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7N5692 CYLINDER HEAD ASSEMBLY Serial No. 97N457-Up Provides Field Replacement for 2N5510 Head Assembly shown on Page 20D NOTE: 12-7N5693 Exhaust Valve also required G343




BASIC ENGINE

CYLINDER HEAD GP
 

#UEG0250S0040
 

7N-5692: HEAD AS

7N5692 CYLINDER HEAD ASSEMBLY
Serial No. 97N457-Up
Provides Field Replacement for 2N5510 Head Assembly shown on Page 20D
NOTE: 12-7N5693 Exhaust Valve also required
c165843 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9F-2247 [1] PLUG  
2. 5M-6214 [2] PLUG  
3. 3B-0623 [11] PLUG  
4. 3B-0622 [1] PLUG  
5. 6N-2236 [24] GUIDE  
6. 9M-3205 [12] INSERT (intake)  
7. 7L-0843 [12] INSERT (exhaust)  
8. 2M-6471 [13] PLUG  
 

#UEG0250S0041
 

8L-9328: CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS (8L9328 N/S)--Side View--Part 1 of 2
Serial No. 97N1 to 97N239 inclusive
Cylinder Block Assembly parts are shown on Page 24
See Page 26 for Gasket Kits
c110299 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6H-0192 [6] STUD (1.3125" LONG)  
    (PART OF PLATE ASSEM. 1N5042)
  1N-5042 [1] PLATE ASSEM.  
  1A-2029 [1] BOLT  
  3B-4506 [2] LOCKWASHER  
  3S-5496 [1] SEAL  
  2M-7731 [3] STUD (2.20" LONG)  
  4D-0537 [2] DOWEL  
    (PARTS OF PLATE ASSEM. 1N5042)
  0L-1351 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  6H-0192 [12] STUD (1.3125" LONG)  
    (PART OF PLATE ASSEM. 1N5042)
  7B-7770 [1] COVER  
  1A-2024 [1] GASKET  
  0T-0199 [1] PLUG  
  0L-2070 [1] BOLT  
  1A-2029 [11] BOLT  
  3B-4506 [11] LOCKWASHER  
  8H-9872 [1] POINTER  
  0L-1351 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  4L-9969 [1] COVER  
  4L-9968 [1] GASKET  
  2N-3213 [1] GASKET  
  9S-8695 [1] GASKET  
  3J-5389 [1] PLUG  
  6L-1872 [1] COVER ASSEM.  
  9M-3210 [1] GASKET  
  4M-0078 [1] GASKET  
  4M-0073 [1] PLATE ASSEM.  
  0L-1351 [23] BOLT  
  3B-4506 [23] LOCKWASHER  
  5H-2830 [1] COVER  
  4H-5952 [1] GASKET  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  6L-3035 [1] ADAPTER  
  1S-8976 [1] GASKET  
  5M-6213 [1] PLUG  
  0S-1594 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
  0S-1590 [4] BOLT  
  3B-4506 [10] LOCKWASHER  
  2M-9194 [1] PAN  
  2M-9222 [1] GASKET  
  8S-9984 [1] PLATE ASSEM.  
  8S-9988 [1] GASKET  
  Y [1] BLOCK ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  4K-8603 [1] PLUG  
  5S-3772 [6] LINER  
  3S-3978 [18] SEAL  
  5M-9621 [2] STUD  
    (PART OF COVER ASSEM. 6L1872)
  1A-2029 [12] BOLT  
  3B-4506 [24] LOCKWASHER  
  9S-0746 [1] GASKET  
  0S-1571 [2] BOLT  
  1N-9950 [1] SUPPORT  
  0L-1143 [6] BOLT  
  8M-8800 [1] BAFFLE ASSEM.  
  2M-9222 [1] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#UEG0250S0042
 

