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3P841 CONTROL VALVE GROUP--Speed Selector, Differential and Selector and Pressure IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO. Serial No. 87V2324, 2326, 2327 to 2330, 2332, 2335 to 2337 and 87V2342 to 87V5039 inclusive and 82V750 to 82V870 inclusive Test No. 7813-Up. Transmission Serial No. 2FA1-Up. Part of 3P2807 Transmission Hydraulic Control Group shown on Page 123. 3P842, 3P843, 2P5814 and 8P1101 Valve parts shown on Pages 129, 130, 131 and 132A 120G


HYDRAULIC SYSTEM
VALVE GP-CONTROL
POWER TRAIN
VALVE GP
VALVE GP-PILOT
VALVE GP-SELECTOR & PRESS CONT
VALVE GP
VALVE GP-SELECTOR & PRESS CONT
TRANSMISSION 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-CONTROL
RELIEF CONTROL VALVE GROUP
3P-0840 RELIEF CONTROL VALVE GROUP
VALVE GP
3P-0841 VALVE GP
VALVE GP
3P-0841 VALVE GP
BASIC AIR CONTROL VALVE GROUP
8D-7306 BASIC AIR CONTROL VALVE GROUP
VALVE GP-CONTROL
8J-8595 VALVE GP-CONTROL
VALVE GP-CONTROL
8J-5989 VALVE GP-CONTROL
 

#SEBP10450400
 

3P-0841: VALVE GP

3P841 CONTROL VALVE GROUP--Speed Selector, Differential and Selector and Pressure
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO.
Serial No. 87V2324, 2326, 2327 to 2330, 2332, 2335 to 2337 and 87V2342 to 87V5039 inclusive and 82V750 to 82V870 inclusive
Test No. 7813-Up. Transmission Serial No. 2FA1-Up. Part of 3P2807 Transmission Hydraulic Control Group shown on
Page 123. 3P842, 3P843, 2P5814 and 8P1101 Valve parts shown on Pages 129, 130, 131 and 132A
c212147 SEBP1045
3P0841 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. 3P-0842 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 3P-0208 [8] BOLT  
3. 9M-1974 [16] WASHER  
4. 9M-4289 [4] BOLT  
5. 3P-0864 [1] COVER ASSEM.  
    (Includes)
6. 5M-6214 C [1] PLUG  
7. 3P-0866 [1] POPPET  
8. 3P-0867 [1] RETAINER  
  4D-1322 [1] RING  
9. 3J-6956 [1] SPRING  
10. 4S-5845 [4] BOLT  
12. 3P-2870 [1] MANIFOLD ASSEM.  
    (Includes)
14. 9M-6803 [2] DOWEL  
15. 8M-8489 [2] DOWEL  
16. 3P-0843 Y [1] VALVE GROUP  
    (Separate Illustration)
17. 8P-1101 YC [1] VALVE GROUP  
    (Separate Illustration)
18. 2P-5814 Y [1] VALVE GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450401
 

2P-5811: VALVE GP

2P5811 RELIEF CONTROL VALVE GROUP
Serial No. 87V1138 to 87V2414 inclusive and 82V668 to 82V754 inclusive
2P4548 Valve parts are shown on Page 129
c207409 SEBP1045
2P5811 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. 1P-0562 [1] VALVE ASSEM.  
    (Includes)
  4S-5982 [1] VALVE  
2. 9M-4313 [1] POPPET  
3. 8M-2537 [1] RETAINER  
4. 1L-3162 [1] RING  
5. 5M-9548 [1] SPRING  
6. 6F-6673 [3] SEAL  
7. 2S-1415 [1] SPRING  
8. 2S-1413 [1] SPRING  
9. 2P-5677 [1] SPRING  
10. 9S-4191 [4] PLUG  
  3J-1907 [4] SEAL  
11. 6P-4917 C [2] PIN  
12. 2P-4548 Y [2] VALVE ASSEM.  
    (Separate Illustration)
13. 3H-1461 [2] SEAL  
13. 3H-1461 [2] SEAL  
14. 1A-2029 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
15. 2S-2878 [5] COVER  
16. 7M-1396 [1] SPACER 1.57 mm(.062 in.) thick  
  7M-1397 [1] SPACER .914 mm(.036 in.) thick  
  5M-3492 [4] SPACER .254 mm(.01 in.) thick  
17. 3P-4566 [1] PLATE (identification)  
  7B-3028 [1] SCREW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450402
 

