HYDRAULIC SYSTEM
VALVE GP-CONTROLVALVE GP-PRIORITY
VALVE GP-CHECK
BRAKING SYSTEM
VALVE GPHYDRAULIC SYSTEM
VALVE GP-CONTROLMANIFOLD GP
VALVE GP-RELIEF
VALVE GP-CHECK
HYDRAULIC SYSTEM
VALVE GP-CONTROL#SEBP18360250
9T-1546: VALVE GP-CONTROL
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8F-6302 | [2] | BOLT (1/4-20X3.75IN) | |
| 2. | 5P-0537 | [2] | WASHER (2MM THK) | |
| 3. | 4T-4532 | [1] | HOUSING | |
| 4. | 9T-7305 | [1] | GASKET | |
| 5. | 5L-9023 | [1] | RING-RETAINING | |
| 6. | 9T-0644 | [1] | SPRING | |
| 7. | 9T-7309 | [1] | PLATE | |
| 8. | 9T-0642 | [1] | COUPLING | |
| 9. | 9T-7304 | [1] | SOLENOID AS | |
| 7N-9737 | [1] | HOUSING-PLUG | ||
| 7N-7780 | [1] | PIN-CONNECTOR | ||
| 7N-7779 | [1] | SOCKET | ||
| 1S-9593 | [2] | STRAP-CABLE | ||
| 10. | 4T-4521 | [2] | RETAINER | |
| 11. | 4T-4516 | [1] | SPRING | |
| 12. | 8F-0212 | [1] | SEAL-O-RING | |
| 13. | 7F-8607 | [2] | SEAL-O-RING | |
| 14. | 9T-0704 | [2] | VALVE GP-RELIEF | |
| (EACH INCLUDES) | ||||
| 15. | 4K-1388 | [1] | SEAL-O-RING (26.59MM ID) | |
| 16. | 4T-7795 | [1] | RING-BACK-UP | |
| 17. | 8C-3088 | [1] | SEAL-O-RING (23.52MM ID) | |
| 18. | 031-0214 | [2] | BOLT-SELF LOCKING | |
| 19. | 4T-4528 | [1] | RETAINER | |
| 20. | 4T-4524 | [1] | GUARD-DUST | |
| 21. | 4T-4520 | [1] | FILTER | |
| 22. | 9S-8006 | [1] | PLUG-O-RING | |
| 23. | 2M-9780 | [1] | SEAL-O-RING | |
| 24. | 4T-4534 | [1] | SPRING | |
| 25. | 9T-3729 | [1] | SPRING | |
| 26. | 4T-4526 | [1] | SEAT | |
| 27. | 8T-2360 | [1] | SEAL-O-RING | |
| 28. | 7J-0204 | [1] | SEAL-O-RING | |
| 29. | 5B-9318 | [1] | BALL | |
| 30. | 8T-2361 | [1] | SEAL-O-RING | |
| 31. | 1P-7363 | [1] | SEAL-O-RING | |
| 32. | 3J-7354 | [1] | SEAL-O-RING | |
| 33. | 4T-4525 | [1] | VALVE-RESOLVER | |
| 34. | 4J-7533 | [1] | SEAL-O-RING | |
#SEBP18360251
9T-1547: VALVE GP-CONTROL
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8H-0707 | [3] | BOLT | |
| 2. | 5P-0537 | [3] | WASHER | |
| 3. | 9T-0651 | [1] | HOUSING | |
| 4. | 8J-6273 | [1] | RING-RETAINING | |
| 5. | 9T-0824 | [1] | RETAINER-PISTON | |
| 6. | 4T-7791 | [1] | RING-BACK-UP | |
| 7. | 5L-4759 | [1] | SEAL-O-RING | |
| 8. | 9T-0822 | [1] | SPRING-DETENT | |
| 9. | 4T-7801 | [1] | PISTON | |
| 10. | 8C-3088 | [1] | SEAL-O-RING | |
| 11. | 4T-7795 | [1] | RING-BACK-UP | |
| 12. | 5H-1472 | [8] | BALL | |
| 13. | 9T-0825 | [1] | WASHER-GUIDE | |
| 14. | 9T-0647 | [1] | SHAFT | |
| 15. | 4T-4530 | [1] | COUPLING | |
| 16. | 4T-7803 | [1] | SPACER | |
| 17. | 4T-4521 | [2] | RETAINER | |
| 18. | 4T-4513 | [1] | SPRING | |
| 19. | 7F-8607 | [2] | SEAL-O-RING | |
| 20. | 9T-1043 | [1] | VALVE GP-CHECK | |
| 21. | 4K-1388 | [1] | SEAL-O-RING | |
| 22. | 4T-7795 | [1] | RING-BACK-UP | |
| 23. | 8C-3088 | [1] | SEAL-O-RING | |
