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CYLINDER HEAD AND VALVE MECHANISM Effective with Serial No. 44B558 Note: Cylinder Head Assembly shown on Page 46 must be used in place of 6H4177 Head Assembly on 2L5108, 2L6577 and 2L5109 Arrangements listed on Pages 14, 16 and 22 D375D


BASIC ENGINE
CYLINDER HEAD GP
CYLINDER BLOCK GP
CRANKSHAFT GP
FLYWHEEL GP

MARINE ENGINE D375D MARINE ENGINE 44B
 D375 MARINE ENGINE 44B00001-UP UE032465 D375D 44B   (1956)

BASIC ENGINE

CYLINDER HEAD GP
CYLINDER HEAD ASSEMBLY
CYLINDER HEAD ASSEMBLY
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
3L-1398 CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
3L-1398 CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
3L-1398 CYLINDER HEAD AND WATER COOLED MANIFOLD GROUP
CYLINDER HEAD AND VALVE MECHANISM GROUP
2F-7448 CYLINDER HEAD AND VALVE MECHANISM GROUP
 

#UE0324650050
 

CYLINDER HEAD AND VALVE MECHANISM

CYLINDER HEAD AND VALVE MECHANISM
Effective with Serial No. 44B558
Note: Cylinder Head Assembly shown on Page 46 must be used in place of 6H4177 Head Assembly on 2L5108, 2L6577 and 2L5109 Arrangements
listed on Pages 14, 16 and 22
c53408 UE032465
None CYLINDER HEAD AND VALVE MECHANISM Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6F-5027 [4] COVER  
  7B-1820 [8] STUD  
  7B-1756 [8] NUT  
  1A-2029 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  3F-8526 [8] WASHER  
  8F-4994 [8] SEAL  
  1B-4206 [8] NUT  
  3B-4621 [8] COTTER PIN  
  6H-0411 [24] WASHER  
  1B-9917 [8] SPRING (SHORT)  
  6F-5034 [4] SPRING  
  6F-5031 [4] SHAFT ASSEM.  
  3B-1142 [16] RETAINER  
  3B-1143 [48] LOCK  
  6F-5029 [4] BASE  
  6B-8505 [16] SLEEVE  
  4F-5408 [16] SPRING (OUTER)  
  4F-5409 [16] SPRING (INNER)  
  6B-6682 [64] NUT  
  5H-1504 [56] WASHER  
  6H-4177 [4] HEAD ASSEM.  
  3B-0623 [8] PLUG  
    (2 IN EACH ASSEM. 6H4177)
  5F-8266 [8] RETAINER  
  4F-5607 [8] SEAL  
  6B-7021 [8] SEAL  
  0L-0187 [32] STUD  
  5F-8265 [8] CHAMBER ASSEM.  
  7F-7666 [16] ROTOCAP  
  6F-5263 [16] BUSHING  
    (4 IN EACH HEAD ASSEM.)
  4H-9645 [8] GASKET  
  5H-7071 [32] DIRECTOR  
    (8 IN EACH HEAD ASSEM.)
  6B-6224 [32] FERRULE  
  6B-6225 [32] SEAL  
  6F-4862 [8] STUD  
  1B-4206 [8] NUT  
  1A-0744 [16] SCREW  
  1B-4204 [16] NUT  
  3B-0622 [8] PLUG  
    (2 IN EACH SHAFT ASSEM.)
  6F-5028 [4] GASKET  
  6F-5033 [8] BRACKET  
  4F-6024 [8] DOWEL  
    (2 IN EACH HEAD ASSEM.)
  2A-1278 [8] END  
  1B-4203 [8] NUT  
  0S-1588 [32] BOLT  
  0T-0431 [32] WASHER  
  3B-4506 [32] LOCKWASHER  
  6F-5030 [4] GASKET  
  6B-4040 [8] ROD  
  5H-2747 [2] BRACKET  
  5H-2746 [2] PAWL  
  6F-5037 [16] LIFTER ASSEM.  
  1A-2469 [16] BOLT  
  0L-0932 [8] LOCK  
  5F-4065 [4] BRACKET  
  6F-5035 [16] ROD ASSEM.  
  6B-4570 [8] ARM ASSEM.  
  1F-9232 [8] ARM ASSEM.  
  3F-7445 [16] BUSHING  
    (1 IN EACH ARM ASSEM.)
  7F-8922 [8] INSERT (EXHAUST)  
  7F-8923 [8] INSERT (INTAKE)  
    (2 OF EACH IN EACH HEAD ASSEM.)
  7F-4784 [8] VALVE (EXHAUST)  
  7F-5310 [8] VALVE (INTAKE)  
  6H-8652 [4] GASKET (STEEL)  
  6F-5040 [4] GASKET (CORK)  
  1F-6618 [2] BRACKET  
  6H-3081 [2] SHAFT  
  1F-9542 [2] SCREW  
  2A-3278 [2] GASKET  
  7B-0280 [4] SEAL  
 

