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3G5187 COMBINATION VALVE GROUP Serial No. 87V3203 to 87V3973 inclusive and 82V804 & 82V861 inclusive. Part of 9D1130 Pump Lines Group shown on Page 228D. 9J1762 and 3G5186 Valve parts are shown on Pages 230 and 230A 120G


HYDRAULIC SYSTEM
VALVE GP
VALVE GP-COMBINATION
VALVE GP
VALVE GP-RELIEF
PUMP GP

MOTOR GRADER 120G MOTOR GRADER 82V
 120G MOTOR GRADER 82V00668-UP (MACHINE) POWERED BY 3304 ENGINE SEBP1045 120G 82V   (1974)

HYDRAULIC SYSTEM

VALVE GP
VALVE GP-AIR CONTROL
2G-8020 VALVE GP-AIR CONTROL
BASIC AIR CONTROL VALVE GROUP
8D-7306 BASIC AIR CONTROL VALVE GROUP
VALVE GP
3G-5187 VALVE GP
VALVE GP
3G-5186 VALVE GP
VALVE GP
3G-3929 VALVE GP
VALVE GP
8J-6103 VALVE GP
 

#SEBP10450750
 

3G-5187: VALVE GP

3G5187 COMBINATION VALVE GROUP
Serial No. 87V3203 to 87V3973 inclusive and 82V804 & 82V861 inclusive. Part of
9D1130 Pump Lines Group shown on Page 228D. 9J1762 and 3G5186 Valve parts are
shown on Pages 230 and 230A
c177196 SEBP1045
3G5187 VALVE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4185 [2] PLUG (hex head)  
    - OR -
  9S-8005 C [2] PLUG (socket head)  
2. 3K-0360 [2] SEAL  
3. 9S-8008 [1] PLUG  
  3D-2824 [1] SEAL  
4. 4J-0519 [2] SEAL  
5. 5P-3628 [3] BOLT  
6. 3G-5186 [1] VALVE GROUP  
7. 9J-1762 Y [1] VALVE GROUP  
    (Separate Illustration)
8. 1P-1669 [1] PLUG  
9. 6J-3134 [2] SEAL  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450751
 

3G-8438: VALVE GP-COMBINATION

3G8438 COMBINATION VALVE GROUP
Serial No. 87V3974-Up and 82V862-Up
Part of 9D1130 Pump Lines Group shown on Page 228G
9J1762 and 3G8437 Valve parts are shown on Pages 230 and 230B
c180453 SEBP1045
3G8438 VALVE GP-COMBINATION Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4185 C [2] PLUG (hex head)  
    - OR -
  9S-8005 [2] PLUG (internal hex head)  
2. 3K-0360 [2] SEAL  
3. 9S-8008 [1] PLUG  
  3D-2824 [1] SEAL  
4. 4J-0519 [2] SEAL  
5. 5P-3628 [3] BOLT  
6. 3G-8437 Y [1] VALVE GROUP  
    (Separate Illustration)
7. 9J-1762 Y [1] VALVE GROUP  
    (Separate Illustration)
8. 1P-1669 [1] PLUG  
9. 6J-3134 [2] SEAL  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450752
 

3G-5186: VALVE GP

3G5186 COMBINATION VALVE GROUP
Serial No. 87V3203 to 87V3973 inclusive and 82V804 to 82V861 inclusive
Part of 3G5187 Combination Valve Group shown on Page 230
c168388 SEBP1045
3G5186 VALVE GP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
2. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
3. 9F-6705 [1] SPRING  
4. 030-8194 [1] CONNECTOR  
  2M-9780 [1] SEAL  
5. 8J-8753 [1] RETAINER  
6. 1H-0337 [1] VALVE  
7. 8J-6752 [1] VALVE GROUP  
8. 8J-6707 [1] RETAINER  
9. 9S-8008 [3] PLUG  
  3D-2824 [3] SEAL  
10. 3J-7473 [5] SHIM .127 mm(.005 in.) thick  
  3J-7470 [1] SHIM 1.22 mm(.048 in.) thick  
11. 2J-6089 [1] SPRING  
12. 8J-0331 [1] VALVE  
13. 4J-8996 [1] SEAL  
14. 8J-6708 [1] SPACER  
15. 8J-6714 [1] SPACER  
16. 4L-1468 [2] WASHER  
  8J-6709 [5] SHIM  
17. 8J-6703 [1] SPRING  
18. [1] PLUG  
  3J-7354 [1] SEAL  
19. 8J-6710 [1] STOP  
20. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
21. 9J-6458 [1] VALVE GROUP  
    (Includes)
22. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
23. 9S-8004 [1] PLUG  
  3J-1907 [1] SEAL  
 

