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258-2557 PUMP & MTG GP-WORK TOOL -HIGH FLOW S/N MBT2345-2345 PART OF 258-3182 HYDRAULIC AR AN ATTACHMENT 279C


HYDRAULIC SYSTEM
PUMP GP

COMPACT TRACK LOADER 279C COMPACT TRACK LOADER MBT
 279C Compact Track Loader MBT00001-UP (MACHINE) POWERED BY 3044C Engine SEBP5067 279C MBT   (2008)

HYDRAULIC SYSTEM

PUMP GP
PUMP & MTG GP-WORK TOOL
258-2556 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP GP-GEAR
258-2555 PUMP GP-GEAR
 

#SEBP50670350
 

258-2557: PUMP & MTG GP-WORK TOOL

258-2557 PUMP & MTG GP-WORK TOOL -HIGH FLOW
S/N MBT2345-2345
PART OF 258-3182 HYDRAULIC AR
AN ATTACHMENT
i04491692 SEBP5067
2582557 PUMP & MTG GP-WORK TOOL Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 341-7659 CY [1] PUMP GP-PISTON (WORK TOOL)  
2. 258-2555 Y [1] PUMP GP-GEAR (WORK TOOL HYDRAULIC)  
3. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
4. 5P-3863 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-5049 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670351
 

258-2557: PUMP & MTG GP-WORK TOOL

258-2557 PUMP & MTG GP-WORK TOOL -HIGH FLOW
S/N MBT2348-2424
PART OF 258-3182 HYDRAULIC AR
AN ATTACHMENT
i04491730 SEBP5067
2582557 PUMP & MTG GP-WORK TOOL Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 258-2554 CY [1] PUMP GP-PISTON (HIGH FLOW)(WORK TOOL)  
2. 258-2555 Y [1] PUMP GP-GEAR (WORK TOOL HYDRAULIC)  
3. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
4. 5P-3863 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-5049 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670352
 

258-2557: PUMP & MTG GP-WORK TOOL

258-2557 PUMP & MTG GP-WORK TOOL -HIGH FLOW
S/N MBT2425-UP
PART OF 258-3182 HYDRAULIC AR
AN ATTACHMENT
i04491790 SEBP5067
2582557 PUMP & MTG GP-WORK TOOL Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 341-7659 CY [1] PUMP GP-PISTON  
2. 258-2555 Y [1] PUMP GP-GEAR  
3. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
4. 5P-3863 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-5049 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670353
 

258-2555: PUMP GP-GEAR

258-2555 PUMP GP-GEAR
S/N MBT1-UP
PART OF 258-2557 PUMP & MTG GP-WORK TOOL
AN ATTACHMENT
i04528049 SEBP5067
2582555 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-6685 M [4] BOLT (M10X1.5X110-MM)  
2. 8T-5095 [4] WASHER-PLATED (11X16X2-MM THK)  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  278-8715 [1] KIT-SEAL  
    (INCLUDES PARTS MARKED "J" IN GRAPHIC)
  M   METRIC PART
 

#SEBP50670354
 

258-3261: PUMP GP-GEAR

258-3261 PUMP GP-GEAR
S/N MBT1-UP
PART OF 258-3401 PUMP GP-PISTON & GEAR
AN ATTACHMENT
i04533654 SEBP5067
2583261 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-6685 M [4] BOLT (M10X1.5X110-MM)  
2. 8T-5095 [4] WASHER-PLATED (11X16X2-MM THK)  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
   
    AVAILABLE REPAIR KIT(S):
  278-8715 [1] KIT-SEAL (GEAR PUMP)  
    (INCLUDES PARTS MARKED "J" IN GRAPHIC)
  M   METRIC PART
 

#SEBP50670355
 

258-2554: PUMP GP-PISTON

258-2554 PUMP GP-PISTON -HIGH FLOW
S/N MBT1-2424
PART OF 258-2557 PUMP & MTG GP-WORK TOOL, 258-3401 PUMP GP-PISTON & GEAR
AN ATTACHMENT
i02614218 SEBP5067
2582554 PUMP GP-PISTON Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 232-3587 [1] KIT-BEARING (PISTON PUMP)  
2. 232-3586 [1] KIT-BEARING (PISTON PUMP)  
    (EACH BEARING KIT INCLUDES TAPERED ROLLER BEARING)
3. 260-3146 [1] SWASHPLATE  
4. 260-3149 [1] KIT-CYLINDER (PISTON PUMP)  
    (INCLUDES PISTON AS, SLIPPER RETAINER, GUIDE, PINS, CYLINDER BLOCK, SPRING SEATS, SPRING & RING)
5. 260-3147 [1] PLATE  
6. 260-3145 [1] KIT-SWASHPLATE (PISTON PUMP)  
    (INCLUDES PINS & BEARINGS)
7. 278-8718 [1] VALVE GP-PUMP CONTROL  
  3J-7354 [4] SEAL-O-RING  
  6J-2245 [1] SEAL-O-RING  
  234-4173 [4] SEAL-O-RING  
  307-3049 [1] PLUG AS  
8. 278-8719 [1] SHAFT-DRIVE  
9. 6J-7855 [1] RING-RETAINING  
10. 9S-8006 [2] PLUG (7/8-14-THD)  
11. 113-2004 M [4] BOLT-SOCKET HEAD (M12X1.75X45-MM)  
12. 278-8722 [1] ADAPTER  
13. 307-3049 J [1] PLUG AS  
14. 2M-9780 J [2] SEAL-O-RING  
15. 359-5230 [1] ROD-PISTON  
   
