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358-5002 PUMP GP-PISTON -WORK TOOL, HIGH FLOW PART OF 422-3309 KIT-VALVE, 378-2851 PUMP & MTG GP-WORK TOOL AN ATTACHMENT 257D




HYDRAULIC SYSTEM

PUMP GP
 

#SEBP64290410
 

358-5002: PUMP GP-PISTON

358-5002 PUMP GP-PISTON -WORK TOOL, HIGH FLOW
PART OF 422-3309 KIT-VALVE, 378-2851 PUMP & MTG GP-WORK TOOL
AN ATTACHMENT
i05160124 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-9597 [1] RING-RETAINING  
2. 185-0303 [1] SEAL-OIL  
3. 9S-8005 [3] PLUG (3/4-16-THD)  
4. 3K-0360 [3] SEAL-O-RING  
5. 359-1006 [1] SPRING  
6. 128-1929 [1] PIN-DOWEL  
7. 168-3504 [2] SEAL  
8. 8T-9515 M [4] BOLT-SOCKET HEAD (M10X1.5X40-MM)  
9. 191-7583 [1] BEARING-TAPERED  
10. 231-4707 [1] SEAL-O-RING  
11. 191-7582 [1] SHIM (2.5-MM THK)  
12. 351-6663 [2] BEARING-CRADLE  
13. 364-2043 [1] BEARING-ROLLER (TAPERED)  
14. 280-7870 [1] GASKET  
15. 6V-8653 M [4] BOLT-SOCKET HEAD (M6X1X40-MM)  
16. 423-0091 [1] COUPLER  
17. 423-0087 J [1] VALVE GP-SOLENOID (PISTON PUMP)  
   
    AVAILABLE REPAIR KIT(S):
  359-3755 [1] KIT-SEAL (PISTON PUMP)  
    (INCLUDES SEALS)
  423-0093 J [1] KIT-SEAL  
    (INCLUDES O-RINGS & BACK-UP RINGS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP64290411
 

345-4980: TANK & MTG GP-HYDRAULIC

345-4980 TANK & MTG GP-HYDRAULIC
PART OF 345-5925 HYDRAULIC AR
ALSO AN ATTACHMENT
i05172881 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 345-4585 I [1] HOSE AS  
2. 345-4791 [1] ADAPTER  
3. 142-8937 [1] CAP AS-FILLER (LOCKABLE)  
4. 178-3620 [1] STRAP-DUAL CLAMP  
5. 250-1482 [1] CONNECTOR AS  
  3K-0360 [1] SEAL-O-RING  
  5P-9615 [1] CONNECTOR  
6. 258-2829 [1] BREATHER (HYDRAULIC TANK)  
7. 262-5689 [1] STRAINER AS (HYDRAULIC TANK)  
  135-7940 [1] SEAL-O-RING  
9. 345-4581 [1] TANK GP-HYDRAULIC  
  345-4583 [1] GAUGE-SIGHT (HYDRAULIC TANK)  
10. 345-4589 [1] INSULATION  
11. 345-4981 [1] BRACKET AS  
12. 148-8340 [1] CONNECTOR AS  
  3K-0360 [1] SEAL-O-RING  
  6V-8398 [1] SEAL-O-RING  
  6V-8639 [1] CONNECTOR  
13. 266-3315 M [2] BOLT-FLANGE HEAD (M8X1.25X25.5-MM)  
14. 521-6102 [2] CLAMP  
16. 7X-2534 M [2] BOLT (M6X1X50-MM)  
17. 8T-4205 [2] WASHER-HARD (7.2X14.5X2-MM THK)  
18. 423-1984 G HOSE (18.2-IN)  
19. 458-9745 [1] BRACKET AS  
20. 342-9922 M [2] BOLT-FLANGE HEAD (M8X1.25X25-MM)  
21. 150-3072 [1] PLUG AS  
  6V-8398 [1] SEAL-O-RING  
  6V-9509 [1] PLUG (13/16-16-THD)  
  G   ORDER BY THE INCH
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
  M   METRIC PART
 

#SEBP64290412
 

373-7033: VALVE & MTG GP-CONTROL

373-7033 VALVE & MTG GP-CONTROL -IMPLEMENT
PART OF 388-8135, 388-8136, 388-8138, 467-8083, 467-8084 HYDRAULIC AR
AN ATTACHMENT
i05166019 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 449-1584 Y [1] VALVE GP-CONTROL (IMPLEMENT)  
2. 445-1047 M [1] BOLT-FLANGE HEAD (M8X1.25X20-MM)  
3. 208-9288 M [2] BOLT (M8X1.25X60-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP64290413
 

