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120-8668 HOUSING GP-FLYWHEEL ALSO AN ATTACHMENT 3412D MARINE ENGINE


BASIC ENGINE
HOUSING GP-FLYWHEEL
GEAR GP
CYLINDER HEAD GP
ENGINE ARRANGEMENT
ENGINE AR
SERVICE EQUIPMENT AND SUPPLIES
KIT-REBUILD

MARINE ENGINE 3412D MARINE ENGINE REA
 3412D Marine Engine REA00001-UP SEBP3998 3412D REA   (2003)

BASIC ENGINE

HOUSING GP-FLYWHEEL
COVER GP-FLYWHEEL HOUSING
121-2014 COVER GP-FLYWHEEL HOUSING
COVER GP-FLYWHEEL HOUSING
4N-7798 COVER GP-FLYWHEEL HOUSING
HOUSING GP-FLYWHEEL
120-8668 HOUSING GP-FLYWHEEL
 

#SEBP39980040
 

120-8668: HOUSING GP-FLYWHEEL

120-8668 HOUSING GP-FLYWHEEL
ALSO AN ATTACHMENT
i00477333 SEBP3998
1208668 HOUSING GP-FLYWHEEL Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 120-8669 [1] HOUSING-FLYWHEEL  
2. 0L-1351 [4] BOLT (3/8-16X0.875-IN)(LOCATION Z)  
3. 0T-0573 [4] BOLT (3/8-16X2.75-IN)(LOCATION Y)  
4. 1C-2251 [4] BOLT (3/8-16X1.87-IN)(LOCATION X)  
5. 5F-0304 [5] PLUG (FLYWHEEL HOUSING)  
5A. 2A-1162 B [5] GASKET  
6. 5L-4398 [8] BOLT (1/2-13X2.25-IN)  
7. 7X-7731 [1] PLUG-PIPE (3/4-14-THD)  
8. 8T-6763 [2] PLUG-PIPE (1/4-18-THD)  
9. 161-7293 [1] GASKET-CYLINDER  
10. 7X-7730 [1] PLUG-PIPE  
11. 8T-6761 [1] PLUG-PIPE (1-11-1/2 NPT THD)  
  B   USE AS REQUIRED
 

#SEBP39980041
 

4N-5226: HOUSING GP-FRONT

4N-5226 HOUSING GP-FRONT
TIMING GEAR
ALSO AN ATTACHMENT
i00107925 SEBP3998
4N5226 HOUSING GP-FRONT Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 166-9145 C [1] GASKET-CYLINDER BLOCK  
2. 172-9314 C [1] HOUSING-TIMING GEAR  
3. 3K-3256 [2] STUD-TAPERLOCK (3/8-16X1.7-IN)  
4. 2K-4973 [1] LOCKNUT (3/8-16-THD)  
5. 0L-1352 [2] BOLT (3/8-16X3.25-IN)  
6. 5M-2894 C [6] WASHER-HARD (10.2X18.5X2.5-MM THK)  
7. 0L-1143 [3] BOLT (3/8-16X2.5-IN)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP39980042
 

