3412B Marine Engine 60M00001-05160 BASIC ENGINE Caterpillar SIS

MARINE ENGINE 3412 MARINE ENGINE 60M
3412B Marine Engine 60M00001-05160 SEBP1098 3412 60M (1976)

Parts group 3412:

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BASIC ENGINE

BARRING GP

253-2468 BARRING GP

253-2468 BARRING GP -RH
AN ATTACHMENT

5R-7425 BARRING GP

5R-7425 BARRING GP -LH
AN ATTACHMENT

CAMSHAFT GP

4N-0965 CAMSHAFT GP

4N-0965 CAMSHAFT GP
S/N 60M1-2237

4N-0965 CAMSHAFT GP

4N-0965 CAMSHAFT GP
S/N 60M400-5160

4N-9053 CAMSHAFT GP

4N-9053 CAMSHAFT GP
S/N 60M1-2237
PART OF 4N-0965 CAMSHAFT GP

CLUTCH GP

5N-3789 CLUTCH AS

5N-3789 CLUTCH AS
PART OF 5N-7329 CLUTCH GP
AN ATTACHMENT

5N-3790 CLUTCH AS

5N-3790 CLUTCH AS
PART OF 5N-7330 CLUTCH GP
AN ATTACHMENT

5N-1729 CLUTCH GP

5N-1729 CLUTCH GP
PART OF 6N-7939 POWER TAKE-OFF GP
AN ATTACHMENT

5N-1730 CLUTCH GP

5N-1730 CLUTCH GP
PART OF 6N-7938 POWER TAKE-OFF GP
AN ATTACHMENT

5N-7329 CLUTCH GP

5N-7329 CLUTCH GP
S/N 60M1-2372
PART OF 5N-7399 POWER TAKE-OFF GP
AN ATTACHMENT

5N-7329 CLUTCH GP

5N-7329 CLUTCH GP
S/N 60M2373-5160
PART OF 4W-9829, 5N-6399 POWER TAKE-OFF GP
AN ATTACHMENT

5N-7330 CLUTCH GP

5N-7330 CLUTCH GP
PART OF 5N-6400, 5N-7400 POWER TAKE-OFF GP
Type 1
AN ATTACHMENT

5N-7330 CLUTCH GP

5N-7330 CLUTCH GP
PART OF 4W-9830, 5N-7400 POWER TAKE-OFF GP
Type 2
AN ATTACHMENT

CRANKSHAFT GP

9Y-5381 CRANKSHAFT AS

9Y-5381 CRANKSHAFT AS
S/N 60M2295-5160
FIELD REPLACEMENT FOR 1W-6213 CRANKSHAFT AS
FIELD INSTALLATION

4N-0922 CRANKSHAFT GP

4N-0922 CRANKSHAFT GP
S/N 60M1-2294

4N-0922 CRANKSHAFT GP

4N-0922 CRANKSHAFT GP
S/N 60M2295-2407

4N-0922 CRANKSHAFT GP

4N-0922 CRANKSHAFT GP
S/N 60M2408-5160

243-6718 KIT-CRANKSHAFT BEARING

243-6718 KIT-CRANKSHAFT BEARING
FIELD INSTALLATION

7N-1999 SEAL GP-CRANKSHAFT

7N-1999 SEAL GP-CRANKSHAFT
FIELD INSTALLATION

CYLINDER BLOCK GP

6N-1849 COVER GP-CYLINDER BLOCK

6N-1849 COVER GP-CYLINDER BLOCK

122-8601 CYLINDER BLOCK AS

122-8601 CYLINDER BLOCK AS
S/N 60M400-5160
PART OF 122-8607 CYLINDER BLOCK GP
FIELD REPLACEMENT ORDER @@@@@ 2W-5208@@@@@

4N-2638 CYLINDER BLOCK AS

4N-2638 CYLINDER BLOCK AS
PART OF 1W-5915, 4N-2624 CYLINDER BLOCK GP
FIELD REPLACEMENT ORDER @@@@@ 2W-5208@@@@@

122-8607 CYLINDER BLOCK GP

122-8607 CYLINDER BLOCK GP
S/N 60M400-5160

1W-5915 CYLINDER BLOCK GP

1W-5915 CYLINDER BLOCK GP
S/N 60M1528-2379

1W-5915 CYLINDER BLOCK GP

1W-5915 CYLINDER BLOCK GP
S/N 60M2380-2404

1W-5915 CYLINDER BLOCK GP

1W-5915 CYLINDER BLOCK GP
S/N 60M2405-5160

2W-5208 CYLINDER BLOCK GP

2W-5208 CYLINDER BLOCK GP
FIELD REPLACEMENT FOR @@@@@ 4N-2638@@@@@, @@@@@122-8601@@@@@
FIELD INSTALLATION

4N-2624 CYLINDER BLOCK GP

4N-2624 CYLINDER BLOCK GP
S/N 60M1-2379

4N-2624 CYLINDER BLOCK GP

4N-2624 CYLINDER BLOCK GP
S/N 60M2380-2403

4N-2624 CYLINDER BLOCK GP

4N-2624 CYLINDER BLOCK GP
S/N 60M2404-5160

442-5359 KIT-CYLINDER PACK

CYLINDER HEAD GP

143-0040 CYLINDER HEAD AS

143-0040 CYLINDER HEAD AS
S/N 60M4401-5160
PART OF 143-0041, 7W-2225 CYLINDER HEAD AS
FIELD REPLACEMENT ORDER @@@@@143-0041@@@@@
AN ATTACHMENT

143-0041 CYLINDER HEAD AS

143-0041 CYLINDER HEAD AS
S/N 60M4401-5160
FIELD REPLACEMENT FOR @@@@@143-0040@@@@@

143-0046 CYLINDER HEAD AS

143-0046 CYLINDER HEAD AS
S/N 60M5160-5160
PART OF 143-0047, 7W-2243 CYLINDER HEAD AS
FIELD REPLACEMENT ORDER @@@@@143-0047@@@@@
ALSO AN ATTACHMENT

