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420-0926 KIT-FRONT COVER GASKET CONTAINS GASKETS, SEALS, & BENDABLE LOCKS TO REINSTALL THE FRONT 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 3412D


SERVICE EQUIPMENT AND SUPPLIES
GASKET & SEAL KITS
BASIC ENGINE
LIFTING GP-ENGINE
MOUNTING GP-ALTERNATOR
PAN GP-OIL
PISTON & ROD GP
CYLINDER BLOCK GP
CYLINDER HEAD GP
POWER TAKE-OFF GP

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

SERVICE EQUIPMENT AND SUPPLIES

GASKET & SEAL KITS
KIT-CYLINDER HEAD GASKET
420-4502 KIT-CYLINDER HEAD GASKET
KIT-FRONT COVER GASKET
420-0926 KIT-FRONT COVER GASKET
KIT-AFTERCOOLER GASKET
420-0923 KIT-AFTERCOOLER GASKET
258-8117 KIT-GASKET
281-0029 KIT-GASKET
KIT-GASKET
420-0925 KIT-GASKET
KIT-GASKET
421-1305 KIT-GASKET
KIT-GASKET
421-8976 KIT-GASKET
437-4584 KIT-GASKET
6V-0237 KIT-GASKET
 

#SEBP39980050
 

420-0926: KIT-FRONT COVER GASKET

420-0926 KIT-FRONT COVER GASKET
CONTAINS GASKETS, SEALS, & BENDABLE LOCKS TO REINSTALL THE FRONT 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
i05214233 SEBP3998
4200926 KIT-FRONT COVER 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. 6N-2508 [1] GASKET  
2. 193-9155 [1] GASKET  
3. 166-9145 [1] GASKET-CYLINDER BLOCK  
4. 4N-1156 [2] GASKET-REGULATOR COVER  
5. 142-5867 [1] SEAL-CRANKSHAFT (FRONT)  
6. 234-8937 [1] SEAL-INTEGRAL  
7. 259-4598 [1] SEAL-O-RING  
8. 9X-7371 [1] SEAL-O-RING  
9. 467-2620 [1] SEAL-O-RING  
10. 112-1580 [1] SEAL-O-RING  
11. 214-7568 [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
 

#SEBP39980051
 

241-9370: LIFTING GP-ENGINE

241-9370 LIFTING GP-ENGINE
ALSO AN ATTACHMENT
i01970027 SEBP3998
2419370 LIFTING GP-ENGINE Parts scheme
  For full view, you need register

Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 120-1906 [1] EYE-LIFTING (REAR)  
2. 120-1909 [1] PLATE  
3. 241-9369 [1] SUPPORT  
4. 0L-1352 [1] BOLT (3/8-16X3.25-IN)  
5. 0S-1587 [2] BOLT (1/2-13X1.75-IN)  
6. 0S-1590 [2] BOLT (3/8-16X2-IN)  
7. 1A-2029 [10] BOLT (3/8-16X1.125-IN)  
8. 2M-0849 [2] WASHER-HARD (13.5X25.5X5-MM THK)  
9. 2M-1538 [1] STUD-TAPERLOCK (3/8-16X1.6-IN)  
10. 3B-1915 [4] BOLT (3/8-16X1.375-IN)  
11. 5M-2894 [22] WASHER-HARD (10.2X18.5X2.5-MM THK)  
12. 8S-9089 [2] BOLT (1/2-13X4.5-IN)  
13. 9S-8752 [7] NUT-FULL (3/8-16-THD)  
 

#SEBP39980052
 

7W-4071: MOUNTING GP-ALTERNATOR

7W-4071 MOUNTING GP-ALTERNATOR
FOR USE WITH @@@@@ 6T-1395@@@@@
AN ATTACHMENT
i01686622 SEBP3998
7W4071 MOUNTING GP-ALTERNATOR Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-2704 [1] PLATE-MOUNTING  
2. 4S-5780 [1] ROD  
3. 4W-4640 [1] PLATE  
4. 6H-7062 C [1] SPACER (13.5X25X19-MM THK)  
5. 8S-5383 [1] BLOCK  
6. 107-5818 C [1] PULLEY-ALTERNATOR (1-GROOVE)  
7. 206-2854 C [1] BRACKET AS  
8. 0S-1587 [4] BOLT (1/2-13X1.75-IN)  
9. 0S-1588 [1] BOLT (3/8-16X1.25-IN)  
10. 0S-1618 [2] BOLT (5/16-18X1-IN)  
11. 1D-4574 [1] BOLT (1/2-13X6-IN)  
12. 1F-7958 [2] NUT-FULL (1/2-13-THD)  
13. 2S-5658 [2] WASHER-HARD (17X29X3-MM THK)  
14. 4K-0367 [3] NUT-FULL (5/8-11-THD)  
15. 4N-8218 C [1] V-BELT (ALTERNATOR)  
16. 5M-2894 [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
17. 5P-8245 [8] WASHER-HARD (13.5X25.5X3-MM THK)  
18. 5P-8247 [1] WASHER-HARD (17X32X3.5-MM THK)  
19. 8S-9191 [2] BOLT (3/8-16X4-IN)  
20. 9M-1974 [2] WASHER-HARD (8.8X16X2-MM THK)  
21. 9X-8874 C [1] BOLT (1/2-13X3-IN)  
22. 9X-8880 [1] BOLT (5/8-11X2-IN)  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP39980053
 

