GP-FLYWHEEL

4N-2931 HOUSING GP-FLYWHEEL

4N2931 FLYWHEEL HOUSING GROUP
Serial No. 38S12218-Up

4N-2931 HOUSING GP-FLYWHEEL

4N2931 FLYWHEEL HOUSING GROUP
Serial No. 38S1 To 38S926 Inclusive

4N-2931 HOUSING GP-FLYWHEEL

4N2931 FLYWHEEL HOUSING GROUP
Serial No. 38S927 To 38S12217 Inclusive

4N-1890 HOUSING GP-FLYWHEEL

4N1890 FLYWHEEL HOUSING GROUP
Serial No. 38S6689-Up

4N-1902 COVER GP-FLYWHEEL HOUSING

4N1902 FLYWHEEL HOUSING COVER GROUP
Serial No. 38S6689-Up

6N-1897 COVER GP-FLYWHEEL HOUSING

6N1897 FLYWHEEL HOUSING COVER GROUP

4N-7798 COVER GP-FLYWHEEL HOUSING

4N7798 FLYWHEEL HOUSING COVER GROUP
For Marine Version

HOUSING GP-FRONT

1W-0174 HOUSING GP-FRONT

1W174 FRONT HOUSING GROUP

4N-5226 HOUSING GP-FRONT

4N5226 FRONT HOUSING GROUP

4N-6798 COVER GP-FRONT HOUSING

4N6798 FRONT COVER GROUP
Serial No. 38S1 to 38S6718 inclusive

4N-6798 COVER GP-FRONT HOUSING

4N6798 FRONT COVER GROUP
Serial No. 38S6719-Up

1N-4607 COVER GP-FRONT

1N4607 FRONT COVER GROUP

LIFTING GP-ENGINE

7N-1748 LIFTING GP

7N1748 LIFTING EYE GROUP--For Marine Version

7N-7767 LIFTING GP

7N7767 LIFTING GROUP
Serial No. 38S2385-Up

7N-1750 LIFTING GP

7N1750 LIFTING EYE GROUP

5N-2312 LIFTING GP

5N2312 LIFTING GROUP--Package Generator Set
Serial No. 38S1519-Up
FOR USE WITH 5N2286 OR 5N2302 BASE GROUPS SHOWN ON PAGES 326C & 326D
AN ATTACHMENT

MOUNTING GP-ENGINE

4N-0642 SUPPORT GP-ENGINE

4N642 FRONT SUPPORT GROUP

8N-2020 SUPPORT GP-FRONT

8N2020 FRONT SUPPORT GROUP
Note: 7N9079 Support Assembly is also available as an attachment
Serial No. 38S6036-Up when used with 4N2246, 6N1155 or 6N1158
Engine Arrangements

4N-2430 SUPPORT GROUP

4N2430 SUPPORT GROUP -- Front

7N-9078 SUPPORT GP-ENGINE

7N9078 SUPPORT GROUP -- Front

6N-6499 SUPPORT GP-ENGINE

6N6499 SUPPORT GROUP--Front
To provide mobile equipment front support
AN ATTACHMENT

4N-4286 SUPPORT GP-ENGINE

4N4286 SUPPORT GROUP--Rear
AN ATTACHMENT

8N-9561 MOUNTING GP-ENGINE

8N9561 ENGINE MOUNTING GROUP -- Flexible
Provides a Vibration Isolator For Generator Set which includes a structural steel base
AN ATTACHMENT

8N-9562 MOUNTING GP-ENGINE

8N9562 ENGINE MOUNTING GROUP -- Flexible
Provides a Vibration Isolator for Generator Set Engines with
fuel tank base and battery pack
AN ATTACHMENT

PAN GP-OIL

1W-4872 BAFFLE GP-OIL

1W4872 OIL BAFFLE GROUP
Serial No. 38S8692-Up. FOR USE WITH SAE NO. 1 ALUMINUM FLYWHEEL
HOUSING ONLY. AN ATTACHMENT

4N-2647 PAN GP-OIL

4N2647 OIL PAN GROUP
Serial No. 38S1 to 38S1434 inclusive

6N-1400 COVER GP-OIL PAN

6N1400 OIL PAN COVER GROUP--With Drain Plug

4N-2647 PAN GP-OIL

4N2647 OIL PAN GROUP
Serial No. 38S1435 To 38S12688 Inclusive

4N-2647 PAN GP-OIL

4N2647 OIL PAN GROUP
Serial No. 38S12689-Up

PISTON & ROD GP

4N-1993 PISTON & ROD GP

4N1993 ROD AND PISTON GROUP--12 Required
For Direct Injection Turbocharged Engine
Serial No. 38S1 to 38S1981 inclusive

4N-1994 PISTON & ROD GP

4N1994 ROD AND PISTON GROUP--12 Required
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S1 to 38S1426 inclusive

7N-3518 PISTON & ROD GP

7N3518 CONNECTING ROD AND PISTON GROUP--12 Required
For Direct Injection Turbocharged Engine
Serial No. 38S1982 to 38S2891 inclusive

7N-3517 PISTON & ROD GP

7N3517 CONNECTING ROD AND PISTON GROUP--12 Required
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S1427 to 38S3489 inclusive

7N-3518 PISTON & ROD GP

7N3518 CONNECTING ROD & PISTON GROUP--12 REQUIRED
For Direct Injection Turbocharged Engine
Serial No. 38S2892 To 38S6342 inclusive

7N-3517 PISTON & ROD GP

7N3517 CONNECTING ROD & PISTON GROUP--12 REQUIRED
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S3490 To 38S6342 Inclusive

7N-3518 PISTON & ROD GP

7N3518 CONNECTING ROD AND PISTON GROUP--12 REQUIRED
For Direct Injection Turbocharged Engine
Serial No. 38S6343 to 38S12397 Inclusive

8N-2443 PISTON & ROD GP

8N2443 CONNECTING ROD AND PISTON GROUP--12 REQUIRED
For Precombustion Chambered Turbocharged Aftercooled Engine
Serial No. 38S6343-Up

2W-1513 PISTON & ROD GP

2W1513 CONNECTING ROD AND PISTON GROUP--12 Required
FOR DIT ENGINE. Serial No. 38S12398-Up

2W-9054 PISTON & ROD GP

2W9054 CONNECTING ROD & PISTON GROUP--12 REQUIRED
2W9053--Page 48E

2W-9053 PISTON GP

2W9053 PISTON GROUP
Part Of 2W9054 Connecting Rod & Piston

POWER TAKE-OFF GP

5N-3649 REAR CLUTCH POWER TAKE-OFF ARRANGEMENT

5N3649 REAR CLUTCH POWER TAKE-OFF ARRANGEMENT--Type 1
FOR USE WITH NO. 0 FLYWHEEL HOUSING AND FLYWHEEL
AN ATTACHMENT

5N-3648 REAR CLUTCH POWER TAKE-OFF ARRANGEMENT

5N3648 REAR CLUTCH POWER TAKE-OFF ARRANGEMENT
Replaced by 3N8618 shown on Page 378
FOR USE WITH NO. 0 FLYWHEEL HOUSING AND FLYWHEEL. AN ATTACHMENT

5N-3649 REAR CLUTCH POWER TAKE-OFF GROUP

5N3649 REAR CLUTCH POWER TAKE-OFF GROUP--Type 2
3N8615 Clutch parts are shown on Pages 382 and 383
FOR USE WITH NO. 0 FLYWHEEL HOUSING AND FLYWHEEL
AN ATTACHMENT

5N-1678 SUPPORT GP-POWER TAKE-OFF

5N1678 POWER TAKE-OFF SUPPORT GROUP--Clutch

5N-1931 SUPPORT GP-POWER TAKE-OFF

5N1931 POWER TAKE-OFF SUPPORT GROUP--CLUTCH
For Use With 3N8619 Power Take-Off Group Shown On Page 378. An Attachment

4W-7141 TAKE-OFF GP-REAR POWER

4W7141 REAR POWER TAKE-OFF GROUP--CLUTCH
4W7140--Page 377C
For Use With Irrigation Application Engines
An Attachment

3N-8618 TAKE-OFF GP-REAR POWER

3N8618 REAR CLUTCH POWER TAKE-OFF GROUP
FOR USE WITH SAE NO. 0 FLYWHEEL HOUSING
Also part of 5N3648 Rear Clutch Power Take-Off Arrangement listed on Page 377
3N8614 Clutch parts are shown on Pages 380 and 381

3N-8619 REAR CLUTCH POWER TAKE-OFF GROUP

3N8619 REAR CLUTCH POWER TAKE-OFF GROUP
Also part of 5N3649 Rear Clutch Power Take-Off Arrangement listed on Page 377
3N8615 Clutch parts are shown on Page 382 & 383

5N-1933 SUPPORT GP-POWER TAKE-OFF

5N1933 POWER TAKE-OFF SUPPORT GROUP
FOR USE WITH 2W9411 CLUTCH GROUP SHOWN ON PAGE 378C
AN ATTACHMENT

2W-4911 POWER TAKE-OFF GP-REAR

2W4911 REAR CLUTCH POWER TAKE-OFF GROUP
2W4910 Clutch parts are shown on Pages 378A & 378B
AN ATTACHMENT

2W-4913 POWER TAKE-OFF GP-REAR

2W4913 REAR POWER TAKE-OFF GROUP
2W4912-Page 378B.01
An Attachment

6N-7940 FRONT CLUTCH POWER TAKE-OFF GROUP

6N7940 FRONT CLUTCH POWER TAKE-OFF GROUP - Type 1
3N7840 Power Take-off Clutch parts are shown on Page 384

6N-7940 FRONT CLUTCH POWER TAKE-OFF GROUP

6N7940 FRONT CLUTCH POWER TAKE-OFF GROUP--Type 2
5N2851 Clutch parts are shown on Page 384B
AN ATTACHMENT

6N-7940 FRONT CLUTCH POWER TAKE-OFF GROUP

6N7940 FRONT CLUTCH POWER TAKE-OFF GROUP--Type 3
5N1729 Clutch parts are shown on Page 384C
AN ATTACHMENT

