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PRESSURE CONTROL VALVE (8P7791 N/S) Effective with Serial No. 31X1-UP Part of Transmission Hydraulic Control Note: Pressure Control Valve replaced by 8P7790 shown on Page 145 D6D


POWER TRAIN
VALVE GP-PRESSURE CONTROL
GEAR GP
HYDRAULIC SYSTEM
VALVE GP-RELIEF
POWER TRAIN
LINES GP-POWER TRAIN OIL

TRACK-TYPE TRACTOR D6D TRACK-TYPE TRACTOR 31X
 D6D TRACK-TYPE TRACTOR / POWERSHIFT / 31X00001-01496 (MACHINE) POWERED BY 3306 ENGINE XMBP9831 D6D 31X   (1979)

POWER TRAIN

VALVE GP-PRESSURE CONTROL
VALVE GP-PRESSURE CONTROL
8P-7791 VALVE GP-PRESSURE CONTROL
VALVE GP-PRESSURE CONTROL
8P-7790 VALVE GP-PRESSURE CONTROL
 

#XMBP98310230
 

8P-7791: VALVE GP-PRESSURE CONTROL

PRESSURE CONTROL VALVE (8P7791 N/S)
Effective with Serial No. 31X1-UP
Part of Transmission Hydraulic Control
Note: Pressure Control Valve replaced by 8P7790 shown on Page 145
c210775 XMBP9831
8P7791 VALVE GP-PRESSURE CONTROL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2M-7041 [1] SLUG  
2. 1P-8612 [1] STOP  
3. 9M-2025 [1] SPOOL  
4. 3P-0394 [1] SPRING  
5. 8S-9198 [1] PISTON  
6. 5M-7915 [4] SPACER 0.77 mm(.030 in.) thick  
  5M-7914 [3] SPACER 0.26 mm(.010 in.) thick  
7. 8M-5248 [3] SEAL  
8. 9S-2753 [1] COVER  
9. 3P-0391 [1] VALVE  
10. 1P-9665 [1] RETAINER  
11. 6D-3036 [2] DOWEL  
12. 8M-8132 [1] SPRING  
13. 6P-4711 [1] SPOOL ASSEM.  
    (Includes)
14. 6P-8848 [1] PLUNGER  
15. 9H-2367 [1] SPRING  
16. 6P-4717 [1] SLEEVE  
17. 2M-8191 [1] RING  
18. 1P-8573 [1] COVER  
19. 0S-1594 [7] BOLT  
20. 5M-6214 [2] PLUG  
 

#XMBP98310231
 

8P-7790: VALVE GP-PRESSURE CONTROL

8P7790 PRESSURE CONTROL VALVE GROUP-Field Replacement
c210776 XMBP9831
8P7790 VALVE GP-PRESSURE CONTROL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [9] BOLT  
2. 5M-2894 [2] WASHER  
3. 8M-4433 [1] SEAL  
4. 1P-9666 [1] COVER  
5. 9M-2025 [1] SPOOL  
6. 3P-0394 [1] SPRING  
7. 8S-9198 [1] PISTON  
8. 8M-5248 [3] SEAL  
9. 5M-7914 [3] SPACER .254 mm(.010 in.) thick  
  5M-7915 [4] SPACER .914 mm(.036 in.) thick  
10. 9S-2753 [1] COVER  
11. 3P-0391 [1] VALVE  
12. 6D-3036 [2] DOWEL  
13. 1P-9665 [1] RETAINER  
14. 8M-8132 [1] SPRING  
15. 6P-4711 [1] SPOOL ASSEM.  
    (Includes)
16. 6P-8848 [1] PLUNGER  
17. 9H-2367 [1] SPRING  
18. 6P-4717 [1] SLEEVE  
19. 2M-8191 [1] RING  
20. 1P-8573 [1] COVER  
21. 2M-7041 [1] SLUG  
22. 1P-8612 [1] STOP  
  5M-6214 H [2] PLUG  
  4B-9880 H [2] BALL  
  H   NOT SHOWN
 

