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8J6312 PUMP CONTROL HEAD GROUP--Type 2 Part of 8J498 Slipper Pump Group shown on Pages 280, 282 and 283A 3G3921 and 8J6103 Valve parts are shown on Pages 284C and 285 140G




HYDRAULIC SYSTEM

PUMP GP
 

#SEBP10920680
 

8J-6312: HEAD GP-PUMP CONTROL

8J6312 PUMP CONTROL HEAD GROUP--Type 2
Part of 8J498 Slipper Pump Group shown on Pages 280, 282 and 283A
3G3921 and 8J6103 Valve parts are shown on Pages 284C and 285
c171387 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-0415 [1] HEAD  
2. 9S-8002 [5] PLUG  
  3J-7354 [5] SEAL  
3. 2D-0598 [2] SEAL  
4. 8J-6066 [1] COVER  
5. 1B-2790 [2] BOLT  
6. 3B-4505 [3] LOCKWASHER  
7. 8J-0476 [1] COVER  
8. 8J-6230 C [1] SPACER  
9. 2K-8198 [1] SEAL  
10. 4J-2506 [1] SEAL  
11. 9S-8001 [3] PLUG  
  4J-7533 [3] SEAL  
12. 8J-6023 [1] STEM  
13. 8J-0475 [1] HOUSING  
14. 1D-4541 [1] BOLT  
15. 8J-6325 [1] SPRING  
16. 4D-9986 [1] SEAL  
17. 8J-6231 [4] RETAINER  
18. 8J-1541 [1] COVER  
  8H-3127 [2] BOLT  
  3B-4504 [2] LOCKWASHER  
19. 8J-5593 [1] PISTON  
20. 4M-8303 [1] SEAL  
21. 8J-6103 Y [1] VALVE GROUP  
    (Separate Illustration)
22. 8J-6314 [1] CUP  
23. 8J-8725 [7] SEAL  
24. 8J-5472 [7] RING  
25. 3G-3921 YC [1] VALVE GROUP  
    (Separate Illustration)
26. 8J-2028 [1] SPACER  
27. 8J-6305 [1] SPRING  
28. 8J-6306 [1] SPRING  
29. 8J-6303 [1] SEAT  
30. 8J-5842 [1] PISTON  
31. 8J-8462 [2] SHIM  
32. 6F-8205 [3] WASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10920681
 

8J-6312: HEAD GP-PUMP CONTROL

8J6312 PUMP CONTROL HEAD GROUP--Type 3
Part of 8J498 Slipper Pump Group shown on Pages 280, 282 and 283A
3G3921 and 8J6103 Valve parts are shown on Pages 284C and 285
c221889 SEBP1092
  For full view, you need register

Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-0415 [1] HEAD  
2. 9S-8002 [5] PLUG  
  3J-7354 [5] SEAL  
3. 2D-0598 [2] SEAL  
4. 8J-6066 [1] COVER  
5. 1B-2790 [2] BOLT  
6. 3B-4505 [3] LOCKWASHER  
7. 8J-0476 [1] COVER  
8. 8J-6230 [1] SPACER  
9. 2K-8198 [1] SEAL  
10. 4J-2506 [1] SEAL  
11. 9S-8001 [3] PLUG  
  4J-7533 [3] SEAL  
12. 8J-8462 [2] SHIM  
13. 3G-1256 C [1] HOUSING  
14. 1D-4541 [1] BOLT  
15. 3G-1682 C [1] SPRING  
16. 3D-2824 C [1] SEAL  
17. 3G-4457 C [1] SPACER  
  3G-1681 C [1] RETAINER  
18. 3G-1278 C [1] PLUG  
19. 3G-1683 C [1] PISTON  
20. 4J-5268 C [1] SEAL  
21. 6J-3134 C [1] SEAL  
22. 8J-6314 [1] CUP  
23. 8J-8725 [7] SEAL  
24. 8J-5472 [7] RING  
25. 3G-3921 Y [1] VALVE GROUP  
    (Separate Illustration)
26. 8J-2028 [1] SPACER  
27. 8J-6305 [1] SPRING  
28. 8J-6306 [1] SPRING  
29. 8J-6303 [1] SEAT  
30. 8J-5842 [1] PISTON  
31. 8J-6103 Y [1] VALVE GROUP  
    (Separate Illustration)
32. 6F-8205 [3] WASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10920682
 