143-0047 CYLINDER HEAD AS

143-0047 CYLINDER HEAD AS
FIELD REPLACEMENT FOR @@@@@143-0046@@@@@

1W-5960 CYLINDER HEAD AS

1W-5960 CYLINDER HEAD AS
S/N 60M2238-2287
PART OF 1W-5961, 7N-0848 CYLINDER HEAD AS, 1W-5959 CYLINDER HEAD GP
FIELD REPLACEMENT ORDER @@@@@ 7N-0848@@@@@

1W-5960 CYLINDER HEAD AS

1W-5960 CYLINDER HEAD AS
S/N 60M2288-2572
PART OF 1W-5961, 7N-0848 CYLINDER HEAD AS, 1W-5959 CYLINDER HEAD GP
FIELD REPLACEMENT ORDER @@@@@ 7N-0848@@@@@

1W-5961 CYLINDER HEAD AS

1W-5961 CYLINDER HEAD AS
S/N 60M2238-2572
FIELD REPLACEMENT FOR @@@@@ 1W-5960@@@@@

7N-0848 CYLINDER HEAD AS

7N-0848 CYLINDER HEAD AS
S/N 60M2238-2572
FIELD REPLACEMENT FOR @@@@@ 1W-5960@@@@@

7W-2225 CYLINDER HEAD AS

7W-2225 CYLINDER HEAD AS
S/N 60M3778-5160
PART OF 4P-9351, 5N-9004 KIT-ENGINE PARTS
AN ATTACHMENT

7W-2241 CYLINDER HEAD AS

7W-2241 CYLINDER HEAD AS
S/N 60M2477-5159
PART OF 7W-2243 CYLINDER HEAD AS, 7W-2242 CYLINDER HEAD GP
FIELD REPLACEMENT ORDER @@@@@ 7W-2243@@@@@
ALSO AN ATTACHMENT

7W-2243 CYLINDER HEAD AS

7W-2243 CYLINDER HEAD AS
S/N 60M1-5159
PART OF 4P-9353, 4P-9354, 4P-9355, 4P-9356, 5N-1715, 5N-8530, 7C-3431 KIT-ENGINE PARTS
FIELD REPLACEMENT FOR @@@@@ 7W-2241@@@@@
AN ATTACHMENT AND FIELD INSTALLATION

7W-2243 CYLINDER HEAD AS

7W-2243 CYLINDER HEAD AS
S/N 60M5160-5160
PART OF 7W-2242 CYLINDER HEAD GP, 131-6602, 131-6603, 4P-9353, 4P-9354, 4P-9355, 4P-9356, 5N-1715, 5N-8530, 5N-9578, 7C-3431 KIT-ENGINE PARTS
FIELD REPLACEMENT FOR @@@@@ 7W-2241@@@@@
ALSO AN ATTACHMENT AND FIELD INSTALLATION

1W-5958 CYLINDER HEAD GP

1W-5958 CYLINDER HEAD GP
S/N 60M2238-2261

1W-5958 CYLINDER HEAD GP

1W-5958 CYLINDER HEAD GP
S/N 60M2262-2572

1W-5959 CYLINDER HEAD GP

1W-5959 CYLINDER HEAD GP
S/N 60M2238-2572
PART OF 1W-5958, 4N-2622 CYLINDER HEAD GP

2W-5746 CYLINDER HEAD GP

2W-5746 CYLINDER HEAD GP
S/N 60M2082-2129
PART OF 4N-2622 CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP
S/N 60M1-2081

4N-2622 CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP
S/N 60M2082-2129

4N-2622 CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP
S/N 60M2130-2251

4N-2622 CYLINDER HEAD GP

4N-2622 CYLINDER HEAD GP
S/N 60M2252-5160

4N-2623 CYLINDER HEAD GP

4N-2623 CYLINDER HEAD GP
S/N 60M1-1914

4W-7007 CYLINDER HEAD GP

4W-7007 CYLINDER HEAD GP
S/N 60M2477-2603

4W-7007 CYLINDER HEAD GP

4W-7007 CYLINDER HEAD GP
S/N 60M5029-5160

4W-7007 CYLINDER HEAD GP

4W-7007 CYLINDER HEAD GP
S/N 60M400-5028

7N-0847 CYLINDER HEAD GP

7N-0847 CYLINDER HEAD GP
S/N 60M1-2081; 60M2130-2251
PART OF 4N-2622, 4N-2623 CYLINDER HEAD GP

7W-2242 CYLINDER HEAD GP

7W-2242 CYLINDER HEAD GP
S/N 60M2477-5159
PART OF 4W-7007 CYLINDER HEAD GP

7W-2242 CYLINDER HEAD GP

7W-2242 CYLINDER HEAD GP
S/N 60M5160-5160
PART OF 4W-7007 CYLINDER HEAD GP

419-8601 KIT-CYLINDER HEAD GASKET

419-8601 KIT-CYLINDER HEAD GASKET
CONTAINS GASKETS & SEALS TO REINSTALL A SINGLE CYLINDER HEAD
PART OF 419-8233, 421-9722, 436-3145 KIT-ENGINE OVERHAUL
FOR USE WITH @@@@@ 4N-2247@@@@@, @@@@@ 6N-1160@@@@@, @@@@@ 4W-1146@@@@@
ALSO FIELD INSTALLATION

460-8246 KIT-CYLINDER HEAD REPAIR

460-8246 KIT-CYLINDER HEAD REPAIR
3412 HEAD REBUILD KIT
FIELD INSTALLATION

DAMPER GP

4N-2583 DAMPER & PULLEY GP

4N-2583 DAMPER & PULLEY GP

5N-5322 DAMPER & PULLEY GP

5N-5322 DAMPER & PULLEY GP
S/N 60M3887-5160
CANNOT BE USED WITH FRONT CRANKSHAFT MOUNTED ATTACHMENT

6N-2890 GUARD GP-DAMPER

6N-2890 GUARD GP-DAMPER
FOR USE WITH ALTERNATOR OR FRONT POWER TAKE-OFF
AN ATTACHMENT

DRIVE GP-AUXILIARY

1N-3270 DRIVE GP-AUXILIARY

1N-3270 DRIVE GP-AUXILIARY
LH FRONT, 3 GROOVE PULLEY
Type 1
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

