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342-1891 PUMP & MTG GP-AUXILIARY S/N RHL1-UP; KES1-UP PART OF 389-2433 CONTROL AR-AUXILIARY, 385-4070, 385-4071, 385-4075, 385-4076, 433-7974, 433-7975, 433-7976, 433-7978 INSTALLATION AR-BLADE AN ATTACHMENT 312D L




HYDRAULIC SYSTEM

PUMP GP
 

#SEBP54580730
 

342-1891: PUMP & MTG GP-AUXILIARY

342-1891 PUMP & MTG GP-AUXILIARY
S/N RHL1-UP; KES1-UP
PART OF 389-2433 CONTROL AR-AUXILIARY, 385-4070, 385-4071, 385-4075, 385-4076, 433-7974, 433-7975, 433-7976, 433-7978 INSTALLATION AR-BLADE
AN ATTACHMENT
i04427663 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 342-1905 [1] SPACER  
2. 349-4069 Y [1] PUMP GP-GEAR (AUXILIARY)  
3. 222-2062 [1] COUPLING  
4. 273-8315 [1] SEAL-O-RING  
5. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
6. 8T-6466 M [2] BOLT (M10X1.5X60-MM)  
7. 095-1663 [1] SEAL-O-RING  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580731
 

279-7721: PUMP & MTG GP-MAIN HYDRAULIC

279-7721 PUMP & MTG GP-MAIN HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 270-5864, 270-5865 HYDRAULIC AR
Type 1
i02809006 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 255-3027 Y [1] COUPLING GP-PUMP  
2. 311-7404 Y [1] PUMP GP-MAIN HYDRAULIC  
3. 8T-4121 [12] WASHER-HARD (11X21X2.5-MM THK)  
4. 8T-4195 M [12] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580732
 

279-7721: PUMP & MTG GP-MAIN HYDRAULIC

279-7721 PUMP & MTG GP-MAIN HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 270-5864, 270-5865 HYDRAULIC AR
Type 2
i05231369 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 255-3027 Y [1] COUPLING GP-PUMP  
2. 391-9417 CY [1] PUMP GP-MAIN HYDRAULIC  
3. 8T-4121 [12] WASHER-HARD (11X21X2.5-MM THK)  
4. 8T-4195 M [12] BOLT (M10X1.5X30-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580733
 

341-2860: PUMP GP-GEAR

341-2860 PUMP GP-GEAR
S/N RHL1-UP; KES1-UP
PART OF 391-9417 PUMP GP-MAIN HYDRAULIC
i04236791 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
   
    AVAILABLE REPAIR KIT(S):
  327-8740 [1] KIT-SEAL (GEAR PUMP)  
    (KIT INCLUDES GASKETS, LIP TYPE SEAL, SEAL & RETAINING RING)
 

#SEBP54580734
 

349-4069: PUMP GP-GEAR

349-4069 PUMP GP-GEAR
S/N RHL1-UP; KES1-UP
PART OF 342-1891 PUMP & MTG GP-AUXILIARY
AN ATTACHMENT
i04428247 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
    (NO BREAKDOWN OF SERVICEABLE PARTS AVAILABLE AT TIME OF PUBLICATION)
 