#XMBP98310232
 

9M-2041: GEAR GP-TRANSFER

TRANSFER GEAR (9M2041 N/S)
Effective with Serial No. 31X1-UP
Part of 7M1310 and 7G4245 Powershift Transmission
Arrangements
j16279e XMBP9831
9M2041 GEAR GP-TRANSFER Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7G-1026 [1] CASE ASSEM.  
2. 4B-9783 [1] BALL  
3. 9M-2001 [1] DOWEL  
4. 8M-8659 [3] DOWEL  
5. 1D-4719 [3] NUT  
6. 3B-4508 [17] LOCKWASHER  
7. 9M-2012 [1] SPACER  
8. 5M-7339 [1] WASHER  
9. 0S-1594 [6] BOLT  
10. 9M-1367 [1] LOCK  
11. 2M-0138 [1] DOWEL  
12. 7M-1154 [1] RACE & ROLLER ASSEM. (Inner)  
13. 9M-1499 [1] RACE (Outer)  
14. 0S-1585 [24] BOLT  
15. 9M-2021 [1] GASKET  
16. 9M-1497 [5] LOCK  
17. 9M-2038 [1] GEAR (37 Teeth)  
18. 9M-2045 [1] PINION (17 Teeth)  
19. 2S-1437 [1] RACE (Outer)  
20. 9M-1998 [1] RACE & ROLLER ASSEM. (Inner)  
21. 4M-3122 [2] DOWEL  
22. 9M-1498 [1] CAGE  
23. 8H-8024 [1] RING  
24. 5M-9644 [1] RACE & ROLLER ASSEM.  
25. 1M-4095 [2] RACE & ROLLER ASSEM. (Inner)  
26. 9M-2042 [2] RACE (Outer)  
27. 1A-5823 [2] LOCK  
28. 2A-3746 [3] PLUG  
29. 9M-2039 [1] GEAR (33 Teeth)  
30. 5M-7329 [1] SEAL  
 

#XMBP98310233
 

8M-8551: VALVE GP-RELIEF

8M8551 RELIEF VALVE GROUP
Effective with Serial No. 31X1~31X889
Part of 7M1310 Powershift Transmission Arrangement
j388e XMBP9831
8M8551 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5M-7908 [1] PLUG ASSEM.  
  3J-1907 [1] SEAL  
    (PART OF PLUG ASSEM. 5M7908)
  8M-8597 [1] SPRING  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  4M-8815 [1] COVER  
  8M-5254 [1] SEAL  
  8M-8598 [1] SPOOL  
  8M-8599 [1] BODY  
 

#XMBP98310234
 

7G-4491: VALVE GP-RELIEF

7G4491 RELIEF VALVE GROUP
Effective with Serial No. 31X890-UP
Part of 7G4245 Powershift Transmission Arrangement
j16358e XMBP9831
7G4491 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] PLATE  
  7B-3028 [1] SCREW  
2. 0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
3. 4M-8815 [1] COVER  
4. 8M-5254 [1] SEAL  
5. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
6. 8M-8598 [1] SPOOL  
7. 2S-5816 [1] SPRING  
 

#XMBP98310235
 

8P-5223: LINES GP-POWER TRAIN OIL

POWER TRAIN OIL LINES (8P5223 N/S)-Part 1 of 3
Effective with Serial No. 31X1~31X1011
j14279e XMBP9831
8P5223 LINES GP-POWER TRAIN OIL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8P-5194 [1] HOSE ASSEM.  
2. 9M-4584 [1] CONNECTOR  
3. 2M-9780 [1] SEAL  
4. 0S-1588 [6] BOLT  
5. 3B-4506 [4] LOCKWASHER  
6. 6P-1090 [1] HOSE ASSEM.  
  5P-0180 H HOSE 64cm  
7. 5S-6102 [1] STEM ASSEM. (90DEGREES)  
8. 2M-5762 [1] FLANGE  
9. 5S-5289 [1] STEM ASSEM. (67.5DEGREES)  
10. 3S-7166 [2] SLEEVE  
11. 8M-4987 [3] SEAL  
12. 4B-4278 [6] WASHER  
13. 1P-4577 [2] FLANGE  
14. 8P-5191 [2] TUBE ASSEM.  
15. 5P-3166 [1] TEE  
  8M-0506 [1] CONNECTOR  
16. 3J-1907 [3] SEAL  
17. 1P-1441 [1] NUT  
  030-8144 [1] REDUCER  
18. 8P-5113 [1] TUBE ASSEM.  
19. 005-4362 [4] CONNECTOR  
  3K-0360 [4] SEAL  
20. 8P-5193 [1] TUBE ASSEM.  
21. 4S-3652 [1] TEE  
22. 8P-5192 [1] TUBE ASSEM.  
23. 030-7947 [2] ELBOW  
24. 1A-2029 [2] BOLT  
25. 3P-9136 [1] ELBOW  
 