499-9329: VALVE & MTG GP-COUPLER

499-9329 VALVE & MTG GP-COUPLER
PART OF 515-7791 LINES GP-COUPLER
AN ATTACHMENT
i06891894 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 499-9330 N [1] VALVE GP-RELIEF  
2. 446-1411 J [1] VALVE GP-SOLENOID (END GATE RAISE, LOWER)  
3. 499-9333 N [1] VALVE AS-COUNTERBALANCE  
4. 456-1822 [2] COIL AS  
   
    AVAILABLE REPAIR KIT(S):
  446-1412 J [2] KIT-SEAL  
    (INCLUDES BACKUP RINGS & O-RING SEALS)
  446-5507 J [1] KIT-NUT  
    (INCLUDES O-RING SEALS & COIL NUT)
  454-7925 N [1] KIT-SEAL  
    (INCLUDES O-RING SEALS & BACKUP RINGS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  N   KIT MARKED N SERVICES PART(S) MARKED N
 

#SEBP64290414
 

541-8674: VALVE GP-BANK 2

541-8674 VALVE GP-BANK 2 -DOZER
BLADE
PART OF 539-9170 HYDRAULIC AR
AN ATTACHMENT
i07545071 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 424-4858 [1] COVER-END  
2. 174-2429 [1] KIT-INSTALLATION  
    (INCLUDES NUTS, WASHERS, STAY BOLTS & O-RING SEALS)
3. 373-7004 [3] KIT-SEAL  
    (EACH INCLUDES O-RING SEALS)
4. 499-9335 [1] MANIFOLD GP-HYDRAULIC  
  373-6989 [1] VALVE GP-RELIEF (DIRECT OPERATED)  
  543-5224 [1] VALVE AS-PRESSURE REDUCING  
5. 543-3613 Y [1] VALVE GP-CONTROL (ANGLE)  
6. 543-3614 Y [1] VALVE GP-CONTROL (TILT)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP64290415
 

6E-4701: VALVE GP-CHECK

6E-4701 VALVE GP-CHECK
PART OF 345-4692, 422-3192 LINES GP-HYDROSTATIC
AN ATTACHMENT
i00400580 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3J-1907 [1] SEAL-O-RING  
2. 6V-8397 [1] SEAL-O-RING  
 

#SEBP64290416
 

449-1584: VALVE GP-CONTROL

449-1584 VALVE GP-CONTROL -IMPLEMENT
PART OF 373-7033 VALVE & MTG GP-CONTROL
AN ATTACHMENT
i05721010 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 456-1787 [1] VALVE GP-RELIEF (MAIN)  
  130-1676 [1] SEAL-O-RING  
  214-7566 [1] SEAL-O-RING  
2. 437-2849 [1] VALVE GP-RELIEF (LIFT, HEAD END)  
2A. 437-2849 [1] VALVE GP-RELIEF (TILT, ROD END)  
3. 437-2850 [1] VALVE GP-RELIEF (AUXILIARY)  
3A. 437-2850 [1] VALVE GP-RELIEF (TILT, HEAD END)  
4. 437-2830 [1] VALVE GP-MAKEUP (LIFT, ROD END)  
    (EACH VALVE GP INCLUDES)
  228-7103 [1] SEAL-O-RING  
5. 437-2831 [1] VALVE AS-CHECK (AUXILIARY)  
5A. 437-2831 [1] VALVE AS-CHECK (LIFT, LOWER)  
5B. 437-2831 [1] VALVE AS-CHECK (TILT DUMP)  
    (EACH INCLUDES)
  2M-9780 [1] SEAL-O-RING  
6. 437-2833 [1] HOUSING  
7. 437-2851 [1] MANIFOLD GP-CONTROL  
  8T-2396 M [2] BOLT (M6X1X60-MM)  
  109-1393 M [12] BOLT-SOCKET HEAD (M4X0.7X10-MM)  
  346-4995 [6] VALVE-SOLENOID (12-VDC)(IMPLEMENT LOAD CONTROL)  
8. 456-1836 [1] KIT-SEAL  
    (INCLUDES O-RING SEALS)
9. 437-2836 M [2] BOLT-FLANGE HEAD (M6X1X65-MM)  
10. 437-2837 [3] KIT-SPRING  
11. 8T-8442 M [4] BOLT-SOCKET HEAD (M6X1X30-MM)  
12. 9S-8004 [2] PLUG (9/16-18-THD)  
13. 3J-1907 [2] SEAL-O-RING  
  M   METRIC PART
 

#SEBP64290417
 

543-3613: VALVE GP-CONTROL

543-3613 VALVE GP-CONTROL -ANGLE
PART OF 541-8674 VALVE GP-BANK 2
AN ATTACHMENT
i07545075 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 373-6993 H [1] KIT-COVER (CONTROL VALVE)  
  236-9839 M [4] BOLT-SOCKET HEAD (M6X1X15-MM)  
    (ALSO INCLUDES HOUSING & O-RINGS)
2. 373-7006 [2] VALVE GP-RELIEF (DIRECT OPERATED)  
3. 346-4994 J [1] MANIFOLD & SOLENOID GP-CONTROL (BLADE LIFT)  
  346-4995 [2] VALVE-SOLENOID (12-VDC)(BLADE LIFT)  
   