2P-5811: VALVE GP

2P5811 RELIEF CONTROL VALVE GROUP
Serial No. 87V2415-Up and 82V755-Up
2P4548 Valve parts are shown on Page 129
c218977 SEBP1045
2P5811 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. 1P-0562 [1] VALVE ASSEM.  
    (Includes)
  4S-5982 [1] VALVE  
2. 9M-4313 [1] POPPET  
3. 8M-2537 [1] RETAINER  
4. 1L-3162 [1] RING  
5. 5M-9548 [1] SPRING  
6. 6F-6673 [3] SEAL  
7. 8P-2893 C [1] SPRING  
8. 2S-1413 [1] SPRING  
9. 2P-5677 [1] SPRING  
10. 9S-4191 C [4] PLUG  
  3J-1907 C [4] SEAL  
11. 6P-4917 [2] PIN  
12. 2P-4548 Y [2] VALVE ASSEM.  
    (Separate Illustration)
13. 3H-1461 [2] SEAL  
13. 3H-1461 [2] SEAL  
14. 1A-2029 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
15. 2M-1656 C [5] COVER  
16. 7M-1396 [1] SPACER 1.57 mm(.062 in.) thick  
  7M-1397 [1] SPACER .914 mm(.036 in.) thick  
  5M-3492 [4] SPACER .254 mm(.01 in.) thick  
17. 3P-4566 [1] PLATE (identification)  
  7B-3028 [1] SCREW  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10450403
 

2P-4548: VALVE AS

2P4548 VALVE ASSEMBLY
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE
USE VEHICLE SERIAL NO. Serial No. 87V1138 to 87V5039 inclusive and 82V668 to
82V870 inclusive. Transmission Serial No. 2FA1-Up. Part of 3P840, 8P4301 and
2P5811 Relief Control Valve Groups shown on Pages 126, 126A and 128
c119689 SEBP1045
2P4548 VALVE AS Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-7686 [1] COLLAR-VALVE SEAT  
2. 9L-0672 [1] VALVE-CHECK  
3. 3P-7685 [1] SPRING  
4. 3P-8006 [1] RETAINER  
5. 1P-5274 [1] PIN-VALVE SPRING  
6. 3H-1156 [1] PIN  
 

#SEBP10450404
 

3P-0842: VALVE GP-PILOT

3P842 PILOT VALVE GROUP--Speed Selector
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE
USE VEHICLE SERIAL NO. Serial No. 87V1138 to 87V5039 inclusive and 82V668 to
82V870 inclusive. Transmission Serial No. 2FA1-Up. Part of 3P841 Control Valve
Group shown on Pages 126B and 127
c308873 SEBP1045
3P0842 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-7030 [1] SPOOL ASSEM.  
    (Includes)
2. 2A-3746 [1] PLUG  
3. 6H-2948 [1] PIN  
4. 2P-4503 [1] PLUG  
5. 7S-4607 [2] DETENT ASSEM.  
6. 8M-8489 [2] DOWEL  
7. 2H-6265 [1] PIN  
8. 3P-4362 [1] STOP  
  3K-0360 [1] SEAL  
 

#SEBP10450405
 

3P-0843: VALVE GP-SELECTOR & PRESS CONT

3P843 SELECTOR AND PRESSURE CONTROL VALVE GROUP
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO.
Serial No. 87V1138 to 87V5039 inclusive and 82V668 to 82V870 inclusive. Test No. 7813-Up. Transmission Serial No. 2FA1-Up
Part of 3P841 Control Valve Group shown on Pages 126B and 127
c207455 SEBP1045
3P0843 VALVE GP-SELECTOR & PRESS CONT Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2P-4500 [1] SPRING (outer)  
2. 2P-4397 [1] SPACER  
3. 2P-4499 [1] SPRING (inner)  
4. 7M-1396 [1] SPACER 1.58 mm(.062 in.) thick  
  7M-1397 [1] SPACER 0.92 mm(.036 in.) thick  
  5M-3492 [4] SPACER 0.26 mm(.010 in.) thick  
    (Use as Required)
5. 6P-4700 C [1] SPOOL ASSEM.  
    (Includes)
  5M-8009 [1] PIN  
6. 1S-2121 [1] PLUNGER  
7. 4M-2381 [1] SPRING  
8. 1S-1636 [1] RETAINER  
  1S-1638 [1] RING  
9. 5M-2504 [1] SLUG  
10. 2P-9186 [2] WASHER  
11. 3P-1798 [1] COVER  
12. 1L-3769 [1] RING  
13. 6F-6673 [1] SEAL  
14. 6L-4783 [3] BOLT  
15. 8H-5244 [1] DOWEL  
16. 5S-7906 [1] STOP  
17. 2P-4486 [2] SPOOL  
18. 2P-4501 [3] SPRING  
19. 2P-4502 [1] COVER  
20. 2P-4372 [1] SPOOL  
21. 3D-4245 [2] SEAL  
22. [5] BOLT  
23. 2P-4396 [1] PISTON  
  C   INDICATES CHANGE
 

