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5L1498 OIL PRESSURE AND OVERSPEED HOUSING GROUP--Part 2 of 2 Part of 4L6121 Oil Pressure and Overspeed Shut-Off Group shown on Page 71 D343




ELECTRICAL AND STARTING SYSTEM

SHUTOFF GP
 

#UE0339920220
 

5L-1498: SHUT-OFF GP

5L1498 OIL PRESSURE AND OVERSPEED HOUSING GROUP--Part 2 of 2
Part of 4L6121 Oil Pressure and Overspeed Shut-Off Group shown on Page 71
c931990 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5L-4207 [1] SPACER  
    (PART OF HOUSING ASSEM. 4L9903)
  2L-3728 [1] GEAR (60 T.)  
  3H-3433 [1] PIN (SPRING)  
  3L-5767 [1] GASKET  
  2H-0191 [4] BOLT  
  3B-4502 [4] LOCKWASHER  
  4B-1283 [2] SCREW  
  3L-1744 [1] GASKET  
  2H-3903 [1] SCREW  
  5L-3616 [1] SPACER  
  2L-7996 [1] SPRING  
  2L-5203 [1] BUSHING  
    (PART OF HOUSING ASSEM. 4L9903)
  4F-9325 [1] GASKET  
  2L-6261 [1] PLUG  
  3L-3961 [1] BUSHING  
    (PART OF HOUSING ASSEM. 4L9903)
  3L-8678 [1] ADAPTER ASSEM.  
  3H-3433 [1] PIN (SPRING)  
  2L-4369 [1] SLIDE ASSEM.  
  2L-4403 [1] SPRING  
  2L-4365 [1] DOWEL  
    (PARTS OF HOUSING ASSEM. 4L9903)
  2L-3463 [1] RING  
  4L-1580 [2] BUSHING  
    (PARTS OF ADAPTER ASSEM. 3L8678)
  [1] GASKET  
  4L-9903 [1] HOUSING ASSEM.  
  9F-0812 [1] DOWEL  
    (PART OF SLIDE ASSEM. 2L4369)
  2L-4557 [1] SPRING  
  2L-4727 [1] ROD ASSEM.  
  2L-4367 [2] PIN  
    (PART OF HOUSING ASSEM. 4L9903)
  2L-3474 [1] COLLAR  
  2K-3455 [1] PIN (SPRING)  
    (PARTS OF ROD ASSEM. 2L4727)
  2L-4725 [1] LATCH  
  3L-3076 [1] SPRING  
  2H-5001 [1] RING  
  1A-8912 [1] WASHER  
  2L-3465 [1] PLUG  
  [1] GASKET  
  2B-1561 [1] LOCK  
  3L-3065 [1] NUT  
 

#UE0339920221
 

6L-3923: OIL PRESSURE AND OVERSPEED HOUSING GROUP

6L3923 OIL PRESSURE AND OVERSPEED HOUSING GROUP--Part 1 of 2
Part of 6L3922 Oil Pressure and Overspeed Shut-Off Group shown on Page 70A
c121888 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6L-3892 [1] GEAR ASSEM.  
  6L-3893 [1] GEAR (42 TEETH)  
  2L-3727 [1] GEAR (48 TEETH)  
  7L-4993 [2] DOWEL  
  6F-9091 [1] WASHER  
  4L-5692 [1] BUSHING  
  5B-3850 [1] WASHER  
  2H-3429 [1] RING  
  4B-5355 [2] WASHER  
  3B-4604 [2] COTTER PIN  
  1A-2169 [2] SPRING  
  2L-4368 [1] GUIDE  
  9M-6803 [1] DOWEL  
    (PART OF PISTON ASSEM. 2L4729)
  2L-4729 [1] PISTON ASSEM.  
  2L-3467 [1] WEIGHT  
  3H-1118 [1] PIN (SPRING)  
  4L-0895 [1] PLUNGER  
  1A-0654 [1] SPRING  
  8M-5250 [2] SEAL  
  5L-1091 [1] SPRING  
  3L-3964 [1] PLUNGER  
  3L-3967 [1] BUTTON  
  3H-1394 [1] SCREW  
  3L-3966 [1] PIN  
    ONLY ONE OF THE FOLLOWING SPRINGS IS REQUIRED:
  6L-3890 [1] SPRING  
    (1770-2006 R.P.M.)
  6L-3891 [1] SPRING  
    (2124-2360 R.P.M.)
  2L-3468 [1] SCREW  
  2L-3409 [1] NUT  
  3L-3962 [1] CARRIER ASSEM.  
  2L-3725 [1] GEAR (24 TEETH)  
    (PART OF CARRIER ASSEM. 3L3962)
  3B-8995 [1] FITTING  
  1F-1344 [1] NUT  
    (PART OF FITTING 3B8995)
  1K-6663 [1] BUSHING  
  8B-4128 [1] COVER  
  6B-8241 [1] GASKET  
  1H-8293 [2] SCREW  
    (USED WITHOUT TACHOMETER DRIVE)
  4L-9516 [1] COVER  
  4L-9514 [1] GASKET  
  2B-7409 [1] PLUG  
    (USED WITHOUT WATER TEMPERATURE SHUT-OFF)
  2B-2694 [1] BOLT  
  3B-4505 [1] LOCKWASHER  
  8F-6223 [1] PLUG  
  6B-0387 [1] GASKET  
 