#SEBP54580735
 

311-7404: PUMP GP-MAIN HYDRAULIC

311-7404 PUMP GP-MAIN HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 279-7721 PUMP & MTG GP-MAIN HYDRAULIC
Type 1
i02809005 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 111-9916 Y [1] VALVE GP-SOLENOID (PRESSURE REDUCING)(PRESSURE REDUCING)  
2. 165-2793 [2] RETAINER  
3. 165-2801 [2] BEARING-ROLLER  
4. 353-5837 [1] SEAL-LIP TYPE  
5. 165-2804 [1] FLANGE  
6. 165-2805 [2] BLOCK  
7. 165-3838 [1] BARREL AS  
8. 165-3839 [1] BARREL AS  
9. 165-3847 [18] PISTON AS  
10. 165-3853 [1] COVER  
11. 173-1203 [1] PUMP GP-GEAR (BLADE)  
  327-8740 [1] KIT-SEAL (GEAR PUMP)(GEAR PUMP)  
    (INCLUDES RING, GASKET & SEALS)
12. 176-8131 [2] SPACER-SPECIAL  
13. 176-8132 [2] BEARING  
14. 190-4896 [2] PLUG  
15. 192-0573 [4] PIN-DOWEL  
16. 199-0518 [2] SEAL-O-RING  
17. 207-2985 [2] ORIFICE  
18. 225-6216 [1] GASKET  
19. 267-1628 [1] SHAFT-DRIVE  
20. 267-1629 [1] SHAFT-DRIVEN  
21. 267-8084 [2] BEARING-NEEDLE  
22. 268-6263 [2] CAM  
23. 268-6265 [1] PLATE  
24. 269-2433 [4] BEARING-CRADLE  
25. 282-9155 Y [2] HEAD GP-PUMP  
26. 282-9192 [1] CASE-FLANGE  
27. 298-5732 [2] RETAINER-BALL  
28. 311-7407 [1] BLOCK-PORT  
30. 094-1875 [6] DOWEL  
31. 094-1882 [12] PLUG  
32. 095-1663 [1] SEAL-O-RING  
34. 165-2799 [12] SPRING  
35. 189-9763 [4] SEAL-O-RING  
36. 1H-7339 [1] SEAL-O-RING  
37. 1J-6472 [2] RING-RETAINING  
38. 273-8320 [1] SEAL-O-RING  
39. 3J-1907 [3] SEAL-O-RING  
40. 6V-8144 [2] RING-RETAINING  
41. 7I-2272 M [2] BOLT (M5X0.8X12-MM)  
42. 7X-2553 M [5] BOLT (M16X2X40-MM)  
43. 7X-2556 M [1] BOLT (M16X2X100-MM)  
44. 8C-3338 [4] DOWEL  
45. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
46. 8T-4136 M [2] BOLT (M10X1.5X25-MM)  
47. 8T-4137 M [2] BOLT (M10X1.5X20-MM)  
48. 8T-4139 M [8] BOLT (M12X1.75X30-MM)  
49. 8T-4140 M [2] BOLT (M16X2X60-MM)  
50. 8T-4185 M [4] BOLT (M10X1.5X50-MM)  
51. 8T-7547 M [4] BOLT (M8X1.25X30-MM)  
52. 8T-9599 [1] RING-RETAINING  
53. 9S-4191 [3] PLUG (9/16-18-THD)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580736
 

311-7404: PUMP GP-MAIN HYDRAULIC

311-7404 PUMP GP-MAIN HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 279-7721 PUMP & MTG GP-MAIN HYDRAULIC
Type 2
i05295035 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 111-9916 Y [1] VALVE GP-SOLENOID (PRESSURE REDUCING)(PRESSURE REDUCING)  
3. 165-2801 [2] BEARING-ROLLER  
4. 353-5837 [1] SEAL-LIP TYPE  
5. 165-2804 [1] FLANGE  
6. 165-2805 [2] BLOCK  
7. 165-3838 [1] BARREL AS  
8. 165-3839 [1] BARREL AS  
9. 379-3002 C [2] PISTON AS  
    (EACH INCLUDES)
  [9] PISTON  
10. 165-3853 [1] COVER  
11. 173-1203 [1] PUMP GP-GEAR (BLADE)  
  327-8740 [1] KIT-SEAL (GEAR PUMP)(GEAR PUMP)  
    (INCLUDES RING, GASKET & SEALS)
12. 176-8131 [2] SPACER-SPECIAL  
13. 176-8132 [2] BEARING  
14. 190-4896 [2] PLUG  
15. 192-0573 [4] PIN-DOWEL  
16. 199-0518 [2] SEAL-O-RING  
17. 207-2985 [2] ORIFICE  
18. 225-6216 [1] GASKET  
19. 267-1628 [1] SHAFT-DRIVE  
20. 267-1629 [1] SHAFT-DRIVEN  
21. 267-8084 [2] BEARING-NEEDLE  
22. 268-6263 [2] CAM  
23. 268-6265 [1] PLATE  
24. 269-2433 [4] BEARING-CRADLE  
25. 282-9155 Y [2] HEAD GP-PUMP  
26. 282-9192 [1] CASE-FLANGE  
27. 353-5829 C [2] GUIDE-BALL  
28. 311-7407 [1] BLOCK-PORT  
30. 094-1875 [6] DOWEL  
31. 094-1882 [12] PLUG  
32. 095-1663 [1] SEAL-O-RING  
34. 165-2799 [12] SPRING  
35. 189-9763 [4] SEAL-O-RING  
36. 1H-7339 [1] SEAL-O-RING  
37. 1J-6472 [2] RING-RETAINING  
38. 273-8320 [1] SEAL-O-RING  
39. 3J-1907 C [2] SEAL-O-RING  
40. 6V-8144 [2] RING-RETAINING  
41. 7I-2272 M [2] BOLT (M5X0.8X12-MM)  
42. 7X-2553 M [5] BOLT (M16X2X40-MM)  
43. 7X-2556 M [1] BOLT (M16X2X100-MM)  
44. 8C-3338 [4] DOWEL  
45. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
46. 8T-4136 M [2] BOLT (M10X1.5X25-MM)  
47. 8T-4137 M [2] BOLT (M10X1.5X20-MM)  
48. 8T-4139 M [8] BOLT (M12X1.75X30-MM)  
49. 8T-4140 M [2] BOLT (M16X2X60-MM)  
50. 8T-4185 M [4] BOLT (M10X1.5X50-MM)  
51. 8T-7547 M [4] BOLT (M8X1.25X30-MM)  
52. 8T-9599 [1] RING-RETAINING  
53. 9S-4191 C [2] PLUG (9/16-18-THD)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580737
 