#UE0324650051
 

CYLINDER HEAD AND VALVE MECHANISM

CYLINDER HEAD AND VALVE MECHANISM
Note: Cylinder Head Assembly shown on Page 46 must be used in place of 6H4177 Head Assembly on 2L5108,
2L6577 and 2L5109 Arrangements listed on Pages 14, 16 and 22
c43578 UE032465
None CYLINDER HEAD AND VALVE MECHANISM Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6F-5027 [4] COVER  
  7B-1820 [8] STUD  
  7B-1756 [8] NUT  
  1A-2029 [16] CAP SCREW  
  3B-4506 [16] LOCKWASHER  
  3F-8526 [8] WASHER  
  8F-4994 [8] SEAL  
  1B-4206 [8] NUT  
  3B-4621 [8] COTTER PIN  
  6H-0411 [24] WASHER  
  1B-9917 [8] SPRING (SHORT)  
  6F-5034 [4] SPRING  
  6F-5031 [4] SHAFT ASSEM.  
  3B-1142 [16] RETAINER  
  3B-1143 [48] LOCK  
  6F-5029 [4] BASE  
  6B-8505 [16] SLEEVE  
  4F-5408 [16] SPRING (OUTER)  
  4F-5409 [16] SPRING (INNER)  
  1B-4207 [64] NUT  
  1F-9233 [58] WASHER  
  6H-4177 [4] HEAD ASSEM.  
  3B-0623 [8] PLUG  
    (2 IN EACH ASSEM. 6H4177)
  5F-8266 [8] RETAINER  
  4F-5607 [8] SEAL  
  6B-7021 [8] SEAL  
  0L-0187 [32] STUD  
  5F-8265 [8] CHAMBER ASSEM.  
  7F-7666 [16] ROTOCAP  
  6F-5263 [16] BUSHING  
    (4 IN EACH HEAD ASSEM.)
  4H-9645 [8] GASKET  
  5H-7071 [32] DIRECTOR  
    (8 IN EACH HEAD ASSEM.)
  6B-6224 [32] FERRULE  
  6B-6225 [32] SEAL  
  6F-4862 [8] STUD  
  1B-4206 [8] NUT  
  1A-0744 [16] SCREW  
  1B-4204 [16] NUT  
  3B-0622 [8] PLUG  
    (2 IN EACH SHAFT ASSEM.)
  6F-5028 [4] GASKET  
  6F-5033 [8] BRACKET  
  4F-6024 [8] DOWEL  
    (2 IN EACH HEAD ASSEM.)
  2A-1278 [8] END  
  1B-4203 [8] NUT  
  0S-1588 [32] CAP SCREW  
  0T-0431 [32] WASHER  
  3B-4506 [32] LOCKWASHER  
  6F-5030 [4] GASKET  
  6B-4040 [8] ROD  
  5H-2747 [2] BRACKET  
  5H-2746 [2] PAWL  
  6F-5037 [16] LIFTER ASSEM.  
  1A-2469 [16] CAP SCREW  
  0L-0932 [8] LOCK  
  5F-4065 [4] BRACKET  
  6F-5035 [16] ROD ASSEM.  
  6B-4570 [8] ARM ASSEM.  
  1F-9232 [8] ARM ASSEM.  
  3F-7445 [16] BUSHING  
    (1 IN EACH ARM ASSEM.)
  5F-6259 [4] COVER  
  4F-5640 [4] GASKET  
  7F-8922 [8] INSERT (EXHAUST)  
  7F-8923 [8] INSERT (INTAKE)  
    (2 OF EACH IN EACH HEAD ASSEM.)
  7F-4784 [8] VALVE (EXHAUST)  
  7F-5310 [8] VALVE (INTAKE)  
  1F-3949 [4] GASKET (COPPER)  
  6F-5040 [4] GASKET (CORK)  
  1F-6618 [2] BRACKET  
  6H-3081 [2] SHAFT  
  1F-9542 [2] SCREW  
  2A-3278 [2] GASKET  
  7B-0280 [4] SEAL  
 