420-4502: KIT-CYLINDER HEAD GASKET

420-4502 KIT-CYLINDER HEAD GASKET
CONTAINS THE GASKETS, SEALS, & BENDABLE LOCKS TO REBUILD & REINSTALL A SINGLE CYLINDER HEAD. KIT INCLUDES THE TURBO GASKETS, BUT DOES NOT INCLUDE THE FUEL INJECTOR SEALS. ORDER A SINGLE INJECTOR SEAL KIT, AS NEEDED
PART OF 419-8235 KIT-ENGINE OVERHAUL
FIELD REPLACEMENT ORDER @@@@@556-8659@@@@@
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@
FIELD INSTALLATION
i05214150 SEBP3998
4204502 KIT-CYLINDER HEAD GASKET Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0933 [1] GASKET  
2. 4N-1684 [1] GASKET  
3. 4N-4307 [1] GASKET  
4. 7C-0307 [4] GASKET (REGULATOR HOUSING, OUTLET)  
5. 7M-7273 [1] GASKET (TURBOCHARGER)  
6. 4N-7253 [6] GASKET-CHAMBER  
7. 225-3099 [1] GASKET-CYLINDER HEAD  
8. 129-9452 [6] GASKET-EXHAUST MANIFOLD  
9. 225-3101 [1] GASKET-PLATE  
10. 359-1439 [24] SEAL AS-WATER  
11. 5P-5678 D SEAL (7-M)  
12. 229-5332 [2] SEAL  
13. 126-2702 [1] SEAL-INTEGRAL  
14. 198-6068 [1] SEAL-INTEGRAL  
15. 3S-9643 [1] SEAL-LIP TYPE (WATER TEMPERATURE REGULATOR)  
16. 1J-9671 [1] SEAL-O-RING  
17. 5P-8119 [6] SEAL-O-RING  
18. 5P-8356 [2] SEAL-O-RING  
19. 6V-3831 [1] SEAL-O-RING  
20. 6V-3917 [4] SEAL-O-RING  
21. 7J-2036 [4] SEAL-O-RING  
22. 7L-4774 [6] SEAL-O-RING  
23. 8L-2779 [6] SEAL-O-RING  
24. 109-0076 [6] SEAL-O-RING  
25. 109-0078 [5] SEAL-O-RING  
26. 112-3258 [2] SEAL-O-RING  
27. 112-3540 [2] SEAL-O-RING  
28. 214-7568 [1] SEAL-O-RING  
29. 272-2583 [3] SEAL-O-RING  
30. 4N-6295 [1] SLEEVE-RETURN  
31. 8H-9204 [6] WASHER-FELT (19/32X7/8X5/16-IN THK)  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD IN ADDITION TO THE KIT CONSIST, PLEASE VISIT:
   
    HTTPS://DEALER.CAT.COM/RELATED
  D   ORDER BY THE METER
 

#SEBP39980043
 

420-4866: KIT-ENGINE GASKET

420-4866 KIT-ENGINE GASKET
CONTAINS GASKETS, SEALS, & BENDABLE LOCKS TO REINSTALL THE REAR COVER. THIS KIT DOES NOT INCLUDE THE OIL PAN GASKET
PART OF 419-8235, 436-1748 KIT-ENGINE OVERHAUL
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@
ALSO AN ATTACHMENT AND FIELD INSTALLATION
i05214224 SEBP3998
4204866 KIT-ENGINE GASKET Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2A-1162 [5] GASKET (DRAIN PLUG)  
2. 2M-5446 [1] GASKET  
3. 198-1517 [2] GASKET  
4. 9L-6924 [1] GASKET  
5. 9Y-6089 [1] GASKET  
6. 226-4753 [2] GASKET  
7. 161-7293 [1] GASKET-CYLINDER  
8. 142-5868 [1] SEAL-CRANKSHAFT (REAR)(REAR)  
9. 126-2702 [2] SEAL-INTEGRAL  
10. 198-6068 [2] SEAL-INTEGRAL  
11. 259-4598 [2] SEAL-O-RING  
12. 112-3540 [2] SEAL-O-RING  
13. 114-4427 [2] SEAL-O-RING  
14. 214-7568 [4] SEAL-O-RING  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD IN ADDITION TO THE KIT CONSIST, PLEASE VISIT:
   
    HTTPS://DEALER.CAT.COM/RELATED
 

#SEBP39980044
 

421-1306: KIT-ENGINE GASKET

421-1306 KIT-ENGINE GASKET
CONTAINS THE GASKETS & SEALS TO REINSTALL THE WATER PUMP & ATTACHING LINES
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@
FIELD INSTALLATION
i05221990 SEBP3998
4211306 KIT-ENGINE GASKET Parts scheme
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2N-0931 [1] GASKET  
2. 4N-1946 [1] GASKET  
3. 7C-0307 [1] GASKET (REGULATOR HOUSING, OUTLET)  
4. 4S-5898 [1] SEAL-O-RING  
5. 9X-7371 [1] SEAL-O-RING  
6. 467-2620 [1] SEAL-O-RING  
7. 112-1580 [1] SEAL-O-RING  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD IN ADDITION TO THE KIT CONSIST, PLEASE VISIT:
   