8L-9328: CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS (8L9328 N/S)--End View--Part 2 of 2
Serial No. 97N1 to 97N239 inclusive
c110300 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2A-3798 [1] DOWEL  
    (PART OF 1N5020 ASSEM.)
  0S-1608 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  1A-7669 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  3H-7654 [1] WASHER  
  7B-9665 [1] PLUG  
  0S-1594 [1] BOLT  
  5H-3204 [1] LOCK  
  7M-4844 [1] LOCK  
  0S-1595 [2] BOLT  
  0S-1595 [2] BOLT  
  7M-4844 [1] LOCK  
  5M-6213 [1] PLUG  
  0S-1595 [1] BOLT  
  2B-1738 [1] LOCK  
  0S-1595 [2] BOLT  
  3H-4119 [1] LOCK  
  8S-9191 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  1N-5020 [1] HOUSING ASSEM.  
  2B-7457 [1] PLUG  
  5S-8543 [1] BEARING  
    (PART OF 1N5020 ASSEM.)
  8S-9089 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  0S-1594 [2] BOLT  
  7M-4843 [1] LOCK  
  3J-5390 [1] PLUG  
  0S-1573 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  0S-1573 [1] BOLT  
  7M-7205 [1] LOCK  
  0L-0827 [1] PLUG  
  0L-1124 [1] GASKET  
 

#UEG0250S0043
 

8L-9328: CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS (8L9328 N/S)--Side View--Part 1 of 2
Serial No. 97N240-Up
Cylinder Block Assembly parts are shown on Page 24
See Page 26 for Gasket Kits
c147922 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6H-0192 [6] STUD (1.3125" LONG)  
    (PART OF PLATE ASSEM. 1N5042)
  1N-5042 [1] PLATE ASSEM.  
  1A-2029 [1] BOLT  
  3B-4506 [2] LOCKWASHER  
  3S-5496 [1] SEAL  
  2M-7731 [3] STUD (2.20" LONG)  
  4D-0537 [2] DOWEL  
    (PARTS OF PLATE ASSEM. 1N5042)
  0L-1351 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  6H-0192 [12] STUD (1.3125" LONG)  
    (PART OF PLATE ASSEM. 1N5042)
  7B-7770 [1] COVER  
  1A-2024 [1] GASKET  
  0T-0199 [1] PLUG  
  0L-2070 [1] BOLT  
  1A-2029 [11] BOLT  
  3B-4506 [11] LOCKWASHER  
  8H-9872 [1] POINTER  
  0L-1351 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  4L-9969 [1] COVER  
  4L-9968 [1] GASKET  
  2N-3213 [1] GASKET  
  9S-8695 [1] GASKET  
  3J-5389 [1] PLUG  
  6L-1872 [1] COVER ASSEM.  
  9M-3210 [1] GASKET  
  4M-0078 [1] GASKET  
  5S-2909 C [1] PLATE ASSEM.  
  9L-5854 C [6] BAND  
  3S-5496 [1] SEAL  
  0L-1351 [23] BOLT  
  3B-4506 [23] LOCKWASHER  
  5H-2830 [1] COVER  
  4H-5952 [1] GASKET  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  6L-3035 [1] ADAPTER  
  1S-8976 [1] GASKET  
  5M-6213 [1] PLUG  
  0L-1351 C [11] BOLT  
  3B-4506 C [11] LOCKWASHER  
  0S-1590 [4] BOLT  
  3B-4506 [10] LOCKWASHER  
  2M-9194 [1] PAN  
  2M-9222 [1] GASKET  
  2P-1215 C [1] PLATE ASSEM.  
  8S-9988 [1] GASKET  
  Y [1] BLOCK ASSEM.  
    (SEPARATE ILLUSTRATION)
  4K-8603 [1] PLUG  
  5S-3772 [6] LINER  
  5P-2425 C [6] SEAL  
  3F-0957 C [1] DOWEL  
    (PART OF 2P1215 ASSEM.)
  3S-3978 C [12] SEAL  
  5M-9621 [2] STUD  
    (PART OF COVER ASSEM. 6L1872)
  1A-2029 [12] BOLT  
  3B-4506 [24] LOCKWASHER  
  9S-0746 [1] GASKET  
  0S-1571 [2] BOLT  
  1N-9950 [1] SUPPORT  
  0S-1594 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  0L-1143 [6] BOLT  
  8M-8800 [1] BAFFLE ASSEM.  
  2M-9222 [1] GASKET  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0250S0044
 