#UE0324650052
 

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--Side View--Part 1 of 2
c43584 UE032465
None CYLINDER BLOCK AND COVERS Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1177 [8] DOWEL  
  1F-6726 [1] TUBE  
  7F-5075 [1] BUSHING (4 1/18" LONG)  
  7F-5073 [4] BUSHING (2" LONG)  
  3B-0622 [2] PLUG  
  8F-4719 [2] STUD  
    (PARTS OF BLOCK ASSEM.)
  7F-5074 [1] BUSHING  
  2A-3798 [2] DOWEL  
  4F-5982 [1] PLUG  
    (PARTS OF ASSEM. 9F217)
  7F-8029 [1] PLATE  
    (COUNTERCLOCKWISE ENGINE ROTATION)
    -OR-
  [1] PLATE  
    (CLOCKWISE ENGINE ROTATION)
  4B-4158 [2] SCREW (DRIVE)  
  0L-1351 [8] CAP SCREW  
  6F-6968 [2] COVER  
  6F-6969 [2] GASKET  
  1F-6727 [2] GASKET  
  0S-1594 [4] CAP SCREW  
  3B-4506 [12] LOCKWASHER  
  5F-9303 [2] COVER  
  1F-3131 [2] GASKET  
  2B-7556 [22] CORK  
  3B-0623 [2] PLUG  
    (PART OF HOUSING ASSEM.)
  0S-0509 [2] CAP SCREW  
  5B-2200 [1] LOCK  
  6F-6973 [1] POINTER  
  5F-8555 [1] SHAFT  
  5F-8557 [1] SHAFT  
  2B-2994 [2] DOWEL  
  1F-8113 [16] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4206 [18] NUT  
  3B-4510 [18] LOCKWASHER  
  8F-9956 [1] SLINGER  
  8F-9960 [1] SEAL  
    (PARTS OF HOUSING ASSEM.)
  9F-0217 [1] HOUSING ASSEM.  
  3F-6808 [1] DOWEL  
  0L-2061 [1] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  1H-5894 [1] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2244 [2] SHIM  
  9F-2245 [6] SHIM  
    (PARTS OF CAP GROUP)
  1H-5893 [4] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2242 [8] SHIM  
    (2 IN EACH CAP GROUP 1H5893)
  9F-2243 [24] SHIM  
    (6 IN EACH CAP GROUP 1H5893)
  5B-7652 [5] DOWEL  
    (1 IN EACH GRP. 1H5893 & 1H5894)
  1H-4950 [2] PLATE  
  4B-4159 [8] SCREW (DRIVE)  
  6F-0234 [4] SUPPORT  
  4F-5046 [8] DOWEL  
  4F-5047 [8] STUD (15" LONG)  
  1F-2003 [4] STUD (14 1/4" LONG)  
  2A-4253 [12] NUT  
  7F-2002 [12] COTTER PIN  
    (PARTS OF BLOCK ASSEM.)
  1A-2036 [4] DOWEL  
  1F-3957 [48] STUD  
  1F-3958 [16] STUD  
  7F-6354 [1] PLATE (L.H.)  
  7F-6353 [1] PLATE (R.H.)  
  4B-4159 [6] SCREW (DRIVE)  
  0T-0643 [8] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  1H-5749 [1] BLOCK ASSEM.  
  0S-1588 [47] CAP SCREW  
  3B-4506 [48] LOCKWASHER  
  3B-1915 [1] BOLT  
  5B-5946 [2] PLUG  
  6B-9186 [2] GASKET  
  5F-9060 [2] DOWEL  
  3F-6795 [8] DOWEL  
  5F-8554 [1] SHAFT  
  3F-6795 [8] DOWEL  
  2B-8162 [2] DOWEL  
  5F-8556 [1] SHAFT  
  5F-8649 [1] TUBE ASSEM.  
  0L-1351 [3] CAP SCREW  
  3B-0088 [1] LOCK (2 5/16" LONG)  
  0L-0364 [1] LOCK (1 1/16" LONG)  
  0L-0659 [4] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4203 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  9B-1988 [2] COVER  
  0L-1160 [2] GASKET  
 