5N-6671 FRONT CLUTCH POWER TAKE-OFF GROUP

5N6671 FRONT CLUTCH POWER TAKE-OFF GROUP -- Type 1
5N6391 Clutch parts are shown on Page 384C-1
AN ATTACHMENT

5N-6671 FRONT CLUTCH POWER TAKE-OFF GROUP

5N6671 FRONT CLUTCH POWER TAKE-OFF GROUP -- Type 2
5N6729 Clutch parts are shown on Page 384C-2
AN ATTACHMENT

4W-9828 POWER TAKE-OFF GP-FRONT

4W9828 FRONT POWER TAKE-OFF GROUP
Serial No. 38S13172-Up
5N7329-Page 383B.01
For Use With 1W9613 Engine Arrangement. An Attachment

5N-7398 TAKE-OFF GP-POWER

5N7398 FRONT CLUTCH POWER TAKE-OFF GROUP
Serial No. 38S1 To 38S13171 Inclusive.
5N7329-Pages 383A & 383B.
An Attachment

PULLEY GP

4N-4130 DAMPER & PULLEY GP

4N4130 PULLEY AND DAMPER GROUP

6N-7788 DAMPER & PULLEY GP

6N7788 PULLEY AND DAMPER GROUP

8N-5572 DAMPER & PULLEY GP

8N5572 PULLEY AND DAMPER GROUP

4N-6391 PULLEY GP-AUXILIARY DRIVE

4N6391 AUXILIARY DRIVE PULLEY GROUP

SHAFT GP-STUB

3N-9541 STUB SHAFT GROUP

3N9541 STUB SHAFT GROUP--Front

3N-6538 STUB SHAFT GROUP

3N6538 STUB SHAFT GROUP--Rear

3N-7779 GUARD GP-STUB SHAFT

3N7779 STUB SHAFT GUARD GROUP
An Attachment

5N-2010 SHAFT GP-REAR STUB

5N2010 STUB SHAFT GROUP-REAR
Serial No. 38S1359-Up. An Attachment

5N-2933 SHAFT GP-FRONT STUB

5N2933 STUB SHAFT GROUP--Front
Serial No. 38S1765-Up
CANNOT BE USED WITH RADIATOR, FAN DRIVE, CRANKSHAFT PULLEY AND
FRONT POWER TAKE-OFF (CLUTCH). AN ATTACHMENT

SERPENTINE/V-BELTS

6N-2891 BELT GUARD GROUP

6N2891 BELT GUARD GROUP
Replaced by 7N2659 shown on Page 63A
FOR USE WITH ALTERNATOR WHEN A RADIATOR IS NOT USED
AN ATTACHMENT

7N-2659 BELT GUARD GROUP

7N2659 BELT GUARD GROUP
For Use With Alternator When A Surge Tank is Used. An Attachment

7N-2661 GUARD GP-BELT

7N2661 BELT GUARD GROUP
For Use With Alternator When A Radiator is Not Used. An Attachment

1W-0633 GUARD GP-BELT

1W633 BELT GUARD GROUP
Serial No. 38S8890-Up. FOR USE WITH LOW SPEED ENGINE ONLY
AN ATTACHMENT

1W-0658 GUARD GP-BELT

1W658 BELT GUARD GROUP--Alternator & Damper
Serial No. 38S8890-Up
FOR USE WITH LOW RPM ENGINE WHEN A SURGE TANK IS USED

8N-4814 GUARD GP-BELT

8N4814 BELT GUARD GROUP
FOR USE WITH THICKER FRONT SUPPORT AND WITH ALTERNATOR WHEN A
SURGE TANK IS USED. CANNOT BE USED WITH GENERATOR SET AND MARINE
AUXILIARY ENGINE. AN ATTACHMENT

8N-4813 GUARD GP-BELT

8N4813 BELT GUARD GROUP
FOR USE WITH THICKER FRONT SUPPORT AND ALTERNATOR WHEN A RADIATOR
IS NOT USED. CANNOT BE USED WITH GENERATOR SET AND MARINE AUXILIARY
ENGINE. AN ATTACHMENT

5N-4981 GUARD GP-BELT

5N4981 BELT GUARD GROUP
FOR USE WITH FIRE PUMP ENGINES
AN ATTACHMENT

8N-8840 GUARD GP-BELT

8N8840 BELT GUARD GROUP
Part of 6N5724 & 6N5725 Belt Guard Groups shown on Pages 116A & 117-2
AN ATTACHMENT

VALVE MECHANISM GP

4N-1717 ROCKER ARM GP

4N1717 ROCKER ARM GROUP
Serial No. 38S1 to 853, 855 to 860, 862, 863, 865, 868, 869, 870, 874, 875, 877, 879,
883, 884, 890, 891, 892, 898, 909, 910, 914, 915 and 38S917 inclusive

4N-1717 ROCKER ARM GP

4N1717 ARM GP--ROCKER
S/N 38S854, 861, 864, 866, 867, 871-873, 876, 878, 880, 881, 882, 885-889,
893-897, 899-908, 911-913, 916 & 38S918-Up
Part Of 4N7352 Valve

4N-7352 VALVE MECHANISM GP

4N7352 VALVE MECHANISM GROUP
Serial No. 38S1-13343

4N-9457 COVER GP-VALVE MECHANISM

4N9457 VALVE MECHANISM COVER GROUP

2W-6535 COVER GP-VALVE MECHANISM

2W6535 VALVE MECHANISM COVER GROUP

Information:

(For parts list, see above)

BASIC ENGINE

ADAPTER GP-ENGINE TO XMSN

Service Magazine

New 1U5524 Adapter Cable Available For Use With 6V9060 Spark Timing Adapter Group And 8T5300 Engine Timing Indicator Group{0779,0781}
1987/07/06

AIR COMPRESSOR GP

General Service Information

Tu-Flo 300 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C

Tu-Flo 400, 500, 1000 Compressors
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C

Tu-Flo 501 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C

Tu-Flo 600 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C

Tu-Flo 700 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C

Truck Engine News

A New Special Instruction , "Troubleshooting Compressed Air System Components and Performance" Is Available {1803, 5500}
2002/09/01

Engine News

Air Compressor Piston Now Has Five Rings{1803}
1995/09/01

Lock Now Available For Connecting Rod Bolt Used In TU-FL0501 Air Compressor
1977/03/15

A New Diagnostic Kit for the Evaluation of Air Compressor Operation is Introduced {1803}
2004/11/01

Special Instruction

Recommendations For Cold Weather Starting Of Engines Equipped To Operate Air Compressors And Drills{1000, 1450}
Recommendations For Cold Weather Starting Of Engines Equipped To Operate Air Compressors And Drills{1000, 1450}

Air Compressor Installation Instructions{1803}
Air Compressor Installation Instructions{1803}

Troubleshooting Compressed Air System Components and Performance{1803, 5500}
Troubleshooting Compressed Air System Components and Performance{1803, 5500}

Specifications

Drive For Attachments With Pulley (On Front or Rear of Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Service Magazine

Repair Kits Available For Air Compressor{1803}
1982/11/15

Lock Now Available For Connecting Rod Bolt Used In TU-FL0501 Air Compressor{1065}
1977/02/28

Clip Added To Compressor Lines Group To Keep Oil Line Away From Exhaust Manifold{1307,1065}
1978/06/12

Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21

A New Special Instruction, REHS1428 , "Troubleshooting Compressed Air System Components and Performance" Is Available {1803, 5500}
2002/09/23

A New Diagnostic Kit for the Evaluation of Air Compressor Operation is Introduced {1803}
2004/11/15

BALANCER GP

Engine News

Balancer Shaft And Gear Now Available Separately
1983/04/27

BELT TIGHTENER GP

Specifications

Belt Tension Chart
3408C & 3412C INDUSTRIAL ENGINES

V-Belt Tension Chart
3412 INDUSTRIAL AND MARINE ENGINES

CAMSHAFT GP

Engine News

Reusability Of Camshaft Rollers And Roller Followers
1982/09/22

6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings
1982/12/15

New Camshaft Gear Has More Resistance To Pitting
1983/07/06

New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings
1984/05/16

New 8T2998 Lubricant Available
1986/03/01

Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed
1986/10/01

Remanufactured Camshafts And Cam Kits Available For Parts Service
1990/12/01

New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01

Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25

Cat® Reman Has Added Valve Lifters, Rocker Arms, and Camshafts for Certain Engines and Generator Set Engines {1123, 1130, 1209, 1210}
2014/09/05

Specifications

Camshaft
3408C & 3412C INDUSTRIAL ENGINES

Camshaft
3412 INDUSTRIAL AND MARINE ENGINES

Reuse And Salvage Guidelines

Reuse and Salvage for Camshafts {1210, 1210}
Reuse and Salvage for Camshafts {1210, 1210}

Information Release Memo

PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS

APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS

CAT REMAN ANNOUNCES ADDITIONS TO CAMSHAFT PORTFOLIOS (UPDATED COVERAGE CHART)
CAT REMAN ANNOUNCES ADDITIONS TO CAMSHAFT PORTFOLIOS (UPDATED COVERAGE CHART)

Disassembly and Assembly

Camshaft
3408C & 3412C INDUSTRIAL ENGINES

Camshaft Bearings
3408C & 3412C INDUSTRIAL ENGINES

Camshaft
3412 INDUSTRIAL & MARINE ENGINES

Camshaft Bearings
3412 INDUSTRIAL & MARINE ENGINES

Valve Lifters & Push Rods
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06

6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22

New Camshaft Gear Has More Resistance To Pitting{1210,1212}
1983/07/04

New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07

Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30

New 8T2998 Lubricant Available{0645,1210}
1986/02/17

Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16

Remanufactured Camshafts And Cam Kits Available For Parts Service{1210,1211,1212}
1990/12/17