3G-3929: VALVE GP

3G3929 FOLLOWER VALVE GROUP
Provides Field Replacement for 3G3909 Spool and 3G3919 Sleeve shown on Page 284C
c217077 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3D-8317 [1] RING-RETAINING  
2. 8J-2027 [1] SPACER  
3. 3G-3917 [1] STOP  
4. 3G-3909 [1] SPOOL  
5. 3G-3919 [1] SLEEVE-FOLLOW UP  
6. 3G-3916 [1] RING-RETAINING  
 

#SEBP10920683
 

3G-3921: VALVE GP-SERVO

3G3921 SERVO VALVE GROUP
Part of 8J6312 Pump Control Head Group shown on Page 284B
c228012 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-4574 [1] PISTON  
2. 8J-2032 [1] PISTON  
3. 2L-6726 [1] RING  
4. 8J-2040 [1] INSERT  
5. 8S-3159 C [1] SETSCREW  
6. 8J-8345 [1] CARTRIDGE  
7. 3G-3919 [1] SLEEVE  
8. 3G-3917 [1] STOP  
9. 3G-3916 [1] RING  
10. 8J-2027 [1] SPACER  
11. 3D-8317 [1] RING  
12. 3G-3909 [1] SPOOL  
  C   INDICATES CHANGE
 

#SEBP10920684
 

8J-6103: VALVE GP

8J6103 PRESSURE REDUCING VALVE GROUP
Part of 8J6312 Pump Control Head Group shown on Page 284
c200162 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8006 [1] PLUG  
2. 2M-9780 [1] SEAL  
3. 9S-4982 [1] SPRING  
4. 8J-6076 [1] PISTON  
5. 8J-2030 [1] PISTON  
6. 8J-6075 [1] CARTRIDGE  
7. 8J-6100 [1] PISTON  
 

#SEBP10920685
 

8J-6316: SERVO VALVE GROUP

8J6316 SERVO VALVE GROUP
Part of 8J6312 Pump Control Head Group shown on Page 284
c154252 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-4574 [1] PISTON  
2. 8J-2032 [1] PISTON  
3. 2L-6726 [1] RING  
4. 8J-2040 [1] INSERT  
5. 5B-9324 [1] SETSCREW  
6. 8J-8345 [1] CARTRIDGE  
7. 8J-8374 C [1] VALVE GROUP  
    (Includes)
8. 8J-2034 [1] STOP  
9. 3H-1118 [1] PIN  
10. 8J-2027 [1] SPACER  
11. 3D-8317 [1] RING  
  C   INDICATES CHANGE
 