#UE0324650053
 

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--Front View--Part 2 of 2
Serial No. 44B1 to 44B518 inclusive
c43565 UE032465
None CYLINDER BLOCK AND COVERS Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-2029 [4] CAP SCREW (1 1/8" LONG)  
  0L-1351 [32] CAP SCREW (7/8" LONG)  
  4B-5167 [18] WASHER  
  3B-4506 [18] LOCKWASHER  
  0S-1619 [4] CAP SCREW  
  4B-5167 [4] WASHER  
  0T-0573 [4] CAP SCREW (2 3/4" LONG)  
  4B-5167 [4] WASHER  
  7H-0932 [4] COVER  
  1F-4419 [4] GASKET  
    (FOR USE ON 2L126, 6H3256, 6H3236, 2L166, 6H3246, 2L176 & 2L5564 ARR)
    -OR-
  1F-4200 [4] COVER  
    (FOR USE ON 2L5108, 2L6577 & 2L5109 ARR.)
  7B-2126 [24] SEAL  
  8B-0375 [8] LINER  
  2B-6463 [8] GASKET  
  7F-7670 [1] COVER  
  7F-7669 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  8F-0438 [1] SPREADER  
  8F-1601 [1] SPREADER  
  8F-0436 [1] SPREADER ASSEM. (REAR)  
    (NOT SHOWN)
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  1F-9223 [2] GASKET  
  0L-0827 [1] PLUG  
  0L-1124 [1] GASKET  
  1F-8068 [1] COVER ASSEM.  
  1F-8067 [1] GASKET (FRONT)  
  1F-8066 [2] GASKET (SIDE)  
  6F-5265 [1] GASKET (REAR)  
  3H-3838 [2] KNOB  
  [2] COVER  
  7B-3235 [12] CAP SCREW  
  3B-4508 [12] LOCKWASHER  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  1B-8633 [26] SHIM  
  7F-6026 [1] SUPPORT ASSEM.  
  0S-1594 [2] BOLT  
  1A-7427 [1] LOCK  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  7F-5174 [1] FLANGE  
  6F-7557 [1] GASKET  
  2B-7411 [1] PLUG  
  1F-4418 [4] COVER  
  1F-9223 [2] GASKET  
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  6B-7919 [2] COVER  
  1H-5903 [2] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
    (FOR USE ON 2L126 & 6H3256 ARR. ONLY)
 

