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4W2556 VIBRATION DAMPER GROUP Serial No. 67B2448-Up Not For Use With Solid Ring Crankshaft Seal D398A


BASIC ENGINE
DAMPER GP
FLYWHEEL GP
CAMSHAFT GP
PISTON & ROD GP
CAMSHAFT GP
PISTON & ROD GP
CRANKSHAFT GP
DRIVE GP-ACCESSORY

MARINE ENGINE D398A MARINE ENGINE 67B
 D398B MARINE ENGINE 67B01391-UP UEG0646S D398A 67B   (1961)

BASIC ENGINE

DAMPER GP
DAMPER GP
3N-5560 DAMPER GP
DAMPER GP
3N-5561 DAMPER GP
DAMPER GP
3N-5562 DAMPER GP
DAMPER GP
3N-5562 DAMPER GP
DAMPER GP-VIBRATION
4L-1137 DAMPER GP-VIBRATION
DAMPER GP-VIBRATION
3N-6355 DAMPER GP-VIBRATION
DAMPER GP-VIBRATION
3N-6355 DAMPER GP-VIBRATION
DAMPER GP
4W-2556 DAMPER GP
DAMPER GP-VIBRATION
3N-5579 DAMPER GP-VIBRATION
DAMPER GP
4W-2560 DAMPER GP
 

#UEG0646S0100
 

4W-2556: DAMPER GP

4W2556 VIBRATION DAMPER GROUP
Serial No. 67B2448-Up
Not For Use With Solid Ring Crankshaft Seal
c318417 UEG0646S
4W2556 DAMPER GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-8785 [1] ADAPTER-DAMPER  
2. 0T-0603 [10] BOLT  
  4M-6953 [10] WASHER-HARD  
3. 2P-1793 [1] DAMPER AS  
  5M-9709 [2] PLUG-EXPANSION  
4. 0S-1587 [10] BOLT  
  5P-8245 [10] WASHER  
5. 1A-2029 [9] BOLT  
  5M-2894 [9] WASHER  
6. 5N-1621 [1] COVER  
7. 5N-1626 [1] GUARD AS-DAMPER  
8. 5N-1622 [6] BRACKET  
9. 0T-0318 [12] BOLT  
  5P-8244 [12] WASHER  
 

#UEG0646S0101
 

5L-1955: FLYWHEEL GP

FLYWHEEL (5L1955 N/S)--S.A.E. Standard Engine Rotation
c138084 UEG0646S
5L1955 FLYWHEEL GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1N-5742 [1] GEAR (183 TEETH)  
    (PART OF FLYWHEEL ASSEM. 1N5748)
  5L-6745 [1] POINTER  
    (TIMING)
  0S-1596 C [10] BOLT  
  4M-6953 C [10] WASHER  
  1N-5748 C [1] FLYWHEEL ASSEM.  
  C   INDICATES CHANGE
 

#UEG0646S0102
 

1N-5760: FLYWHEEL GP

FLYWHEEL (1N5760 N/S)--S.A.E. Opposite Standard Engine Rotation
c138045 UEG0646S
1N5760 FLYWHEEL GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1N-5743 [1] GEAR (183 T.)  
    (PART OF FLYWHEEL ASSEM. 1N5749)
  5L-6745 [1] POINTER  
    (TIMING)
  0S-1596 C [10] BOLT  
  4M-6953 C [10] WASHER  
  1N-5749 [1] FLYWHEEL ASSEM.  
  C   INDICATES CHANGE
 

#UEG0646S0103
 

4L-1131: CAMSHAFT GP

4L1131 CAMSHAFT GROUP
Serial No. 67B1391 to 67B2352 inclusive
c102752 UEG0646S
4L1131 CAMSHAFT GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-3777 [1] GEAR (96 TEETH)  
  0L-1351 [4] BOLT  
  4L-6182 [2] LOCK  
  1B-8741 [1] KEY  
  0S-1585 [2] BOLT  
  4L-6184 [1] LOCK  
  5L-2101 [1] PLATE  
  6H-1717 [8] BOLT  
  4L-6183 [4] LOCK  
  8B-1312 [1] PIN  
    (PART OF GEAR ASSEM. 4L6753)
  4L-6753 [1] GEAR ASSEM. (80 TEETH)  
  6L-2195 [1] WASHER ASSEM.  
  5L-2880 [1] CAMSHAFT  
    NOTE: FOR SAE OPPOSITE STANDARD ROTATION ASSEMBLE GEARS ON END OF CAMSHAFT MARKED "F"
 