    HTTPS://DEALER.CAT.COM/RELATED
 

#SEBP39980045
 

556-8551: KIT-ENGINE GASKET

556-8551 KIT-ENGINE GASKET
TURBOCHARGER
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@
FIELD INSTALLATION
i07389906 SEBP3998
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7M-7273 [1] GASKET  
  226-4753 [1] GASKET  
  3E-6916 [4] NUT-FULL (3/8-16-THD)  
  126-2702 [1] SEAL-INTEGRAL  
  198-6068 [1] SEAL-INTEGRAL  
  3E-6773 [1] SEAL-O-RING  
  6V-3917 [4] SEAL-O-RING  
  6V-6228 [1] SEAL-O-RING  
  112-3540 [1] SEAL-O-RING  
  114-2687 [1] SEAL-O-RING  
  114-4427 [1] SEAL-O-RING  
  516-5987 [4] STUD-TAPERLOCK (3/8-16X1.77-IN)  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD TO THE KIT CONSIST, PLEASE VISIT
   
    HTTP://DEALER.CAT.COM/RELATED
 

#SEBP39980046
 

556-8659: KIT-ENGINE GASKET

556-8659 KIT-ENGINE GASKET
SINGLE CYLINDER HEAD
PART OF 421-9727, 436-1748 KIT-ENGINE OVERHAUL
FOR USE WITH @@@@@238-8190@@@@@, @@@@@238-8191@@@@@
ALSO AN ATTACHMENT AND FIELD INSTALLATION
i07389902 SEBP3998
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4N-1684 [1] GASKET  
  4N-4307 [1] GASKET  
  7C-0307 [2] GASKET  
  7M-7273 [1] GASKET  
  4N-7253 [6] GASKET-CHAMBER  
  225-3099 [1] GASKET-CYLINDER HEAD  
  129-9452 [6] GASKET-EXHAUST MANIFOLD  
  225-3101 [1] GASKET-PLATE  
  3E-6916 [4] NUT-FULL (3/8-16-THD)  
  5P-5678 [7] SEAL  
  428-9129 [1] GASKET  
  359-1439 [24] SEAL AS-WATER  
  126-2702 [1] SEAL-INTEGRAL  
  198-6068 [1] SEAL-INTEGRAL  
  3S-9643 [2] SEAL-LIP TYPE  
  3E-6773 [1] SEAL-O-RING  
  5P-8119 [6] SEAL-O-RING  
  5P-8356 [2] SEAL-O-RING  
  6V-3831 [1] SEAL-O-RING  
  6V-3917 [4] SEAL-O-RING  
  6V-6228 [1] SEAL-O-RING  
  7J-2036 [2] SEAL-O-RING  
  7L-4774 [6] SEAL-O-RING  
  464-0509 [4] SEAL-O-RING  
  109-0076 [3] SEAL-O-RING  
  109-0078 [2] SEAL-O-RING  
  112-3258 [2] SEAL-O-RING  
  114-2687 [1] SEAL-O-RING  
  272-2583 [3] SEAL-O-RING  
  4N-6295 [1] SLEEVE-RETURN  
  516-5987 [4] STUD-TAPERLOCK (3/8-16X1.77-IN)  
  8H-9204 [6] WASHER-FELT (19/32X7/8X5/16-IN THK)  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD TO THE KIT CONSIST, PLEASE VISIT
   
    HTTP://DEALER.CAT.COM/RELATED
 

#SEBP39980047
 

419-8235: KIT-ENGINE OVERHAUL

419-8235 KIT-ENGINE OVERHAUL
MAJOR OVERHAUL
FIELD REPLACEMENT ORDER @@@@@436-1748@@@@@
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@, REHS7922
FIELD INSTALLATION
i05214174 SEBP3998
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  420-0923 Y [1] KIT-AFTERCOOLER GASKET  
  420-4502 Y [2] KIT-CYLINDER HEAD GASKET  
  420-0926 Y [1] KIT-FRONT COVER GASKET  
  6V-0237 Y [1] KIT-GASKET (EXP TANK OR HEAT EXCHANGER)  
  258-8117 Y [12] KIT-GASKET (SINGLE CYLINDER LINER)  
  281-0029 Y [12] KIT-GASKET (SINGLE FUEL INJECTOR SEALS)  
  420-0925 Y [1] KIT-GASKET (CENTRAL, LOWER)  
  421-1305 Y [1] KIT-GASKET (FUEL SYSTEM)  
  421-8976 Y [1] KIT-GASKET (OIL COOLER, LINES)  
  420-4866 Y [1] KIT-ENGINE GASKET  
   