#UE0324650054
 

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--Side View
Effective with Serial No. 44B519
c47463 UE032465
None CYLINDER BLOCK AND COVERS Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1177 [8] DOWEL  
  1F-6726 [1] TUBE  
  7F-5075 [1] BUSHING (4 1/16" LONG)  
  7F-5073 [4] BUSHING (2" LONG)  
  3B-0622 [2] PLUG  
  8F-4719 [2] STUD  
    (PARTS OF BLOCK ASSEM.)
  7F-5074 [1] BUSHING  
  2A-3798 [2] DOWEL  
  4F-5982 [1] PLUG  
    (PARTS OF ASSEM. 9F217)
  7F-8029 [1] PLATE  
    (COUNTERCLOCKWISE ENGINE ROTATION)
    -OR-
  [1] PLATE  
    (CLOCKWISE ENGINE ROTATION)
  4B-4158 [2] SCREW (DRIVE)  
  0L-1351 [8] CAP SCREW  
  6F-6968 [2] COVER  
  6F-6969 [2] GASKET  
  1F-6727 [2] GASKET  
  0S-1594 [4] CAP SCREW  
  3B-4506 [12] LOCKWASHER  
  5F-9303 [2] COVER  
  1F-3131 [2] GASKET  
  2B-7556 [22] CORK  
  3B-0623 [2] PLUG  
    (PART OF HOUSING ASSEM.)
  0S-0509 [2] CAP SCREW  
  5B-2200 [1] LOCK  
  6F-6973 [1] POINTER  
  7H-0919 [1] SHAFT  
  7H-0920 [1] SHAFT  
  2B-2994 [2] DOWEL  
  1F-8113 [16] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4206 [18] NUT  
  3B-4510 [18] LOCKWASHER  
  8F-9956 [1] SLINGER  
  8F-9960 [1] SEAL  
    (PARTS OF HOUSING ASSEM.)
  9F-0217 [1] HOUSING ASSEM.  
  3F-6808 [1] DOWEL  
  0L-2061 [1] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  1H-5894 [1] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2244 [2] SHIM  
  9F-2245 [6] SHIM  
    (PARTS OF CAP GROUP)
  1H-5893 [4] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2242 [8] SHIM  
    (2 IN EACH CAP GROUP 1H5893)
  9F-2243 [24] SHIM  
    (6 IN EACH CAP GROUP 1H5893)
  5B-7652 [5] DOWEL  
    (1 IN EACH GRP. 1H5893 & 1H5894)
  1H-4950 [2] PLATE  
  4B-4159 [8] SCREW (DRIVE)  
  6F-0234 [4] SUPPORT  
  4F-5046 [8] DOWEL  
  4F-5047 [8] STUD (15" LONG)  
  1F-2003 [4] STUD (14 1/4" LONG)  
  2A-4253 [12] NUT  
  7F-2002 [12] COTTER PIN  
    (PARTS OF BLOCK ASSEM.)
  1A-2036 [4] DOWEL  
  1F-3957 [48] STUD  
  1F-3958 [16] STUD  
  7F-6354 [1] PLATE (L.H.)  
  7F-6353 [1] PLATE (R.H.)  
  4B-4159 [6] SCREW (DRIVE)  
  0T-0643 [8] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  7H-0916 [1] BLOCK ASSEM.  
  0S-1588 [47] CAP SCREW  
  3B-4506 [48] LOCKWASHER  
  3B-1915 [1] BOLT  
  5B-5946 [2] PLUG  
  6B-9186 [2] GASKET  
  5F-9060 [2] DOWEL  
  3F-6795 [8] DOWEL  
  7H-0918 [1] SHAFT ASSEM.  
  3F-6795 [1] DOWEL  
    (PART OF ASSEM. 7H918)
  2B-8162 [2] DOWEL  
  7H-0917 [1] SHAFT ASSEM.  
  1L-5072 [1] DOWEL  
    (PART OF ASSEM. 7H917)
  5F-8649 [1] TUBE ASSEM.  
  0L-1351 [3] CAP SCREW  
  3B-0088 [1] LOCK (2 5/16" LONG)  
  0L-0364 [1] LOCK (1 1/16" LONG)  
  0L-0659 [4] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4203 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  9B-1988 [2] COVER  
  0L-1160 [2] GASKET  
 