CLUTCH GP

Engine News

Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff
1979/08/08

Installation Of Rear Bearing Oil Seals In 3N6542, 3N8617, And 3N8618 Rear Power Takeoff Clutch Groups
1981/05/20

New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches
1983/09/14

Conversion Kit Available For Clutch Used In Morbark Chippers{3055}
1994/05/01

Correct Procedure To Adjust Front Power Takeoff Clutches
1978/09/27

Special Instruction

Procedure For Conversion From Oil Lubrication To Grease Lubrication For Rear Power Takeoff Clutches{3055}
Procedure For Conversion From Oil Lubrication To Grease Lubrication For Rear Power Takeoff Clutches{3055}

Specifications

Power Take-Off Clutch
3408C & 3412C INDUSTRIAL ENGINES

Power Take-Off Clutch Groups
3412 INDUSTRIAL & MARINE ENGINE ATTACHMENTS

Service Magazine

Installation Of Rear Bearing Oil Seals In 3N6542, 3N8617, And 3N8618 Rear Power Takeoff Clutch Groups{3055}
1981/05/11

Correct Procedure To Adjust Front Power Takeoff Clutches{3055}
1978/09/04

Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/06

Clutch (PTO) Warranty On Morbark Industries Products Powered By Caterpillar Engines{7758}
1992/07/20

COUPLING GP

Engine News

Service Element Available For Flexible Coupling Group
1990/01/01

Disassembly and Assembly

Coupling - Install
SR4B Generators

Coupling - Remove
SR4B Generators

Service Magazine

Quick Disconnect Coupling On Optional Modification Of 5P4150 Nozzle Tester Permits Faster Exchange Of Adapters{0651,1254}
1979/09/03

CRANKSHAFT GP

Engine News

New Design Thrust Plate Used In Crankshaft Group
1979/08/22

Check Retainer Screw Depth In Plastic Pads Of 5P8637 Crankshaft Support Groups
1980/07/09

New Bend Specification For Used Or Field Reground Crankshafts
1980/08/13

6V2086 And 6V2087 Seal And Wear Sleeve Installers Available
1980/09/10

Crankshaft Failures; New Thrust Plate
1981/05/20

Use 6V6035 Hardness Tester On Crankshafts
1982/02/24

New Crankshaft Main Bearings Used
1982/05/12

6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves
1982/11/10

Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1983/05/25

Crankshaft Failures
1983/11/30

Remanufactured Undersize Crankshafts Are Available
1984/04/11

Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/02/01

New Crankshaft Seal Groups Used On More 3400 Series Engines
1985/03/01

Why Choose Caterpillar Remanufactured Crankshafts? Because We Offer More ...
1985/09/01

Crankshaft Seal Usage On 3400 Series Engines
1986/01/01

3400 Engine Major Component Performance Guide Available
1987/07/01

New Bronze Thrust Plate Used On Center Main Bearing Of Crankshaft Groups
1990/12/01

Checking Crankshaft Journal Surface Hardness On Remanufactured Crankshafts
1991/01/01

Oil Holes In Crankshaft Main And Rod Journals
1992/10/01

Wear Sleeve Removal Tooling May "Mark" The Crankshaft{1202,1161}
1995/08/01

Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}
1995/09/01

Wider Crankshaft Gear Used{1204}
1999/09/01

Installation Procedure For Crankshaft Wear Sleeves Changed
1977/09/07

Replacement Bearings Have Aluminum Alloy With More Strength
1977/10/26

Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit
1978/03/01

New Front Crankshaft Seals and New Rear Crankshaft Seals are Now in Production {1160, 1161}
2003/05/01

A New Integral Seal Provides Improved Sealing {7555}
2003/09/01

A New Type of Main Bearing is Now Used {1203}
2007/09/17

The Process For Remanufacturing the Crankshaft Has Been Updated {1202}
2004/12/01

Use Reuse and Salvage Guidelines for Measurements of Crankshafts which Includes the Crankshaft of the Remanufactured Engine with the Serial Number Prefix 1WW {1202}
2006/10/09

A New Type of Main Bearing is Available {1202, 1203}
2008/09/29

Usability of Main Bearings and Camshaft Bearings {1202, 1203, 1218, 1219}
2008/11/24

Special Instruction

Installing Crankshaft Seals And Wear Sleeves Using The Former 9S8868, 9S8873, 9S8881 And 9S8888 Tools Groups{1160, 1161, 0704}
Installing Crankshaft Seals And Wear Sleeves Using The Former 9S8868, 9S8873, 9S8881 And 9S8888 Tools Groups{1160, 1161, 0704}

Installation Of Crankshaft Seals And Wear Sleeves{1160, 1161}
Installation Of Crankshaft Seals And Wear Sleeves{1160, 1161}

Installation Of Crankshaft Seals And Wear Sleeves{1203}
Installation Of Crankshaft Seals And Wear Sleeves{1203}

Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}

Crankshaft Seal And Wear Sleeve Installation{1160, 1161}
Crankshaft Seal And Wear Sleeve Installation{1160, 1161}

Installation Of Seal Groups With Hydrodynamic Grooves In the Seal Lip{1160, 1161}
Installation Of Seal Groups With Hydrodynamic Grooves In the Seal Lip{1160, 1161}

Special Handling Information And Installation Instructions For Crankshaft Seal Groups That Have Hydrodynamic Grooves In The Sealing Lip{1160, 1161}
Special Handling Information And Installation Instructions For Crankshaft Seal Groups That Have Hydrodynamic Grooves In The Sealing Lip{1160, 1161}

Installation Of Seal Groups With Hydrodynamic Grooves In The Seal Lip{1160, 1161}
Installation Of Seal Groups With Hydrodynamic Grooves In The Seal Lip{1160, 1161}

Service Letter-NACD

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Australia

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-CFEL

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-CSARL

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Americas

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Brazil

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Service Letter-Truck/Ag/Marine

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Technical Information Bulletin

NEW CRANKSHAFT SEALS FOR THE FRONT AND FOR THE REAR ARE NOW IN PRODUCTION BUT ARE NOT AVAILIBLE TO BE OREDERD AT THIS TIME
NEW CRANKSHAFT SEALS FOR THE FRONT AND FOR THE REAR ARE NOW IN PRODUCTION BUT ARE NOT AVAILIBLE TO BE OREDERD AT THIS TIME

Specifications

Crankshaft
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Rear Gear
3408C & 3412C INDUSTRIAL ENGINES

Connecting Rod And Main Bearing Journals
3408C & 3412C INDUSTRIAL ENGINES

Connecting Rod And Main Bearing Journals
3412 INDUSTRIAL AND MARINE ENGINES

Crankshaft
3412 INDUSTRIAL AND MARINE ENGINES

Tool Operating Manual

362-4250 Deck Height Measuring Tool{1201}
362-4250 Deck Height Measuring Tool{1201}

420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}
420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}

Service Letter-China

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Asia

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Reuse And Salvage Guidelines

Inspection and Reconditioning Procedures of Main Bearing Bores in Cylinder Blocks {1201, 1202, 1224, 1224}
Inspection and Reconditioning Procedures of Main Bearing Bores in Cylinder Blocks {1201, 1202, 1224, 1224}

Reuse and Salvage for Crankshafts {0674, 1202}
Reuse and Salvage for Crankshafts {0674, 1202}

Visual Inspection of Main Bearings and Connecting Rod Bearings {1202, 1203, 1225, 1230}
Visual Inspection of Main Bearings and Connecting Rod Bearings {1202, 1203, 1225, 1230}

Reuse and Salvage for Engine Dampers {1202, 1205}
Reuse and Salvage for Engine Dampers {1202, 1205}

Service Letter-APD

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Disassembly and Assembly

Crankshaft Front Seal & Wear Sleeve
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Rear Seal & Wear Sleeve
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Main Bearings
3408C & 3412C INDUSTRIAL ENGINES

Vibration Damper & Pulley
3412 INDUSTRIAL & MARINE ENGINES

Crankshaft Front Seal & Wear Sleeve
3412 INDUSTRIAL & MARINE ENGINES

Crankshaft Rear Seal & Wear Sleeve
3412 INDUSTRIAL & MARINE ENGINES

Crankshaft Main Bearings
3412 INDUSTRIAL & MARINE ENGINES

Crankshaft
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01

New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}
1981/01/19

Crankshaft Failures; New Thrust Plate{1203,1202,1230}
1981/05/04

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear{1206}
1981/05/25

Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22

Use 6V6035 Hardness Tester On Crankshafts{0651,1202}
1982/02/22

Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12

Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03

New Crankshaft Main Bearings Used{1203}
1982/05/10

6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves{0622,0626,1160,1161}
1982/11/01

Oil Passage Plugs Are No Longer Installed In Crankshafts For Parts Service{1202}
1983/04/04

New Connecting Rod Bearings Used{1219,1230}
1983/04/04

Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16

Reuse Of Engine Bearings{1230}
1983/05/16

New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10

Crankshaft Failures{1202,1230}
1983/11/21

Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21

Remanufactured Undersize Crankshafts Are Available{1202}
1983/11/21

Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11

New Crankshaft Seal Groups Used On More 3400 Series Engines{1160,1161}
1985/03/11

Installing New Copper Bonded Bearings Can Extend Engine Life{1230,1203,1219}
1985/04/29

Remanufactured Crankshafts Are Available In Standard And Two Undersize Dimensions (U.S. and Canada){1202,7754}
1985/11/18

Crankshaft Seal Usage On 3400 Series Engines{1160,1161}
1985/12/16

Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05

Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08

Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
1977/01/17

Tools To Remove Wear Sleeves From Crankshafts{0621,7558}
1977/04/18

Tools To Install Crankshaft Seal And Wear Sleeve{1160,1161,0622}
1977/07/11

Installation Procedure For Crankshaft Wear Sleeves Changed{1202,1160,1161}
1977/09/05

Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24

Crankshaft Support Groups Are Available To Measure Bent Crankshafts{0653,1202}
1977/11/07

Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26

Mid-Life Bearing Maintenance Recommendations {1203}
1987/09/14

Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit{1202,1160,1161}
1978/02/27

Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12

Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28

New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04

New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/08/27

New Bronze Thrust Plate Used On Center Main Bearing Of Crankshaft Groups{1203}
1990/12/17

Checking Crankshaft Journal Surface Hardness On Remanufactured Crankshafts{1202}
1991/01/07

Connecting Rod Bearing Eliminates The Need For Mid-Life Connecting Rod Bearing Roll-In{1219,1202}
1992/08/31

Oil Holes In Crankshaft Main And Rod Journals{1202}
1992/11/09

Wider Crankshaft Gear Used {1204}
1999/09/13

Remanufactured 3412 Crankshafts {1202}
2000/01/24

Use the 171-7212 Wear Sleeve to Repair the Crankshaft Hub {1160}
2011/09/20

New Front Crankshaft Seals and New Rear Crankshaft Seals are Now in Production {1160, 1161}
2006/06/26

A New Type of Main Bearing is Available {1202, 1203}
2004/05/03

40 Power Microscope is Available for Inspecting Bearing Journals on Crankshafts {0777, 1202}
2006/01/16

CYLINDER BLOCK GP

Truck Engine News

The Cylinder Liners Have a New Appearance {1216}
2005/03/01

Engine News

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block
1979/05/09

In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09

New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay
1981/01/21

Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods
1981/07/15

Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear
1981/11/25

New Cylinder Liners And O-Ring Seals Give Longer Seal Life
1981/12/16

Carbon Build-Up In Combustion And Inlet Areas
1982/04/07

Use Correct Part Numbers For Main And Connecting Rod Bearings
1982/05/12

New Crankshaft Main Bearings Used
1982/05/12

Inspection Marks On Bearings
1982/05/12

New Head Gasket Improves Seal Between Block And Liner Flange
1982/10/20

Use FT1711 Light Table For Cylinder Liner Inspection
1982/12/15

New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip
1982/12/15

6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings
1982/12/15

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19

Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1983/05/25

Damaged Lifter Bores In 3400 Series Engines Can Be Used Again
1983/07/06

New Liner Seat Insert Available
1983/08/17

New Connecting Rod And Main Bearings Used
1983/11/30

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16

New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings
1984/05/16

New Cylinder Block Groups Used
1984/10/03

Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/02/01

Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/06/01

Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/08/01

New Cylinder Liner Available
1986/02/01

Main And Connecting Rod Bearing Part Numbers
1987/01/01

3400 Engine Major Component Performance Guide Available
1987/07/01

Mid-Life Bearing Maintenance Recommendations
1987/09/01

New Piston Cooling Jets Used
1987/09/01

New Liner Seat Insert Available
1988/12/01

New Bronze Thrust Plate Used On Center Main Bearing Of Crankshaft Groups
1990/12/01

Service Tips For Piston Cooling Jets (Tubes)
1990/12/01

Thinner Spacer Plates Available For Parts Service
1992/06/01

Connecting Rod Bearing Eliminates The Need For Mid-Life Connecting Rod Bearing Roll-In
1992/08/01

New Liner Seat Inserts Available
1992/11/01

Cylinder Pack Puller Groups Improved
1993/01/01

Be Sure Correct Piston Cooling Jets Are Installed{1331}
1994/12/01

Flywheel Housing To Cylinder Block Joint Improvements{1157,1201}
1997/01/22

New Block Cover Used{1201}
1999/05/01

New Cylinder Liners
1977/01/28

Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength
1977/01/28

Modification To Holder To Machine Counterbore On Cylinder Block
1977/03/15

Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13

5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster
1978/01/18

New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing
1978/05/03

Use New Main Bearings In Replacement Cylinder Blocks
1978/07/05

Change In Procedure To Check Main Bearing Clearance
1978/08/30

The Cylinder Liners Have a New Appearance {1216}
2005/03/14

Special Instruction

Using Caterpillar Cylinder Pack Pulling Tools{1239}
Using Caterpillar Cylinder Pack Pulling Tools{1239}

Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}

Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}
Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}

Installation Of Crankshaft Seals And Wear Sleeves{1203}
Installation Of Crankshaft Seals And Wear Sleeves{1203}

Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}

Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}

Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}

Use Of 8T0455 Cylinder Liner Projection Indicator Group{0760, 1216}
Use Of 8T0455 Cylinder Liner Projection Indicator Group{0760, 1216}

Installation Of 2W3815 Or 5N93 Inserts{1217}
Installation Of 2W3815 Or 5N93 Inserts{1217}

Cylinder Block Cleaning Procedure{1201}
Cylinder Block Cleaning Procedure{1201}

Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}

Installation Instructions For The 160-9874 Gasket Kit {1213, 7555}
Installation Instructions For The 160-9874 Gasket Kit {1213, 7555}

Reuse and Salvage for Cast Iron Cylinder Blocks {1201, 1201}
Reuse and Salvage for Cast Iron Cylinder Blocks {1201, 1201}

Using the 6V-7840 Deck Checking Tool Assembly {0701, 1201, 7225}
Using the 6V-7840 Deck Checking Tool Assembly {0701, 1201, 7225}

Visual Inspection of Liner Seats for 3400, C15, C16, and C18 Series Engines{1200}
Visual Inspection of Liner Seats for 3400, C15, C16, and C18 Series Engines{1200}

Service Letter-NACD

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Australia

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-CFEL

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-CSARL

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Americas

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Brazil

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Truck/Ag/Marine

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Technical Information Bulletin

Liner Flange Breakage
Liner Flange Breakage

Damaged Liner Seals on 3400 Reman Cylinder Packs {1201, 1216, 1239}
Damaged Liner Seals on 3400 Reman Cylinder Packs {1201, 1216, 1239}

Specifications

Cylinder Block
3408C & 3412C INDUSTRIAL ENGINES

Cylinder Liners
3408C & 3412C INDUSTRIAL ENGINES

Cylinder Liner Projection
3408C & 3412C INDUSTRIAL ENGINES

Connecting Rod And Main Bearing Journals
3408C & 3412C INDUSTRIAL ENGINES

Cylinder Block
3412 INDUSTRIAL AND MARINE ENGINES

Cylinder Liners
3412 INDUSTRIAL AND MARINE ENGINES

Cylinder Liner Projection
3412 INDUSTRIAL AND MARINE ENGINES

Connecting Rod And Main Bearing Journals
3412 INDUSTRIAL AND MARINE ENGINES

Tool Operating Manual

9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}

362-4250 Deck Height Measuring Tool{1201}
362-4250 Deck Height Measuring Tool{1201}

Setup and Operation of the 368-8645 Tool Kit (CRANKCASE PRESSURE){1317}
Setup and Operation of the 368-8645 Tool Kit (CRANKCASE PRESSURE){1317}

Using the 8T-2700 Blowby/Air Flow Indicator{0781, 0785, 1317}
Using the 8T-2700 Blowby/Air Flow Indicator{0781, 0785, 1317}

420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}
420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}

Using the 242-3980 Piston Groove Gauge on 3500A and B Engines with Monotherm Pistons using the 329-2630 and 329-2631 Piston Groove Gauges on 3500B Engines with Monotherm Pistons{0374, 0599, 0700, 0701, 0705}
Using the 242-3980 Piston Groove Gauge on 3500A and B Engines with Monotherm Pistons using the 329-2630 and 329-2631 Piston Groove Gauges on 3500B Engines with Monotherm Pistons{0374, 0599, 0700, 0701, 0705}

Service Letter-China

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Asia

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Reuse And Salvage Guidelines

Reuse and Salvage for Cast Iron Cylinder Blocks {1201, 1201}
Reuse and Salvage for Cast Iron Cylinder Blocks {1201, 1201}

Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}

Reuse and Salvage for 3200 Engine Cylinder Blocks {1201}
Reuse and Salvage for 3200 Engine Cylinder Blocks {1201}

Inspection and Reuse Guideline of Cylinder Liners in Cat Engines {0761, 1201, 1213, 1216, 1216}
Inspection and Reuse Guideline of Cylinder Liners in Cat Engines {0761, 1201, 1213, 1216, 1216}

Using the 6V-7840 Deck Checking Tool Assembly {0701, 1201, 7225}
Using the 6V-7840 Deck Checking Tool Assembly {0701, 1201, 7225}

Cylinder Block Salvage Procedure Using Belzona® 1311 (Ceramic R Metal) {0700, 0701, 1000, 1201}
Cylinder Block Salvage Procedure Using Belzona® 1311 (Ceramic R Metal) {0700, 0701, 1000, 1201}

Cylinder Block Cleaning and Audit Procedure {0644, 0680, 0701}
Cylinder Block Cleaning and Audit Procedure {0644, 0680, 0701}

Information Release Memo

PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS

Service Letter-APD

New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock

Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Disassembly and Assembly

Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES

Spacer Plates
3408C & 3412C INDUSTRIAL ENGINES

Camshaft Bearings
3408C & 3412C INDUSTRIAL ENGINES

Cylinder Liners
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Main Bearings
3408C & 3412C INDUSTRIAL ENGINES

Piston Cooling Tubes
3408C & 3412C INDUSTRIAL ENGINES

Camshaft Bearings
3412 INDUSTRIAL & MARINE ENGINES

Valve Seat Inserts
3412 INDUSTRIAL & MARINE ENGINES

Spacer Plates
3412 INDUSTRIAL & MARINE ENGINES

Piston Cooling Tubes
3412 INDUSTRIAL & MARINE ENGINES

Cylinder Liners
3412 INDUSTRIAL & MARINE ENGINES

Crankshaft Main Bearings
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}
1981/01/19

Crankshaft Failures; New Thrust Plate{1203,1202,1230}
1981/05/04

Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods{1214,1218,1201,1225,1307}
1981/07/13

Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16

New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/14

Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1981/12/21

Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12

Use New Special Instruction To Install 5P6595 Insert In Cylinder Liner Seats{1216,0621}
1982/05/03

Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03

New Crankshaft Main Bearings Used{1203}
1982/05/10

New Head Gasket Improves Seal Between Block And Liner Flange{1101,1201}
1982/09/27

Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11

6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22

Use FT1711 Light Table For Cylinder Liner Inspection {0652,1216}
1982/11/29

New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20

Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16

Reuse Of Engine Bearings{1230}
1983/05/16

Damaged Lifter Bores In 3400 Series Engines Can Be Used Again{1201,0374}
1983/07/04

New Liner Seat Insert Available{1217}
1983/08/15

New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10

Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23

New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07

Salvaging Cylinder Block Top Decks After Liner Seat Erosion{1201,1216,1217}
1984/06/04

New Cylinder Block Groups Used{1201}
1984/10/01

Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11

Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15

New Cylinder Liner Available{1201}
1986/02/10

Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05

Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02

Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08

Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08

New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27

New Cylinder Liners{1216}
1977/01/24

Modification To Holder To Machine Counterbore On Cylinder Block{0664,1201}
1977/02/28

Use New Procedure To Tighten Flywheel Housing Bolts{1157,1201}
1977/07/04

Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08

Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24

Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing{1151,1201}
1987/02/23

Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20

Recommendations For Preventing Cooling System Damage {1201}
1987/08/31

Mid-Life Bearing Maintenance Recommendations {1203}
1987/09/14

New Piston Cooling Jets Used {1213,1214}
1987/09/14

5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster{0621,1216}
1978/01/09

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing{1307}
1978/05/01

Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12

New Information On Reusable Cylinder Liners{1216}
1978/06/19

Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28

Head Bolt Holes In Cylinder Blocks Can Be Repaired{1201,1101}
1988/10/24

New Liner Seat Insert Available{1201,1216,1217}
1988/11/14

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block{1157,1201}
1979/04/30

New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04

Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27

New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/08/27

Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17

Improved Head Gasket Used; Service Tips {1124,1216,1221,7568}
1990/02/26

Dimensions For Aluminum Washer{1221}
1990/07/23

Service Tips For Piston Cooling Jets (Tubes){1331}
1990/11/26

Remanufactured Camshafts And Cam Kits Available For Parts Service{1210,1211,1212}
1990/12/17

New Bronze Thrust Plate Used On Center Main Bearing Of Crankshaft Groups{1203}
1990/12/17

Checking Crankshaft Journal Surface Hardness On Remanufactured Crankshafts{1202}
1991/01/07

No Gaskets Used With Aluminum Flywheel Housings{1157}
1991/10/14

Thinner Spacer Plates Available For Parts Service{1221}
1992/06/29

New Liner Seat Inserts Available{1217}
1992/11/09

Cylinder Pack Puller Groups Improved {0705,1239}
1993/01/18

New Cylinder Head Gasket, Spacer Plate And Head Bolts Used; New Cylinder Liner Projection Measurement Method; New Cylinder Head Torque Sequence; Improved Coolant Flow (Cylinder Heads) {1124,1221,1216,1101}
1994/07/04

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing {1151,1157,1162}
1996/11/25

Damaged Lifter Bores In 3400 Series Engines Can Be Used Again {1201}
2005/01/24

The Cylinder Liners Have a New Appearance {1216}
2005/03/14

CYLINDER HEAD GP

Engine News

New Tool Makes Glow Plug Wire Removal Easier
1981/05/20

Service Manual Information About Inside Diameters Of Valve Guides
1981/10/21

New Fuel Nozzle Adapter Assembly Used
1982/02/24

Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07

Carbon Build-Up In Combustion And Inlet Areas
1982/04/07

Improved Inlet And Exhaust Valves
1982/09/22

Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20

New Head Gasket Improves Seal Between Block And Liner Flange
1982/10/20

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19

Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19

Engine Valve Stem "Use Again" Specifications
1983/03/16

New Fuel Nozzle Adapters Used
1983/05/25

Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures
1983/10/26

New Valve Lifter Assemblies Used In Valve Mechanism Groups
1983/11/30

New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position
1984/03/07

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16

Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11

New Inlet Valves Used In Cylinder Heads
1984/09/12

New High Alloy Material Is Used In Cylinder Head Assemblies
1984/10/24

A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures" Is Available
1985/03/01

New Cylinder Heads And Fuel Nozzle Adapters Used
1985/07/01

Extra Injection Nozzle Clamp Helps Prevent Injection Nozzle Damage
1985/08/01

Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System
1985/11/01

Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01

Determining The Cause Of Glow Plug Tip Failures
1986/06/01

Valve Lash Adjustment Interval Is Changed
1986/07/01

Change To Interval For Valve Lash Adjustment
1987/02/01

Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts
1987/04/01

Silicone Rubber Water Seals Available
1987/07/01

Improved Valve Mechanism Cover Groups
1988/01/01

Seal Retainer And Seals Are Required When A New Cylinder Head Assembly Is Installed
1988/11/01

Improved Head Gasket Used; Service Tips
1990/03/01

Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1990/05/01

Dimensions For Aluminum Washer
1990/08/01

New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads
1990/10/01

Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/01

Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/18

New Intake And Exhaust Valves Used {1105,1100}
1994/06/01

New Rocker Arm Adjustment Screw Used To Adjust Valve Clearance {1123,1100}
1994/06/01

New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01

New Inlet And Exhaust Valves Have Thinner Heads{1105}
1995/02/01

Valve Lash Adjustment Intervals{1105}
1995/08/01

New And Reconditioned Valve Projection Specifications{1105}
1995/09/01

Be Sure To Use The Correct Inlet And Exhaust Valves In Engines Equipped With Valve Bridges That Do Not Ride On Dowels{1105,1121}
1998/03/01

Improved Exhaust Valve Now Available
1977/03/15

Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25

5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29

Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13

Tolerance Added To Valve Clearance Specifications
1978/01/18

Use Again Specifications For Valve Springs Are Changed
1978/03/01

5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed
1978/07/05

Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16

Remanufactured 3412 Crankshafts {1100}
2000/01/01

Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03

Clearly Mark all of the Cracks on the Cylinder Head Including Remanufactured Engines with Serial Number Prefixes 1WW, BFF, DLA, BFD, BKY, BLR, ECP, BGE, BKS, BLJ, B1A, BNF and 2MZ {1101, 7754}
2006/04/10

Improved Cylinder Head Assemblies Are Available through Cat Reman for Certain Commercial Engines {1100}
2014/10/10

A New Water Seal Assembly Is Now Used on All 3408, 3412, C27 and C32 Commercial Engines {1100, 7555}
2013/05/13

Special Instruction

Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}
Use Of The 5P7333 Tool Group For Bridge Dowel Repair{1101}

Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}
Use Of The 1P7451 Valve Guide Honing Group{0673, 1104}

Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}

Use Of 6V4805 Valve Seat Insert Puller Group{0703}
Use Of 6V4805 Valve Seat Insert Puller Group{0703}

Installation Of 2W3815 Or 5N93 Inserts{1217}
Installation Of 2W3815 Or 5N93 Inserts{1217}

Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}

Use Of 6V9050 Exhaust Stud Removal Group{1100}
Use Of 6V9050 Exhaust Stud Removal Group{1100}

Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}

Service Letter-NACD

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Brazil

Service Letter-Truck/Ag/Marine

Technical Information Bulletin

Exhaust Gas Leakage At Cylinder Head To Manifold Connection
Exhaust Gas Leakage At Cylinder Head To Manifold Connection

Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}
Failures of the 4W-5733 Valve Adapter and the 4W-5719 Adapter As on Certain 3408 and 3412 Engines{1100}

Specifications

Fuel Injection Nozzle And Adapter
3408C & 3412C INDUSTRIAL ENGINES

Valves, Valve Springs And Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES

Cylinder Heads
3408C & 3412C INDUSTRIAL ENGINES

Valves, Valve Springs And Valve Seat Inserts
3412 INDUSTRIAL AND MARINE ENGINES

Cylinder Heads
3412 INDUSTRIAL AND MARINE ENGINES

Tool Operating Manual

Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}

Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}

185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}

188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}

CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}

{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}

M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}
M0088789: 550-9152 Gage Ring Assembly {0374, 0599, 0700, 0701, 0759, 1100, 1105}

Service Letter-China

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Service Letter-Asia

Reuse And Salvage Guidelines

Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}

Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}

Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}

Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}

Applied Failure Analysis

Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}

Information Release Memo

PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS

APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS

CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS
CAT REMAN ANNOUNCES ADDITIONAL CYLINDER HEAD RELEASES FOR MINING AND OTHER APPLICATIONS

Service Letter-APD

Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock
Certain Remanufactured Crankshafts For Use In 3412 Engines Need To Be Removed From Parts Stock

Disassembly and Assembly

Cylinder Head
3408C & 3412C INDUSTRIAL ENGINES

Valves
3408C & 3412C INDUSTRIAL ENGINES

Valve Guides
3408C & 3412C INDUSTRIAL ENGINES

Bridge Dowels
3408C & 3412C INDUSTRIAL ENGINES

Valve Seat Inserts
3408C & 3412C INDUSTRIAL ENGINES

Fuel Injection Nozzles & Adapters
3408C & 3412C INDUSTRIAL ENGINES

Glow Plugs (Precombustion Chambers)
3412 INDUSTRIAL & MARINE ENGINES

Fuel Injection Nozzles & Adapters (Later 7000 Series)
3412 INDUSTRIAL & MARINE ENGINES

Precombustion Chambers
3412 INDUSTRIAL & MARINE ENGINES

Direct Injection Adapters
3412 INDUSTRIAL & MARINE ENGINES

Cylinder Head Assemblies
3412 INDUSTRIAL & MARINE ENGINES

Valves
3412 INDUSTRIAL & MARINE ENGINES

Valve Seat Inserts
3412 INDUSTRIAL & MARINE ENGINES

Bridge Dowels
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Use The Correct Water Temperature Contactor{1350,1100}
1980/02/11

Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05

New Fuel Nozzle Adapter Assembly Used{1106}
1982/02/15

Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08

Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}
1982/03/22

Vacuum Tester Checks For Leaks Between Valve Face and Seat{0651,1103,1105}
1982/09/06