| 24. | 031-0214 | [2] | BOLT-SELF LOCKING | |
| 25. | 4T-4528 | [1] | RETAINER | |
| 26. | 4T-4524 | [1] | GUARD-DUST | |
| 27. | 4T-4520 | [1] | FILTER | |
| 28. | 9S-8006 | [1] | PLUG-O-RING | |
| 29. | 2M-9780 | [1] | SEAL-O-RING | |
| 30. | 4T-4534 | [1] | SPRING | |
| 31. | 9T-3729 | [1] | SPRING | |
| 32. | 4T-4526 | [1] | SEAT | |
| 33. | 7J-0204 | [1] | SEAL-O-RING | |
| 34. | 8T-2360 | [1] | SEAL-O-RING | |
| 35. | 5B-9318 | [1] | BALL | |
| 36. | 8T-2361 | [1] | SEAL-O-RING | |
| 37. | 1P-7363 | [1] | SEAL-O-RING | |
| 38. | 3J-7354 | [1] | SEAL-O-RING | |
| 39. | 9T-8537 | [1] | VALVE | |
| 40. | 8F-0212 | [1] | SEAL-O-RING |
#SEBP18360252
9T-1545: VALVE GP-PRIORITY FLOW DIVIDER
9T1545 VALVE GP-CONTROL (INLET)
PART OF 9T1215 & 9T1216 VALVE
AN ATTACHMENT
PART OF 9T1215 & 9T1216 VALVE
AN ATTACHMENT
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 9S-8006 | [1] | PLUG-O-RING | |
| 2. | 2M-9780 | [1] | SEAL-O-RING | |
| 3. | 103-4754 | [1] | SPRING | |
| 4. | 9T-0655 | [1] | VALVE GP-RELIEF (RELIEF) | |
| 5. | 3D-2824 | [1] | SEAL-O-RING | |
| 6. | 9T-0656 | [1] | RING | |
| 7. | 1S-8947 | [1] | SEAL-O-RING | |
| 8. | 5B-9318 | [1] | BALL | |
| 9. | 8T-2360 | [1] | SEAL-O-RING | |
| 10. | 7J-0204 | [1] | SEAL-O-RING | |
| 11. | 4T-4526 | [1] | SEAT |
#SEBP18360253
9T-7936: VALVE GP-CHECK
9T7936 VALVE GP-PILOT OPERATED
PART OF 9T8787 VALVE
PART OF 9T8787 VALVE
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS#SEBP18360254
9T-7928: VALVE GP-BRAKE CONTROL
9T7928 VALVE GP-BRAKE CONTROL
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| NO SERVICEABLE PARTS | ||||
#SEBP18360255
9T-8787: VALVE GP-CONTROL
9T8787 VALVE GP-CONTROL-RH & LH STABILIZER
9T7936-PAGE 179
PART OF 9T1217, 9T1218 & 9T1219 VALVES
AN ATTACHMENT
9T7936-PAGE 179
PART OF 9T1217, 9T1218 & 9T1219 VALVES
AN ATTACHMENT
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8B-2377 | [2] | BOLT | |
| 2. | 5P-0537 | [2] | WASHER | |
| 3. | 9T-8786 | [1] | HOUSING | |
| 4. | 031-5085 | [1] | BOLT-SELF LOCKING | |
| 5. | 4T-4533 | [1] | SPACER | |
| 6. | 4T-4521 | [2] | RETAINER | |
| 7. | 4T-4516 | [1] | SPRING | |
| 8. | 7F-8607 | [2] | SEAL-O-RING | |
| 9. | 031-0214 | [2] | BOLT-SELF LOCKING | |
| 10. | 4T-4528 | [1] | RETAINER | |
| 11. | 4T-4524 | [1] | GUARD-DUST | |
| 12. | 4T-4520 | [1] | FILTER | |
| 13. | 9S-8006 | [1] | PLUG-O-RING | |
| 14. | 2M-9780 | [1] | SEAL-O-RING | |
| 15. | 9T-7936 Y | [1] | VALVE GP-CHECK | |
| 16. | 4T-4526 | [1] | SEAT | |
| 17. | 4T-4525 | [1] | VALVE-RESOLVER | |
| 18. | 3J-7354 | [1] | SEAL-O-RING | |
| 19. | 1P-7363 | [1] | SEAL-O-RING | |
| 20. | 7J-0204 | [1] | SEAL-O-RING | |
| 21. | 8T-2360 | [1] | SEAL-O-RING | |
| 22. | 5B-9318 | [1] | BALL | |
| 23. | 8T-2361 | [1] | SEAL-O-RING | |