#SEBP10450406
 

2P-5814: VALVE GP

2P5814 SELECTOR AND PRESSURE CONTROL VALVE GROUP
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO.
Serial No. 87V1138 to 87V5039 inclusive and 82V668 to 82V870 inclusive. Test No. 7813-Up. Transmission Serial No. 2FA1-Up
Part of 3P841 Control Valve Group shown on Page 126B and 127
c308874 SEBP1045
2P5814 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. 1P-9685 [1] SPOOL  
2. 5S-7906 [1] STOP  
3. 8H-5244 [1] DOWEL  
4. 2P-4529 [1] SPOOL-REDUCING  
5. 1T-0416 [4] BOLT  
6. 2P-5700 [1] SPRING (OUTER)  
7. 2P-5701 [1] SPRING (INNER)  
8. 2P-5803 [1] PLATE  
9. 2B-0858 C [1] PLUG-PIPE  
10. 3J-1907 C [1] SEAL  
11. 3P-2706 [1] PLATE  
12. 4B-9782 [1] BALL  
13. 9S-4191 C [1] PLUG-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP10450407
 

6P-3227: SELECTOR AND PRESSURE CONTROL VALVE GROUP

6P3227 SELECTOR AND PRESSURE CONTROL VALVE GROUP--Differential
Serial No. 87V1138 to 2323, 2325, 2331, 2333, 2334 and 87V2338 to 87V2341 inclusive and 82V668 to 82V749 inclusive. Part
of 3P841 Control Valve Group shown on Page 126B. Note: For parts service furnish 1--6P3226 Valve Group shown on Page 133
1--3P8125 Spring, 1--3S9950 Spring, 1--2P4547 Spring and 1--Form GMGO2257
c212162 SEBP1045
6P3227 SELECTOR AND PRESSURE CONTROL 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. 3P-8042 [1] SPRING  
2. 2P-4483 [1] SLEEVE  
3. 3P-0812 [1] SPRING (outer)  
  2P-4547 [1] SPRING (inner)  
4. 2P-4481 [1] PISTON  
5. 2M-1168 [1] SLUG  
6. 3S-9951 [1] WASHER  
7. 3P-6669 [1] SPRING  
8. 8H-5244 [2] DOWEL  
10. 3P-7834 [1] STOP ASSEM.  
    (Includes)
  2P-4484 [1] STOP  
11. 4B-9880 [1] BALL  
12. 2P-4506 [1] PLUG  
  2H-3932 [1] SEAL  
13. 2P-4507 [1] COVER  
14. 1T-0416 [7] BOLT  
15. 5M-6214 [3] PLUG  
16. 3S-9949 [1] SPRING  
17. 5S-7906 [1] STOP  
18. 2P-4486 [2] SPOOL  
19. 2P-4501 [2] SPRING  
20. 2P-4504 [1] COVER  
21. 3D-4245 [1] SEAL  
22. 1P-0561 [1] SPOOL  
23. 2P-4480 [1] SPOOL  
24. 6P-3225 [1] BODY SELECTOR  
    (Includes)
25. 6P-3223 [8] DAMPER 28.44mm(1.12in.)long  
26. 8M-8489 [4] DOWEL 15 mm(.59 in.) long  
 

#SEBP10450408
 

8P-1101: VALVE GP-SELECTOR & PRESS CONT

8P1101 SELECTOR AND PRESSURE REDUCING VALVE GROUP
IF TRANSMISSION IS SERIALIZED USE TRANSMISSION SERIAL NO. OTHERWISE USE VEHICLE SERIAL NO.
Serial No. 87V2324, 2326, 2327 to 2330, 2332, 2335 to 2337 and 87V2342 to 87V5039 inclusive and 82V750 to 82V870 inclusive
Test No. 7813-Up. Transmission Serial No. 2FA1-Up. Part of 3P841 Control Valve Group shown on Page 127
c228072 SEBP1045
8P1101 VALVE GP-SELECTOR & PRESS CONT Parts scheme
  For full view, you need register

