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373-8424 MOTOR GP-PISTON -2-SPEED PART OF 389-7567, 389-7568 DRIVE GP-TRACK AN ATTACHMENT 257D MULTI TERRAIN LOADER


POWER TRAIN
DRIVE GP
AXLE GP
COUPLING GP
DRIVE GP
FRAME AND BODY
CONVERSION GP

MULTI TERRAIN LOADER 257D MULTI TERRAIN LOADER EML
 257D Multi Terrain Loader EML00001-UP (MACHINE) SEBP6429 257D EML   (2013)

POWER TRAIN

DRIVE GP
DRIVE GP-TRACK
389-7583 DRIVE GP-TRACK
DRIVE GP-TRACK
389-7584 DRIVE GP-TRACK
MOTOR GP-PISTON
373-8424 MOTOR GP-PISTON
MOTOR GP-PISTON
378-2823 MOTOR GP-PISTON
MOUNTING GP-PUMP
345-3602 MOUNTING GP-PUMP
PUMP & MTG GP-HYDROSTATIC
358-4975 PUMP & MTG GP-HYDROSTATIC
 

#SEBP64290240
 

373-8424: MOTOR GP-PISTON

373-8424 MOTOR GP-PISTON -2-SPEED
PART OF 389-7567, 389-7568 DRIVE GP-TRACK
AN ATTACHMENT
i05418235 SEBP6429
3738424 MOTOR GP-PISTON Parts scheme 3738424 MOTOR GP-PISTON Parts scheme
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 101-7404 M [8] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
2. 278-8723 [1] KIT-COVER  
    (INCLUDES CIRCLIP, COVER & ALSO INCLUDES PARTS MARKED "H" IN THE GRAPHICS)
3. 442-5638 [1] KIT-GEAR  
    (INCLUDES GEARS, CIRCLIPS & ALSO INCLUDES PARTS MARKED "H" IN THE GRAPHICS)
4. 455-7971 [1] KIT-SEAL  
    (INCLUDES PARTS MARKED "U" IN THE GRAPHICS)
5. 386-6631 [1] KIT-ROTATING  
6. 386-6633 [1] KIT-SHAFT  
    (INCLUDES PARTS MARKED "P" IN THE GRAPHICS)
7. 487-6227 [1] KIT-SWASHPLATE  
    (INCLUDES PISTON, SPRING, BALLS & SWASH PLATE)
8. 386-6634 [1] KIT-BRAKE  
    (INCLUDES RING RETAININGS, COVER, SPRINGS, BRAKE PISTON, DISC STEEL, DISC SINTERED, SHAFT BRAKE & ALSO INCLUDES PARTS MARKED "P" & "U" IN THE GRAPHICS)
9. 442-5640 JX [2] PLUG AS-CONNECTOR  
    (EACH INCLUDES)
  095-1582 [1] SEAL-O-RING  
10. 487-6189 J [2] PLUG-ADAPTER  
11. 3K-0360 J [2] SEAL-O-RING  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  455-7977 J [1] KIT-SEAL  
    (INCLUDES O-RINGS, BACKUP RINGS & ALSO INCLUDES PARTS MARKED "U" IN THE GRAPHICS)
  289-6367 [1] KIT-DUO-CONE SEAL  
    (PARTS MARKED "H", "L" & "N" IN THE GRAPHICS)
  385-9509 [1] KIT-BEARING  
    (INCLUDES PARTS MARKED "S" IN THE GRAPHICS)
  487-6197 [1] KIT-BALL BEARING  
    (INCLUDES PARTS MARKED "H" "N" & "T" IN THE GRAPHIC)
  487-6238 [1] KIT-VALVE  
    (INCLUDES PARTS MARKED "W" & "U" IN THE GRAPHIC)
  487-6244 X [1] KIT-FLUSHING VALVE  
    (INCLUDES PARTS MARKED "V" IN THE GRAPHIC)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  X   KIT MARKED X SERVICES PART(S) MARKED X
 