#SEBP10920686
 

8D-7900: LINES GP-PUMP

8D7900 PUMP LINES GROUP--Part 1 of 3--Side View
Serial No. 72V823 to 72V2958 inclusive and 81V382 to 81V743 inclusive
c207389 SEBP1092
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Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-4975 [2] HOSE 5 IN EACH  
2. 5P-2230 [4] CLAMP  
3. 8D-6774 [1] TUBE ASSEM.  
4. 030-7935 [1] CONNECTOR  
  7M-8485 [1] SEAL  
5. 0S-1594 [3] BOLT  
  4B-4278 [3] WASHER  
6. 3B-4506 [6] LOCKWASHER  
7. 8D-6811 [1] PLATE  
8. 3B-1915 [3] BOLT  
  0L-1319 [3] WASHER  
  1P-7115 [3] GROMMET ASSEM.  
9. 005-4362 [1] ELBOW  
10. 3K-0360 [4] SEAL  
11. 2R-6276 [2] CONNECTOR  
12. 3D-2824 [6] SEAL  
13. 8M-0505 [1] CONNECTOR  
14. 030-7950 C [1] ELBOW  
15. 8D-0407 [2] TUBE ASSEM.  
16. 030-7943 [2] ELBOW  
17. 9D-0884 [1] CONNECTOR  
18. 030-7936 [1] CONNECTOR  
19. 3J-1907 [2] SEAL  
20. 030-7944 C [2] ELBOW  
21. 2R-6806 [1] CONNECTOR  
22. 9D-5903 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 71 cm(27.95 in.)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  8S-6392 [1] COUPLING ASSEM. (90 degrees)  
  4S-5414 [2] SLEEVE  
23. 6K-3607 [1] CONNECTOR  
24. 9D-5992 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 55 cm(21.65 in.)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  4S-5414 [2] SLEEVE  
  1P-9919 [1] COUPLING ASSEM. (45 degrees)  
25. 9D-5899 C [2] HOSE ASSEM. (not serv)  
    For service of each furnish:
  5P-0180 H HOSE 82 cm(32.28 in.)  
  8S-3759 [2] COUPLING ASSEM.  
  3S-7166 [2] SLEEVE  
26. 9D-5972 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 67 cm(26.38 in.)  
  8S-6417 [2] COUPLING ASSEM.  
  4S-5414 [2] SLEEVE  
27. 9D-6274 C [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0179 H HOSE 34 cm(13.40 in.)  
  8S-6391 [1] COUPLING ASSEM. (90 degrees)  
  3S-8606 [2] SLEEVE  
  8S-4055 [1] COUPLING ASSEM. (straight)  
28. 8D-9918 [1] PLATE ASSEM.  
    (Includes)
29. 9F-2978 [2] NUT  
30. 9D-5911 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0179 H HOSE 61 cm(24.01 in.)  
  8S-6391 [1] COUPLING ASSEM. (90 degrees)  
  3S-8606 [2] SLEEVE  
  8S-4055 [1] COUPLING ASSEM. (straight)  
31. 2M-9780 [1] SEAL  
32. 061-9258 [1] TEE  
  030-3978 [1] CONNECTOR  
  3J-7354 [1] SEAL  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

#SEBP10920687
 

8D-7900: LINES GP-PUMP

8D7900 PUMP LINES GROUP--Part 2 of 3--Top View
Serial No. 72V823 to 72V2958 inclusive and 81V382 to 81V743 inclusive
8J7239 Valve parts are shown on Page 289
c205677 SEBP1092
  For full view, you need register

Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6K-3607 [2] CONNECTOR  
  2M-9780 [2] SEAL  
2. 4S-1962 [9] CLIP  
3. 9D-5872 C [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0179 H HOSE 434 cm(170.9 in.)  
  8S-4055 [1] COUPLING ASSEM. (straight)  
  8S-6391 [1] COUPLING ASSEM. (90 degrees)  
  3S-8606 [2] SLEEVE  
4. 8M-0505 [2] CONNECTOR  
  3K-0360 [2] SEAL  
5. 4S-6797 [1] CONNECTOR  
  2S-4078 [1] SEAL  
6. 9D-5993 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0181 H HOSE 37 cm(14.57 in.)  
  8S-3918 [1] COUPLING ASSEM. (straight)  
  1P-9589 [1] COUPLING ASSEM. (90 degrees)  
  3S-7252 [2] SLEEVE  
7. 9D-5994 [1] HOSE ASSEM.  
    (Includes)
  5P-0181 H HOSE 62.8 cm(24.72 in.)  
8. 3S-7252 [2] SLEEVE  
9. 8K-5114 [1] COUPLING ASSEM. (90 degrees)  
10. 7S-0574 [1] STEM ASSEM. (60 degrees)  
11. 030-7945 [1] ELBOW  
12. 7M-8485 [2] SEAL  
13. 030-7935 [1] CONNECTOR  
14. 0T-0319 [3] BOLT  
  2H-3920 [3] LOCKWASHER  
  8D-7185 [3] WASHER  
  8D-0983 [3] MOUNTING  
15. 9D-6361 [1] PLATE ASSEM.  
16. 8J-7239 Y [1] VALVE GROUP  
    (Separate Illustration)
17. 9D-9284 [1] PIN (large)  
  4J-5325 [1] PIN (small)  
  3B-4607 [1] COTTER PIN  
18. 9D-5990 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0179 H HOSE 391 cm(153.93 in.)  
  8S-4055 [1] COUPLING ASSEM. (straight)  
  8S-6391 [1] COUPLING ASSEM. (90 degrees)  
  3S-8606 [2] SLEEVE  
19. 0T-0772 [4] BOLT  
  4D-6433 [4] WASHER  
20. 1P-4578 [2] FLANGE  
21. 4J-0522 [1] SEAL  
22. 0T-0102 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE CENTIMETRE
 