7W-4072: MOUNTING GP-ALTERNATOR

7W-4072 MOUNTING GP-ALTERNATOR
FOR USE WITH @@@@@ 8M-7892@@@@@, CUSTOMER PROVIDED VOLTMETER OR AMMETER, 1500, 1800 OR 2100 RPM ENGINES
AN ATTACHMENT
i00411879 SEBP3998
7W4072 MOUNTING GP-ALTERNATOR Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-0602 [1] BRACKET AS  
2. 7N-9664 [1] PULLEY-ALTERNATOR (2-GROOVE)  
3. 9L-6648 [1] V-BELT SET (INCLUDES 2-BELTS)(ALTERNATOR)  
4. 0S-1587 [4] BOLT (1/2-13X1.75-IN)  
5. 4K-0367 [3] NUT-FULL (5/8-11-THD)  
  5P-8247 [3] WASHER-HARD (17X32X3.5-MM THK)  
6. 4S-5780 [1] ROD  
7. 4W-4640 [1] PLATE  
8. 8S-9191 [2] BOLT (3/8-16X4-IN)  
9. 0S-1588 [1] BOLT (3/8-16X1.25-IN)  
10. 5M-2894 [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
11. 8S-5383 [1] BLOCK  
12. 9X-8873 [1] BOLT (1/2-13X2.25-IN)  
13. 5P-8245 [8] WASHER-HARD (13.5X25.5X3-MM THK)  
14. 9X-8880 [1] BOLT (5/8-11X2-IN)  
15. 9H-8260 [1] BOLT (1/2-13X6.25-IN)  
16. 1F-7958 [1] NUT-FULL (1/2-13-THD)  
17. 2S-5658 [2] WASHER-HARD (17X29X3-MM THK)  
 

#SEBP39980054
 

4N-7182: PAN GP-OIL

4N-7182 PAN GP-OIL -ENGINE
ALSO AN ATTACHMENT
i00370910 SEBP3998
4N7182 PAN GP-OIL Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0794 [2] COVER  
2. 6N-1396 [1] GASKET-OIL PAN  
3. 7W-3447 [40] SPACER (10.2X19.05X10.2-MM THK)  
4. 239-5572 [2] SEAL-INTEGRAL  
5. 101-8564 [1] PAN AS-OIL  
6. 0S-1571 [40] BOLT (3/8-16X1.75-IN)  
7. 0S-1594 [4] BOLT (3/8-16X1-IN)  
8. 5M-2894 [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
9. 8T-6761 [3] PLUG-PIPE (1-11-1/2 NPT THD)(OIL PAN DRAIN)  
 

#SEBP39980055
 

235-1844: PISTON & ROD GP

235-1844 PISTON & ROD GP
15:1 COMPRESSION RATIO
ALSO AN ATTACHMENT
i01970007 SEBP3998
2351844 PISTON & ROD GP Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 150-1156 [1] BOLT-SPECIAL (OIL JET)  
2. 187-1503 [1] RING-PISTON (INTERMEDIATE)  
3. 524-5565 [1] PIN-PISTON  
4. 246-5659 [1] RING-PISTON (OIL CONTROL)  
5. 197-9391 [1] JET AS-PISTON COOLING  
6. 232-3232 [1] ROD AS  
6A. 213-3217 M [4] BOLT (M11X1.25X84-MM)  
6B. 219-4458 [2] PIN-DOWEL  
6C. 229-6259 [1] BEARING  
7. 232-3226 [1] BEARING-CONNECTING ROD (STANDARD)  
  341-0060 AB [1] BEARING-CONNECTING ROD (0.63-MM US)  
8. 223-9159 [1] RING-PISTON-TOP  
9. 230-2569 [2] RETAINER-PIN  
10. 330-6090 [1] BODY AS-PISTON  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP39980056
 

127-3512: PLUG GP-CYLINDER BLOCK

127-3512 PLUG GP-CYLINDER BLOCK
S/N REA1-2389
ALSO AN ATTACHMENT
i00089949 SEBP3998
1273512 PLUG GP-CYLINDER BLOCK Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4190 [6] PLUG-O-RING (7/8-14-THD)  
2. 6V-4589 [6] SEAL-O-RING  
3. 7W-6534 [4] PLUG-PIPE  
4. 8T-6757 [1] PLUG-PIPE  
 