#SEBP64290241
 

378-2823: MOTOR GP-PISTON

378-2823 MOTOR GP-PISTON -1-SPEED
PART OF 389-7583, 389-7584 DRIVE GP-TRACK
AN ATTACHMENT
i05412751 SEBP6429
3782823 MOTOR GP-PISTON Parts scheme 3782823 MOTOR GP-PISTON Parts scheme
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 101-7404 M [8] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
2. 278-8723 [1] KIT-COVER  
    (INCLUDES CIRCLIP, COVER & ALSO INCLUDES PARTS MARKED "H" IN THE GRAPHICS)
3. 442-5638 [1] KIT-GEAR  
    (INCLUDES GEARS, CIRCLIPS & ALSO INCLUDES PARTS MARKED "H" IN THE GRAPHICS)
4. 455-7971 [1] KIT-SEAL  
    (INCLUDES PARTS MARKED "U" IN THE GRAPHICS)
5. 386-6631 [1] KIT-ROTATING  
6. 386-6633 [1] KIT-SHAFT  
    (INCLUDES PARTS MARKED "P" IN THE GRAPHICS)
7. 455-7979 [1] KIT-SWASHPLATE  
    (INCLUDES BALLS & SWASH PLATE)
8. 386-6634 [1] KIT-BRAKE  
    (INCLUDES RING RETAININGS, COVER, SPRINGS, BRAKE PISTON, DISC STEEL, DISC SINTERED, SHAFT BRAKE & ALSO INCLUDES PARTS MARKED "P" IN THE GRAPHICS)
9. 442-5640 JX [2] PLUG AS-CONNECTOR  
    (EACH INCLUDES)
  095-1582 [1] SEAL-O-RING  
10. 487-6189 J [2] PLUG-ADAPTER  
11. 3K-0360 J [2] SEAL-O-RING  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  455-7977 J [1] KIT-SEAL  
    (INCLUDES O-RINGS, BACKUP RINGS & ALSO INCLUDES PARTS MARKED "U" IN THE GRAPHICS)
  289-6367 [1] KIT-DUO-CONE SEAL  
    (PARTS MARKED "H", "L" & "N" IN THE GRAPHICS)
  385-9509 [1] KIT-BEARING  
    (INCLUDES PARTS MARKED "S" IN THE GRAPHICS)
  487-6197 [1] KIT-BALL BEARING  
    (INCLUDES PARTS MARKED "H" "N" & "T" IN THE GRAPHIC)
  487-6244 X [1] KIT-FLUSHING VALVE  
    (INCLUDES PARTS MARKED "V" IN THE GRAPHIC)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  X   KIT MARKED X SERVICES PART(S) MARKED X
 

#SEBP64290242
 

372-5737: MOUNTING GP-AXLE

372-5737 MOUNTING GP-AXLE
PART OF 388-8182 CHASSIS AR
ALSO AN ATTACHMENT
i05310551 SEBP6429
3725737 MOUNTING GP-AXLE Parts scheme
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 359-6340 [4] PLATE  
2. 216-6118 [4] WASHER (13.5X57X6-MM THK)  
3. 348-9686 [4] SPACER (45.7X76.2X22.5-MM THK)  
4. 3E-4356 [16] WASHER-HARD (17.5X30X6-MM THK)  
5. 7M-5130 [4] PIN-SPRING  
6. 8T-4193 M [14] BOLT (M16X2X50-MM)  
7. 8T-4183 M [8] BOLT (M12X1.75X40-MM)  
8. 9X-6149 M [2] BOLT (M16X2X50-MM)  
9. 8T-4223 [8] WASHER-HARD (13.5X25.5X3-MM THK)  
10. 162-8284 M [4] BOLT (M12X1.75X60-MM)  
  M   METRIC PART
 

#SEBP64290243
 

345-3602: MOUNTING GP-PUMP

345-3602 MOUNTING GP-PUMP
PART OF 378-6690, 393-7340 INSTALLATION AR-ENGINE
ALSO AN ATTACHMENT
i05162992 SEBP6429
3453602 MOUNTING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 345-3548 [1] COUPLING  
2. 345-3601 [1] PLATE-ADAPTER  
3. 362-0154 M [20] BOLT-FLANGE HEAD (M10X1.25X35-MM)  
  M   METRIC PART
 

#SEBP64290244
 

358-4975: PUMP & MTG GP-HYDROSTATIC

358-4975 PUMP & MTG GP-HYDROSTATIC
PART OF 345-5925 HYDRAULIC AR
Type 1
ALSO AN ATTACHMENT
i04764171 SEBP6429
3584975 PUMP & MTG GP-HYDROSTATIC Parts scheme
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 165-0142 [2] WASHER-HARD (14.8X27X3-MM THK)  
2. 258-2405 Y [1] PUMP GP-PISTON (HYDROSTATIC)  
3. 361-2657 M [2] BOLT-12 POINT HEAD (M14X2X40-MM)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP64290245
 