#SEBP10450753
 

3G-8437: VALVE GP-RELIEF

3G8437 RELIEF VALVE GROUP
Serial No. 87V3974-Up and 82V862-Up
Part of 3G8438 Combination Valve Group shown on Page 230-1
c304150 SEBP1045
3G8437 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-9334 [1] PLUG  
  7M-8485 [1] SEAL  
2. 1H-0337 [1] VALVE  
3. 9F-6705 [1] SPRING  
4. 8J-8753 [1] RETAINER  
5. 6K-3607 [1] CONNECTOR  
  2M-9780 [1] SEAL  
6. 9S-4182 [1] PLUG  
  3J-7354 [1] SEAL  
7. 4L-1468 [2] WASHER .06 in.(1.52 mm)thick  
  8J-6709 [5] SHIM .01 in.(.254 mm)thick  
8. 8J-6710 [1] STOP  
9. 8J-6704 [1] SPRING (inner)  
10. 8J-6703 [1] SPRING (outer)  
11. 9S-8008 [3] PLUG  
  3D-2824 [3] SEAL  
12. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
13. 9J-6458 [1] VALVE GROUP  
14. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
15. 9S-8004 C [1] PLUG  
  3J-1907 C [1] SEAL  
16. 3J-7473 [5] SHIM .005 in.(.127 mm) thick  
  3J-7470 [1] SHIM .048 in.(1.22 mm) thick  
17. 2J-6089 [1] SPRING  
18. 8J-6752 [1] VALVE GROUP  
19. 8J-0331 [1] VALVE  
20. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
21. 4J-8996 [1] SEAL  
22. 8J-6708 [1] SPACER  
23. [1] SPACER  
24. 8J-6707 [1] RETAINER  
  C   INDICATES CHANGE
 

#SEBP10450754
 

9J-5147: RELIEF VALVE GROUP

9J5147 RELIEF VALVE GROUP
Part of 9J792 Combination Valve Group shown on Page 229
c154864 SEBP1045
9J5147 RELIEF VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-9334 [1] PLUG  
  7M-8485 [1] SEAL  
2. 9S-8005 [3] PLUG  
  3K-0360 [3] SEAL  
3. 9F-6705 [1] SPRING  
4. 030-8194 [1] CONNECTOR  
  2M-9780 [1] SEAL  
5. 8J-8753 [1] RETAINER  
6. 1H-0337 [1] VALVE  
7. 8J-6752 [1] VALVE GROUP  
8. 8J-6707 [1] RETAINER  
9. 9S-8008 [1] PLUG  
  3D-2824 [1] SEAL  
10. 3J-7473 [5] SHIM .005 in. (.127 mm) thick  
  3J-7470 [1] SHIM .048 in. (1.22 mm) thick  
11. 2J-6089 [1] SPRING  
12. 8J-0331 [1] VALVE  
13. 4J-8996 [1] SEAL  
14. 8J-6708 [1] SPACER  
15. 8J-6714 [1] SPACER  
 