#SEBP39980057
 

273-8668: PLUG GP-CYLINDER HEAD

273-8668 PLUG GP-CYLINDER HEAD
S/N REA2390-UP
ALSO AN ATTACHMENT
i02430462 SEBP3998
2738668 PLUG GP-CYLINDER HEAD Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-6762 [6] PLUG-PIPE (1/2-14-THD)  
2. 7X-7731 [2] PLUG-PIPE (3/4-14-THD)  
3. 5P-0063 [2] PLUG-CUP  
4. 4N-0932 [2] PLUG-CUP (57.53-MM OD)  
5. 8T-6764 [2] PLUG-PIPE (1/8-27-THD)  
 

#SEBP39980058
 

4W-9829: POWER TAKE-OFF GP

4W-9829 POWER TAKE-OFF GP
PROVIDES SPREAD BEARING SINGLE PLATE FRONT ENCLOSED CLUTCH
CANNOT BE USED WITH HYDRAULIC PUMP DRIVE ADAPTER OR 2100 RPM ENGINE
AN ATTACHMENT
i00380771 SEBP3998
4W9829 POWER TAKE-OFF GP Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-5822 [1] ADAPTER  
2. 0S-1594 [12] BOLT (3/8-16X1-IN)  
3. 5N-7329 Y [1] CLUTCH GP  
4. 5N-6958 [1] CHANNEL  
5. 0S-1566 [2] BOLT (5/8-11X1.5-IN)  
  5P-8247 [2] WASHER-HARD (17X32X3.5-MM THK)  
6. 0S-1591 [12] BOLT (3/8-16X1.5-IN)  
7. 0S-1573 [8] BOLT (1/2-13X4-IN)  
8. 4W-8688 [2] DOWEL-THREADED (5/16-18-THD)  
9. 4W-8689 [2] DOWEL-BUSHING  
10. 9F-6641 [2] BOLT (5/16-18X1.25-IN)  
11. 0S-1585 [1] BOLT (1/2-13X1.5-IN)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP39980059
 

4W-9830: POWER TAKE-OFF GP

4W-9830 POWER TAKE-OFF GP
CANNOT BE USED WITH HYDRAULIC PUMP DRIVE ADAPTER OR 2100 RPM ENGINE
AN ATTACHMENT
i00380772 SEBP3998
4W9830 POWER TAKE-OFF GP Parts scheme
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Parts for your 3412D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-5822 [1] ADAPTER  
2. 0S-1594 [12] BOLT (3/8-16X1-IN)  
    -OR-
  0S-1591 C [12] BOLT (3/8-16X1.5-IN)  
3. 5N-7330 Y [1] CLUTCH GP  
4. 5N-6958 [1] CHANNEL  
5. 0S-1566 [2] BOLT (5/8-11X1.5-IN)  
  5P-8247 [2] WASHER-HARD (17X32X3.5-MM THK)  
6. 0L-1143 [8] BOLT (3/8-16X2.5-IN)  
7. 0S-1573 [8] BOLT (1/2-13X4-IN)  
8. 4W-8688 [2] DOWEL-THREADED (5/16-18-THD)  
9. 4W-8689 [2] DOWEL-BUSHING  
10. 9F-6641 [2] BOLT (5/16-18X1.25-IN)  
11. 0S-1585 [1] BOLT (1/2-13X1.5-IN)  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

Information:

Engine News
Improved Gaskets for the Oil Filter Base Are Now Used on Certain Engines {1306, 1308, 7555}
2009/10/29
A New Front and Rear Cover Seal Is Available for Certain 3400 Series Industrial Engines {1151, 1157, 7555}
2013/03/29
A New Water Seal Assembly Is Now Used on All 3408, 3412, C27 and C32 Commercial Engines {1100, 7555}
2013/05/13
Special Instruction
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
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}
Guideline for Proper Gasket Handling and Installation {0599, 0648, 0681, 1000, 7555}
Guideline for Proper Gasket Handling and Installation {0599, 0648, 0681, 1000, 7555}
Reuse And Salvage Guidelines

Caterpillar Parts SIS Catalog 3412D :

436-1748 KIT-ENGINE OVERHAUL
421-9727 KIT-ENGINE OVERHAUL
419-8235 KIT-ENGINE OVERHAUL
556-8659 KIT-ENGINE GASKET
556-8551 KIT-ENGINE GASKET
KIT-ENGINE GASKET
421-1306 KIT-ENGINE GASKET
KIT-ENGINE GASKET
420-4866 KIT-ENGINE GASKET
KIT-CYLINDER HEAD GASKET
420-4502 KIT-CYLINDER HEAD GASKET
LIFTING GP-ENGINE
241-9370 LIFTING GP-ENGINE
MOUNTING GP-ALTERNATOR
7W-4071 MOUNTING GP-ALTERNATOR
MOUNTING GP-ALTERNATOR
7W-4072 MOUNTING GP-ALTERNATOR
PAN GP-OIL
4N-7182 PAN GP-OIL
PISTON & ROD GP
235-1844 PISTON & ROD GP
PLUG GP-CYLINDER BLOCK
127-3512 PLUG GP-CYLINDER BLOCK
PLUG GP-CYLINDER HEAD
273-8668 PLUG GP-CYLINDER HEAD
POWER TAKE-OFF GP
4W-9829 POWER TAKE-OFF GP

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