#UE0339920222
 

6L-3923: OIL PRESSURE AND OVERSPEED HOUSING GROUP

6L3923 OIL PRESSURE AND OVERSPEED HOUSING GROUP--Part 2 of 2
Part of 6L3922 Oil Pressure and Overspeed Shut-Off Group shown on Page 70A
c121889 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-3433 [1] PIN (SPRING)  
  3L-5767 [1] GASKET  
  2H-0191 [4] BOLT  
  3B-4502 [4] LOCKWASHER  
  6L-3894 [1] GEAR (48 TEETH)  
  4B-1283 [2] SCREW  
  3L-1744 [1] GASKET  
  2H-3903 [1] SCREW  
  5L-3616 [1] SPACER  
  2L-7996 [1] SPRING  
  2L-5203 [1] BUSHING  
    (PART OF HOUSING ASSEM. 4L9903)
  4F-9325 [1] GASKET  
  2L-6261 [1] PLUG  
  3L-3961 [1] BUSHING  
    (PART OF HOUSING ASSEM. 4L9903)
  3L-8677 [1] ADAPTER  
  3H-3433 [1] PIN (SPRING)  
  [1] SPACER  
    (PART OF SLIDE ASSEM. 6L7211)
  6L-7211 [1] SLIDE ASSEM.  
  2L-4403 [1] SPRING  
  2L-4365 [1] DOWEL  
    (PARTS OF HOUSING ASSEM. 4L9903)
  [1] GASKET  
  4L-9903 [1] HOUSING ASSEM.  
  2L-4727 [1] ROD ASSEM.  
  [1] PIN  
    (PART OF ROD ASSEM. 2L4727)
  5L-5387 [1] SPRING  
  2L-4367 [2] PIN  
    (PART OF HOUSING ASSEM. 4L9903)
  2L-4725 [1] LATCH  
  3L-3076 [1] SPRING  
  2H-5001 [1] RING  
  1A-8912 [1] WASHER  
  2L-3465 [1] PLUG  
  [1] GASKET  
  6L-3918 [1] LOCK  
  3L-3065 [1] NUT  
 

#UE0339920223
 

4L-5793: RADIATOR GROUP

4L5793 RADIATOR GROUP
4L4673 Radiator parts are shown on Page 76. Refer to Page 69 for usage
c84185 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3B-1915 [1] BOLT  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  2B-2694 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  1D-4716 [4] NUT  
  4L-4673 Y [1] RADIATOR ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  4L-9178 [1] BRACE  
  2L-7018 [4] PAD  
  1D-4706 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  2H-3755 [20] BOLT  
  3B-4505 [20] LOCKWASHER  
  4B-5270 [20] WASHER  
  4L-4711 [2] GUARD ASSEM.  
  4L-3864 [1] ELBOW  
  4L-4642 [1] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0T-0319 [4] BOLT  
  1D-4718 [4] NUT  
  3B-4507 [4] LOCKWASHER  
  1C-1976 [4] WASHER (.4375" DIA.)  
  4B-1040 [4] WASHER (.75" DIA.)  
  4L-4448 [4] ISOLATOR  
  4L-5754 [1] SUPPORT (L.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  2B-7411 [1] PLUG  
  2B-7411 [1] PLUG  
  1L-2927 [1] HOSE  
  5H-4454 [2] CLAMP  
  5H-4450 [2] CLAMP  
  1L-6339 [1] HOSE  
  3B-1915 [1] BOLT  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  4L-7516 [2] PLATE  
  2B-0941 [4] SPACER  
  4L-9179 [1] BRACE  
  2L-7018 [4] PAD  
  0S-1590 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4B-5271 [1] WASHER  
  0S-0509 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4L-5757 [2] STRAP  
  4L-5734 [1] GUARD  
  0S-0509 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  3F-1417 [8] WASHER  
  5L-1707 [1] COVER  
  4L-4642 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  7F-5227 [4] BOLT (3.75" LONG)  
    (FRONT ENGINE SUPPORT)
  1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
  4L-5753 [1] SUPPORT (R.H.)  
  0S-1587 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UE0339920224
 