| Y | SEPARATE ILLUSTRATION | |||
#SEBP18360256
6E-4669: VALVE GP-CONTROL
6E4669 VALVE GP-CONTROL
PART OF 9T1217, 9T1218, 9T1219 VALVES
PART OF 9T1217, 9T1218, 9T1219 VALVES
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 8B-2377 | [2] | BOLT (1/4-20X2IN) | |
| 2. | 5P-0537 | [2] | WASHER | |
| 3. | 9T-8786 | [1] | HOUSING | |
| 4. | 031-5085 | [1] | BOLT-LOCKING (1/4-20X1.00 IN) | |
| 5. | 4T-4533 | [1] | SPACER | |
| 6. | 4T-4521 | [2] | RETAINER | |
| 7. | 4T-4516 | [1] | SPRING | |
| 8. | 7F-8607 | [2] | SEAL-O-RING | |
| 9. | 031-0214 | [2] | BOLT-LOCKING (1/4-20X.500 IN) | |
| 10. | 4T-4528 | [1] | RETAINER | |
| 11. | 4T-4524 | [1] | GUARD-DUST | |
| 12. | 4T-4520 | [1] | FILTER | |
| 13. | 9S-8006 | [1] | PLUG-O-RING | |
| 14. | 2M-9780 | [1] | SEAL-O-RING | |
| 15. | 8T-2361 | [1] | SEAL-O-RING | |
| 16. | 1P-7363 | [1] | SEAL-O-RING | |
| 17. | 3J-7354 | [1] | SEAL-O-RING | |
| 18. | 4T-4525 | [1] | VALVE-RESOLVER | |
| 19. | 4T-4526 | [1] | SEAT | |
| 20. | 7J-0204 | [1] | SEAL-O-RING | |
| 21. | 8T-2360 | [1] | SEAL-O-RING | |
| 22. | 5B-9318 | [1] | BALL | |
| 23. | 6E-6280 Y | [1] | VALVE GP-RELIEF | |
| Y | SEPARATE ILLUSTRATION | |||
#SEBP18360257
9T-3257: MANIFOLD GP
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 9T-8515 | [1] | MANIFOLD | |
| 2. | 4T-4643 | [1] | PLUG | |
| 3. | 3K-0360 | [1] | SEAL-O-RING | |
| 4. | 7J-9933 | [1] | SEAL-O-RING | |
| 5. | 4T-5896 Y | [1] | VALVE GP-CHECK | |
| 6. | 9S-8002 | [3] | PLUG-O-RING | |
| 7. | 3J-7354 | [3] | SEAL-O-RING | |
| 8. | 9T-8048 Y | [1] | VALVE GP-RELIEF | |
| 9. | 8J-6815 | [1] | PLUG-ORIFICE | |
| Y | SEPARATE ILLUSTRATION | |||
#SEBP18360258
9T-8048: VALVE GP-RELIEF
Parts for your 446 BACKHOE LOADER:
CATERPILLAR SIS| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 1. | 4T-1006 | [1] | PLUG | |
| 2. | 7M-8485 | [2] | SEAL-O-RING (29.74MM) ID | |
| 3. | Y | [1] | VALVE GP-RELIEF | |
| 4. | 6V-5393 | [1] | SEAL-O-RING | |
| 5. | 4T-1011 | [1] | RING-SEAL | |
| 6. | 5F-7054 | [1] | SEAL-O-RING (18.6MM ID) | |
| 7. | 1U-4765 | [1] | SPRING | |
| 8. | 4T-5075 | [1] | RING-BACK-UP | |
| 9. | 3G-8612 | [6] | SPACER | |
| 10. | 5S-7001 | [4] | SPACER .91MM(.036IN)THK | |
| 11. | 5S-7018 B | [5] | SPACER .25MM(.010IN)THK | |
| B | USE AS REQUIRED | |||
| Y | SEPARATE ILLUSTRATION | |||
#SEBP18360259
4T-5896: VALVE GP-CHECK
4T5896 VALVE GP-CHECK
PART OF 9T3257 MANIFOLD
PART OF 9T3257 MANIFOLD
Information:
HYDRAULIC SYSTEM
VALVE GP-CONTROL
Tool Operating Manual
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Service Magazine
Caterpillar Parts SIS Catalog 446 :
Truck sale:
800
Caterpillar WORK TOOLS (NON-SERIALIZED) 446 30 BACKHOE BUCKET, Construction
- bucket
THOMPSON TRACTOR CO., INC.
- bucket
THOMPSON TRACTOR CO., INC.



