BASIC ENGINE
BALANCER GPCAMSHAFT GP
BALANCER GP
CYLINDER HEAD GP
LIFTING GP-ENGINE
CYLINDER HEAD GP
LIFTING GP-ENGINE
CYLINDER HEAD GP
LIFTING GP-ENGINE
VALVE MECHANISM GP
BASIC ENGINE
BALANCER GP#SEBP12710030
5S-6425: BALANCER GP
5S6425 BALANCER GP
ENGINE S/N 7Z1-6687
ENGINE S/N 7Z1-6687
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 5M-2894 C | [4] | WASHER | |
| 2. | 4S-6417 | [2] | PLATE-THRUST | |
| 3. | 4N-7977 C | [1] | SHAFT AS-BALANCE (RH) | |
| 4N-7978 | [1] | SHAFT AS-BALANCE (LH) | ||
| (20 TEETH) | ||||
| (EA SHAFT AS INCL) | ||||
| 4N-7976 C | [1] | SHAFT-BALANCE | ||
| 4H-9699 C | [1] | KEY-WOODRUFF | ||
| 4. | 0S-1594 | [4] | BOLT | |
| 1N-8354 | [2] | LOCK | ||
| -OR- | ||||
| 030-8535 C | [4] | BOLT-SELF LOCKING | ||
| C | CHANGE FROM PREVIOUS TYPE | |||
#SEBP12710031
1N-4436: CAMSHAFT GP-SINGLE
1N4436 CAMSHAFT GP
ENGINE S/N 7Z6688-UP
ENGINE S/N 7Z6688-UP
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS#SEBP12710032
1W-2872: BALANCER GP
1W2872 BALANCER GP
ENGINE S/N 7Z6688-UP
ENGINE S/N 7Z6688-UP
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 1W-2871 | [1] | SHAFT AS-BALANCE (RH-20 TEETH) | |
| 1W-2870 | [1] | SHAFT AS-BALANCE (LH-20 TEETH) | ||
| (EACH INCLUDES) | ||||
| 2. | 4H-9699 | [1] | KEY-WOODRUFF | |
| 3. | 0S-1594 | [4] | BOLT (2.54CM LG) | |
| 1N-8354 | [2] | LOCK | ||
| -OR- | ||||
| 030-8535 C | [4] | BOLT-SELF LOCKING (2.22CM LG) | ||
| 5M-2894 C | [4] | WASHER | ||
| 4. | 4S-6417 | [2] | PLATE-THRUST | |
| C | CHANGE FROM PREVIOUS TYPE | |||
#SEBP12710033
7N-8874: CYLINDER HEAD GP
7N8874 CYLINDER HEAD GP*R
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 2A-4429 | [16] | LOCK-RETAINER | |
| 2. | 7N-8018 | [4] | SEAL-WATER | |
| 3. | 7S-7144 | [8] | SPRING-VALVE | |
| 4. | 6N-9915 | [4] | VALVE-INLET | |
| 5. | 6N-9916 | [4] | VALVE-EXHAUST | |
| 6. | 4P-8915 C | [1] | GASKET-CYLINDER HEAD | |
| 7. | 3S-5496 | [1] | SEAL-O-RING | |
| 8. | 9Y-1798 C | [12] | SEAL-WATER | |
| 9. | 1N-4304 R | [1] | CYLINDER HEAD GP | |
| 10. | 2P-1262 | [8] | GUIDE-VALVE | |
| 11. | 3S-8313 C | [4] | PLUG-CUP | |
| 12. | 8T-6763 | [1] | PLUG | |
| 13. | 0S-1594 | [4] | BOLT | |
| 14. | 5M-2894 | [4] | WASHER | |
| 15. | 1P-6367 | [1] | COVER | |
| 16. | 5S-6735 | [1] | GASKET | |
| 17. | 8T-6762 | [3] | PLUG-PIPE | |
| 18. | 3B-0623 | [4] | PLUG-CUP | |
| 19. | 8N-4485 C | [1] | VALVE AS | |
| 20. | 2W-4837 C | [4] | INSERT (EXHAUST) | |
| 21. | 7N-4448 | [4] | INSERT (INTAKE) | |
| 22. | 3P-1896 | [9] | PLUG-CUP | |
| 23. | 1W-5300 C | [8] | ROTOCOIL AS | |
| (EACH INCLUDES) | ||||
| 8N-7782 | [1] | ROTOCOIL AS | ||
| 24. | 6N-7174 C | [1] | SHIELD-OIL | |
| C | CHANGE FROM PREVIOUS TYPE | |||
| R | REMFG PART MAY BE AVAILABLE | |||
#SEBP12710034
7N-9122: LIFTING GP
7N9122 ENGINE LIFTING GP
ENGINE S/N 7Z1-927
ENGINE S/N 7Z1-927
#SEBP12710035
7N-9534: FASTENER GP-CYLINDER HEAD
7N9534 CYLINDER HEAD FASTENER GROUP
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS#SEBP12710036
1W-5567: LIFTING GP
1W5567 LIFTING GP-ENGINE
ENGINE S/N 7Z928-1838
ENGINE S/N 7Z928-1838
#SEBP12710037
2P-6530: COVER GP-CYLINDER HEAD
2P6530 COVER GP-CYLINDER HEAD
#SEBP12710038
7N-9122: LIFTING GP
7N9122 ENGINE LIFTING GP
ENGINE S/N 7Z1839-UP
ENGINE S/N 7Z1839-UP
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS#SEBP12710039
7N-8024: VALVE MECHANISM GP
7N8024 VALVE MECHANISM GP
TYPE 1
TYPE 1
Parts for your 120G MOTOR GRADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8N-3313 C | [1] | SHAFT ASSEM. | |
| (Includes) | ||||
| 0L-1026 | [2] | PLUG | ||
| 2. | 7N-8015 | [1] | BRACKET | |
| 5M-4606 | [1] | DOWEL | ||
| 3. | 1B-7709 | [1] | BOLT | |
| 2S-0736 | [1] | WASHER | ||
| 4. | 5P-5598 | [1] | SEAL | |
| 5. | 4B-4910 | [3] | SPRING | |
| 6. | 9H-1110 | [8] | WASHER | |
| 7. | 5S-5879 | [2] | BRACKET | |
| 8. | 8N-3324 C | [4] | ARM ASSEM. (exhaust) | |
| 9. | 8N-3326 C | [4] | ARM ASSEM. (intake) | |
| 10. | 1B-4203 | [8] | NUT | |
| 11. | 5S-5917 | [8] | SCREW | |
| 12. | 8S-1499 | [1] | BRACKET ASSEM. | |
| (Includes) | ||||
| 1L-5072 | [1] | DOWEL | ||
| 13. | 9M-9886 H | [2] | WASHER | |
| 9H-1112 | [2] | SPRING | ||
| 14. | 9H-1113 | [2] | RING | |
| 15. | 5S-5918 | [8] | ROD | |
| 16. | 7S-3161 | [8] | LIFTER | |
| C | INDICATES CHANGE | |||
| H | USE AS REQUIRED | |||
Information:
BASIC ENGINE
BALANCER GP
Disassembly and Assembly
Engine Balancer Shaft Bearings - Remove and Install
3304B and 3306B Engines for Caterpillar Built Machines
3304B and 3306B Engines for Caterpillar Built Machines