#UE0324650055
 

CYLINDER BLOCK AND COVERS GROUP

CYLINDER BLOCK AND COVERS GROUP--Side View--Part 1 of 2
Effective with Serial No. 44B558
Additional parts are shown on Page 50B
c50850 UE032465
None CYLINDER BLOCK AND COVERS GROUP Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1177 [8] DOWEL  
  1F-6726 [1] TUBE  
  7F-5075 [1] BUSHING (4 1/18" LONG)  
  7F-5073 [4] BUSHING (2" LONG)  
  3B-0622 [2] PLUG  
  8F-4719 [2] STUD  
    (PARTS OF BLOCK ASSEM)
  7F-5074 [1] BUSHING  
  2A-3798 [2] DOWEL  
  4F-5982 [1] PLUG  
    (PARTS OF ASSEM. 9F217)
  7F-8029 [1] PLATE  
    (COUNTERCLOCKWISE ENGINE ROTATION)
    -OR-
  [1] PLATE  
    (CLOCKWISE ENGINE ROTATION)
  4B-4158 [2] SCREW (DRIVE)  
  0L-1351 [8] CAP SCREW  
  6F-6968 [2] COVER  
  6F-6969 [2] GASKET  
  1F-6727 [2] GASKET  
  0S-1594 [4] CAP SCREW  
  3B-4506 [12] LOCKWASHER  
  5F-9303 [2] COVER  
  1F-3131 [2] GASKET  
  2B-7556 [22] CORK  
  3B-0623 [2] PLUG  
    (PART OF HOUSING ASSEM.)
  0S-0509 [2] CAP SCREW  
  5B-2200 [1] LOCK  
  6F-6973 [1] POINTER  
  7H-0919 [1] SHAFT  
  7H-0920 [1] SHAFT  
  2B-2994 [2] DOWEL  
  1F-8113 [16] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4206 [18] NUT  
  3B-4510 [18] LOCKWASHER  
  8F-9956 [1] SLINGER  
  8F-9960 [1] SEAL  
    (PARTS OF HOUSING ASSEM.)
  9F-0217 [1] HOUSING ASSEM.  
  3F-6808 [1] DOWEL  
  0L-2061 [1] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  1H-5894 [1] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2244 [2] SHIM  
  9F-2245 [6] SHIM  
    (PARTS OF CAP GROUP)
  1H-5893 [4] CAP GROUP  
    (PART OF BLOCK ASSEM.)
  9F-2242 [8] SHIM  
    (2 IN EACH CAP GROUP 1H5893)
  9F-2243 [24] SHIM  
    (6 IN EACH CAP GROUP 1H5893)
  5B-7652 [5] DOWEL  
    (1 IN EACH GRP. 1H5893 & 1H5894)
  1H-4950 [2] PLATE  
  4B-4159 [8] SCREW (DRIVE)  
  6F-0234 [4] SUPPORT  
  4F-5046 [8] DOWEL  
  4F-5047 [8] STUD (15" LONG)  
  1F-2003 [4] STUD (14 1/4" LONG)  
  2A-4253 [12] NUT  
  7F-2002 [12] COTTER PIN  
    (PARTS OF BLOCK ASSEM.)
  1A-2036 [4] DOWEL  
  1F-3957 [48] STUD  
  1F-3958 [16] STUD  
  7F-6354 [1] PLATE (L.H.)  
  7F-6353 [1] PLATE (R.H.)  
  4B-4159 [6] SCREW (DRIVE)  
  0T-0643 [8] DOWEL  
    (PARTS OF BLOCK ASSEM.)
  7H-0916 [1] BLOCK ASSEM.  
  0S-1588 [47] CAP SCREW  
  3B-4506 [48] LOCKWASHER  
  3B-1915 [1] BOLT  
  5B-5946 [2] PLUG  
  6B-9186 [2] GASKET  
  5F-9060 [2] DOWEL  
  3F-6795 [8] DOWEL  
  7H-0918 [1] SHAFT ASSEM.  
  3F-6795 [1] DOWEL  
    (PART OF ASSEM. 7H918)
  2B-8162 [2] DOWEL  
  7H-0917 [1] SHAFT ASSEM.  
  1L-5072 [1] DOWEL  
    (PART OF ASSEM. 7H917)
  5F-8649 [1] TUBE ASSEM.  
  0L-1351 [3] CAP SCREW  
  3B-0088 [1] LOCK (2 5/16" LONG)  
  0L-0364 [1] LOCK (1 1/16" LONG)  
  0L-0659 [4] STUD  
    (PARTS OF BLOCK ASSEM.)
  1B-4203 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  9B-1988 [2] COVER  
  0L-1160 [2] GASKET  
 