#XMBP98310236
 

8P-5223: LINES GP-POWER TRAIN OIL

POWER TRAIN OIL LINES (8P5223 N/S)-Part 2 of 3
Effective with Serial No. 31X1~31X1011
9M8669 Screen Group parts are shown on Page 154
j14280e XMBP9831
8P5223 LINES GP-POWER TRAIN OIL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1588 [3] BOLT  
2. 3B-4506 [18] LOCKWASHER  
3. 8P-4161 [1] GUIDE ASSEM.  
4. 8P-4165 [1] PLUNGER ASSEM. (Percentage SCALE)  
  3Y-5362 [1] PLUNGER ASSEM. (Liter Scale)  
  1S-1409 [1] CLIP  
5. 1D-4717 [2] NUT  
6. 0L-1351 [1] BOLT  
7. 8P-5359 [1] BRACKET ASSEM.  
8. 9F-2978 [3] NUT (Weld)  
9. 1A-2029 [12] BOLT  
10. 1F-3133 [1] GASKET  
11. 9M-2968 [1] TUBE ASSEM.  
12. 9M-8669 Y [1] SCREEN GROUP  
    (See Separate Illustration)
13. 1S-0004 [1] SEAL  
14. 9M-9037 [1] FLANGE  
15. 4B-4278 [3] WASHER  
16. 9S-9449 [1] TUBE ASSEM.  
17. 5P-0597 [2] CLAMP  
18. 5P-1291 H HOSE 21cm  
19. 9S-9447 [1] TUBE ASSEM.  
20. 8M-4390 [1] SEAL  
21. 8P-4163 [1] GUIDE ASSEM.  
22. 7B-1597 [1] CLIP  
23. 5P-1200 H TUBE 34cm  
24. 0T-0102 [2] BOLT  
25. 8B-6127 [1] CLIP  
26. 5P-1200 H TUBE 39cm  
27. 7M-1588 [2] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#XMBP98310237
 

8P-5223: LINES GP-POWER TRAIN OIL

POWER TRAIN OIL LINES (8P5223 N/S)-Part 3 of 3
Effective with Serial No. 31X1~31X1011
3S1741 Filter Group and 3P6816 Pump Group parts are shown on Pages 154 and 155
j14281e XMBP9831
8P5223 LINES GP-POWER TRAIN OIL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1A-2029 [9] BOLT  
2. 3B-4506 [20] LOCKWASHER  
3. 4B-4278 [24] WASHER  
4. 9M-5962 [1] ELBOW  
5. 0S-1571 [1] BOLT  
6. 0S-1588 [22] BOLT  
7. 8M-4987 [6] SEAL  
8. 8M-4436 [2] SEAL  
9. 5P-0597 [2] CLAMP  
10. 5P-1291 H HOSE 21cm  
11. 4D-9517 [1] CLIP  
12. 3P-8117 [1] HOSE ASSEM.  
13. 3P-6816 Y [1] PUMP GROUP  
    (See Separate Illustration)
14. 1P-1556 [1] HOSE ASSEM.  
15. 1P-4577 [6] FLANGE  
16. 7S-1636 [1] PLATE  
17. 1D-4717 [6] NUT  
18. 3S-1741 Y [1] FILTER GROUP  
    (See Separate Illustration)
19. 9S-9407 [1] TUBE ASSEM.  
20. 8S-2957 [1] BRACKET  
21. 0S-1619 [2] BOLT  
22. 2K-5232 [1] SPACER  
23. 6F-0127 [1] SPACER  
24. 8F-8882 [1] SEAL  
25. 030-7947 [1] ELBOW  
26. 033-6042 [2] SEAL  
27. 9S-9393 [1] TUBE ASSEM.  
28. 030-7942 [1] ELBOW  
29. 9M-3832 [1] PLATE  
30. 5S-0803 [1] HOSE ASSEM.  
31. 1P-4576 [4] FLANGE  
  8M-4988 [2] SEAL  
32. 5S-0786 [1] HOSE ASSEM.  
33. 9M-2740 [1] TUBE ASSEM.  
34. 0L-2070 [2] BOLT  
  H   ORDER BY THE CENTIMETRE
  Y   SEPARATE ILLUSTRATION
 