358-4975: PUMP & MTG GP-HYDROSTATIC

358-4975 PUMP & MTG GP-HYDROSTATIC
PART OF 345-5925 HYDRAULIC AR
Type 2
ALSO AN ATTACHMENT
i06167135 SEBP6429
3584975 PUMP & MTG GP-HYDROSTATIC Parts scheme
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 165-0142 [2] WASHER-HARD (14.8X27X3-MM THK)  
2. 378-2822 CY [1] PUMP GP-PISTON (HYDROSTATIC)  
3. 361-2657 M [2] BOLT-12 POINT HEAD (M14X2X40-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP64290246
 

258-2405: PUMP GP-PISTON

258-2405 PUMP GP-PISTON -HYDROSTATIC
PART OF 358-4975 PUMP & MTG GP-HYDROSTATIC
ALSO AN ATTACHMENT
i02626298 SEBP6429
2582405 PUMP GP-PISTON Parts scheme
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Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 278-8737 [2] VALVE GP-PUMP CONTROL  
2. 378-2831 [2] KIT-SWASHPLATE  
3. 278-8748 [1] SHAFT-DRIVE  
5. 278-8751 J [4] SPRING  
6. 278-8746 [1] VALVE GP-RELIEF (CHARGE)  
7. 278-8743 [1] VALVE GP-SOLENOID (PARKING BRAKE)  
8. 278-8745 [4] KIT-RELIEF VALVE (CROSSOVER)  
    (EACH INCLUDES RELIEF VALVES, O-RING SEALS & SPRING)
9. 278-8750 [1] PLATE (CCW)  
10. 278-8749 [1] PLATE (CW)  
11. 278-8747 [1] SHAFT-DRIVE  
12. 9S-8002 [4] PLUG (7/16-20-THD)  
13. 9S-8004 [1] PLUG (9/16-18-THD)  
14. 9S-8008 [2] PLUG (1-1/16-12-THD)  
15. 341-7637 [2] KIT-BEARING (PISTON PUMP)  
    (EACH INCLUDES BEARING)
16. 278-8739 [2] ROTATING GP-PUMP (VIBRATORY)  
17. 8C-3413 M [6] BOLT-SOCKET HEAD (M12X1.75X120-MM)  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  278-8738 J [2] KIT-PISTON  
    (EACH INCLUDES PARTS MARKED "N" IN THE GRAPHIC)
  278-8736 [1] KIT-SEAL (PISTON PUMP)  
    (INCLUDES O-RINGS, PISTON SEAL RING, BACKUP RINGS, RETAINING RING, DOWEL PIN, SLOTTED PIN, GASKETS, SHAFT SEAL
    RETAINER & PARTS MARKED "H" IN THE GRAPHIC)
  278-8742 [1] KIT-BEARING (PISTON PUMP)  
    (INCLUDES PARTS MARKED "S" IN THE GRAPHIC)
  278-8744 [4] KIT-SOLENOID  
    (EACH INCLUDES PARTS MARKED "L" IN THE GRAPHIC)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP64290247
 

378-2822: PUMP GP-PISTON

378-2822 PUMP GP-PISTON -HYDROSTATIC
PART OF 358-4975 PUMP & MTG GP-HYDROSTATIC
ALSO AN ATTACHMENT
i05864124 SEBP6429
3782822 PUMP GP-PISTON Parts scheme 3782822 PUMP GP-PISTON Parts scheme
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 278-8737 [2] VALVE GP-PUMP CONTROL  
2. 378-2831 [2] KIT-SWASHPLATE  
3. 278-8748 [1] SHAFT-DRIVE  
4. 278-8751 J [4] SPRING  
5. 378-2832 [1] VALVE GP-RELIEF (CHARGE)  
6. 278-8743 [1] VALVE GP-SOLENOID (PARKING BRAKE)  
7. 278-8745 [4] KIT-RELIEF VALVE (CROSSOVER)  
    (EACH INCLUDES RELIEF VALVES, O-RING SEALS, & SPRING)
8. 278-8750 [1] PLATE (CCW)  
9. 278-8749 [1] PLATE (CW)  
10. 278-8747 [1] SHAFT-DRIVE  
11. 9S-8002 [4] PLUG (7/16-20-THD)  
12. 9S-8008 [2] PLUG (1-1/16-12-THD)  
13. 341-7637 [2] KIT-BEARING (PISTON PUMP)  
    (EACH INCLUDES BEARING)
14. 278-8739 [2] ROTATING GP-PUMP (VIBRATORY)  
15. 8C-3413 M [6] BOLT-SOCKET HEAD (M12X1.75X120-MM)  
16. 278-8744 [4] KIT-SOLENOID  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  278-8738 J [2] KIT-PISTON  
  278-8736 [1] KIT-SEAL  
    (INCLUDES O-RING, PISTON SEAL RING, BACKUP RINGS, RETAINING RING, DOWEL PIN, SLOTTED PIN, GASKETS, SHAFT SEAL)
  278-8742 [1] KIT-BEARING  
    (INCLUDES COUPLING, BEARING SLEEVES, RETAINING RINGS, & SHAFT BEARINGS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP64290248
 