#UEG0646S0104
 

6L-2868: PISTON & ROD GP

6L2868 CONNECTING ROD AND PISTON GROUP--12 Required
Serial No. 67B1391 to 67B2047 inclusive
c227696 UEG0646S
6L2868 PISTON & ROD GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3S-5502 [1] PISTON ASSEM.  
    (Includes)
2. 9S-7507 [1] RING (top)  
3. 3S-4059 [1] RING (intermediate)  
4. 5M-5487 [1] RING (oil)  
5. 1P-0009 R [1] ROD ASSEM.  
    (Includes)
6. 1P-1758 [2] BOLT  
7. 7M-4925 [1] BEARING  
8. 4L-3763 [1] BEARING (standard)  
  6N-8317 C [1] BEARING  
    .635 mm(.025 in.) U.S.-.254 mm(.01 in.) O.S.
  6N-8316 C [1] BEARING  
    1.27 mm(.05 in.) U.S.-.254 mm(.01 in.) O.S.
  5L-4195 [1] BEARING 1.27 mm(.05 in.) U.S.  
  6N-8318 C [1] BEARING .254 mm(.01 in.) O.S.  
9. 7M-4926 [2] RETAINER  
10. 4L-3843 [1] PIN  
  4S-7424 C [1] PISTON RING GROUP  
    (Includes a complete set of rings for one piston)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0646S0105
 

4L-1131: CAMSHAFT GP

4L1131 CAMSHAFT GP
S/N 67B2353-Up
c470538 UEG0646S
4L1131 CAMSHAFT GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4L-6753 [1] GEAR AS-CAMSHAFT  
    (80 TEETH)
2. 8B-1312 [1] DOWEL  
3. 6H-1717 [8] BOLT  
4. 5L-2101 [1] PLATE  
5. 4L-6184 [1] LOCK-NUT  
6. 0S-1585 [2] BOLT  
7. 1B-8741 [1] KEY-WOODRUFF  
8. 0L-1351 [4] BOLT  
  4L-6182 [2] LOCK-NUT  
9. 4L-3777 [1] GEAR-CAMSHAFT (96 TEETH)  
10. 6L-2195 [1] WASHER AS-THRUST  
  3F-4479 [1] PIN-SPRING  
11. 1W-1854 C [1] CAMSHAFT  
  C   CHANGE FROM PREVIOUS TYPE
 

#UEG0646S0106
 

6L-2868: PISTON & ROD GP

6L2868 CONNECTING ROD AND PISTON GROUP--12 REQUIRED
Serial No. 67B2048-Up
c323093 UEG0646S
6L2868 PISTON & ROD GP Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-5499 C [1] PISTON GP  
2. 9S-7507 [1] RING-PISTON TOP (TOP)  
3. 3S-4059 [1] RING-PISTON (INTERMEDIATE)  
4. 5M-5487 [1] RING-PISTON (OIL)  
5. 1P-0009 R [1] ROD AS-CONNECTION  
6. 1P-1758 [2] BOLT-GROUND BODY  
7. 8N-2275 C [1] BEARING-SLEEVE  
8. 8N-7769 C [1] BEARING-CONNECTING ROD (STANDARD)  
  8N-7773 AC [1]  
    .635MM(.025IN) U.S.
    .254MM(.01IN) O.S.
  8N-7774 AC [1] BEARING  
    1.27MM(.05IN) U.S.
    .254MM(.01IN) O.S.
  8N-7771 AC [1] BEARING 1.27MM(.05IN) U.S.  
  8N-7772 AC [1] BEARING .254MM(.01IN) O.S.  
  8N-7770 AC [1] BEARING .63MM(.024IN) U.S.  
9. 7M-4926 [2] RETAINER-PIN  
10. 7N-9810 C [1] PIN-PISTON  
  9S-8973 AC [1] RING GP-PISTON  
    (INCLUDES A COMPLETE SET
    OF RINGS FOR ONE PISTON)
  A   NOT PART OF THIS GROUP
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0646S0107
 

BEARINGS REPLACEMENT

BEARINGS REPLACEMENT
UEG0646S0107 UEG0646S
None BEARINGS REPLACEMENT Parts scheme
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Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UEG0646S0108
 

3N-2683: DRIVE GP-FRONT ACCESSORY

3N2683 FRONT ACCESSORY DRIVE GROUP--S.A.E. Standard Engine Rotation--Part 1
Serial No. 67B1391 to 67B1831 inclusive
Refer also to Page 110 for special parts
c115145 UEG0646S
3N2683 DRIVE GP-FRONT ACCESSORY Parts scheme
  For full view, you need register

Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  6L-2062 [1] HOUSING  
  4L-3748 [1] RETAINER ASSEM.  
  5B-9318 [1] BALL  
  5L-2660 [1] BEARING  
    (PARTS OF RETAINER ASSEM. 4L3748)
  5H-6012 [1] SEAL  
  4L-3437 [1] GASKET  
  4L-3431 [1] COVER  
  1A-2029 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4L-3375 [1] GASKET  
  1F-7604 [1] FERRULE  
    (PART OF TUBE ASSEM. 4L3362)
  1F-7603 [1] SCREW  
  1F-6936 [2] GASKET  
  4L-3382 [1] TUBE ASSEM.  
  3N-1345 [1] GEAR ASSEM.  
  6L-3552 [1] GEAR (32 TEETH)  
  1L-5072 [2] DOWEL  
  2N-9066 [1] ADAPTER  
    (PARTS OF 3N1345 ASSEM.)
  1D-4574 [8] BOLT  
  3B-4508 [8] LOCKWASHER  
  1D-4572 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  4L-3375 [1] GASKET  
  4L-3381 [1] TUBE ASSEM.  
  0S-0509 [6] BOLT (1.125" LONG)  
  3B-1915 [4] BOLT (1.75" LONG)  
  3B-4506 [14] LOCKWASHER  
  8L-8570 [2] COVER  
  4L-3437 [2] GASKET  
  1F-7603 [1] SCREW  
  0S-1571 [4] BOLT (1.75" LONG)  
  0S-1594 [1] BOLT (1" LONG)  
  1A-2029 [1] BOLT (1.125" LONG)  
  5L-5840 [2] WASHER  
  1F-7604 [1] FERRULE  
    (PART OF TUBE ASSEM. 4L3381)
  0L-1213 [2] GASKET  
 