#SEBP10920688
 

8D-7900: LINES GP-PUMP

8D7900 PUMP LINES GROUP--Part 3 of 3--Top View
Serial No. 72V823 to 72V2958 inclusive and 81V382 to 81V743 inclusive
8J2011 Valve parts are shown on Page 289
c209641 SEBP1092
  For full view, you need register

Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-2011 Y [1] VALVE GROUP  
    (Separate Illustration)
  3B-1915 [3] BOLT  
  0L-1319 [6] WASHER  
  1P-7115 [3] GROMMET ASSEM.  
2. 3B-4506 [5] LOCKWASHER  
3. 0T-0573 [2] BOLT  
4. 030-7942 [1] ELBOW  
5. 3J-1907 [3] SEAL  
6. 2R-6276 [2] CONNECTOR  
7. 3D-2824 [5] SEAL  
8. 9D-5902 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0180 H HOSE 56 cm(22.04 in.)  
  8S-3759 [2] COUPLING ASSEM.  
  3S-7166 [2] SLEEVE  
9. 9D-5992 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 55 cm(21.65 in.)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  [1] COUPLING ASSEM. (45 degrees)  
  4S-5414 [2] SLEEVE  
10. 030-8188 [2] CONNECTOR  
11. 9D-8557 C [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0180 H HOSE 55 cm(21.65 in.)  
  8S-3759 [1] COUPLING ASSEM. (straight)  
  3S-7166 [2] SLEEVE  
  9S-9726 [1] COUPLING ASSEM. (45 degrees)  
12. 9D-5904 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 92 cm(36.22 in.)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  8S-6392 [1] COUPLING ASSEM. (90 degrees)  
  4S-5414 [2] SLEEVE  
13. 7D-9984 [1] ELBOW  
14. 9D-6669 [1] BLOCK  
15. 9S-4185 [1] PLUG  
16. 9S-8008 [1] PLUG  
17. 0S-1585 [4] BOLT  
18. 1S-0994 [1] CLIP  
19. 8D-0087 [1] STEM  
20. 8D-6775 [1] TUBE ASSEM.  
21. 8D-8866 [1] TUBE ASSEM.  
22. 0S-1587 [4] BOLT  
23. 5P-5061 C [1] FLANGE  
  5H-8848 [1] SEAL  
24. 030-7935 [1] CONNECTOR  
  7M-8485 [1] SEAL  
25. 5P-1293 H HOSE 17.78 cm(7 in.)  
26. 005-4362 [1] ELBOW  
27. 5P-0597 [2] CLAMP  
28. 9D-5988 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  5P-0178 H HOSE 29 cm(11.41 in.)  
  8S-6417 [2] COUPLING ASSEM.  
  4S-5414 [2] SLEEVE  
29. 030-7944 [1] ELBOW  
30. 9D-0884 [1] CONNECTOR  
31. 030-7936 [1] CONNECTOR  
32. 2R-6806 [1] CONNECTOR  
33. 5P-5059 C [1] FLANGE  
  8F-6711 [1] SEAL  
34. 3K-0360 C [5] SEAL  
35. 030-7962 [1] ELBOW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
  H   ORDER BY THE DECIMETRE
 