Improved Inlet And Exhaust Valves{1105}
1982/09/06

New Instruction Card Available For 6V87 Valve Stem Gauge{0653}
1982/09/06

New Head Gasket Improves Seal Between Block And Liner Flange{1101,1201}
1982/09/27

Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18

New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20

Engine Valve Stem "Use Again" Specifications{0653,1105}
1983/02/28

New Fuel Nozzle Adapters Used{1106}
1983/05/09

New Liner Seat Insert Available{1217}
1983/08/15

Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17

New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position{1106,1252}
1984/02/27

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23

Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}
1984/07/02

New Inlet Valve Used{1105}
1984/09/03

New High Alloy Material Is Used In Cylinder Head Assemblies{1101}
1984/10/15

Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14

New Cylinder Heads And Fuel Nozzle Adapters Used{1101,1106}
1985/07/01

Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15

Changes To Fuel Systems {1250,1251,1252,1253,1254,1100}
1985/09/16

Cylinder Head And Valve Rocker Arm Brackets Have Oil Supply Passages In A Different Location To Prevent Possible Oil Leakage Into Cooling System {1100,1102,1350}
1985/10/21

Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07

Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02

Valve Lash Adjustment Interval Is Changed {1105}
1986/07/07

Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08

Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15

New Water Temperature Regulator Has A Closer Fit At The Valve Seat To Keep Leakage At A Minimum{1355}
1977/01/17

Improved Exhaust Valve Now Available{1105}
1977/02/28

Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16

5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads{0663,1101}
1977/06/20

Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08

Tools Now Available To Ream And/Or Hone 0.500" (12.70 mm) Diameter Valve Guides{0663}
1977/08/22

Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30

Silicone Rubber Water Seals Available{1100}
1987/07/06

Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16

Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30

Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06

New Lifting Eye Group Used On 3412 Industrial Engines Equipped With Turbochargers{1101,1000}
1978/04/10

5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed{0644,1100}
1978/06/19

Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned{1254,1101}
1978/08/07

Head Bolt Holes In Cylinder Blocks Can Be Repaired{1201,1101}
1988/10/24

A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28

Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27

Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17

Improved Head Gasket Used; Service Tips {1124,1216,1221,7568}
1990/02/26

Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1121}
1990/04/30

New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads{1105,1101}
1990/10/08

Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/07

Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/04

Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems{1105}
1994/09/05

New Water Seals Used In Cylinder Head Assemblies{1124}
1994/09/05

Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03

A New Water Seal Assembly Is Now Used on All 3408 and 3412 Engines {1100, 7555}
2013/08/06

DAMPER GP

Engine News

Different Vibration Damper Now Used
1980/04/30

New Engine Crankshaft Rubber Damper Assembly Uses Improved Rubber Material {1205}
1994/10/01

Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}
1995/09/01

Procedure for Installing the Front Gears and Dampers on Certain Caterpillar Engines {1151, 1162, 1205, 1206}
2008/02/25

Service Letter-NACD

PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE DAMPER ADAPTOR BOLTS ON CERTAIN 3408, 3408C, 3408E, 3412, 3412C, 3412D, 3412E, C27, C32 ENGINES 773E OFF HIGHWAY TRUCKS, AND D10T, D9R TRACK TYPE TRACTORS
PRODUCT IMPROVEMENT PROGRAM FOR TIGHTENING THE DAMPER ADAPTOR BOLTS ON CERTAIN 3408, 3408C, 3408E, 3412, 3412C, 3412D, 3412E, C27, C32 ENGINES 773E OFF HIGHWAY TRUCKS, AND D10T, D9R TRACK TYPE TRACTORS

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Specifications

Pulley & Damper Group
3408C & 3412C INDUSTRIAL ENGINES

Vibration Damper And Pulley
3412 INDUSTRIAL AND MARINE ENGINES

Service Letter-China

Service Letter-Asia

Reuse And Salvage Guidelines

Reuse and Salvage for Cast Iron & Steel Pulleys and Stub Shafts {1205, 1207, 1384, 1425}
Reuse and Salvage for Cast Iron & Steel Pulleys and Stub Shafts {1205, 1207, 1384, 1425}

Reuse and Salvage for Engine Dampers {1202, 1205}
Reuse and Salvage for Engine Dampers {1202, 1205}

Service Letter-APD

Disassembly and Assembly

Vibration Damper & Pulley
3408C & 3412C INDUSTRIAL ENGINES

Vibration Damper & Pulley
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Different Vibration Damper Now Used{1205}
1980/03/24

Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23

8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut {0601}
1988/01/25

Fan Drive Pulley Group Components{1359}
1993/03/08

Fan Drive Pulley Group Components{1359}
1993/04/12

DRIVE GP-ACCESSORY

Engine News

New Bearing Race Is Used On The Auxiliary Drive
1984/06/20

New Outer Bearing Race Used In Auxiliary Fan Drive Group
1984/10/24

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01

Procedure for Installing the Front Gears and Dampers on Certain Caterpillar Engines {1151, 1162, 1205, 1206}
2008/02/25

Specifications

Auxiliary Drive
3408C & 3412C INDUSTRIAL ENGINES

Drive For Attachments With Pulley (On Front or Rear of Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Auxiliary Drives
3412 INDUSTRIAL & MARINE ENGINE ATTACHMENTS

Service Magazine

New Bearing Race Is Used On The Auxiliary Drive{1359}
1984/06/04

New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}
1984/10/29

New, Tougher Gasket Used Between Block And Front Housing{1151,7555}
1985/12/09

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing{1151,1201}
1987/02/23

Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/06

DRIVE GP-AUXILIARY

Engine News

New Bearing Race Is Used On The Auxiliary Drive
1984/06/20

New Outer Bearing Race Used In Auxiliary Fan Drive Group
1984/10/24

Specifications

Auxiliary Drive
3408C & 3412C INDUSTRIAL ENGINES

Drive For Attachments With Pulley (On Front or Rear of Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Auxiliary Drives
3412 INDUSTRIAL & MARINE ENGINE ATTACHMENTS

Service Magazine

New Bearing Race Is Used On The Auxiliary Drive{1359}
1984/06/04

New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}
1984/10/29

DRIVE GP-FAN

Engine News

Longer Bolts Are Now Used To Fasten The Engine Fan Assembly To The Adapter
1979/01/24

Correct Lubrication Procedure Will Prevent Damage To Fan Drive
1982/03/17

New Outer Bearing Race Used In Auxiliary Fan Drive Group
1984/10/24

Fan Drive Pulley Group Components
1993/04/01

Service Magazine

Correct Lubrication Procedure Will Prevent Damage To Fan Drive{1359,0374,0375}
1982/03/08

New Washer And Bolts Keep Fan Drive Tight{1359}
1983/04/04

New Bearing Race Is Used On The Auxiliary Drive{1359}
1984/06/04

New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}
1984/10/29

Longer Bolts Are Now Used To Fasten The Engine Fan Assembly To The Adapter{1356}
1978/12/18

Fan Drive Pulley Group Components{1359}
1993/03/08

Fan Drive Pulley Group Components{1359}
1993/04/12

DRIVE GP-PUMP

Engine News

Jacket Water Pumps Now Include New Tapered Roller Bearings {1361}
1995/03/01

Special Instruction

Installation of Water Pump Seal Group{1361}
Installation of Water Pump Seal Group{1361}

Service Letter-NACD

Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Brazil

Service Letter-Truck/Ag/Marine

Specifications

Governor And Fuel Pump Drive (Automatic Timing Advance Unit)
3408C & 3412C INDUSTRIAL ENGINES

Fuel Transfer Pump Drive
3408C & 3412C INDUSTRIAL ENGINES

Governor And Fuel Pump Drive (Automatic Timing Advance Unit) (Standard Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Governor And Fuel Pump Drive (Automatic Timing Advance Unit) (Low Speed Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Fuel Transfer Pump Drive
3412 INDUSTRIAL AND MARINE ENGINES

Drive For Attachments With Pulley (On Front or Rear of Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Service Letter-China

Service Letter-Asia

Service Letter-APD

Disassembly and Assembly

Water Pump
3408C & 3412C INDUSTRIAL ENGINES

Governor & Fuel Pump Drive
3408C & 3412C INDUSTRIAL ENGINES

Water Pump (Industrial Engine)
3412 INDUSTRIAL & MARINE ENGINES

Water Pump (Marine Engine)
3412 INDUSTRIAL & MARINE ENGINES

Water Pump (Industrial & Marine Engines)
3412 INDUSTRIAL & MARINE ENGINES

Sea Water Pump
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28

Additional Remanufactured Water Pumps Available{1361}
1983/10/31

Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}
1984/07/16

Inspection And Installation Procedures For Water Pump Shaft And Seals{1361,1389,1373}
1985/06/17

New, Corrosion Resistant Water Pump Shaft Available{1389,1361}
1985/08/05

Use Insert To Repair Bearing Seat In Water Pump Housing{1361}
1977/03/07

New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11

New Water Pump Cover Has A Baffle And Wall To Send Coolant Flow From Bypass Line Directly Into Water Pump{1361}
1978/01/30

Replacement Seal Group For Water Pump Impeller Now Has All The Seal Parts Plus An Installation Tool{1361,0622}
1978/02/13

New Seal Group Used In Water Pump Groups{1361}
1993/04/12

New Cast Iron Water Pump Adapter Resistant To Erosion{1361}
1993/08/09

DRIVE GP-WATER PUMP

Special Instruction

Installation of Water Pump Seal Group{1361}
Installation of Water Pump Seal Group{1361}

Service Letter-NACD

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Brazil

Service Letter-Truck/Ag/Marine

Service Letter-China

Service Letter-Asia

Service Letter-APD

Service Magazine

Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28

Additional Remanufactured Water Pumps Available{1361}
1983/10/31

New, Corrosion Resistant Water Pump Shaft Available{1389,1361}
1985/08/05

Use Insert To Repair Bearing Seat In Water Pump Housing{1361}
1977/03/07

New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11

New Water Pump Cover Has A Baffle And Wall To Send Coolant Flow From Bypass Line Directly Into Water Pump{1361}
1978/01/30