8L-9328: CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS (8L9328 N/S)--End View--Part 2 of 2
Serial No. 97N240-Up
c147923 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2A-3798 [1] DOWEL  
    (PART OF 1N5020 ASSEM.)
  0S-1608 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  1A-7669 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  3H-7654 [1] WASHER  
  3B-0551 C [2] PLUG  
    (PART OF 1N5020 ASSEM.)
  7B-9665 [1] PLUG  
  0S-1594 [1] BOLT  
  5H-3204 [1] LOCK  
  7M-4844 [1] LOCK  
  0S-1595 [2] BOLT  
  0S-1595 [2] BOLT  
  7M-4844 [1] LOCK  
  5M-6213 [1] PLUG  
  0S-1595 [1] BOLT  
  2B-1738 [1] LOCK  
  0S-1595 [2] BOLT  
  3H-4119 [1] LOCK  
  8S-9191 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  1N-5020 [1] HOUSING ASSEM.  
  2B-7457 [1] PLUG  
  5S-8543 [1] BEARING  
    (PART OF 1N5020 ASSEM.)
  8S-9089 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  0S-1594 [2] BOLT  
  7M-4843 [1] LOCK  
  3J-5390 [1] PLUG  
  0S-1573 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  0S-1573 [1] BOLT  
  7M-7205 [1] LOCK  
  0L-0827 [1] PLUG  
  0L-1124 [1] GASKET  
  C   INDICATES CHANGE
 

#UEG0250S0045
 

CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY
Part of Cylinder Block and Covers shown on Page 22
Note: For field replacement order 9S6169 Service Block Group
c110473 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-1719 [6] STUD  
  9F-2247 [4] PLUG  
  7H-3171 [2] PLUG  
  1A-3284 [1] DOWEL (1.375" LONG)  
  7S-3580 [1] DOWEL (1.25" LONG)  
  1S-9292 [2] DOWEL  
  2F-4547 [6] DOWEL  
  5M-6213 [1] PLUG  
  8S-9987 [1] SHAFT ASSEM.  
  8M-1063 [1] DOWEL  
    (PART OF SHAFT ASSEM. 9S9987)
  5M-6214 [3] PLUG  
  2M-4032 [6] CAP  
  5B-5812 [1] DOWEL  
  4M-5601 [1] CAP  
  1P-0011 [1] BEARING  
  0L-2288 [1] PLUG  
  9S-1343 [2] PLUG  
  2A-3798 [1] DOWEL  
  2M-8976 [1] TUBE  
  6B-6162 [14] NUT  
  6H-5800 [14] COTTER PIN  
  1M-8395 [14] STUD  
  0L-1521 [1] PLUG  
  4B-9782 [1] BALL  
  8M-0924 [6] ORIFICE  
  3F-0957 [1] DOWEL  
  9S-1343 [1] PLUG (CORE)  
  2A-3798 [2] DOWEL  
  3B-0551 [1] PLUG (PIPE)  
 

#UEG0250S0046
 

8L-4429: CRANKSHAFT AND DAMPER

CRANKSHAFT AND DAMPER (8L4429 N/S)
Serial No. 97N1 to 97N238 inclusive
c126114 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  9S-3012 C [1] CRANKSHAFT ASSEM.  
  2A-3576 [1] DOWEL  
  9S-3013 [1] GEAR (60 TEETH)  
    (PARTS OF 9S3012 ASSEM.)
  7M-0994 [1] BEARING ASSEM. (REAR)  
  5S-3903 C [1] SEAL  
  8S-1384 [1] GASKET  
  5S-3899 C [1] BAFFLE  
  0L-1351 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4M-9298 [6] RING  
  9S-1343 [6] PLUG  
    (PARTS OF 9S3012 ASSEM.)
  4M-2919 [6] BEARING ASSEM. (INTERMEDIATE)  
  4M-9086 [1] DAMPER  
  4L-6729 [6] LOCK  
  6H-1717 [12] BOLT  
  2S-1509 [1] SEAL  
  4L-3017 [1] PULLEY  
  4L-3018 [1] PLATE  
  1A-1135 [2] BOLT  
  5M-4060 [1] LOCK  
  C   INDICATES CHANGE FROM PREVIOUS
 