Parts for your 120G MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3P-8042 [1] SPRING  
2. 8P-1097 [1] SLEEVE  
3. 3P-0812 [1] SPRING (outer)  
  2P-4547 [1] SPRING (inner)  
4. 8P-1096 [1] PISTON  
5. 2M-1168 [1] SLUG  
6. 3S-9951 [1] WASHER  
7. 3P-6669 [1] SPRING  
8. 8H-5244 [2] DOWEL  
9. 8P-1095 [1] SPOOL  
10. 3P-7834 [1] STOP ASSEM.  
    (Includes)
  2P-4484 [1] STOP  
11. 4B-9880 [1] BALL  
12. 2P-4506 [1] PLUG  
  2H-3932 [1] SEAL  
13. 2P-4507 [1] COVER  
14. 1T-0416 [7] BOLT  
15. 5M-6214 [3] PLUG  
16. 3S-9949 [1] SPRING  
17. 5S-7906 [1] STOP  
18. 2P-4486 [2] SPOOL  
19. 2P-4501 [2] SPRING  
20. 2P-4504 [1] COVER  
21. 3D-4245 [1] SEAL  
22. 1P-0561 [1] SPOOL  
23. 8P-1098 [1] BODY SELECTOR  
    (Includes)
24. 6P-3223 [8] DAMPER 28.44mm(1.12in.)long  
25. 8M-8489 [4] DOWEL 15 mm(.59 in.)long  
26. 3H-1118 C [1] PIN  
  C   INDICATES CHANGE
 

#SEBP10450409
 

2G-3580: TRANSMISSION COVERS GROUP

2G3580 TRANSMISSION COVERS GROUP--Type 1
Serial No. 87V2262 to 3972, 3977 to 87V3982 inclusive and 82V740 to 82V858 inclusive
Part of 2G2580 Sound Suppression Arrangement listed on Page 170D. AN ATTACHMENT
c211788 SEBP1045
2G3580 TRANSMISSION COVERS 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. 2G-2491 [1] PLATE ASSEM.  
    (Includes)
2. 9F-2978 [4] NUT  
3. [2] RETAINER  
4. 0S-0509 [24] BOLT  
5. 5P-1075 [30] WASHER  
6. 2G-2496 [1] BAFFLE ASSEM. (rear)  
    (Includes)
  9F-2978 [4] NUT  
7. 2G-2493 [1] PLATE ASSEM. (R. H.)  
8. 2G-2494 [1] PLATE ASSEM. (L. H.)  
    (Each Includes)
9. 9F-2978 [3] NUT  
10. 2G-2492 [1] BAFFLE ASSEM. (R. H.)  
11. 2G-2495 [1] BAFFLE ASSEM. (L. H.)  
12. 2G-1804 [2] LINER  
13. 2G-3323 [4] CHANNEL ASSEM.  
    (Each Includes)
14. 9F-2978 [2] NUT  
15. 1A-2029 [2] BOLT  
  1D-4717 [2] NUT  
  4B-4278 [2] WASHER  
16. 2G-2485 [2] PLATE  
17. 9D-6663 [2] VALVE  
18. 2G-1806 [2] HOSE ASSEM. 154 m(6.06 in.)  
19. 3B-7722 [2] BUSHING  
20. 3L-8852 [2] PLUG  
21. 0L-1351 [4] BOLT  
 

Information:

Caterpillar Parts SIS Catalog 120G :

VALVE GP
3P-0841 VALVE GP
VALVE GP-CONTROL
8P-4301 VALVE GP-CONTROL
RELIEF CONTROL VALVE GROUP
3P-0840 RELIEF CONTROL VALVE GROUP
CONTROL GP-TRANSMISSION
9D-5030 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
9D-5030 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
9D-5030 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
9D-5030 CONTROL GP-TRANSMISSION
CONTROL GP-TRANSMISSION
9D-5030 CONTROL GP-TRANSMISSION
VALVE GP
2P-5811 VALVE GP
VALVE GP
2P-5811 VALVE GP
VALVE AS
2P-4548 VALVE AS
VALVE GP-PILOT
3P-0842 VALVE GP-PILOT
VALVE GP-SELECTOR & PRESS CONT
3P-0843 VALVE GP-SELECTOR & PRESS CONT
VALVE GP
2P-5814 VALVE GP
SELECTOR AND PRESSURE CONTROL VALVE GROUP
6P-3227 SELECTOR AND PRESSURE CONTROL VALVE GROUP
VALVE GP-SELECTOR & PRESS CONT
8P-1101 VALVE GP-SELECTOR & PRESS CONT

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