#UE0324650056
 

CYLINDER BLOCK AND COVERS GROUP

CYLINDER BLOCK AND COVERS--End View--Part 2 of 2
Effective with Serial No. 44B558
Additional parts are shown on Page 50A
c50849 UE032465
None CYLINDER BLOCK AND COVERS GROUP Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-2029 [4] CAP SCREW (1 1/8" LONG)  
  0L-1351 [32] CAP SCREW (7/8" LONG)  
  4B-5167 [18] WASHER  
  3B-4506 [18] LOCKWASHER  
  0S-1619 [4] CAP SCREW  
  4B-5167 [4] WASHER  
  0T-0573 [4] CAP SCREW (2 3/4" LONG)  
  4B-5167 [4] WASHER  
  1F-4200 [4] COVER  
  1F-4419 [4] GASKET  
  7B-2126 [24] SEAL  
  8B-0375 [8] LINER  
  2B-6463 [8] GASKET  
  7F-7670 [4] COVER  
  7F-7669 [4] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  8F-0438 [1] SPREADER  
  8F-1601 [1] SPREADER  
  8F-0436 [1] SPREADER ASSEM. (REAR)  
    (NOT SHOWN)
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  1F-9223 [2] GASKET  
  0L-0827 [1] PLUG  
  0L-1124 [1] GASKET  
  1F-8068 [1] COVER ASSEM.  
  1F-8067 [1] GASKET (FRONT)  
  1F-8066 [2] GASKET (SIDE)  
  6F-5265 [1] GASKET (REAR)  
  3H-3838 [2] KNOB  
  [2] COVER  
  7B-3235 [12] CAP SCREW  
  3B-4508 [12] LOCKWASHER  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  1B-8633 [26] SHIM  
  7F-6026 [1] SUPPORT ASSEM.  
  0S-1594 [2] BOLT  
  1A-7427 [1] LOCK  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  7F-5174 [1] FLANGE  
  6F-7557 [1] GASKET  
  2B-7411 [1] PLUG  
  1F-4418 [4] COVER  
  1F-9223 [2] GASKET  
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  6B-7919 [2] COVER  
  1H-5903 [2] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
    (FOR USE ON 2L126 & 6H3256 ARR. ONLY)
 

#UE0324650057
 

CYLINDER BLOCK AND COVERS

CYLINDER BLOCK AND COVERS--Front View
Effective with Serial No. 44B519
c47467 UE032465
None CYLINDER BLOCK AND COVERS Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-2029 [4] CAP SCREW (1 1/8" LONG)  
  0L-1351 [32] CAP SCREW (7/8" LONG)  
  4B-5167 [18] WASHER  
  3B-4506 [18] LOCKWASHER  
  0S-1619 [4] CAP SCREW  
  4B-5167 [4] WASHER  
  0T-0573 [4] CAP SCREW (2 3/4" LONG)  
  4B-5167 [4] WASHER  
  7H-0932 [4] COVER  
  1F-4419 [4] GASKET  
    (FOR USE ON 2L126, 6H3256, 6H3236, 2L166, 6H3246, 2L176 & 2L5564 ARR.)
    - OR -
  1F-4200 [4] COVER  
    (FOR USE ON 2L5108, 2L6577 & 2L5109 ARR.)
  7B-2126 [24] SEAL  
  8B-0375 [8] LINER  
  2B-6463 [8] GASKET  
  7F-7670 [4] COVER  
  7F-7669 [4] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  8F-0438 [1] SPREADER  
  8F-1601 [1] SPREADER  
  8F-0436 [1] SPREADER ASSEM. (REAR)  
    (NOT SHOWN)
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  1F-9223 [2] GASKET  
  0L-0827 [1] PLUG  
  0L-1124 [1] GASKET  
  1F-8068 [1] COVER ASSEM.  
  1F-8067 [1] GASKET (FRONT)  
  1F-8066 [2] GASKET (SIDE)  
  6F-5265 [1] GASKET (REAR)  
  3H-3838 [2] KNOB  
  [2] COVER  
  7B-3235 [12] CAP SCREW  
  3B-4508 [12] LOCKWASHER  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  1B-8633 [26] SHIM  
  7F-6026 [1] SUPPORT ASSEM.  
  0S-1594 [2] BOLT  
  1A-7427 [1] LOCK  
  0S-1588 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  7F-5174 [1] FLANGE  
  6F-7557 [1] GASKET  
  2B-7411 [1] PLUG  
  1F-4418 [4] COVER  
  1F-9223 [2] GASKET  
  0S-0509 [32] CAP SCREW  
  3B-4506 [32] LOCKWASHER  
  6B-7919 [2] COVER  
  1H-5903 [2] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
    (FOR USE ON 2L126 & 6H3256 ARR. ONLY)
 