4L-5794: RADIATOR GROUP

4L5794 RADIATOR GROUP--High Capacity
4L4638 Radiator parts are shown on Page 77. Refer to Page 69 for usage
c92795 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-4638 Y [1] RADIATOR ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  3L-2415 [1] BOLT  
  1B-4205 [1] NUT  
  3B-4508 [1] LOCKWASHER  
  4B-5273 [3] WASHER  
  2L-1607 [1] BLOCK  
  4B-9883 [2] BOLT  
  1B-4202 [2] NUT  
  3B-4505 [2] LOCKWASHER  
  4L-9181 [1] BRACE  
  0S-0509 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4L-5757 [2] STRAP  
  2H-3755 [11] BOLT  
  3B-4505 [11] LOCKWASHER  
  4B-5270 [11] WASHER  
  4L-4730 [1] GUARD ASSEM. (LEFT HAND)  
  2J-1737 [2] CLAMP  
  4L-4641 [1] TUBE ASSEM.  
  1H-7666 [1] GASKET  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  0S-1627 [2] BOLT (4.50" LONG)  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  0S-1587 [2] BOLT (1.75" LONG)  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  4L-5770 [1] SUPPORT ASSEM. (LEFT HAND)  
  0L-1178 [4] BOLT (1.75" LONG)  
  1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
  4B-4283 [8] WASHER  
  1L-7583 [1] CAP  
  4L-7809 [1] CONNECTOR  
  1B-5174 [1] PLUG  
  1L-2927 [1] HOSE  
  2J-1737 [2] CLAMP  
  4L-5780 [1] HOSE  
  3L-2415 [1] BOLT  
  1B-4205 [1] NUT  
  3B-4508 [1] LOCKWASHER  
  4B-5273 [3] WASHER  
  2L-1607 [1] BLOCK  
  4B-9883 [2] BOLT  
  1B-4202 [2] NUT  
  3B-4505 [2] LOCKWASHER  
  4L-9180 [1] BRACE  
  5L-2890 [1] ELBOW  
  4L-4729 [1] GUARD ASSEM. (RIGHT HAND)  
  3B-1915 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  4L-3804 [1] GASKET  
  0L-1351 [3] BOLT  
  3B-4506 [3] LOCKWASHER  
  [1] TUBE  
  8B-6127 [3] CLIP  
  2H-3755 [11] BOLT  
  3B-4505 [11] LOCKWASHER  
  4B-5270 [11] WASHER  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5L-1707 [1] COVER  
  0S-1627 [2] BOLT (4.50" LONG)  
  1B-4331 [2] NUT  
  3B-4512 [2] LOCKWASHER  
  4L-4642 [1] GASKET  
  4L-5769 [1] SUPPORT ASSEM. (RIGHT HAND)  
  0S-1587 [2] BOLT (1.75" LONG)  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UE0339920225
 

4L-4673: RADIATOR ASSEMBLY

4L4673 RADIATOR ASSEMBLY
Part of 4L5793 Radiator Group shown on Page 74
c70607 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3L-5151 [1] CONNECTOR  
  4L-4680 [1] TANK ASSEM.  
  4L-4685 [4] WASHER (CORE)  
  0S-1618 [72] BOLT (1" LONG)  
  1D-4716 [72] NUT  
  3B-4505 [72] LOCKWASHER  
  4L-4681 [2] MOUNTING STRIP ASSEM.  
  0S-1617 [10] BOLT  
  3B-4505 [10] LOCKWASHER  
  4L-4679 [1] TUBE  
  3L-1749 [2] CLIP  
  4L-4682 [2] MOUNTING STRIP ASSEM.  
  4L-4688 [1] TANK ASSEM.  
  3L-3368 [1] CAP  
  1B-7182 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  4L-4683 [4] CLIP  
  4L-4687 [1] CORE ASSEM.  
  1B-2578 [2] NUT  
  3L-5148 [2] SCREW  
  4L-4686 [2] SIDE ASSEM.  
  3L-1762 [5] GASKET  
  1B-7182 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  0S-1617 [12] BOLT  
  3B-4505 [12] LOCKWASHER  
 