    AVAILABLE REPAIR KIT(S):
  307-3043 J [1] KIT-SEAL (PISTON PUMP)  
    (INCLUDES O-RINGS SEALS, LIP SEAL, SEAL RINGS & PLUG-SPECIAL)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP50670356
 

341-7659: PUMP GP-PISTON

341-7659 PUMP GP-PISTON -HIGH FLOW
S/N MBT2345-2347; MBT2425-UP
PART OF 258-2557 PUMP & MTG GP-WORK TOOL, 258-3401 PUMP GP-PISTON & GEAR
AN ATTACHMENT
i04454872 SEBP5067
3417659 PUMP GP-PISTON Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 258-5193 Y [1] ROTATING GP-PUMP  
2. 335-8209 [1] PISTON-CONTROL  
3. 274-7452 [1] LINK-CONTROL  
4. 197-1762 [1] SWASHPLATE  
5. 358-4996 [1] SHAFT-DRIVE  
6. 198-5351 [1] PLUG  
7. 127-9490 [1] SPRING (BIAS)  
8. 148-1238 [1] SHIM (3-MM THK)  
9. 185-0263 [1] BEARING  
10. 203-8609 [1] CUP-BEARING  
11. 105-3035 [1] CONE-BEARING  
12. 358-4999 [2] BEARING-CRADLE  
13. 5P-3863 [1] SEAL-O-RING  
14. 8C-3110 [1] RING-RETAINING  
15. 105-3489 M [4] BOLT-SOCKET HEAD (M12X1.75X80-MM)  
16. 335-8229 [1] PIN  
17. 9S-8006 [2] PLUG (7/8-14-THD)  
18. 2M-9780 [2] SEAL-O-RING  
19. 6R-7943 M [2] SCREW (M5X0.8X15-MM)  
20. 358-4997 [1] ADAPTER  
21. 348-5974 Y [1] VALVE GP-PUMP CONTROL (PRESSURE, FLOW COMPENSATOR)  
   
    AVAILABLE REPAIR KIT(S):
  345-8005 [1] KIT-SEAL (PISTON PUMP)  
    (INCLUDES SHAFT SEAL & O-RING SEAL)
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670357
 

258-3401: PUMP GP-PISTON & GEAR

258-3401 PUMP GP-PISTON & GEAR
S/N MBT1-2424
PART OF 258-3733 HYDRAULIC AR
AN ATTACHMENT
i02636754 SEBP5067
2583401 PUMP GP-PISTON & GEAR Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 258-2554 Y [1] PUMP GP-PISTON (HIGH FLOW)(WORK TOOL)  
2. 258-3261 Y [1] PUMP GP-GEAR (WORK TOOL HYDRAULIC)  
3. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
4. 5P-3863 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-5049 [1] SEAL-O-RING  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670358
 

258-3401: PUMP GP-PISTON & GEAR

258-3401 PUMP GP-PISTON & GEAR
S/N MBT2425-UP
PART OF 258-3733 HYDRAULIC AR
AN ATTACHMENT
i04523917 SEBP5067
2583401 PUMP GP-PISTON & GEAR Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 341-7659 CY [1] PUMP GP-PISTON (WORK TOOL)  
2. 258-3261 Y [1] PUMP GP-GEAR (WORK TOOL HYDRAULIC)  
3. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
4. 5P-3863 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
7. 8T-4956 M [2] BOLT (M12X1.75X35-MM)  
8. 8T-5049 [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP50670359
 

258-5193: ROTATING GP-PUMP

258-5193 ROTATING GP-PUMP
S/N MBT2345-UP
PART OF 341-7659 PUMP GP-PISTON
Type 1
AN ATTACHMENT
i02209374 SEBP5067
2585193 ROTATING GP-PUMP Parts scheme
  For full view, you need register

Parts for your 279C COMPACT TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 138-8175 [1] BEARING-SPHERICAL  
2. 168-7940 [3] PIN  
3. 096-0015 [1] RING-RETAINING  
4. 233-0455 [1] BARREL  
5. 168-7941 [1] SPRING  
6. 168-7942 [1] WASHER (28.2X36.5X2-MM THK)  
7. 168-7943 [9] PISTON AS-PUMP  
8. 258-5194 [1] PLATE  
9. 175-6796 [1] PLATE-VALVE  
 

Information:

Caterpillar Parts SIS Catalog 279C :

PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2556 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-GEAR
258-3402 PUMP & MTG GP-GEAR
MOUNTING GP-CYLINDER
286-9248 MOUNTING GP-CYLINDER
MOUNTING GP-CYLINDER
165-8731 MOUNTING GP-CYLINDER
MOUNTING GP-CYLINDER
156-0891 MOUNTING GP-CYLINDER
MOUNTING GP-CYLINDER
154-5011 MOUNTING GP-CYLINDER
MOTOR & MTG GP-HYDRAULIC FAN
258-2579 MOTOR & MTG GP-HYDRAULIC FAN
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP & MTG GP-WORK TOOL
258-2557 PUMP & MTG GP-WORK TOOL
PUMP GP-GEAR
258-2555 PUMP GP-GEAR
PUMP GP-GEAR
258-3261 PUMP GP-GEAR
PUMP GP-PISTON
258-2554 PUMP GP-PISTON
PUMP GP-PISTON
341-7659 PUMP GP-PISTON
PUMP GP-PISTON & GEAR
258-3401 PUMP GP-PISTON & GEAR
PUMP GP-PISTON & GEAR
258-3401 PUMP GP-PISTON & GEAR

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