#UE0324650058
 

CRANKSHAFT

CRANKSHAFT
c43572 UE032465
None CRANKSHAFT Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1H-1542 [4] BEARING ASSEM.  
  1H-1543 [1] BEARING ASSEM.  
  8F-3518 [1] RING  
  8F-9959 [1] THROWER  
  1F-4481 [10] DOWEL  
    (2 IN EACH BEARING ASSEM)
  3B-5300 [8] COTTER PIN  
  2B-3172 [8] NUT  
  1F-9605 [8] PLUG  
    (PARTS OF CRANKSHAFT ASSEM.)
  9F-0824 [1] THROWER  
  8F-3518 [1] RING  
  6F-2793 [4] LOCK  
  1A-0075 [8] CAP SCREW  
  4F-5878 [8] BOLT  
    (PART OF CRANKSHAFT ASSEM.)
  5F-9785 [1] CRANKSHAFT ASSEM.  
 

#UE0324650059
 

FLYWHEEL

FLYWHEEL
Effective with Serial No. 44B575
c52011 UE032465
None FLYWHEEL Parts scheme
  For full view, you need register

Parts for your D375D MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1591 [12] CAP SCREW  
  8B-0656 [6] LOCK  
    (PARTS OF ASSEM. 2L1647, 2L5617 & 3L1084)
  4F-5880 [5] LOCK  
  2L-1647 [1] FLYWHEEL ASSEM.  
    (COUNTER-CLOCKWISE ENGINE ROTATION)
    -OR-
  2L-5617 [1] FLYWHEEL ASSEM.  
    (FOR USE ON 6H3256, 2L166 & 2L176 ARR.)
    -OR-
  3L-1084 [1] FLYWHEEL ASSEM.  
    (FOR USE ON 2L5564 ARR.)
  4F-5879 [10] CAP SCREW  
  7B-9644 [1] GEAR (176 T.)  
    (PART OF ASSEM. 2L1647)
  2L-2818 [1] GEAR (176 T.)  
    (PART OF ASSEM. 2L5617 & 3L1084)
 

Information:

Engine News
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
Special Instruction
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}
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}
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
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS

Caterpillar Parts SIS Catalog D375D :

CYLINDER HEAD ASSEMBLY
CYLINDER HEAD ASSEMBLY
EXHAUST MANIFOLD SHIELD
EXHAUST MANIFOLD SHIELD
MANIFOLDS
MANIFOLDS
MANIFOLD GROUP
6H-1988 MANIFOLD GROUP
MANIFOLDS
MANIFOLDS
MANIFOLDS
MANIFOLDS
MANIFOLDS
MANIFOLDS
MANIFOLD GROUP
6H-3084 MANIFOLD GROUP
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER HEAD AND VALVE MECHANISM
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS GROUP
CYLINDER BLOCK AND COVERS GROUP
CYLINDER BLOCK AND COVERS GROUP
CYLINDER BLOCK AND COVERS GROUP
CYLINDER BLOCK AND COVERS
CYLINDER BLOCK AND COVERS
CRANKSHAFT
CRANKSHAFT

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