#UE0339920226
 

4L-4638: RADIATOR ASSEMBLY

4L4638 RADIATOR ASSEMBLY
Part of 4L5794 Radiator Group shown on Page 75
c931991 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5L-4382 [1] SIDE ASSEM. (L.H.)  
  4L-4672 [1] TANK  
  1B-2719 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  4B-3388 [90] BOLT  
  1D-4716 [90] NUT  
  3B-4505 [90] LOCKWASHER  
  4L-0634 [8] CLIP  
  4L-7373 [1] GUARD  
  4L-7375 [2] BRACE (R.H.)  
  4L-7374 [2] BRACE (L.H.)  
  5L-4383 [1] SIDE ASSEM. (R.H.)  
  2B-2694 [52] BOLT  
  1D-4716 [52] NUT  
  3B-4505 [52] LOCKWASHER  
  5L-2984 [8] WASHER  
  4L-7371 [1] TANK  
  4L-7370 [8] WASHER  
  3L-1762 [12] GASKET  
  2B-2695 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  4L-4669 [2] MOUNTING STRIP ASSEM.  
  4L-4670 [2] MOUNTING STRIP ASSEM.  
  2B-2695 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
  4L-4671 [1] TANK  
  1C-0569 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  3L-5088 [8] CLIP  
  0S-1616 [18] BOLT  
  1B-4330 [18] NUT  
  3B-4504 [18] LOCKWASHER  
  0S-1617 [10] BOLT  
  1D-4716 [10] NUT  
  3B-4505 [10] LOCKWASHER  
  2B-2695 [8] BOLT  
  1D-4716 [8] NUT  
  3B-4505 [8] LOCKWASHER  
  0S-1620 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  4B-3643 [4] SCREW  
  1B-2578 [4] NUT  
  5L-4384 [2] CORE ASSEM.  
  0S-1621 [16] BOLT  
  3B-4508 [16] LOCKWASHER  
 

#UE0339920227
 

4L-3801: BLOWER FAN AND DRIVE GROUP

4L3801 BLOWER FAN AND DRIVE GROUP--33 inch--6 Blade
Refer to Page 69 for usage
c62365 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-6799 [1] RING  
  3H-4192 [2] RING  
  4L-3793 [2] BEARING  
  1L-6288 [1] SHIELD  
    (PART OF SHAFT ASSEM 4L3857)
  3H-7928 [1] BOLT  
  4L-3844 [1] PLATE ASSEM.  
  4B-4280 [4] WASHER  
  3B-4508 [4] LOCKWASHER  
  [4] BOLT  
  4L-3857 [1] SHAFT ASSEM.  
  4L-4602 [1] PULLEY  
  4L-3790 [1] GASKET  
  0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4L-4648 [2] VEE BELT  
  1D-4719 [6] NUT  
  3B-4508 [6] LOCKWASHER  
  4L-3794 [1] HUB  
  0S-1587 [6] BOLT  
  6H-5536 [1] SPIDER ASSEM.  
 

#UE0339920228
 

4L-3798: BLOWER FAN AND DRIVE GROUP

4L3798 BLOWER FAN AND DRIVE GROUP--40 inch--8 Blade
Refer to Page 69 for usage
c203796 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-6799 [1] RING  
  3H-4192 [2] RING  
  4L-3793 [2] BEARING  
  3H-7928 [1] BOLT  
  1L-6288 [1] SHIELD  
    (PART OF SHAFT ASSEM. 4L3857)
  4L-3844 [1] PLATE ASSEM.  
  4B-4280 [4] WASHER  
  3B-4508 [4] LOCKWASHER  
  0S-1587 [4] BOLT  
  4L-3857 [1] SHAFT ASSEM.  
  4L-3784 [1] PULLEY  
  4L-3790 [1] GASKET  
  0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4L-4649 [3] VEE BELT  
  5L-8031 C [1] SPIDER ASSEM.  
  1D-4719 [6] NUT  
  3B-4508 [6] LOCKWASHER  
  0S-1587 [6] BOLT  
  4L-3788 [1] HUB  
  C   INDICATES CHANGE
 

#UE0339920229
 

4L-3799: SUCTION FAN AND DRIVE GROUP

4L3799 SUCTION FAN AND DRIVE GROUP--33 inch--6 Blade
Refer to Page 69 for usage
c62366 UE033992
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Parts for your D343 INDUSTRIAL ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-6799 [1] RING  
  3H-4192 [2] RING  
  4L-3793 [2] BEARING  
  1L-6288 [1] SHIELD  
    (PART OF SHAFT ASSEM. 4l3857)
  3H-7928 [1] BOLT  
  4L-3844 [1] PLATE ASSEM.  
  4B-4280 [4] WASHER  
  3B-4508 [4] LOCKWASHER  
  0S-1587 [4] BOLT  
  4L-3857 [1] SHAFT ASSEM.  
  4L-3790 [1] GASKET  
  4L-4602 [1] PULLEY  
  0S-1594 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
  4L-4648 [2] VEE BELT  
  1D-4719 [6] NUT  
  3B-4508 [6] LOCKWASHER  
  2H-8613 [1] SPACER  
  3H-2168 [3] RIVET  
    (PARTS OF SPIDER ASSEM 6H5539)
  4L-3794 [1] HUB  
  0L-1329 [6] BOLT  
  6H-5539 [1] SPIDER ASSEM.  
 

Caterpillar Parts SIS Catalog D343 :

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