BASIC ENGINE
PISTON & ROD GPPULLEY GP
DRIVE GP-FAN
BELT TIGHTENER GP
VALVE MECHANISM GP
LUBRICATION SYSTEM
FILTER GP-ENGINE OILBREATHER GP
FILTER GP-ENGINE OIL
LINES GP-ENGINE OIL
BASIC ENGINE
PISTON & ROD GP#SEBP52240080
296-4796: PISTON & ROD GP
296-4796 PISTON & ROD GP
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 324-4238 | [4] | PISTON (STANDARD) | |
| 324-4239 AB | PISTON (0.25-MM OS) | |||
| 324-4240 AB | PISTON (0.5-MM OS) | |||
| 2. | 094-7134 | [4] | PIN | |
| 3. | 5I-7667 | [8] | RING | |
| 4. | 178-6543 J | [4] | SET-PISTON RING (STANDARD) | |
| 178-6544 ABJ | SET-PISTON RING (0.25-MM OS) | |||
| 178-6545 ABJ | SET-PISTON RING (0.5-MM OS) | |||
| 5. | 551-1827 | [4] | ROD AS | |
| (EACH INCLUDES) | ||||
| 5A. | 094-7154 | [2] | BOLT (M12X1.25X85-MM) | |
| 5B. | 094-7516 | [2] | NUT (M12X1.25-THD) | |
| 5C. | 296-4663 | [1] | BUSHING | |
| 6. | 294-1748 | [8] | BEARING | |
| 297-7648 AB | BEARING (0.25-MM US) | |||
| 297-7649 AB | BEARING (0.50-MM US) | |||
| 297-7650 AB | BEARING (0.75-MM US) | |||
| A | NOT PART OF THIS GROUP | |||
| B | USE AS REQUIRED | |||
| J | INCLUDES COMPLETE SET OF RINGS FOR ONE PISTON | |||
#SEBP52240081
296-4738: PULLEY AS-IDLER
296-4738 PULLEY AS-IDLER
S/N TGY1-UP
PART OF 279-7779 PULLEY GP-FAN & ALT DRIVE
AN ATTACHMENT
S/N TGY1-UP
PART OF 279-7779 PULLEY GP-FAN & ALT DRIVE
AN ATTACHMENT
#SEBP52240082
279-7779: PULLEY GP-FAN & ALT DRIVE
279-7779 PULLEY GP-FAN & ALT DRIVE -WITH IDLER PULLEY
S/N TGY1-UP
PART OF 279-7809, 324-4021, 420-2165 ENGINE AR-COMPLETE
AN ATTACHMENT
S/N TGY1-UP
PART OF 279-7809, 324-4021, 420-2165 ENGINE AR-COMPLETE
AN ATTACHMENT
#SEBP52240083
305-4944: PULLEY GP-FAN & ALT DRIVE
305-4944 PULLEY GP-FAN & ALT DRIVE
S/N TGY1-UP
PART OF 420-2161 ENGINE AR, 279-7808, 324-3959, 324-4018, 324-4020 ENGINE AR-COMPLETE
AN ATTACHMENT
S/N TGY1-UP
PART OF 420-2161 ENGINE AR, 279-7808, 324-3959, 324-4018, 324-4020 ENGINE AR-COMPLETE
AN ATTACHMENT
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS#SEBP52240084
255-3018: PULLEY GP-IDLER
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS#SEBP52240085
305-4954: VALVE MECHANISM GP
305-4954 VALVE MECHANISM GP
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 294-1684 | [8] | VALVE-INLET | |
| 2. | 294-1685 | [8] | VALVE-EXHAUST | |
| 3. | 294-1686 | [4] | BASE-ROCKER ARM | |
| 4. | 294-1687 | [4] | BRIDGE-EXHAUST | |
| 5. | 5I-7630 | [8] | CAP | |
| 6. | 294-1688 | [16] | SPRING | |
| 7. | 294-1689 | [8] | SCREW | |
| 8. | 8T-7964 M | [8] | NUT (M6X1-THD) | |
| 9. | 199-2188 | [32] | PIN-COTTER | |
| 10. | 199-2189 | [16] | SEAL-VALVE STEM | |
| 11. | 199-2187 | [16] | RETAINER | |
| 12. | 305-4750 | [4] | BRACKET | |
| 13. | 305-4751 | [3] | SPRING | |
| 14. | 294-1693 | [1] | PIPE | |
| 15. | 305-4931 | [1] | SHAFT AS-ROCKER ARM | |
| 096-3741 | [1] | CAP | ||
| 16. | 305-4929 | [4] | ROCKER ARM AS | |
| (EACH INCLUDES) | ||||
| 091-3474 M | [1] | NUT (M8X1.25-THD) | ||
| 094-9525 | [1] | SCREW | ||
| 17. | 305-4927 | [4] | ROCKER ARM AS | |
| (EACH INCLUDES) | ||||
| 091-3474 M | [1] | NUT (M8X1.25-THD) | ||
| 094-9525 | [1] | SCREW | ||
| 18. | 294-1698 | [2] | WASHER | |
| 19. | 294-1699 | [4] | BOLT | |