    AVAILABLE REPAIR KIT(S):
  373-6992 J [1] KIT-SEAL  
    (INCLUDES O-RINGS)
  373-7041 H [1] KIT-SEAL (VALVE COVER)  
  H   KIT MARKED H SERVICES PART(S) MARKED H
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP64290418
 

543-3614: VALVE GP-CONTROL

543-3614 VALVE GP-CONTROL -TILT
PART OF 541-8674 VALVE GP-BANK 2
AN ATTACHMENT
i07545077 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 373-6993 H [1] KIT-COVER  
  236-9839 M [4] BOLT-SOCKET HEAD (M6X1X15-MM)  
    (ALSO INCLUDES HOUSING & O-RINGS)
2. 346-4994 J [1] MANIFOLD & SOLENOID GP-CONTROL (BLADE LIFT)  
  346-4995 [2] VALVE-SOLENOID (12-VDC)  
   
    AVAILABLE REPAIR KIT(S):
  373-6992 J [1] KIT-SEAL  
    (INCLUDES O-RINGS)
  373-7041 H KIT-SEAL (VALVE COVER)  
  H   KIT MARKED H SERVICES PART(S) MARKED H
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP64290419
 

449-1570: VALVE GP-SOLENOID

449-1570 VALVE GP-SOLENOID -12 VDC
PART OF 435-9031 KIT-FAN REVERSING, 435-9221 MOTOR & MTG GP-HYDRAULIC FAN
AN ATTACHMENT
i06080104 SEBP6429
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3E-6786 [1] SEAL-O-RING  
2. 422-8922 [1] NUT-SPECIAL  
3. 456-1816 [1] KIT-SEAL  
    (INCLUDES BACK-UP RINGS & O-RINGS)
4. 456-1826 [1] SEAL-O-RING  
5. 466-2973 [1] COIL AS  
 

Information:

Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Installation Procedure for the <NOBR>422-3309</NOBR> Valve Kit (High Flow) {5070}
Installation Procedure for the 422-3309 Valve Kit (High Flow) {5070}
Clean out Procedure for the Implement Pump Failure on Certain Compact Track Loaders, Multi Terrain Loaders, and Skid Steer Loaders {5073}
Clean out Procedure for the Implement Pump Failure on Certain Compact Track Loaders, Multi Terrain Loaders, and Skid Steer Loaders {5073}
Specifications
Gear Pump
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Gear Pump
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Systems Operation
Gear Pump - Charge Oil
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Piston Pump - High Flow (If Equipped)
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Hydraulic Fan System
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Vane Type Hydraulic Pumps {5055}
Vane Type Hydraulic Pumps {5055}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Bench Test Procedure For Hydraulic Piston Pumps {3203, 5070}
Bench Test Procedure For Hydraulic Piston Pumps {3203, 5070}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Testing and Adjusting
Pressure Tap Locations
259D, 279D, 289D, 299D, 299D XHP, 299D2 and 299D2 XHP Compact Track Loaders, 257D, 277D, 287D, 297D, 297D XHP, 297D2 and 297D2 XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D, 272D XHP, 272D2 and 272D2 XHP Skid Steer Loaders
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure For Hydraulic Piston Pumps {3203, 5070}
Bench Test Procedure For Hydraulic Piston Pumps {3203, 5070}
Disassembly and Assembly
Pump Drive Coupling - Remove and Install
259D, 279D and 289D Compact Track Loaders, 257D, 277D and 287D Multi Terrain Loaders and 236D, 242D, 246D and 262D Skid Steer Loaders Engine Supplement
Gear Pump - Disassemble - Charge Pump
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Gear Pump - Assemble - Charge Pump
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Gear Pump - Remove and Install - Charge Pump
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Piston Pump - Remove and Install - High Flow
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Piston Pump - Disassemble - High Flow
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Piston Pump - Assemble - High Flow
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Gear Pump - Remove and Install - Standard Flow
259D, 279D, 289D, 299D and 299D XHP Compact Track Loaders, 257D, 277D, 287D, 297D and 297D XHP Multi Terrain Loaders and 236D, 242D, 246D, 262D, 272D and 272D XHP Skid Steer Loaders Machine Systems
Service Magazine
Changes to Drive Motor Serviceability for Certain Compact Track Loader‡s and Multi-Terrain Loader‡s {5073, 7521, 7524, 7525}
Changes to Drive Motor Serviceability for Certain Compact Track Loader‡s and Multi-Terrain Loader‡s {5073, 7521, 7524, 7525}

Caterpillar Parts SIS Catalog 257D :

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