  2B-2695 [4] BOLT (5/16-18X0.875-IN)  
  3B-1915 [2] BOLT (3/8-16X1.375-IN)  
  3G-2292 [5] BOLT-LOCKING (3/8-16X0.87-IN)  
  9Y-2988 [1] BREATHER AS (CRANKCASE)  
  4N-0685 [5] BUSHING (1-IN WIDE)  
  379-0191 [1] BUSHING  
  4N-6658 [2] BUSHING (1.3-IN WIDE)  
  373-1885 [1] BUSHING  
  6N-0977 [1] BUSHING  
  417-4524 [1] BUSHING  
  2N-8109 [1] CLAMP  
  7W-0316 [2] CLAMP  
  8N-9758 [2] CLAMP  
  4M-1336 [2] FERRULE  
  1R-1808 [2] FILTER-ENGINE OIL (ADVANCED EFFICIENCY)  
  1R-0749 [2] FILTER-FUEL (ADVANCED EFFICIENCY)  
  2P-8669 [1] GASKET  
  226-4753 [2] GASKET  
  2K-4973 [1] LOCKNUT (3/8-16-THD)  
  2N-2766 [24] LOCKNUT (3/8-16-THD)  
  8M-2296 [8] NUT-FULL (3/8-16-THD)  
  5H-8985 [1] PIN-SPRING  
  4N-0342 [1] PLATE  
  375-9974 [1] PLATE  
  6N-1027 [1] PLATE-THRUST  
  112-9217 [1] PLATE-THRUST  
  5F-0304 [5] PLUG  
  111-2721 [1] PLUG-FELT  
  9S-4190 [6] PLUG-O-RING (7/8-14-THD)  
  7W-6492 [2] PLUG-PIPE (1/2-14-THD)  
  7W-6534 [6] PLUG-PIPE  
  8T-6757 [6] PLUG-PIPE  
  8T-6763 [4] PLUG-PIPE (1/4-18-THD)  
  392-9208 [2] PLUNGER-VALVE (RELIEF)  
  248-5513 [2] REGULATOR-TEMPERATURE (92-DEG C)  
  3E-6773 [2] SEAL-O-RING  
  6V-5063 [1] SEAL-O-RING  
  061-9456 [1] SEAL-O-RING  
  112-3540 [2] SEAL-O-RING  
  114-2687 [2] SEAL-O-RING  
  114-4427 [2] SEAL-O-RING  
  2F-4967 [2] SPACER (10.5X19X5.512-MM THK)  
  2Y-9255 [2] SPACER (11X19X5-MM THK)  
  114-9224 [28] SPACER (11.13X19.05X47-MM THK)  
  293-3286 [4] SPACER (11.1X21.5X6.3-MM THK)  
  2S-2760 [1] SPRING  
  4N-8150 [2] SPRING  
  305-6843 [24] SPRING-GUIDE  
  6K-0806 [6] STRAP-CABLE  
  4F-9081 [1] STUD  
  7C-7407 [1] STUD  
  2P-4304 [1] STUD-HOLLOW  
  2P-1974 [3] STUD-TAPERLOCK (3/8-16X4.2-IN)  
  3K-3256 [3] STUD-TAPERLOCK (3/8-16X1.7-IN)  
  3M-0496 [1] STUD-TAPERLOCK (3/8-16X2.6-IN)  
  6F-7012 [4] STUD-TAPERLOCK (3/8-16X1.57-IN)  
  6L-4428 [3] STUD-TAPERLOCK (3/8-16X4.01-IN)  
  6L-8562 [8] STUD-TAPERLOCK (3/8-16X1.77-IN)  
  8M-1047 [8] STUD-TAPERLOCK (3/8-16X1.67-IN)  
  106-1792 [24] STUD-TAPERLOCK (3/8-16X4-IN)  
  6V-1520 [2] VALVE-DRAIN  
  5M-2894 [3] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  7N-2443 [1] WASHER-THRUST (2.508X3.5X0.188-IN THK)  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD IN ADDITION TO THE KIT CONSIST, PLEASE VISIT:
   