1N-3270 DRIVE GP-AUXILIARY

1N-3270 DRIVE GP-AUXILIARY
LH FRONT, 3 GROOVE PULLEY
Type 2
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

4N-8479 DRIVE GP-AUXILIARY

4N-8479 DRIVE GP-AUXILIARY
AN ATTACHMENT

7N-8750 DRIVE GP-AUXILIARY

7N-8750 DRIVE GP-AUXILIARY
3 GROOVE PULLEY
Type 1
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

7N-8750 DRIVE GP-AUXILIARY

7N-8750 DRIVE GP-AUXILIARY
3 GROOVE PULLEY
Type 2
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

7N-8881 DRIVE GP-AUXILIARY

7N-8881 DRIVE GP-AUXILIARY
2 GROOVE PULLEY
Type 1
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

7N-8881 DRIVE GP-AUXILIARY

7N-8881 DRIVE GP-AUXILIARY
2 GROOVE PULLEY
Type 2
CANNOT BE USED WITH HEAT EXCHANGER COOLED ENGINE
AN ATTACHMENT

DRIVE GP-PUMP

4N-8509 DRIVE GP-PUMP

4N-8509 DRIVE GP-PUMP
AN ATTACHMENT

7N-2645 DRIVE GP-PUMP

7N-2645 DRIVE GP-PUMP
LH AND RH REAR, MOUNTED ON LH REAR OF SAE NO. 1 FLYWHEEL HOUSING
FOR USE WITH CUSTOMER SUPPLIED "A" SIZE PUMP WITH SAE NO. 2 BOLT MOUNTING FLANGE
AN ATTACHMENT