#UEG0250S0047
 

3N-2103: CRANKSHAFT AND DAMPER

CRANKSHAFT AND DAMPER (3N2103 N/S)
Serial No. 97N239 to 97N296 inclusive
c135877 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3N-2101 [1] CRANKSHAFT ASSEM.  
  2A-3576 [1] DOWEL  
  9S-3013 [1] GEAR (60 TEETH)  
    (PARTS OF 3N2101 ASSEM.)
  7M-0994 [1] BEARING ASSEM. (REAR)  
  5S-3903 [1] SEAL  
  8S-1384 [1] GASKET  
  5S-3899 [1] BAFFLE  
  0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4M-9298 [6] RING  
  3N-2100 [6] PLUG  
    (PARTS OF 3N2101 ASSEM.)
  4M-2919 [6] BEARING ASSEM. (INTERMEDIATE)  
  4M-9086 [1] DAMPER  
  4L-6729 [6] LOCK  
  6H-1717 [12] BOLT  
  2S-1509 [1] SEAL  
  4L-3017 [1] PULLEY  
  4L-3018 [1] PLATE  
  1A-1135 [2] BOLT  
  5M-4060 [1] LOCK  
 

#UEG0250S0048
 

8L-4429: CRANKSHAFT AND DAMPER GROUP

8L4429 CRANKSHAFT AND DAMPER GROUP
Serial No. 97N297 to 97N552 inclusive
c145761 UEG0250S
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Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2P-3839 RC [1] CRANKSHAFT ASSEM.  
  2A-3576 [1] DOWEL  
  9S-3013 [1] GEAR (60 Teeth)  
    (Parts of 2P3839 Assem.)
  7M-0994 [1] BEARING ASSEM. (Rear)  
  5S-3903 [1] SEAL  
  8S-1384 [1] GASKET  
  5S-3899 [1] BAFFLE  
  0S-1594 C [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4M-2919 [6] BEARING ASSEM. (INTERMEDIATE)  
  9S-4444 C [1] DAMPER ASSEM.  
  6H-1717 C [6] BOLT  
  3H-7654 C [6] WASHER  
  2S-1509 [1] SEAL  
  4L-3017 [1] PULLEY  
  4L-3018 [1] PLATE  
  1A-1135 [2] BOLT  
  5M-4060 [1] LOCK  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0250S0049
 

8L-4429: CRANKSHAFT AND DAMPER GROUP

8L4429 CRANKSHAFT AND DAMPER GROUP
Serial No. 97N553 to 97N559 inclusive
c214144 UEG0250S
  For full view, you need register

Parts for your G343 GAS ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2P-3839 R [1] CRANKSHAFT ASSEM.  
  2A-3576 [1] DOWEL  
  9S-3013 [1] GEAR (60 Teeth)  
    (Parts of 2P3839 Assem.)
  6N-8758 C [1] BEARING (rear)  
  5S-3903 [1] SEAL  
  8S-1384 [1] GASKET  
  5S-3899 [1] BAFFLE  
  0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  6N-8759 C [6] BEARING ASSEM. (INTERMEDIATE)  
  9S-4444 [1] DAMPER ASSEM.  
  6H-1717 [6] BOLT  
  3H-7654 [6] WASHER  
  9N-2539 C [1] SEAL  
  9J-0110 C [2] SLEEVE  
  4L-3017 [1] PULLEY  
  4L-3018 [1] PLATE  
  1A-1135 [2] BOLT  
  5M-4060 [1] LOCK  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

Information:

Engine News
Special Instruction
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}
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}
Technical Information Bulletin
Lubricant For Gas Engines
Lubricant For Gas Engines
Specifications
Valves
G343 ENGINE
Cylinder Head
G343 ENGINE
Tool Operating Manual
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
{0374, 0599, 0629, 0632, 0700, 0701, 1100, 1101}
Reuse And Salvage Guidelines
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Applied Failure Analysis
Information Release Memo
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Disassembly and Assembly
Cylinder Head
G343 ENGINE
Service Magazine

Caterpillar Parts SIS Catalog G343 :

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