Replacement Seal Group For Water Pump Impeller Now Has All The Seal Parts Plus An Installation Tool{1361,0622}
1978/02/13

New Seal Group Used In Water Pump Groups{1361}
1993/04/12

ENGINE GP

Engine News

Proper Storage Procedures Are Available For Commercial Engines {1000}
Proper Storage Procedures Are Available For Commercial Engines {1000}

Special Instruction

Dynamometer Test Specifications For Caterpillar Engines{1000}
Dynamometer Test Specifications For Caterpillar Engines{1000}

Troubleshooting Engine Vibration In Vehicular Equipment{1000}
Troubleshooting Engine Vibration In Vehicular Equipment{1000}

Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}

Use of the 4C3502 Engine Repair Indicator Kit{0781, 1000}
Use of the 4C3502 Engine Repair Indicator Kit{0781, 1000}

Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}
Retrofit Installation of Coolant Loss Sensor{1353, 1395, 7422, 7470}

Installation of 106-5328 Conversion Arrangement For 3412 (825, 900, & 1000 HP) Marine Engines With 9Z5359 Modification{1000, 1022}
Installation of 106-5328 Conversion Arrangement For 3412 (825, 900, & 1000 HP) Marine Engines With 9Z5359 Modification{1000, 1022}

Using The 5P6524 Engine Timing Indicator Group And 1P540 Flow Checking Tool Group{0782, 1000}
Using The 5P6524 Engine Timing Indicator Group And 1P540 Flow Checking Tool Group{0782, 1000}

Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}

Oil and Your Engine {1000}
Oil and Your Engine {1000}

Technical Information Bulletin

Radiator Noise
Radiator Noise

Service Magazine

Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22

Separate Valve Stem Gauges Available{0653,1000}
1982/06/07

Analyzing A Major Engine Failure{1000}
1982/07/19

Added Methods To Decrease The Effects Of High Sulfur Fuels{1355,1280,1318,1000}
1982/08/30

Reference Chart for Engine Improvements{0374,1000}
1982/10/25

New Index Lists Engine Special Instructions By SMCS Code{1000,0374}
1986/04/07

Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08

New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16

Testing The Starter On The Engine{1401,1450}
1987/05/04

The Caterpillar Fuel Flow Monitor System Available {0782,1000,1250}
1987/05/11

Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25

Microfiche For Replacement Engine Bills Of Material {0374,1000}
1987/10/26

Explanation Of Nomenclature Used In Engine Performance{1000,0374}
1978/05/15

Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21

Careful, Correct Installation And Maintenance Of Fuel Injection Lines Is Very Important To Prevent Possible Engine Damage, Fire And Other Problems{1252}
1979/04/23

Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}
1979/09/24

Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24

Engine Coolant Can Be Recycled{1395}
1989/11/13

Fan Drive Pulley Group Components{1359}
1993/03/08

Fan Drive Pulley Group Components{1359}
1993/04/12

Engine Storage and Engine Start-Up After Storage {1000, 1300, 1348, 7418}
Engine Storage and Engine Start-Up After Storage {1000, 1300, 1348, 7418}

FASTENER GP-ENGINE

Reuse And Salvage Guidelines

Inspection and Reuse of Critical Fasteners Used in All Engines {7553, 7553}
Inspection and Reuse of Critical Fasteners Used in All Engines {7553, 7553}

FLYWHEEL GP

Engine News

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block
1979/05/09

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear
1981/05/20

New Camshaft Gear Has More Resistance To Pitting
1983/07/06

3512 Generator Set Engines (1500 And 1800 RPM) Must Use Flywheel Balance Weights
1983/08/17

Deflection Of Flywheel Housings Should Be Controlled During Transportation
1984/10/24

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts
1987/03/01

No Gaskets Used With Aluminum Flywheel Housings
1991/10/01

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket
1992/09/01

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01

Flywheel Housing To Cylinder Block Joint Improvements{1157,1201}
1997/01/22

Use New Procedure To Tighten Flywheel Housing Bolts
1977/07/13

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing
1978/05/03

Procedure to Use the Correct Mounting Bolts with the 10R-2356 Flywheel As {1156}
2007/12/24

Special Instruction

Installation Of Flywheel Adapter Groups(Allison Transmissions){1157}
Installation Of Flywheel Adapter Groups(Allison Transmissions){1157}

Installation Of Service Flywheel Groups For 3406, 3408 And 3412 Engines{1156}
Installation Of Service Flywheel Groups For 3406, 3408 And 3412 Engines{1156}

Service Letter-NACD

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Australia

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-CFEL

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-CSARL

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Americas

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Brazil

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Truck/Ag/Marine

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Specifications

Crankshaft Rear Gear
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Housing
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Adapter
3408C & 3412C INDUSTRIAL ENGINES

Flywheel
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Housing (4N1890)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing (4N2931)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing (2W3204)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing Bore
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing Runout Face Runout (axial eccentricity) Of The Flywheel Housing:
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Runout
3412 INDUSTRIAL AND MARINE ENGINES

Rear Drive Gear
3412 INDUSTRIAL AND MARINE ENGINES

Service Letter-China

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Asia

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Reuse And Salvage Guidelines

Reuse and Salvage for Flywheel Assemblies {1156}
Reuse and Salvage for Flywheel Assemblies {1156}

Service Letter-APD

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Disassembly and Assembly

Flywheel
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Housing
3408C & 3412C INDUSTRIAL ENGINES

Flywheel
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Industrial Engine)
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Marine Engine)
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear{1206}
1981/05/25

Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22

Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11

Labyrinth-Type Seal Ring Available For Rear Power Takeoff{3055}
1983/04/04

3512 Generator Set Engines (1500 And 1800 RPM) Must Use Flywheel Balance Weights{1156}
1983/08/15

Deflection Of Flywheel Housings Should Be Controlled During Transportation{1157}
1984/10/08

Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05

Use New Procedure To Tighten Flywheel Housing Bolts{1157,1201}
1977/07/04

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16

New 1U5524 Adapter Cable Available For Use With 6V9060 Spark Timing Adapter Group And 8T5300 Engine Timing Indicator Group{0779,0781}
1987/07/06

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing{1307}
1978/05/01

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block{1157,1201}
1979/04/30

No Gaskets Used With Aluminum Flywheel Housings{1157}
1991/10/14

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket{1157,1307}
1992/09/21

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing {1151,1157,1162}
1996/11/25

New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}
1999/08/02

Wider Crankshaft Gear Used {1204}
1999/09/13

New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}
1999/10/25

GEAR GP

Engine News

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear
1981/05/20

New Camshaft Gear Has More Resistance To Pitting
1983/07/06

New, Tougher Gasket Used Between Block And Front Housing
1986/01/01

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing
1987/02/01

New Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks
1987/09/01

New Bolts With "Lock-Patch" Used In Front Timing Gear Groups{1206}
1995/06/01

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01

Wider Crankshaft Gear Used{1204}
1999/09/01

Procedure for Installing the Front Gears and Dampers on Certain Caterpillar Engines {1151, 1162, 1205, 1206}
2008/02/25

An Improved Front Gear Train Timing Procedure Is Used for 3406E, 3456, C-15, C-16, C15, and C18 Engines {1206}
2012/12/14

Service Letter-NACD

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Truck/Ag/Marine

Specifications

Front Gear Group (Timing)
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Rear Gear
3408C & 3412C INDUSTRIAL ENGINES

Timing Gears (Front of the Engine)
3412 INDUSTRIAL AND MARINE ENGINES

Timing Gear Housing
3412 INDUSTRIAL AND MARINE ENGINES

Rear Drive Gear
3412 INDUSTRIAL AND MARINE ENGINES

Service Letter-China

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Service Letter-Asia

Reuse And Salvage Guidelines

Reuse and Salvage for Gear Train and Gear Shafts on Engines {0679, 1151, 1162, 1206}
Reuse and Salvage for Gear Train and Gear Shafts on Engines {0679, 1151, 1162, 1206}

Service Letter-APD

Remove All 1140966 Crank Gears From Parts Stock
Remove All 1140966 Crank Gears From Parts Stock

Disassembly and Assembly

Timing Gear Cover
3408C & 3412C INDUSTRIAL ENGINES

Timing Gears
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Front Seal & Wear Sleeve
3412 INDUSTRIAL & MARINE ENGINES

Timing Gear Cover
3412 INDUSTRIAL & MARINE ENGINES

Timing Gears
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear{1206}
1981/05/25

6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31

Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22

Labyrinth-Type Seal Ring Available For Rear Power Takeoff{3055}
1983/04/04

New, Tougher Gasket Used Between Block And Front Housing{1151,7555}
1985/12/09

Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing{1151,1201}
1987/02/23

New Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks{1162,1166}
1987/09/21

Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/06

New Recommendations For Lubrication, Maintenance, And Adjustment{3055,7520,7521,7527}
1991/03/11

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing {1151,1157,1162}
1996/11/25

Wider Crankshaft Gear Used {1204}
1999/09/13

An Improved Front Gear Train Timing Procedure Is Used for 3406E, 3456, C-15, C-16, C15, and C18 Engines {1206}
2012/12/13

HOUSING GP-FLYWHEEL

Engine News

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block
1979/05/09

New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches
1983/09/14

Deflection Of Flywheel Housings Should Be Controlled During Transportation
1984/10/24

No Gaskets Used With Aluminum Flywheel Housings
1991/10/01

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket
1992/09/01

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01

Flywheel Housing To Cylinder Block Joint Improvements{1157,1201}
1997/01/22

New Cast Iron Flywheel Housing Used In Flywheel Housing Groups {1157}
1998/01/20

Use New Procedure To Tighten Flywheel Housing Bolts
1977/07/13

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing
1978/05/03

A New Integral Seal Provides Improved Sealing {7555}
2003/09/01

A New Front and Rear Cover Seal Is Available for Certain 3400 Series Industrial Engines {1151, 1157, 7555}
2013/03/29