4W-9827 MOUNTING GP-HYD PUMP DRIVE

4W-9827 MOUNTING GP-HYD PUMP DRIVE
S/N 60M2373-5160
FOR USE WITH MARINE PROP ONLY
AN ATTACHMENT

5N-2670 MOUNTING GP-HYD PUMP DRIVE

5N-2670 MOUNTING GP-HYD PUMP DRIVE
S/N 60M1-2372
FOR USE WITH MARINE PROP ONLY
AN ATTACHMENT

FLYWHEEL GP

4N-0805 FLYWHEEL GP

4N-0805 FLYWHEEL GP
S/N 60M1-4015
FOR USE WITH TWIN DISC RUBBER BLOCK DRIVE
ALSO AN ATTACHMENT

7N-3079 FLYWHEEL GP

7N-3079 FLYWHEEL GP
S/N 60M400-5160
FOR USE WITH SAE NO. 0 FLYWHEEL HOUSING
ALSO AN ATTACHMENT

7W-0136 FLYWHEEL GP

7W-0136 FLYWHEEL GP
AN ATTACHMENT

4N-3825 GEAR GP-REAR

4N-3825 GEAR GP-REAR

GEAR GP

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M1-1679

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M1680-2407

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M2408-5160

4N-3825 GEAR GP-REAR

4N-3825 GEAR GP-REAR

1W-0174 HOUSING GP-FRONT

1W-0174 HOUSING GP-FRONT
S/N 60M1528-2882

1W-0174 HOUSING GP-FRONT

1W-0174 HOUSING GP-FRONT
S/N 60M2883-5160

4N-5226 HOUSING GP-FRONT

4N-5226 HOUSING GP-FRONT
S/N 60M1-2882
TIMING GEAR

4N-5226 HOUSING GP-FRONT

4N-5226 HOUSING GP-FRONT
S/N 60M2883-5160
TIMING GEAR

GUARD GP-BELT

1W-1630 GUARD GP-BELT

1W-1630 GUARD GP-BELT
DAMPER & ALTERNATOR
AN ATTACHMENT

6N-3541 GUARD GP-BELT

6N-3541 GUARD GP-BELT -DAMPER & ALTERNATOR
AN ATTACHMENT

HOUSING GP-FLYWHEEL

4N-7798 COVER GP-FLYWHEEL HOUSING

4N-7798 COVER GP-FLYWHEEL HOUSING
S/N 60M1-4760
REAR STRUCTURE

4N-7798 COVER GP-FLYWHEEL HOUSING

4N-7798 COVER GP-FLYWHEEL HOUSING
S/N 60M4761-5160
REAR STRUCTURE

4N-1890 HOUSING GP-FLYWHEEL

4N-1890 HOUSING GP-FLYWHEEL
Type 1
FOR USE WITH SAE NO. 1 FLYWHEEL HOUSING AND SINGLE REAR MOUNT TURBO
AN ATTACHMENT

4N-1890 HOUSING GP-FLYWHEEL

4N-1890 HOUSING GP-FLYWHEEL
Type 2
FOR USE WITH SAE NO. 1 FLYWHEEL HOUSING AND SINGLE REAR MOUNT TURBO
AN ATTACHMENT

4N-2931 HOUSING GP-FLYWHEEL

4N-2931 HOUSING GP-FLYWHEEL
S/N 60M1-1847

4N-2931 HOUSING GP-FLYWHEEL

4N-2931 HOUSING GP-FLYWHEEL
S/N 60M1848-5160

HOUSING GP-FRONT

1N-4607 COVER GP-FRONT HOUSING

1N-4607 COVER GP-FRONT HOUSING
S/N 60M1528-2882

1N-4607 COVER GP-FRONT HOUSING

1N-4607 COVER GP-FRONT HOUSING
S/N 60M2883-4740

1N-4607 COVER GP-FRONT HOUSING

1N-4607 COVER GP-FRONT HOUSING
S/N 60M4741-5160

4N-6798 COVER GP-FRONT HOUSING

4N-6798 COVER GP-FRONT HOUSING
S/N 60M1-2882

4N-6798 COVER GP-FRONT HOUSING

4N-6798 COVER GP-FRONT HOUSING
S/N 60M2883-5160

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M1-1679

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M1680-2407

4N-6341 GEAR GP-FRONT

4N-6341 GEAR GP-FRONT -TIMING
S/N 60M2408-5160

1W-0174 HOUSING GP-FRONT

1W-0174 HOUSING GP-FRONT
S/N 60M1528-2882

1W-0174 HOUSING GP-FRONT

1W-0174 HOUSING GP-FRONT
S/N 60M2883-5160

4N-5226 HOUSING GP-FRONT

4N-5226 HOUSING GP-FRONT
S/N 60M1-2882
TIMING GEAR

4N-5226 HOUSING GP-FRONT

4N-5226 HOUSING GP-FRONT
S/N 60M2883-5160
TIMING GEAR

LIFTING GP-ENGINE

7N-1748 LIFTING GP-ENGINE

7N-1748 LIFTING GP-ENGINE

MOUNTING GP-ALTERNATOR

1W-1806 MOUNTING GP-ALTERNATOR

1W-1806 MOUNTING GP-ALTERNATOR
S/N 60M1528-5160
24 VOLT, 60 AMPERE. REQUIRES 1200 RPM ENGINE OR CUSTOMER PROVIDED VOLTMETER OR AMMETER
Type 1
FOR USE WITH @@@@@ 8M-7892@@@@@, LOW SPEED ENGINES
AN ATTACHMENT

1W-1806 MOUNTING GP-ALTERNATOR

1W-1806 MOUNTING GP-ALTERNATOR
S/N 60M1528-5160
24 VOLT, 60 AMPERE. REQUIRES 1200 RPM ENGINE OR CUSTOMER PROVIDED VOLTMETER OR AMMETER
Type 2
FOR USE WITH @@@@@ 8M-7892@@@@@, LOW SPEED ENGINES
AN ATTACHMENT

4W-5579 MOUNTING GP-ALTERNATOR

4W-5579 MOUNTING GP-ALTERNATOR
FOR USE WITH @@@@@ 6T-1395@@@@@
AN ATTACHMENT

6N-2925 MOUNTING GP-ALTERNATOR

6N-2925 MOUNTING GP-ALTERNATOR
AN ATTACHMENT

6N-3526 MOUNTING GP-ALTERNATOR

6N-3526 MOUNTING GP-ALTERNATOR
FOR USE WITH OR WITHOUT FRONT PTO
AN ATTACHMENT

7N-9677 MOUNTING GP-ALTERNATOR

7N-9677 MOUNTING GP-ALTERNATOR
AN ATTACHMENT

7N-9678 MOUNTING GP-ALTERNATOR

7N-9678 MOUNTING GP-ALTERNATOR
AN ATTACHMENT

7W-4071 MOUNTING GP-ALTERNATOR

7W-4071 MOUNTING GP-ALTERNATOR
S/N 60M2515-5160
FOR USE WITH @@@@@ 6T-1395@@@@@
AN ATTACHMENT

7W-4072 MOUNTING GP-ALTERNATOR

7W-4072 MOUNTING GP-ALTERNATOR
S/N 60M2515-5160
FOR USE WITH @@@@@ 8M-7892@@@@@, CUSTOMER PROVIDED VOLTMETER OR AMMETER, 1500, 1800 OR 2100 RPM ENGINES
AN ATTACHMENT

8N-8000 MOUNTING GP-ALTERNATOR

8N-8000 MOUNTING GP-ALTERNATOR
S/N 60M1318-5160
Type 1
AN ATTACHMENT

8N-8000 MOUNTING GP-ALTERNATOR

8N-8000 MOUNTING GP-ALTERNATOR
S/N 60M1318-5160
Type 2
AN ATTACHMENT

8N-8001 MOUNTING GP-ALTERNATOR

8N-8001 MOUNTING GP-ALTERNATOR
S/N 60M1318-2514
FOR USAGE REFER TO CHART 7N-7314 CHART-ALTERNATOR
AN ATTACHMENT

MOUNTING GP-ENGINE

5N-2501 MOUNTING GP-SOUND ISOLATION

5N-2501 MOUNTING GP-SOUND ISOLATION
AN ATTACHMENT

4N-1029 SUPPORT GP-ENGINE

4N-1029 SUPPORT GP-ENGINE
S/N 60M1-1317

8N-7676 SUPPORT GP-ENGINE

8N-7676 SUPPORT GP-ENGINE
S/N 60M1-1775

8N-9338 SUPPORT GP-ENGINE

8N-9338 SUPPORT GP-ENGINE -FRONT
S/N 60M400-2514

8N-9338 SUPPORT GP-ENGINE

8N-9338 SUPPORT GP-ENGINE -FRONT
S/N 60M2515-5160

PAN GP-OIL

4N-7182 PAN GP-OIL

4N-7182 PAN GP-OIL -ENGINE

PARTS GP-MISCELLANEOUS

131-6602 KIT-ENGINE PARTS

131-6602 KIT-ENGINE PARTS
MARINE SOCIETY
CANNOT BE USED WITH ENGINES WITH DOUBLE WALL FUEL LINES OR FUEL DRAIN
AN ATTACHMENT

131-6603 KIT-ENGINE PARTS

131-6603 KIT-ENGINE PARTS
MARINE SOCIETY
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES OR FUEL DRAIN
AN ATTACHMENT

4P-9351 KIT-ENGINE PARTS

4P-9351 KIT-ENGINE PARTS -MARINE CLASSIFICATION SOCIETY
S/N 60M4401-5160
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES
AN ATTACHMENT

4P-9353 KIT-ENGINE PARTS

4P-9353 KIT-ENGINE PARTS -MARINE CLASSIFICATION SOCIETY
S/N 60M4401-5160
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES
AN ATTACHMENT

4P-9354 KIT-ENGINE PARTS

4P-9354 KIT-ENGINE PARTS
S/N 60M4401-5160
MARINE SOCIETY
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES
AN ATTACHMENT

4P-9355 KIT-ENGINE PARTS

4P-9355 KIT-ENGINE PARTS
S/N 60M4401-5160
MARINE SOCIETY
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES
AN ATTACHMENT