391-9417: PUMP GP-MAIN HYDRAULIC

391-9417 PUMP GP-MAIN HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 279-7721 PUMP & MTG GP-MAIN HYDRAULIC
i05231414 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 111-9916 Y [1] VALVE GP-SOLENOID (PRESSURE REDUCING)(PUMP CONTROL)  
2. 165-2799 [12] SPRING  
3. 165-2801 [2] BEARING-ROLLER  
4. 165-2804 [1] FLANGE  
5. 165-2805 [2] BLOCK  
6. 165-3838 [1] BARREL AS  
7. 165-3839 [1] BARREL AS  
8. 165-3853 [1] COVER  
9. 176-8131 [2] SPACER-SPECIAL  
10. 176-8132 [2] BEARING  
11. 190-4896 [2] PLUG  
12. 192-0573 [4] PIN-DOWEL  
13. 199-0518 [2] SEAL-O-RING  
14. 207-2985 [2] ORIFICE  
15. 225-6216 [1] GASKET  
16. 267-8084 [2] BEARING-NEEDLE  
17. 268-6263 [2] CAM  
18. 269-2433 [4] BEARING-CRADLE  
19. 273-8315 [1] SEAL-O-RING  
20. 282-9155 Y [2] HEAD GP-PUMP  
21. 282-9192 [1] CASE-FLANGE  
22. 341-2860 Y [1] PUMP GP-GEAR (PILOT)  
23. 353-5829 [2] GUIDE-BALL  
24. 353-5837 [1] SEAL-LIP TYPE  
25. 368-9994 [1] PLATE  
26. 368-9995 [2] GEAR (47-TEETH)  
27. 368-9996 [1] SHAFT-DRIVE  
28. 368-9997 [1] SHAFT-DRIVEN  
29. 379-3002 [2] PISTON AS  
    (EACH INCLUDES)
  165-3847 [9] PISTON AS  
  353-5825 [1] RETAINER  
30. 8T-9599 [1] RING-RETAINING  
31. 391-9438 [1] BLOCK-PORT  
32. 094-1875 [6] DOWEL  
33. 094-1882 [13] PLUG  
34. 9S-4191 [2] PLUG (9/16-18-THD)  
35. 189-9763 [4] SEAL-O-RING  
36. 1H-7339 [1] SEAL-O-RING  
37. 1J-6472 [2] RING-RETAINING  
38. 5P-2545 [1] SEAL-O-RING  
39. 3J-1907 [2] SEAL-O-RING  
40. 388-8368 [2] RING-RETAINING  
41. 6V-8757 [2] RING-RETAINING  
42. 7I-2272 M [2] BOLT (M5X0.8X12-MM)  
43. 7X-2553 M [5] BOLT (M16X2X40-MM)  
44. 7X-2556 M [1] BOLT (M16X2X100-MM)  
45. 2Y-5578 [4] PIN  
46. 8T-4121 [2] WASHER-HARD (11X21X2.5-MM THK)  
47. 8T-4136 M [4] BOLT (M10X1.5X25-MM)  
48. 8T-4139 M [8] BOLT (M12X1.75X30-MM)  
49. 8T-4140 M [2] BOLT (M16X2X60-MM)  
50. 8T-4185 M [4] BOLT (M10X1.5X50-MM)  
51. 8T-7547 M [4] BOLT (M8X1.25X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP54580738
 

274-2726: SCREEN GP-HYDRAULIC

274-2726 SCREEN GP-HYDRAULIC -TANK
S/N RHL1-UP; KES1-UP
PART OF 278-6662 TANK & FILTER GP-HYDRAULIC
i02817240 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 087-5317 [1] ROD  
2. 209-6002 [1] SCREEN AS (HYDRAULIC TANK)  
3. 259-0918 [1] GUIDE  
4. 095-1552 [1] SEAL-O-RING  
5. 095-6639 [1] SPRING  
6. 8T-4133 M [2] NUT (M10X1.5-THD)  
  M   METRIC PART
 

#SEBP54580739
 

394-4278: SCREEN GP-HYDRAULIC

394-4278 SCREEN GP-HYDRAULIC
S/N RHL1-UP; KES1-UP
PART OF 395-1575 TANK & FILTER GP-HYDRAULIC
i04971298 SEBP5458
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Parts for your 312D L EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 087-5317 [1] ROD  
2. 209-6002 [1] SCREEN AS (HYDRAULIC TANK)(HYDRAULIC TANK)  
3. 259-0918 [1] GUIDE  
4. 095-1552 [1] SEAL-O-RING  
5. 095-6639 [1] SPRING  
6. 8T-4133 M [2] NUT (M10X1.5-THD)  
  M   METRIC PART
 

Information:

Caterpillar Parts SIS Catalog 312D L :

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