| 20. | 305-4746 | [4] | BOLT | |
| 21. | 294-1786 | [2] | RING | |
| 22. | 294-1702 | [1] | BOLT | |
| 23. | 3B-4505 | [4] | LOCKWASHER | |
| 24. | 305-4747 | [4] | WASHER | |
| M | METRIC PART | |||
#SEBP52240086
296-4792: ADAPTER GP-REMOTE OIL FILTER
296-4792 ADAPTER GP-REMOTE OIL FILTER -ENGINE
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 5I-7864 | [1] | GASKET | |
| 2. | 296-4728 | [1] | COVER AS | |
| 2A. | 185-2793 | [2] | ELBOW | |
| 2B. | 296-4729 | [1] | COVER | |
| 2C. | 305-4892 | [2] | SEAL-O-RING | |
| 3. | 5B-5947 | [1] | GASKET | |
| 4. | 5I-8066 | [1] | VALVE AS-RELIEF (ENGINE OIL PRESSURE) | |
| 5. | 294-1726 M | [3] | BOLT (M10X1.5X37-MM) | |
| 6. | 095-8575 | [2] | BOLT AS | |
| M | METRIC PART | |||
#SEBP52240087
310-9546: BREATHER GP
310-9546 BREATHER GP -CRANKCASE
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS#SEBP52240088
310-9560: FILTER & MTG GP-ENGINE OIL
310-9560 FILTER & MTG GP-ENGINE OIL
S/N TGY1-UP
PART OF 279-7795 INSTALLATION AR-ENGINE
S/N TGY1-UP
PART OF 279-7795 INSTALLATION AR-ENGINE
Parts for your 312D L EXCAVATOR:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 7C-1493 | [1] | VALVE AS-BYPASS | |
| 2. | 7W-9028 | [1] | BASE AS-OIL FILTER | |
| 2P-2537 | [1] | STUD-HOLLOW | ||
| 3. | 8C-3445 | [1] | CAP-DUST | |
| 4. | 9L-9188 | [1] | SPRING-VALVE | |
| 5. | 121-0307 | [1] | BASE | |
| 6. | 152-2938 | [3] | SEAL-O-RING | |
| 7. | 152-2939 | [1] | SEAL-O-RING | |
| 8. | 296-4804 | [1] | SUPPORT AS | |
| 9. | 310-9561 | [1] | HOSE AS | |
| 10. | 310-9562 | [1] | HOSE AS | |
| 11. | 033-5853 | [1] | SEAL-O-RING | |
| 12. | 033-6038 | [1] | SEAL-O-RING | |
| 13. | 153-4906 | [1] | SEAL-O-RING | |
| 14. | 189-9377 | [1] | SEAL-O-RING | |
| 15. | 1R-0739 | [1] | FILTER AS-ENGINE OIL (STANDARD EFFICIENCY) | |
| 16. | 228-7092 | [3] | SEAL-O-RING | |
| 17. | 2T-2991 | [1] | CONNECTOR | |
| 18. | 5P-8196 M | [1] | PLUG | |
| 19. | 6D-1641 | [4] | CLIP (LOOP) | |
| 20. | 6V-1903 | [1] | SEAL-O-RING | |
| 21. | 6V-5266 | [3] | SEAL-O-RING | |
| 22. | 6V-8943 | [1] | REDUCER | |
| 23. | 6V-9007 | [1] | ELBOW | |
| 24. | 6V-9853 | [1] | ELBOW | |
| 25. | 8C-3446 | [1] | VALVE-SAMPLING | |
| 26. | 8C-6712 | [1] | ELBOW | |
| 27. | 8T-4121 | [9] | WASHER-HARD (11X21X2.5-MM THK) | |
| 28. | 8T-4136 M | [4] | BOLT (M10X1.5X25-MM) | |
| 29. | 8T-4137 M | [2] | BOLT (M10X1.5X20-MM) | |
| 30. | 8T-4196 M | [3] | BOLT (M10X1.5X35-MM) | |
| 31. | 8T-4197 M | [3] | BOLT (M8X1.25X40-MM) | |
| 32. | 8T-4224 | [5] | WASHER-HARD (8.8X16X2-MM THK) | |
| 33. | 8T-7547 M | [2] | BOLT (M8X1.25X30-MM) | |
| 34. | 9S-4188 | [1] | PLUG | |
| M | METRIC PART | |||
#SEBP52240089
296-4781: LINES GP-ENGINE OIL
296-4781 LINES GP-ENGINE OIL
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
PART OF 279-7813, 279-7814, 420-2179 ENGINE AR, 420-2177 ENGINE AR-COMPLETE
ALSO AN ATTACHMENT
Information:
BASIC ENGINE
PISTON & ROD GP
Special Instruction
Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}
Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}
Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}
Technical Information Bulletin
Testing and Adjusting
Disassembly and Assembly