4P-9356 KIT-ENGINE PARTS

4P-9356 KIT-ENGINE PARTS
S/N 60M4401-5160
MARINE SOCIETY
FOR USE WITH ENGINES EQUIPPED WITH DOUBLE WALL FUEL LINES
AN ATTACHMENT

5N-1715 KIT-ENGINE PARTS

5N-1715 KIT-ENGINE PARTS
S/N 60M382-5160
FOR USE WITH PROPULSION ENGINE AT 1800 RPM
AN ATTACHMENT

5N-8530 KIT-ENGINE PARTS

5N-8530 KIT-ENGINE PARTS
MARINE SOCIETY
FOR USE WITH PROPULSION ENGINE AT 1200 RPM
AN ATTACHMENT

5N-9004 KIT-ENGINE PARTS

5N-9004 KIT-ENGINE PARTS
S/N 60M3778-5160
MARINE SOCIETY
FOR USE WITH PROPULSION ENGINE AT 2100 RPM
AN ATTACHMENT

5N-9578 KIT-ENGINE PARTS

5N-9578 KIT-ENGINE PARTS
MARINE SOCIETY
FOR USE WITH PROPULSION ENGINE AT 1800 RPM
AN ATTACHMENT

7C-3431 KIT-ENGINE PARTS

7C-3431 KIT-ENGINE PARTS
MARINE SOCIETY
FOR USE WITH PROPULSION ENGINE AT 2100 RPM
AN ATTACHMENT

PISTON & ROD GP

442-5359 KIT-CYLINDER PACK

2W-1513 PISTON & ROD GP

2W-1513 PISTON & ROD GP
S/N 60M1952-2019
14.5:1 RATIO

2W-9054 PISTON & ROD GP

2W-9054 PISTON & ROD GP
S/N 60M2089-4264
15.6:1 RATIO
FOR USE WITH @@@@@442-5359@@@@@

4N-1994 PISTON & ROD GP

4N-1994 PISTON & ROD GP
S/N 60M1-386

4P-1890 PISTON & ROD GP

4P-1890 PISTON & ROD GP
S/N 60M400-5160
14.3:1 RATIO
FOR USE WITH @@@@@442-5359@@@@@

7N-3517 PISTON & ROD GP

7N-3517 PISTON & ROD GP
S/N 60M387-1177

7N-3518 PISTON & ROD GP

7N-3518 PISTON & ROD GP
S/N 60M1178-1951; 60M2020-2088
15.6:1 RATIO

7W-7665 PISTON & ROD GP

7W-7665 PISTON & ROD GP
S/N 60M2457-3695
15.6:1 RATIO

8N-2443 PISTON & ROD GP

8N-2443 PISTON & ROD GP
S/N 60M1318-1914

2W-9053 PISTON GP

2W-9053 PISTON GP
S/N 60M2089-4264
PART OF 2W-9054 PISTON & ROD GP
FOR USE WITH @@@@@442-5359@@@@@

7W-7756 PISTON GP

7W-7756 PISTON GP
S/N 60M2457-3695
PART OF 7W-7665 PISTON & ROD GP

1W-8922 RING GP-PISTON

1W-8922 RING GP-PISTON
FIELD INSTALLATION

2W-1184 RING GP-PISTON

2W-1184 RING GP-PISTON
FOR AREAS WHICH MUST USE HIGH SULFUR FUELS
FIELD INSTALLATION

7C-8936 RING GP-PISTON

7C-8936 RING GP-PISTON
FIELD INSTALLATION

8N-0822 RING GP-PISTON

8N-0822 RING GP-PISTON
FIELD INSTALLATION

POWER TAKE-OFF GP

4W-9829 POWER TAKE-OFF GP

4W-9829 POWER TAKE-OFF GP
S/N 60M2373-5160
PROVIDES SPREAD BEARING SINGLE PLATE FRONT ENCLOSED CLUTCH
CANNOT BE USED WITH HYDRAULIC PUMP DRIVE ADAPTER OR 2100 RPM ENGINE
AN ATTACHMENT

4W-9830 POWER TAKE-OFF GP

4W-9830 POWER TAKE-OFF GP
S/N 60M2373-5160
CANNOT BE USED WITH HYDRAULIC PUMP DRIVE ADAPTER OR 2100 RPM ENGINE
AN ATTACHMENT

5N-6399 POWER TAKE-OFF GP

5N-6399 POWER TAKE-OFF GP
AN ATTACHMENT

5N-6400 POWER TAKE-OFF GP

5N-6400 POWER TAKE-OFF GP
AN ATTACHMENT

5N-7399 POWER TAKE-OFF GP

5N-7399 POWER TAKE-OFF GP
S/N 60M1-2372
AN ATTACHMENT

5N-7400 POWER TAKE-OFF GP

5N-7400 POWER TAKE-OFF GP
S/N 60M1-2372
2 PLATE CLUTCH
AN ATTACHMENT

6N-7938 POWER TAKE-OFF GP

6N-7938 POWER TAKE-OFF GP
AN ATTACHMENT

6N-7939 POWER TAKE-OFF GP

6N-7939 POWER TAKE-OFF GP
FRONT CLUTCH
AN ATTACHMENT

8L-6384 POWER TAKE-OFF GP

8L-6384 POWER TAKE-OFF GP
TWIN DISC
AN ATTACHMENT

5N-6439 SUPPORT GP-POWER TAKE-OFF

5N-6439 SUPPORT GP-POWER TAKE-OFF
FOR USE WITH @@@@@ 5N-7399@@@@@, @@@@@ 5N-7400@@@@@, CAT SPREAD BEARING PTO
AN ATTACHMENT