#SEBP10920689
 

8D-7900: LINES GP-PUMP

8D7900 PUMP LINES GROUP--Part 1 of 3--Side View
Serial No. 72V2959-Up and 81V744-Up
c227980 SEBP1092
  For full view, you need register

Parts for your 140G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7K-4975 [2] HOSE 5 IN EACH  
2. 5P-2230 [4] CLAMP  
3. 8D-6774 [1] TUBE ASSEM.  
4. 030-7935 [1] CONNECTOR  
  7M-8485 [1] SEAL  
5. 0S-1594 C [4] BOLT  
6. 3B-4506 [6] LOCKWASHER  
7. 8D-6811 [1] PLATE  
8. 3B-1915 [3] BOLT  
  0L-1319 [3] WASHER  
  1P-7115 [3] GROMMET ASSEM.  
9. 005-4362 [1] ELBOW  
10. 3K-0360 [4] SEAL  
11. 2R-6276 [2] CONNECTOR  
12. 3D-2824 [6] SEAL  
13. 8M-0505 [1] CONNECTOR  
14. 030-7950 [1] ELBOW  
15. 8D-0407 [2] TUBE ASSEM.  
16. 030-7943 [2] ELBOW  
17. 9D-0884 [1] CONNECTOR  
18. 030-7936 [1] CONNECTOR  
19. 3J-1907 [2] SEAL  
20. 030-7944 C [2] ELBOW  
21. 2R-6806 [1] CONNECTOR  
22. 9D-5903 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  2P-5943 CH HOSE 27.95 in.(71 cm)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  8S-6392 [1] COUPLING ASSEM. (90degrees)  
  4S-5414 [2] SLEEVE  
23. 6K-3607 [1] CONNECTOR  
24. 9D-5992 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  2P-5943 CH HOSE 21.65 in. (55 cm)  
  8S-6417 [1] COUPLING ASSEM. (straight)  
  4S-5414 [2] SLEEVE  
  1P-9919 [1] COUPLING ASSEM. (45degrees)  
25. 4B-4278 [3] WASHER  
26. 9D-6227 C [1] HOSE ASSEM. (not serv)  
    For service furnish:
  2P-5943 CH HOSE 26.78 in. (68 cm)  
  8S-6417 [2] COUPLING ASSEM.  
  4S-5414 [2] SLEEVE  
27. 9D-6274 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  9S-0671 H HOSE 13.40 in. (34 cm)  
  8S-6391 [1] COUPLING ASSEM. (90degrees)  
  3S-8606 [2] SLEEVE  
  8S-4055 [1] COUPLING ASSEM. (straight)  
28. 8D-9918 [1] PLATE ASSEM.  
    (Includes)
29. 9F-2978 [2] NUT  
30. 9D-5911 [1] HOSE ASSEM. (not serv)  
    For service furnish:
  9S-0671 H HOSE 24.01 in. (61 cm)  
  8S-6391 [1] COUPLING ASSEM. (90degrees)  
  3S-8606 [2] SLEEVE  
  8S-4055 [1] COUPLING ASSEM. (straight)  
31. 2M-9780 [1] SEAL  
32. 061-9258 [1] TEE  
  030-3978 [1] CONNECTOR  
  3J-7354 [1] SEAL  
33. 6G-1694 C [1] HOSE ASSEM. (not serv)  
34. 6G-1693 C [1] HOSE ASSEM. (not serv)  
    For service of each furnish:
  9S-0247 H HOSE 30.3 in. (77 cm)  
  8S-3759 [2] COUPLING ASSEM. (straight)  
  3S-7166 [2] SLEEVE  
35. 9L-1566 C [1] SUPPORT  
  4S-4455 C [1] CLIP  
  1D-4717 C [1] NUT  
  5P-1075 C [1] WASHER  
36. 6G-3099 C [1] BUSHING  
  4B-4285 C [1] WASHER  
  3B-7329 C [1] NUT  
  2F-7964 C [1] SEAL  
  C   INDICATES CHANGE
  H   ORDER BY THE INCH
 

Information:

Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Service Magazine

Caterpillar Parts SIS Catalog 140G :

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