#SEBP10450755
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 1--Type 1
Part of 8J6731 Slipper and Gear Piston Pump Group shown on Page 235
8J6729 Control Head parts are shown on Page 236
c207262 SEBP1045
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6729 Y [1] HEAD GROUP  
    (Separate Illustration)
2. 2H-1190 [3] DOWEL  
3. 9F-2083 [2] DOWEL  
4. 008-3214 [2] RING  
5. 2P-9703 [1] PLATE (warning)  
  4B-4158 [4] SCREW  
6. 031-0216 C [4] BOLT  
7. 8J-6327 [2] RETAINER  
  8J-6283 [6] SHIM .002 in. (.06 mm) thick  
  8J-6284 [6] SHIM .005 in. (.13 mm) thick  
8. 1B-3953 [3] CONE  
9. 8J-6322 [3] CUP  
10. 2J-8169 [1] SEAL  
11. 8J-6296 [1] SHAFT  
  8J-6315 [1] CONE  
12. 9J-0728 [1] BODY  
13. 9J-7138 C [1] SWASHPLATE  
14. 9J-7858 C [1] PLATE  
15. 8J-6298 [1] SPRING  
16. 8J-6300 [2] SPACER  
17. 3H-1258 [1] RING  
18. 0S-1608 [2] BOLT  
19. 3B-4506 [10] LOCKWASHER  
20. 0S-1619 [4] BOLT  
21. 1A-5183 [4] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450756
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 2--Type 1
Part of 8J6731 Slipper and Gear Piston Pump Group shown on Page 235
c161651 SEBP1045
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6347 [1] GASKET  
2. 8J-6321 C [2] STOP  
3. 9S-8005 [2] PLUG  
  3K-0360 [2] SEAL  
4. 6F-4855 [2] SEAL  
5. 8J-1899 [3] SHIM .044 in. (1.12mm)thick  
  8J-1898 [6] WASHER .010 in. (.26 mm)thick  
6. 8J-4377 [1] BOLT  
7. 8J-1810 [1] BOLT  
8. 1H-5728 [2] SEAL  
9. 0L-1351 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
10. 8J-6346 C [1] PLATE  
11. 8J-6229 [2] COVER  
12. 8J-6302 [6] SHIM .005 in. (.13 mm) thick  
  8J-6301 [3] SHIM .002 in. (.06 mm) thick  
13. 8J-6348 [1] BARREL ASSEM.  
14. 8J-2022 R [9] PISTON ASSEM.  
15. 9J-5758 RC [1] PLATE  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP10450757
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 1--Type 2
Part of 8J6731 Slipper and Gear Piston Group shown on Page 235
8J6729 Control Head parts are shown on Page 236
c157500 SEBP1045
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6729 Y [1] HEAD GROUP  
    (Separate Illustration)
2. 2H-1190 [3] DOWEL  
3. 9F-2083 [2] DOWEL  
4. 008-3214 [2] RING  
5. 2P-9703 [1] PLATE (warning)  
  4B-4158 [4] SCREW  
6. 031-0216 [4] BOLT  
  5P-0537 C [4] WASHER  
7. 8J-6327 [2] RETAINER  
  8J-6283 [6] SHIM .002 in. (.06 mm) thick  
  8J-6284 [6] SHIM .005 in. (.13 mm) thick  
8. 1B-3953 [3] CONE  
9. 8J-6322 [3] CUP  
10. 1A-5183 [4] BOLT  
11. 8J-6296 [1] SHAFT  
  8J-6315 [1] CONE  
12. 9J-0728 [1] BODY  
13. 9J-7138 [1] SWASHPLATE  
14. 9J-7858 [1] PLATE  
15. 8J-6298 [1] SPRING  
16. 8J-6300 C [3] SPACER  
17. 1B-8737 C [1] KEY  
18. 0S-1608 [2] BOLT  
19. 3B-4506 [10] LOCKWASHER  
20. 0S-1619 [4] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450758
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 2--Type 2
Part of 8J6731 Slipper and Gear Piston Pump Group shown on Page 235
c161652 SEBP1045
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6347 H [1] GASKET  
2. 8J-6321 [2] STOP  
3. 9S-8005 [2] PLUG  
  3K-0360 H [2] SEAL  
4. 6F-4855 H [2] SEAL  
5. 8J-1899 C [2] WASHER .044 in. (1.12 mm) thick  
  8J-1898 C [3] SHIM .010 in. (.26 mm) thick  
6. 8J-4377 [1] BOLT  
7. 9J-7758 C [1] BOLT  
8. 1H-5728 H [2] SEAL  
9. 0L-1351 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
10. 9J-7857 [1] PLATE  
11. 8J-6229 [2] COVER  
12. 8J-6302 [6] SHIM .005 in. (.13 mm) thick  
  8J-6301 [3] SHIM .002 in. (.06 mm) thick  
13. 9J-8660 RC [1] BARREL ASSEM.  
14. 8J-2022 R [9] PISTON ASSEM.  
15. 9J-5758 RC [1] PLATE  
16. 1D-5120 C [1] NUT  
17. 9J-7814 CH [1] SEAL  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3G-1708 [1] KIT (seal)  
    (Includes parts marked H)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP10450759
 