PULLEY GP

4N-2583 DAMPER & PULLEY GP

4N-2583 DAMPER & PULLEY GP

5N-5322 DAMPER & PULLEY GP

5N-5322 DAMPER & PULLEY GP
S/N 60M3887-5160
CANNOT BE USED WITH FRONT CRANKSHAFT MOUNTED ATTACHMENT

4N-6391 PULLEY GP-AUXILIARY DRIVE

4N-6391 PULLEY GP-AUXILIARY DRIVE
196MM (8 IN) DIAMETER PULLEY
AN ATTACHMENT

6N-4581 PULLEY GP-CRANKSHAFT

6N-4581 PULLEY GP-CRANKSHAFT
CANNOT BE USED WITH FRONT ENCLOSED CLUTCH
AN ATTACHMENT

SUPPRESSION GP-SOUND

5N-2501 MOUNTING GP-SOUND ISOLATION

5N-2501 MOUNTING GP-SOUND ISOLATION
AN ATTACHMENT

SERPENTINE/V-BELTS

1W-1630 GUARD GP-BELT

1W-1630 GUARD GP-BELT
DAMPER & ALTERNATOR
AN ATTACHMENT

6N-3541 GUARD GP-BELT

6N-3541 GUARD GP-BELT -DAMPER & ALTERNATOR
AN ATTACHMENT

5F-3581 V-BELT GP

5F-3581 V-BELT GP -FAN DRIVE
FOR USE WITH @@@@@ 6L-5856@@@@@
AN ATTACHMENT

VALVE MECHANISM GP

4N-9457 COVER GP-VALVE MECHANISM

4N-9457 COVER GP-VALVE MECHANISM
S/N 60M1-2572

4W-5388 COVER GP-VALVE MECHANISM

4W-5388 COVER GP-VALVE MECHANISM
S/N 60M400-3138
FOR USE WITH HEAT EXCHANGER COOLED ENGINES

4W-5388 COVER GP-VALVE MECHANISM

4W-5388 COVER GP-VALVE MECHANISM
S/N 60M3139-5160
FOR USE WITH HEAT EXCHANGER COOLED ENGINES

4N-1717 ROCKER ARM GP

4N-1717 ROCKER ARM GP
S/N 60M1-2498
PART OF 4N-7352 VALVE MECHANISM GP

4N-1717 ROCKER ARM GP

4N-1717 ROCKER ARM GP
S/N 60M2499-2548
PART OF 4N-7352 VALVE MECHANISM GP

7W-5926 ROCKER ARM GP

7W-5926 ROCKER ARM GP
S/N 60M400-5160
PART OF 4N-7352 VALVE MECHANISM GP

7W-5927 ROCKER ARM GP

7W-5927 ROCKER ARM GP
S/N 60M400-5160
PART OF 4N-7352 VALVE MECHANISM GP

4N-7352 VALVE MECHANISM GP

4N-7352 VALVE MECHANISM GP
S/N 60M1-2548

4N-7352 VALVE MECHANISM GP

4N-7352 VALVE MECHANISM GP
S/N 60M2549-5160

HOUSING GP-REAR

454-5379 KIT-REAR COVER GASKET

454-5379 KIT-REAR COVER GASKET
KIT CONTAINS GASKETS, SEALS, AND BENDABLE LOCKS TO REINSTALL THE REAR COVER. KIT DOES NOT INCLUDE OIL PAN GASKET.
PART OF 436-3145 KIT-ENGINE OVERHAUL

COVER GP-ENGINE

449-9116 KIT-FRONT COVER GASKET

449-9116 KIT-FRONT COVER GASKET
CONTAINS THE GASKETS, SEALS, & BENDABLE LOCKS TO REINSTALL THE FRONT COVER. THIS KIT DOES NOT INCLUDE THE OIL PAN GASKET
FIELD INSTALLATION

ENGINE OVERHAUL KIT

419-8233 KIT-ENGINE OVERHAUL

419-8233 KIT-ENGINE OVERHAUL
MAJOR OVERHAUL KIT
FIELD REPLACEMENT ORDER @@@@@436-3145@@@@@
FOR USE WITH @@@@@ 4W-3920@@@@@, @@@@@ 4N-2247@@@@@, @@@@@ 7W-7584@@@@@, @@@@@124-3400@@@@@, @@@@@ 1W-0733@@@@@, REHS7921
FIELD INSTALLATION

421-9722 KIT-ENGINE OVERHAUL

421-9722 KIT-ENGINE OVERHAUL
TOP END
FOR USE WITH @@@@@ 4W-3920@@@@@, @@@@@ 4N-2247@@@@@, @@@@@ 7W-7584@@@@@, @@@@@124-3400@@@@@, @@@@@ 1W-0733@@@@@, REHS7912
ALSO FIELD INSTALLATION

436-3145 KIT-ENGINE OVERHAUL

436-3145 KIT-ENGINE OVERHAUL -MARINE
REHS8155. RELEASE OF THE MAJOR OVERHAUL KIT FOR THE 3412C MARINE GENERATOR SET ENGINE. THIS KIT WAS CREATED TO REPLACE 419-8233 KIT
FIELD REPLACEMENT FOR @@@@@419-8233@@@@@
FOR USE WITH @@@@@ 7W-7584@@@@@, @@@@@124-3400@@@@@, @@@@@ 1W-0733@@@@@, @@@@@ 4W-3920@@@@@, @@@@@ 4N-2247@@@@@, REHS 8157
ALSO FIELD INSTALLATION

460-9351 KIT-ENGINE OVERHAUL

460-9351 KIT-ENGINE OVERHAUL -MAJOR REPAIR
FOR USE WITH REHS6544, ELECTRIC POWER ENGINE
FIELD INSTALLATION

460-9353 KIT-ENGINE OVERHAUL

460-9353 KIT-ENGINE OVERHAUL -TOP END
FOR USE WITH REHS6534, ELECTRIC POWER ENGINE
FIELD INSTALLATION

Information:

(For parts list, see above)

BASIC ENGINE

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

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

Special Instruction

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

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

BELT TIGHTENER GP

Specifications

V-Belt Tension Chart
3412 INDUSTRIAL AND MARINE ENGINES

Belt Tension Chart
3408C and 3412C 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
3412 INDUSTRIAL AND MARINE ENGINES

Camshaft
3408C and 3412C Marine Engines

Camshaft Bearings
3408C and 3412C 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 MARINE ENGINES