389-7574: SPROCKET GP

389-7574 SPROCKET GP -NON-SEGMENTED
PART OF 389-7567, 389-7568, 389-7583, 389-7584 DRIVE GP-TRACK
AN ATTACHMENT
i05412750 SEBP6429
3897574 SPROCKET GP Parts scheme
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 258-3087 [1] RING-INNER  
2. 280-5091 [12] BOLT-CARRIAGE (1/2-13X7.5-IN)  
3. 342-5014 [12] SLEEVE-INNER  
4. 342-5015 [12] SLEEVE-OUTER  
5. 389-7577 [1] SPROCKET  
6. 1K-6872 [12] LOCKNUT (1/2-13-THD)  
7. 7X-3392 [12] WASHER-HARD (13.5X22.5X3-MM THK)  
 

#SEBP64290249
 

422-3403: CONVERSION AR-ROADING

422-3403 CONVERSION AR-ROADING
ITALY
AN ATTACHMENT
i05293765 SEBP6429
  For full view, you need register

Parts for your 257D MULTI TERRAIN LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  422-3400 Y [1] CONVERSION GP-ROADING  
  319-9480 Y [1] KIT-ROADING PLATE & MOUNTING (BUCKET)  
  457-1215 Y [1] LIFTING GP-MACHINE (FOUR POINT)  
  356-6074 Y [1] LIGHTING GP-ROADING  
  175-4238 Y [1] LOCK GP-QUICK COUPLER (MECHANICAL)  
  422-5558 Y [1] MOUNTING GP-CAB (ITALY)  
  422-3333 Y [1] MOUNTING GP-REGISTRATION  
  422-3334 Y [1] MOUNTING GP-ROADING LIGHTS  
  Y   SEPARATE ILLUSTRATION
 

Information:

Operation and Maintenance Manual
Final Drive Oil Level - Check
D-Series and D2-Series Compact Track Loaders (CTL), Multi-Terrain Loaders (MTL), and Skid Steer Loaders (SSL)
Final Drive Oil - Change
D-Series and D2-Series Compact Track Loaders (CTL), Multi-Terrain Loaders (MTL), and Skid Steer Loaders (SSL)
Tool Operating Manual
M0074040: 509-5085 Lifting Tool Assembly {0374, 0599, 0629, 0632, 3023, 3159, 3160, 5363, 7000}
M0074040: 509-5085 Lifting Tool Assembly {0374, 0599, 0629, 0632, 3023, 3159, 3160, 5363, 7000}
Systems Operation
Tandem Drive and Axle
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
Service Magazine
A New Service Interval is Now Used on Series D Compact Track Loader and Multi-Terrain LoaderFinal Drives {4351}
2015/06/24
Improved Two Speed Seal Kit Available for Certain B3, C and D Series Multi Terrain and Compact Track Loaders {4351, 5058}
2015/08/14

Caterpillar Parts SIS Catalog 257D :

MOTOR & MOUNTING GP
486-6956 MOTOR & MOUNTING GP
LINES GP-HYDROSTATIC
422-3192 LINES GP-HYDROSTATIC
LINES GP-HYDROSTATIC
422-3192 LINES GP-HYDROSTATIC
LINES GP-HYDROSTATIC
345-4692 LINES GP-HYDROSTATIC
LINES GP-HYDROSTATIC
345-4692 LINES GP-HYDROSTATIC
FILTER GP-OIL
479-0592 FILTER GP-OIL
FILTER GP-OIL
349-6096 FILTER GP-OIL
FILTER GP-OIL
346-5576 FILTER GP-OIL
MOTOR GP-PISTON
378-2823 MOTOR GP-PISTON
MOUNTING GP-AXLE
372-5737 MOUNTING GP-AXLE
MOUNTING GP-PUMP
345-3602 MOUNTING GP-PUMP
PUMP & MTG GP-HYDROSTATIC
358-4975 PUMP & MTG GP-HYDROSTATIC
PUMP & MTG GP-HYDROSTATIC
358-4975 PUMP & MTG GP-HYDROSTATIC
PUMP GP-PISTON
258-2405 PUMP GP-PISTON
PUMP GP-PISTON
378-2822 PUMP GP-PISTON
SPROCKET GP
389-7574 SPROCKET GP
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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
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