Special Instruction

Installation Of Service Flywheel Groups For 3406, 3408 And 3412 Engines{1156}
Installation Of Service Flywheel Groups For 3406, 3408 And 3412 Engines{1156}

Service Letter-NACD

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Brazil

Service Letter-Truck/Ag/Marine

Specifications

Flywheel Housing
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Housing (4N1890)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing (4N2931)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing (2W3204)
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing Bore
3412 INDUSTRIAL AND MARINE ENGINES

Flywheel Housing Runout Face Runout (axial eccentricity) Of The Flywheel Housing:
3412 INDUSTRIAL AND MARINE ENGINES

Service Letter-China

Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock

Service Letter-Asia

Service Letter-APD

Disassembly and Assembly

Crankshaft Rear Seal & Wear Sleeve
3408C & 3412C INDUSTRIAL ENGINES

Flywheel Housing
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Rear Seal & Wear Sleeve
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Industrial Engine)
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Marine Engine)
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Correct Use Of 6V2023 Flow Check Adapter Group Is Important To Prevent Damage To An Engine{0651,0654,1250}
1982/03/22

Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11

New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches{3055}
1983/09/12

Deflection Of Flywheel Housings Should Be Controlled During Transportation{1157}
1984/10/08

Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03

Use New Procedure To Tighten Flywheel Housing Bolts{1157,1201}
1977/07/04

New 1U5524 Adapter Cable Available For Use With 6V9060 Spark Timing Adapter Group And 8T5300 Engine Timing Indicator Group{0779,0781}
1987/07/06

External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing{1307}
1978/05/01

Improved Gasket Now Used Between The Flywheel Housing And The Cylinder Block{1157,1201}
1979/04/30

Use The 6V2034 Micrometer Adapter To Measure Lip Thickness Of Engine Valves {0653,1105}
1979/10/29

No Gaskets Used With Aluminum Flywheel Housings{1157}
1991/10/14

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket{1157,1307}
1992/09/21

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing {1151,1157,1162}
1996/11/25

New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}
1999/08/02

New Flywheel Housing Gasket For 3408 And 3412 Machine Engines {1152}
1999/10/25

HOUSING GP-FRONT

Engine News

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear
1981/05/20

New Camshaft Gear Has More Resistance To Pitting
1983/07/06

New, Tougher Gasket Used Between Block And Front Housing
1986/01/01

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing
1987/02/01

New Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks
1987/09/01

New Bolts With "Lock-Patch" Used In Front Timing Gear Groups{1206}
1995/06/01

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01

Procedure for Installing the Front Gears and Dampers on Certain Caterpillar Engines {1151, 1162, 1205, 1206}
2008/02/25

A New Front and Rear Cover Seal Is Available for Certain 3400 Series Industrial Engines {1151, 1157, 7555}
2013/03/29

Specifications

Front Housing And Covers
3408C & 3412C INDUSTRIAL ENGINES

Timing Gear Housing
3412 INDUSTRIAL AND MARINE ENGINES

Reuse And Salvage Guidelines

Thermal Spray Procedures for Engine Front Cover{0679, 1150, 1151, 1162}
Thermal Spray Procedures for Engine Front Cover{0679, 1150, 1151, 1162}

Disassembly and Assembly

Crankshaft Front Seal & Wear Sleeve
3408C & 3412C INDUSTRIAL ENGINES

Timing Gear Cover
3408C & 3412C INDUSTRIAL ENGINES

Crankshaft Front Seal & Wear Sleeve
3412 INDUSTRIAL & MARINE ENGINES

Timing Gear Cover
3412 INDUSTRIAL & MARINE ENGINES

Timing Gears
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Washer Added Between Bolt And Thrust Plate For Oil Pump Idler Gear{1206}
1981/05/25

6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31

New, Tougher Gasket Used Between Block And Front Housing{1151,7555}
1985/12/09

Stronger Timing Gear Housing; Additional Stud Used At Top Of Housing{1151,1201}
1987/02/23

New Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks{1162,1166}
1987/09/21

Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing {1151,1157,1162}
1996/11/25

LIFTING GP-ENGINE

Engine News

5P8700 Lifting Brackets Permit Cylinder Head Assembly To Be Removed And Installed
1978/07/05

MISCELLANEOUS INFORMATION

Tool Operating Manual

9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}

Service Magazine

Connecting Rod Changes And Replacement Information{1218}
1980/03/03

Different Vibration Damper Now Used{1205}
1980/03/24

6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01

Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed{1315,1302}
1980/11/17

Later Pistons Have A Smaller Number Of Drain Holes In Oil Ring Groove{1214,1213}
1981/02/23

Installation Of Rear Bearing Oil Seals In 3N6542, 3N8617, And 3N8618 Rear Power Takeoff Clutch Groups{3055}
1981/05/11

6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31

Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05

Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16

New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/14

Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1981/12/21

Piston And Connecting Rod Assembly Storage Cabinet{0600}
1982/01/18

New Piston Pin Retainer Used{1214,1225}
1982/02/08

Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22

Use 6V6035 Hardness Tester On Crankshafts{0651,1202}
1982/02/22

Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08

Correct Lubrication Procedure Will Prevent Damage To Fan Drive{1359,0374,0375}
1982/03/08

Correct Use Of 6V2023 Flow Check Adapter Group Is Important To Prevent Damage To An Engine{0651,0654,1250}
1982/03/22

Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12

New Crankshaft Main Bearings Used{1203}
1982/05/10

Separate Valve Stem Gauges Available{0653,1000}
1982/06/07

Added Methods To Decrease The Effects Of High Sulfur Fuels{1355,1280,1318,1000}
1982/08/30

Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06

New Head Gasket Improves Seal Between Block And Liner Flange{1101,1201}
1982/09/27

Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11

Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18

Reference Chart for Engine Improvements{0374,1000}
1982/10/25

6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves{0622,0626,1160,1161}
1982/11/01

Use 6V6147 Polishing Wheel To Clean Piston Pins{0675,1214}
1982/11/08

6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22

Use the 6V6167 Contact Point to Measure Wear Steps on Piston Pins{0653}
1982/11/22

New Piston Group Has A Thicker Top Ring{1215,1214,1213,1225,1226,1227}
1982/12/13

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20

Engine Valve Stem "Use Again" Specifications{0653,1105}
1983/02/28

Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28

Labyrinth-Type Seal Ring Available For Rear Power Takeoff{3055}
1983/04/04

New Washer And Bolts Keep Fan Drive Tight{1359}
1983/04/04

New Connecting Rod Bearings Used{1219,1230}
1983/04/04

Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16

Reuse Of Engine Bearings{1230}
1983/05/16

Damaged Lifter Bores In 3400 Series Engines Can Be Used Again{1201,0374}
1983/07/04

New Camshaft Gear Has More Resistance To Pitting{1210,1212}
1983/07/04

New Dust Covers Available For Twin Disc IBF318 And IBF321 Rear Power Take-Off Clutches{3055}
1983/09/12

Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}
1983/09/12

Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17

Additional Remanufactured Water Pumps Available{1361}
1983/10/31

New Valve Lifter Assemblies Used In Valve Mechanism Groups{1209}
1983/10/31

Crankshaft Failures{1202,1230}
1983/11/21

Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21

Remanufactured Undersize Crankshafts Are Available{1202}
1983/11/21

Repair Of Drain Plug Threads In Oil Pan{1302}
1984/04/23

Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23

New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07

Salvaging Cylinder Block Top Decks After Liner Seat Erosion{1201,1216,1217}
1984/06/04

New Bearing Race Is Used On The Auxiliary Drive{1359}
1984/06/04

Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}
1984/07/16

New Cylinder Block Groups Used{1201}
1984/10/01

Deflection Of Flywheel Housings Should Be Controlled During Transportation{1157}
1984/10/08

New Outer Bearing Race Used In Auxiliary Fan Drive Group{1390}
1984/10/29

Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11

New Crankshaft Seal Groups Used On More 3400 Series Engines{1160,1161}
1985/03/11

Installing New Copper Bonded Bearings Can Extend Engine Life{1230,1203,1219}
1985/04/29

Be Sure Correct Piston Rings Are Used On 3400 Series Engines{1215,1214}
1985/05/06

Use Caterpillar 6V50 Engine Timing Indicator For Accurate Readings{0782,0785,0775}
1985/05/27

Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03

Inspection And Installation Procedures For Water Pump Shaft And Seals{1361,1389,1373}
1985/06/17

Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15

Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30

Two, New Top Dead Center Magnetic Transducers Available{0651,0653,1214,1250}
1985/10/07

Two Different Piston Oil Ring Designs Used{1215}
1985/11/11

Remanufactured Crankshafts Are Available In Standard And Two Undersize Dimensions (U.S. and Canada){1202,7754}
1985/11/18

New, Tougher Gasket Used Between Block And Front Housing{1151,7555}
1985/12/09

Crankshaft Seal Usage On 3400 Series Engines{1160,1161}
1985/12/16

New Cylinder Liner Available{1201}
1986/02/10

New 8T2998 Lubricant Available{0645,1210}
1986/02/17

Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07

New Index Lists Engine Special Instructions By SMCS Code{1000,0374}
1986/04/07

Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05

Increase Piston Reuse With Keystone Piston Ring Gauge Group{1214,1215}
1986/06/16

Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08

Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08

Check Connecting Rods After Engine Failures Involving Hydraulic Lock{1218,1225}
1986/10/20

Truck sale:

95,720

Caterpillar 3412, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.

96,795

Caterpillar 3412, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.

93,569

Caterpillar 3412, mobile generator sets, Construction
- mobile generator sets
FINANZAUTO S.A.

60,000

Caterpillar 3412, Stationary Generator Sets, Construction
- Stationary Generator Sets
FOLEY EQUIPMENT COMPANY

159,600

Caterpillar 3412, Stationary Generator Sets, Construction
- Stationary Generator Sets
FOLEY EQUIPMENT COMPANY