Camshaft Bearings
3408C & 3412C MARINE 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

The FT1486 Chain Assembly Can Be Used For Emergency Repair Of Front Power Takeoff Clutches
1979/10/31

New Linkage Kits With Improved Parts Are Available For Repair Of Front Power Takeoff Clutches
1980/01/09

New Clutch Groups Used In Front Power Take-Offs; Service Kits Available
1977/09/07

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

Service Letter-NACD

Remove All 1K2811 Collar Assemblies Without The "F" Identifier Casted On The Part
Remove All 1K2811 Collar Assemblies Without The "F" Identifier Casted On The Part

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Service Letter-Brazil

Service Letter-Truck/Ag/Marine

Specifications

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

Service Letter-China

Remove All 1K2811 Collar Assemblies Without The "F" Identifier Casted On The Part
Remove All 1K2811 Collar Assemblies Without The "F" Identifier Casted On The Part

Service Letter-Asia

Service Letter-APD

Service Magazine

New Clutch Groups Used In Front Power Take-Offs; Service Kits Available{3055}
1977/08/29

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

The FT1486 Chain Assembly Can Be Used For Emergency Repair Of Front Power Takeoff Clutches {3055}
1979/10/29

New Linkage Kits With Improved Parts Are Available For Repair Of Front Power Takeoff Clutches{3055,3059}
1979/12/24

COUPLING GP

Engine News

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

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

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

Double Lip Crankshaft Seal Helps Stop Oil Leakage
1983/05/25

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

Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program
1986/07/01

Caterpillar Crankshaft Heat Code Locations
1986/11/01

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

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

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

A New Crankshaft Seal Is Available {1160, 1202}
2003/03/01

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

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

Specifications

Connecting Rod And Main Bearing Journals
3412 INDUSTRIAL AND MARINE ENGINES

Crankshaft
3412 INDUSTRIAL AND MARINE ENGINES

Connecting Rod and Main Bearing Journals
3408C and 3412C Marine Engines

Crankshaft
3408C and 3412C Marine Engines

Tool Operating Manual

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

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 MARINE ENGINES

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

Crankshaft Main Bearings
3408C & 3412C MARINE ENGINES

Crankshaft
3408C & 3412C MARINE 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

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

Double Lip Crankshaft Seal Helps Stop Oil Leakage{1161,3300}
1983/05/23

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

Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program{1202}
1986/06/23

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

Caterpillar Crankshaft Heat Code Locations{1202}
1986/10/20

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

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

Remanufactured 3412 Crankshafts {1202}
2000/01/24

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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing
1981/03/04

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

Cylinder Kits Not Recommended For Use In 3400 Family of Marine Engines
1991/05/01

New Cylinder Kits Available
1992/04/01

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

Water Cooled Turbine Housings May Require Larger Core Plugs{1065,1050}
1994/11/01

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 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

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

Specifications

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

Cylinder Liner
3408C and 3412C Marine Engines

Cylinder Liner Projection
3408C and 3412C Marine Engines

Cylinder Block
3408C and 3412C 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}

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}

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

Camshaft Bearings
3408C & 3412C MARINE ENGINES

Spacer Plates
3408C & 3412C MARINE ENGINES

Piston Cooling Tubes
3408C & 3412C MARINE ENGINES

Cylinder Liners
3408C & 3412C MARINE ENGINES

Crankshaft Main Bearings
3408C & 3412C MARINE 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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing{1201}
1981/02/23

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

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

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

Cylinder Kits Not Recommended For Use In 3400 Family of Marine Engines And D8N Tractors{1214}
1991/05/20

New Cylinder Kits Available{1213}
1992/04/13

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

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

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

Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems {1105}
1994/09/01

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

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

Special Instruction

3400 Cylinder Head To Block Joint Repair Procedure{1124}
3400 Cylinder Head To Block Joint Repair Procedure{1124}

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

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

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

Cylinder Heads
3412 INDUSTRIAL AND MARINE ENGINES

Cylinder Head Valves
3408C and 3412C Marine Engines

Cylinder Head
3408C and 3412C Marine Engines

Tool Operating Manual

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

{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

Glow Plugs (Precombustion Chambers)
3408C & 3412C MARINE ENGINES

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

Precombustion Chambers
3408C & 3412C MARINE ENGINES

Direct Injection Adapters
3408C & 3412C MARINE ENGINES

Cylinder Head Assemblies
3408C & 3412C MARINE ENGINES

Valves
3408C & 3412C MARINE ENGINES

Valve Seat Inserts
3408C & 3412C MARINE ENGINES

Valve Guides
3408C & 3412C MARINE ENGINES

Bridge Dowels
3408C & 3412C MARINE 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

Change To Interval For Valve Lash Adjustment{1103,1105,1123}
1987/02/16

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

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

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

Specifications

Vibration Damper And Pulley
3412 INDUSTRIAL AND MARINE ENGINES

Vibration Damper and Pulley
3408C and 3412C Marine Engines

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}

Disassembly and Assembly

Vibration Damper & Pulley
3408C & 3412C MARINE 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

DRIVE GP-ACCESSORY

Engine News

New 1N3270 Auxiliary Drive Group Available As Attachment
1980/04/30

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

Specifications

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

Auxiliary Drives
3412 INDUSTRIAL & MARINE ENGINE ATTACHMENTS

Disassembly and Assembly

Front Housing Cover
3408C & 3412C MARINE ENGINES

Front Housing
3408C & 3412C MARINE ENGINES

Service Magazine

New 1N3270 Auxiliary Drive Group Available As Attachment{1165}
1980/04/28

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

DRIVE GP-AUXILIARY

Engine News

New 1N3270 Auxiliary Drive Group Available As Attachment
1980/04/30

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

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

Auxiliary Drives
3412 INDUSTRIAL & MARINE ENGINE ATTACHMENTS

Auxiliary Drive Pulley
3408C and 3412C Marine Engines

Service Magazine

New 1N3270 Auxiliary Drive Group Available As Attachment{1165}
1980/04/28

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

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

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-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) (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