    HTTPS://DEALER.CAT.COM/RELATED
  Y   SEPARATE ILLUSTRATION
 

#SEBP39980048
 

421-9727: KIT-ENGINE OVERHAUL

421-9727 KIT-ENGINE OVERHAUL
TOP END
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@, REHS7917
ALSO AN ATTACHMENT AND FIELD INSTALLATION
i05214082 SEBP3998
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  420-0923 Y [1] KIT-AFTERCOOLER GASKET  
  556-8659 Y [2] KIT-ENGINE GASKET (SINGLE CYLINDER HEAD)  
  6V-0237 Y [1] KIT-GASKET (EXP TANK OR HEAT EXCHANGER)  
  421-1305 Y [1] KIT-GASKET (FUEL SYSTEM)  
  421-8976 Y [1] KIT-GASKET (OIL COOLER, LINES)  
   
  1R-1808 [2] FILTER-ENGINE OIL (ADVANCED EFFICIENCY)  
  1R-0749 [2] FILTER-FUEL (ADVANCED EFFICIENCY)  
  226-4753 [2] GASKET  
  2N-2766 [24] LOCKNUT (3/8-16-THD)  
  3E-6916 [8] NUT-FULL (3/8-16-THD)  
  248-5513 [2] REGULATOR-TEMPERATURE (92-DEG C)  
  3E-6773 [2] SEAL-O-RING  
  6V-5063 [1] SEAL-O-RING  
  124-1858 [1] SEAL-O-RING  
  112-3540 [2] SEAL-O-RING  
  114-2687 [2] SEAL-O-RING  
  114-4427 [2] SEAL-O-RING  
  305-6843 [24] SPRING-GUIDE  
  106-1792 [24] STUD-TAPERLOCK (3/8-16X4-IN)  
   
    FOR A LIST OF RELATED PARTS THAT MAY BE REQUIRED FOR THE ENGINE REBUILD IN ADDITION TO THE KIT CONSIST, PLEASE VISIT:
   
    HTTPS://DEALER.CAT.COM/RELATED
  Y   SEPARATE ILLUSTRATION
 

#SEBP39980049
 

436-1748: KIT-ENGINE OVERHAUL

436-1748 KIT-ENGINE OVERHAUL -MARINE
THIS KIT WAS CREATED TO REPLACE 419-8235 KIT. RELEASE OF THE MAJOR OVERHAUL KIT FOR THE 3412C MARINE GENERATOR SET ENGINE
FIELD REPLACEMENT FOR @@@@@419-8235@@@@@
FOR USE WITH @@@@@238-8191@@@@@, @@@@@238-8190@@@@@, REHS8155
ALSO AN ATTACHMENT AND FIELD INSTALLATION
i05330143 SEBP3998
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  420-0923 Y [1] KIT-AFTERCOOLER GASKET  
  556-8659 Y [2] KIT-ENGINE GASKET (SINGLE CYLINDER HEAD)  
  420-4866 Y [1] KIT-ENGINE GASKET (REAR STRUCTURE)  
  420-0926 Y [1] KIT-FRONT COVER GASKET  
  6V-0237 Y [1] KIT-GASKET (EXP TANK OR HEAT EXCHANGER)  
  420-0925 Y [1] KIT-GASKET (CENTRAL, LOWER)  
  421-1305 Y [1] KIT-GASKET (FUEL SYSTEM)  
  421-8976 Y [1] KIT-GASKET (OIL COOLER, LINES)  
   
  2B-2695 [4] BOLT (5/16-18X0.875-IN)  
  3B-1915 [2] BOLT (3/8-16X1.375-IN)  
  3G-2292 [5] BOLT-LOCKING (3/8-16X0.87-IN)  
  9Y-2988 [1] BREATHER AS (CRANKCASE)  
   