#UEG0646S0109
 

3N-2683: DRIVE GP-FRONT ACCESSORY

3N2683 FRONT ACCESSORY DRIVE GROUP--S.A.E. Standard Engine Rotation--Part 2
Serial No. 67B1391 to 67B1831 inclusive
c115146 UEG0646S
3N2683 DRIVE GP-FRONT ACCESSORY Parts scheme
  For full view, you need register

Parts for your D398A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-3407 [1] GEAR ASSEM.  
    (71 TEETH)
  5L-9143 [2] BEARING  
    (PART OF GEAR ASSEM. 4L3407)
  6L-4783 [4] BOLT  
  9M-1974 [4] WASHER  
  4L-3413 [1] WASHER  
  6F-7030 [6] BOLT  
  4L-3759 [3] LOCK  
  4L-6703 [1] GEAR (25 TEETH)  
  4L-3370 [4] FITTING  
    (PART OF TUBE ASSEM. 4L3379)
  2N-9892 [1] PLATE  
  2N-7517 [2] BOLT (1.50" LONG)  
  013-1405 [2] NUT  
  3B-4505 [2] LOCKWASHER  
  2A-3278 [2] GASKET  
  6H-1717 [2] BOLT  
  4L-8767 [1] LOCK  
  0S-1621 [3] BOLT  
  3H-7654 [3] WASHER  
  0S-1585 [5] BOLT  
  3H-7654 [5] WASHER  
  0S-1587 [2] BOLT  
  3H-7654 [2] WASHER  
  4L-3728 [1] SHAFT ASSEM.  
  0S-1621 [6] BOLT  
  3H-7654 [6] WASHER  
  4L-3379 [1] TUBE ASSEM.  
  2H-7173 [1] FITTING  
    (PART OF TUBE ASSEM. 4L3379)
  1B-2790 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  6L-2069 [1] GASKET  
    (PLATE TO HOUSING)
  4L-3392 [1] GASKET (TO LOCK)  
  4L-3406 [1] GEAR ASSEM.  
    (40 TEETH)
  3N-1271 [2] SHAFT ASSEM.  
  2H-5558 [2] DOWEL  
    (1 IN EACH SHAFT ASSEM. 3N1271)
  0S-1594 [1] BOLT  
  8M-3175 [1] WASHER  
  4L-3404 [2] WASHER  
  2N-7516 [2] BOLT (1.875" LONG)  
  013-1405 [2] NUT  
  9M-1974 [2] WASHER  
  2A-3278 [2] GASKET  
  0S-0509 [1] BOLT (.75" LONG)  
  0T-0102 [1] BOLT (.625" LONG)  
  5L-5840 [2] WASHER  
  0S-1594 [1] BOLT  
  8M-3175 [1] WASHER  
  0S-1621 [5] BOLT  
  3H-7654 [5] WASHER  
  4L-3405 [1] GEAR ASSEM. (35T)  
  5L-2659 [4] BEARING  
    (2 IN EACH 4L3405 & 4L3406 ASSEM.)
  0L-1351 [4] BOLT  
  0L-1477 [2] LOCK  
 

Information:

Specifications
Vibration Damper<BR> D399 Engine with one damper:
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Disassembly and Assembly
Vibration Damper (D398 and D399)
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Service Magazine
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

Caterpillar Parts SIS Catalog D398A :

DAMPER GP-VIBRATION
3N-6355 DAMPER GP-VIBRATION
DAMPER GP-VIBRATION
3N-6355 DAMPER GP-VIBRATION
GASKET KITS
DAMPER GP-VIBRATION
4L-1137 DAMPER GP-VIBRATION
DAMPER GP
3N-5562 DAMPER GP
DAMPER GP
3N-5562 DAMPER GP
DAMPER GP
3N-5561 DAMPER GP
SEAL GP-CRANKSHAFT CONVERSION
4W-2569 SEAL GP-CRANKSHAFT CONVERSION
FLYWHEEL GP
5L-1955 FLYWHEEL GP
FLYWHEEL GP
1N-5760 FLYWHEEL GP
CAMSHAFT GP
4L-1131 CAMSHAFT GP
PISTON & ROD GP
6L-2868 PISTON & ROD GP
CAMSHAFT GP
4L-1131 CAMSHAFT GP
PISTON & ROD GP
6L-2868 PISTON & ROD GP
BEARINGS REPLACEMENT
BEARINGS REPLACEMENT
DRIVE GP-FRONT ACCESSORY
3N-2683 DRIVE GP-FRONT ACCESSORY

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