Governor & Fuel Pump Drive
3408C & 3412C MARINE 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

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

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}

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}

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}

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

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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing
1981/03/04

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

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts
1987/03/01

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

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

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

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

Flywheel
3408C and 3412C Marine Engines

Flywheel Housing
3408C and 3412C 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 MARINE ENGINES

Flywheel Housing
3408C & 3412C MARINE ENGINES

Flywheel
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Industrial Engine)
3412 INDUSTRIAL & MARINE ENGINES

Flywheel Housing (Marine Engine)
3412 INDUSTRIAL & MARINE ENGINES

Service Magazine

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing{1201}
1981/02/23

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

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

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16

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

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket{1157,1307}
1992/09/21

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

A 117-9712 Drive Idler Shaft Must be Used {1151, 1162, 1206}
2006/04/24

A New Drive Idler Shaft Must be Used on Some 3408 and 3412 Engines {1151, 1162, 1206}
2009/10/23

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

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

Gear Group (Rear)
3408C and 3412C Marine Engines

Gear Group (Front)
3408C and 3412C 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

Front Housing Cover
3408C & 3412C MARINE ENGINES

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

Front Housing
3408C & 3412C MARINE ENGINES

Timing Gears
3408C & 3412C MARINE 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

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

HOUSING GP-FLYWHEEL

Engine News

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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing
1981/03/04

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

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

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 (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 Housing
3408C and 3412C 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 MARINE ENGINES

Flywheel Housing
3408C & 3412C MARINE 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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing{1201}
1981/02/23

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

Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03

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

New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket{1157,1307}
1992/09/21

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

A 117-9712 Drive Idler Shaft Must be Used {1151, 1162, 1206}
2006/04/24

A New Front and Rear Cover Seal Is Available for Certain 3400 Series Industrial Engines {1151, 1157, 7555}
2013/03/29

Specifications

Timing Gear Housing
3412 INDUSTRIAL AND MARINE ENGINES

Housing (Front)
3408C and 3412C 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

Front Housing Cover
3408C & 3412C MARINE ENGINES

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

Front Housing
3408C & 3412C MARINE ENGINES

Timing Gears
3408C & 3412C MARINE 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

LIFTING GP-ENGINE

Engine News

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

Disassembly and Assembly

Engine Lifting Brackets
3408C & 3412C MARINE ENGINES

MISCELLANEOUS INFORMATION

Engine News

Maintenance Procedures For Extended FPTO Life On 3408 And 3412 Marine Engines
1979/03/14

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

Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For The Power Takeoff
1979/07/04

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

The FT1486 Chain Assembly Can Be Used For Emergency Repair Of Front Power Takeoff Clutches
1979/10/31

New Linkage Kits With Improved Parts Are Available For Repair Of Front Power Takeoff Clutches
1980/01/09

New 1N3270 Auxiliary Drive Group Available As Attachment
1980/04/30

Different Vibration Damper Now Used
1980/04/30

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

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

Two New Front Power Take-Off Groups Are Available
1980/08/13

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

Reference List Of Pistons Used With The Different Types Of Connecting Rods
1980/09/10

Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed
1980/11/12

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

New Piston Pin Retainer Used
1982/02/10

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

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

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

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

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

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

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

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

New Cylinder Liners
1977/01/28

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

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

New 1N3270 Auxiliary Drive Group Available As Attachment{1165}
1980/04/28

Two New Front Power Take-Off Groups Are Available{3055}
1980/07/14

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

Pipe Plug Added To Rear Of Cylinder Block Prevents Oil Leakage Into Flywheel Housing{1201}
1981/02/23

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 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

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

New Bolt Used In Front Engine Support{1154}
1983/03/21

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

Double Lip Crankshaft Seal Helps Stop Oil Leakage{1161,3300}
1983/05/23

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

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

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

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

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

New Cylinder Liners{1216}
1977/01/24

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

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

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

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

New Piston Pin Bearing Used In Connecting Rod Assembly{1218}
1977/04/25

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

Correct Adjustment Of Fuel Shut-Off Solenoid Shaft Can Prevent Failures{1259}
1977/08/08

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

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

Stronger Piston Is Used; Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1977/09/19

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

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

Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16

Improved High Idle Display Of The 6V3100 And 8T5300/8T5301 Engine Timing Indicator Groups{0781}
1987/03/16

The Caterpillar Fuel Flow Monitor System Available {0782,1000,1250}
1987/05/11

Recommendations For Reusability Of Pistons With Crater Rim Cracks{1214}
1987/06/29

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 Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks{1162,1166}
1987/09/21

Microfiche For Replacement Engine Bills Of Material {0374,1000}
1987/10/26

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

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

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

Change In Design Of Engine Governor, Fuel Injection And Transfer Pump Groups, And Fuel Ratio Control Groups{1264,1278,1286}
1978/01/23

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

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

Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1978/03/06

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

Use 6V100 Tool Arrangement To Remove And Install Piston Pin Bearings For Both Tapered And Standard Connecting Rods{0620,1218}
1978/04/24

Explanation Of Nomenclature Used In Engine Performance{1000,0374}
1978/05/15

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

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

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

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

New Recommendations For Bearing Lubrication And Adjustment{3055}
1988/08/08

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

New 6V87 Gauge Measures Valve Stem Wear{0653,1105}
1979/01/08

Current Chart For Dynamometer Adapters{0651,1000}
1979/01/22

5P3519 Piston Ring Gauge Has Improved Design For Better Accuracy And Easier Use; Corrected Information For Use On Pistons That Have Two Ring Grooves{0653,1214}
1979/05/14

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

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

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

Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}
1979/09/24

Wider Connecting Rods Have More Bearing Area{1214,1218}
1979/11/05

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

New Linkage Kits With Improved Parts Are Available For Repair Of Front Power Takeoff Clutches{3055,3059}
1979/12/24

Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24

New Oil Change Recommendations For Severe Applications{0374,1302}
1989/08/14

New Connecting Rod Bearing Used{0372,1203,1219}
1989/08/21

Engine Coolant Can Be Recycled{1395}
1989/11/13

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