#XMBP98310238
 

8P-5223: LINES GP-POWER TRAIN OIL

POWER TRAIN OIL LINES (8P5223 N/S)-Part 1 of 3
Effective with Serial No. 31X1012~31X1133
j17667e XMBP9831
8P5223 LINES GP-POWER TRAIN OIL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8P-5192 [1] TUBE ASSEM.  
2. 005-4362 [4] CONNECTOR  
  3K-0360 [4] SEAL  
3. 8P-5191 [2] TUBE ASSEM.  
4. 8P-5194 [1] HOSE ASSEM.  
5. 8M-4436 [1] SEAL  
6. 1A-2029 C [8] BOLT (28.5mm Long)  
7. 3B-4506 [14] LOCKWASHER  
8. 9M-2740 [1] TUBE ASSEM.  
9. 5P-0597 [2] CLAMP  
10. 5P-1291 H HOSE 21cm  
11. 8M-4987 [4] SEAL  
12. 4B-4278 C [4] WASHER  
13. 9M-5962 [1] ELBOW  
14. 0S-1571 [1] BOLT (44.5mm Long)  
15. 0S-1588 [8] BOLT  
16. 1P-1556 [1] HOSE ASSEM.  
17. 5M-2894 C [4] WASHER  
18. 1P-4577 [2] FLANGE  
19. 3P-9136 [1] ELBOW  
20. 7M-1588 [2] GASKET  
21. 8P-4163 [1] GUIDE ASSEM.  
22. 1D-4717 C [3] NUT  
23. 8P-4161 [1] GUIDE ASSEM.  
24. 5K-0461 C [1] CLIP  
25. 3Y-5362 [1] PLUNGER ASSEM. (Liter Scale)  
  8P-4165 [1] PLUNGER ASSEM. (Percentage Scale)  
26. 5P-1075 C [3] WASHER  
27. 7G-0748 C [1] SUPPORT  
28. 0S-1594 C [2] BOLT  
29. 9M-4584 [1] CONNECTOR  
  2M-9780 [1] SEAL  
30. 5P-3166 [1] TEE  
  8M-0506 [1] COMMECTOR  
31. 3J-1907 [1] SEAL  
32. 1P-1441 [1] NUT  
33. 030-8144 [1] REDUCER  
34. 8P-5113 [1] TUBE ASSEM.  
35. 8P-5193 [1] TUBE ASSEM.  
36. 4S-3652 [1] TEE  
37. 030-7947 [2] ELBOW  
38. 0T-0102 [2] BOLT  
39. 8B-6127 [1] CLIP  
40. 5P-1200 H TUBE 39cm  
41. 5P-1200 H TUBE 34cm  
42. 7B-1597 [1] CLIP  
  C   INDICATES CHANGE.
  H   ORDER BY THE CM
 

#XMBP98310239
 

8P-5223: LINES GP-POWER TRAIN OIL

POWER TRAIN OIL LINES (8P5223 N/S)-Part 2 of 3
Effective with Serial No. 31X1012~31X1133
9M8669 Screen Group and 3P6816 Pump Group parts are shown on Pages 154 and
155
j17668e XMBP9831
8P5223 LINES GP-POWER TRAIN OIL Parts scheme
  For full view, you need register

Parts for your D6D TRACK-TYPE TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1588 C [16] BOLT  
2. 3B-4506 [16] LOCKWASHER  
3. 8M-4987 C [5] SEAL  
4. 6P-1090 [1] HOSE ASSEM.  
5. 9S-9393 [1] TUBE ASSEM.  
  8M-4436 [1] SEAL  
6. 1A-2029 [12] BOLT  
7. 3P-6816 Y [1] PUMP GROUP  
    (See Separate Illustration)
8. 8F-8882 [1] SEAL  
9. 5M-2894 C [12] WASHER  
10. 1P-4577 C [6] FLANGE  
11. 9P-2760 C [1] HOSE ASSEM.  
12. 1P-4578 C [2] FLANGE  
13. 0T-0772 C [4] BOLT  
  5P-8244 C [4] WASHER  
14. 9P-2759 C [1] HOSE ASSEM.  
  8M-4986 C [1] SEAL  
15. 5P-0597 [2] CLAMP  
16. 5P-1291 H HOSE 21cm  
17. 9S-9447 [1] TUBE ASSEM.  
18. 8M-4390 [1] SEAL  
19. 9S-9449 [1] TUBE ASSEM.  
20. 4B-4278 C [3] WASHER  
21. 9M-8669 Y [1] SCREENGROUP  
    (See Separate Illustration)
22. 9M-2968 [1] TUBE ASSEM.  
23. 1F-3133 [1] GASKET  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CM
 

Information:

Caterpillar Parts SIS Catalog D6D :

VALVE GP-SELECTOR
1P-6591 VALVE GP-SELECTOR
CONTROL GP-TRANSMISSION HYD
8M-6350 CONTROL GP-TRANSMISSION HYD
7G-4244 PLANETARY GP
PLANETARY GP
7G-4244 PLANETARY GP
9M-2040 PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
PLANETARY TRANSMISSION
9M-2040 PLANETARY TRANSMISSION
VALVE GP-PRESSURE CONTROL
8P-7790 VALVE GP-PRESSURE CONTROL
GEAR GP-TRANSFER
9M-2041 GEAR GP-TRANSFER
VALVE GP-RELIEF
8M-8551 VALVE GP-RELIEF
VALVE GP-RELIEF
7G-4491 VALVE GP-RELIEF
LINES GP-POWER TRAIN OIL
8P-5223 LINES GP-POWER TRAIN OIL
8P-5223 LINES GP-POWER TRAIN OIL
8P-5223 LINES GP-POWER TRAIN OIL
LINES GP-POWER TRAIN OIL
8P-5223 LINES GP-POWER TRAIN OIL

Truck sale:

Caterpillar D6D
 
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HOLT CAT
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TOROMONT CAT
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