8J-6730: PUMP GP-SLIPPER

8J6730 SLIPPER PUMP GROUP--Part 1--Type 3
Part of 8J6731 Slipper and Gear Piston Group shown on Page 235
8J6729 Control Head parts are shown on Page 236
c171438 SEBP1045
8J6730 PUMP GP-SLIPPER Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8J-6729 Y [1] HEAD GROUP  
    (Separate Illustration)
2. 2H-1190 [3] DOWEL  
3. 9F-2083 [2] DOWEL  
4. 008-3214 [2] RING  
5. 2P-9703 [1] PLATE (warning)  
  4B-4158 [4] SCREW  
6. 031-0216 [4] BOLT  
  5P-0537 [4] WASHER  
7. 3G-3156 C [2] BEARING  
  8J-6283 [6] SHIM .002 in. (.06 mm) thick  
  8J-6284 [6] SHIM .005 in. (.13 mm) thick  
8. 1B-3953 [3] CONE  
9. 8J-6322 [3] CUP  
10. 1A-5183 C [2] BOLT  
11. 8J-6296 [1] SHAFT  
  8J-6315 [1] CONE  
12. 9J-0728 [1] BODY  
13. 9J-7138 [1] SWASHPLATE  
14. 9J-7858 [1] PLATE  
15. 8J-6298 [1] SPRING  
16. 8J-6300 [3] SPACER  
17. 1B-8737 [1] KEY  
18. 0S-1608 [2] BOLT  
19. 3B-4506 [10] LOCKWASHER  
20. 0S-1619 [4] BOLT  
21. 7F-3425 C [2] BOLT  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

Information:

Caterpillar Parts SIS Catalog 120G :

VALVE GP-UNLOADING
9J-1762 VALVE GP-UNLOADING
COMBINATION VALVE GROUP
9J-0792 COMBINATION VALVE GROUP
VALVE GP-DIRECT RELIEF
8J-2011 VALVE GP-DIRECT RELIEF
LINES GP-PUMP
9D-1130 LINES GP-PUMP
LINES GP-PUMP
9D-1130 LINES GP-PUMP
LINES GP-PUMP
9D-1130 LINES GP-PUMP
LINES GP-PUMP
9D-1130 LINES GP-PUMP
LINES GP-PUMP
9D-1130 LINES GP-PUMP
VALVE GP-COMBINATION
3G-8438 VALVE GP-COMBINATION
VALVE GP
3G-5186 VALVE GP
VALVE GP-RELIEF
3G-8437 VALVE GP-RELIEF
RELIEF VALVE GROUP
9J-5147 RELIEF VALVE GROUP
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER
PUMP GP-SLIPPER
8J-6730 PUMP GP-SLIPPER

Truck sale:

Caterpillar 120G
 
Caterpillar 120G
- motor graders
HOLT CAT
 
40,000 
Caterpillar 120G, motor graders, Construction
- motor graders
ALTORFER INC.
Caterpillar H120GCS.CW40S, hammer, Construction
18,210 
Caterpillar H120GCS.CW40S, hammer, Construction
- hammer
BERGERAT MONNOYEUR S.A.S.
Caterpillar 120G, motor graders, Construction
32,000 
Caterpillar 120G, motor graders, Construction
- motor graders
FOLEY EQUIPMENT COMPANY
 
33,500 
Caterpillar HH120GCS, hammer, Construction


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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.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.