  4N-0685 [5] BUSHING (1-IN WIDE)  
  4N-6658 [2] BUSHING (1.3-IN WIDE)  
  6N-0977 [1] BUSHING  
  2N-8109 [1] CLAMP  
  4M-1336 [2] FERRULE  
  1R-1808 [2] FILTER-ENGINE OIL (ADVANCED EFFICIENCY)  
  1R-0749 [2] FILTER-FUEL (ADVANCED EFFICIENCY)  
  2P-8669 [1] GASKET  
  226-4753 [2] GASKET  
  2K-4973 [1] LOCKNUT (3/8-16-THD)  
  2N-2766 [24] LOCKNUT (3/8-16-THD)  
  3E-6916 [8] NUT-FULL (3/8-16-THD)  
  5H-8985 [1] PIN-SPRING  
  4N-0342 [1] PLATE  
  6N-1027 [1] PLATE-THRUST  
  112-9217 [1] PLATE-THRUST  
  5F-0304 [5] PLUG  
  111-2721 [1] PLUG-FELT  
  9S-4190 [6] PLUG-O-RING (7/8-14-THD)  
  7W-6492 [2] PLUG-PIPE (1/2-14-THD)  
  7W-6534 [6] PLUG-PIPE  
  8T-6757 [6] PLUG-PIPE  
  8T-6763 [4] PLUG-PIPE (1/4-18-THD)  
  392-9208 [2] PLUNGER-VALVE (RELIEF)  
  248-5513 [2] REGULATOR-TEMPERATURE (92-DEG C)(WATER, COOLANT)  
  3E-6773 [2] SEAL-O-RING  
  6V-5063 [1] SEAL-O-RING  
  124-1858 [1] SEAL-O-RING  
  112-3540 [2] SEAL-O-RING  
  114-2687 [2] SEAL-O-RING  
  114-4427 [2] SEAL-O-RING  
  2S-2760 [1] SPRING  
  4N-8150 [2] SPRING  
  305-6843 [24] SPRING-GUIDE  
  6K-0806 [6] STRAP-CABLE  
  106-1792 [24] STUD-TAPERLOCK (3/8-16X4-IN)  
  6V-1520 [2] VALVE-DRAIN  
  5M-2894 [3] WASHER-HARD (10.2X18.5X2.5-MM THK)  
  7N-2443 [1] WASHER-THRUST (2.508X3.5X0.188-IN THK)  
   
    FOR A LIST OF RELATED PARTS THAT REQUIRED FOR THE ENGINE REBUILD TO THE KIT CONSIST, PLEASE VISIT
   
    HTTPS://DEALER.CAT.COM/RELATED
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
A New Front and Rear Cover Seal Is Available for Certain 3400 Series Industrial Engines {1151, 1157, 7555}
2013/03/29
Specifications
Flywheel Housing
3408C, 3412C and 3412D High Performance Marine Engines
Testing and Adjusting
Flywheel Housing - Inspect
3408C, 3412C and 3412D High Performance Marine Engines

Caterpillar Parts SIS Catalog 3412D :

GUARD GP-DAMPER
6N-2890 GUARD GP-DAMPER
GUARD GP-BELT
1W-1630 GUARD GP-BELT
GEAR GP-REAR
4N-3825 GEAR GP-REAR
GEAR GP-FRONT
4N-6341 GEAR GP-FRONT
FLYWHEEL GP
7N-3079 FLYWHEEL GP
FLYWHEEL GP
4N-0805 FLYWHEEL GP
DRIVE GP-PUMP
7N-2645 DRIVE GP-PUMP
DRIVE GP-PUMP
7N-2642 DRIVE GP-PUMP
HOUSING GP-FRONT
4N-5226 HOUSING GP-FRONT
KIT-CYLINDER HEAD GASKET
420-4502 KIT-CYLINDER HEAD GASKET
KIT-ENGINE GASKET
420-4866 KIT-ENGINE GASKET
KIT-ENGINE GASKET
421-1306 KIT-ENGINE GASKET
556-8551 KIT-ENGINE GASKET
556-8659 KIT-ENGINE GASKET
419-8235 KIT-ENGINE OVERHAUL
421-9727 KIT-ENGINE OVERHAUL

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