2Y2175 VALVE GROUP Part of 1G643 Tank and Pump shown on Pages 153, 154, 155, 156 & 156A 120B MOTOR GRADER



HYDRAULIC SYSTEM
VALVE GP-RELIEF
TANK GP
SHAFT GP
CONTROL GP-POWER

MOTOR GRADER 120B MOTOR GRADER 64U
 120B MOTOR GRADER 64U02061-UP (MACHINE) POWERED BY 3306 ENGINE ZEBP0544 120B 64U   (1972)

HYDRAULIC SYSTEM

VALVE GP-RELIEF
VALVE GP-RELIEF
2Y-2175 VALVE GP-RELIEF
 

#ZEBP05440260
 

2Y-2175: VALVE GP-RELIEF

2Y2175 VALVE GROUP
Part of 1G643 Tank and Pump shown on Pages 153, 154, 155, 156 & 156A
c11142p ZEBP0544
2Y2175 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
1. [1] BODY  
2. 2Y-2174 [1] VALVE GROUP  
3. 2Y-2255 [1] CUP  
4. 3K-0360 [1] RING "O"  
5. 2Y-2251 [1] BODY  
 

#ZEBP05440261
 

1G-0642: STEERING GEAR TANK GROUP

1G642 STEERING GEAR TANK GROUP
Part of 1G643 Tank and Pump shown on Pages 153 & 154
Serial No. 64U2061 to 64U2843
sp145 ZEBP0544
1G0642 STEERING GEAR TANK GROUP Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  [4] BOLT  
  [4] LOCKWASHER  
  [4] WASHER  
  [1] COVER  
  [1] GASKET  
  [1] STRAINER ASSEM.  
  [1] RING  
  [1] CAP ASSEM.  
  [1] GASKET  
  [16] BOLT  
  [16] LOCKWASHER  
  [4] BOLT  
  [4] LOCKWASHER  
  [2] FLANGE  
  [1] SEAL  
  [2] FLANGE  
  [1] RING  
  [4] BOLT  
  [4] LOCKWASHER  
  [1] SEAL  
  [1] PLUG  
  [1] GASKET  
  [1] TANK ASSEM.  
 

#ZEBP05440262
 

1G-0642: STEERING GEAR TANK GROUP

1G642 STEERING GEAR TANK GROUP
Part of 1G643 Tank and Pump shown on Pages 155 & 156
Serial No. 64U2844 to 64U6428 inclusive
sp867 ZEBP0544
1G0642 STEERING GEAR TANK GROUP Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  [4] BOLT  
  [4] LOCKWASHER  
  [4] WASHER  
  [1] COVER  
  [1] GASKET  
  [1] STRAINER ASSEM.  
  [1] RING  
  [1] CAP ASSEM.  
  [1] GASKET  
  [16] BOLT  
  [16] LOCKWASHER  
  C [4] BOLT  
  C [4] LOCKWASHER  
  C [2] FLANGE  
  [1] SEAL  
  C [2] FLANGE  
  [1] RING  
  C [4] BOLT  
  C [4] LOCKWASHER  
  [1] SEAL  
  [1] PLUG  
  [1] GASKET  
  [1] TANK ASSEM.  
  C   INDICATES CHANGE
 

#ZEBP05440263
 

1G-0642: STEERING GEAR TANK GROUP

1G642 STEERING GEAR TANK GROUP
Part of 1G643 Tank and Pump shown on Page 156A
Serial No. 64U6429-Up
c179695 ZEBP0544
1G0642 STEERING GEAR TANK GROUP Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
1. 0S-1585 [4] BOLT  
2. 3B-4508 [4] LOCKWASHER  
3. 4B-5273 [4] WASHER  
4. 1G-0623 [1] TANK ASSEM.  
5. 1G-0629 [1] STRAINER ASSEM.  
6. 1G-0634 [1] RING  
7. 4D-0307 [1] CAP ASSEM.  
8. 4D-0306 [1] GASKET  
9. 1G-1354 [1] GASKET  
10. 1G-1353 [1] COVER  
11. 3B-1915 [16] BOLT  
12. 3B-4506 [16] LOCKWASHER  
13. 2D-8390 [1] PLUG  
14. 6F-4868 [1] GASKET  
15. 0S-1588 [8] BOLT  
16. 2K-0190 C [2] FLANGE  
17. 5H-4018 [1] COVER  
18. 5F-1678 [1] SEAL  
19. 2Y-1349 C [2] FLANGE  
20. 5H-4019 [1] COVER  
21. 4F-7391 [1] SEAL  
22. 5M-2894 C [8] WASHER  
  C   INDICATES CHANGE
 

#ZEBP05440264
 

4D-3160: POWER CONTROL DRIVE SHAFT GROUP

4D3160 POWER CONTROL DRIVE SHAFT GROUP
Serial No. 64U2061 to 64U4178
c69256 ZEBP0544
4D3160 POWER CONTROL DRIVE SHAFT GROUP Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  1H-8028 [1] YOKE ASSEM.  
    (PART OF SHAFT ASSEM. 4D3157)
  2D-3765 [2] SPIDER & BEARING ASSEM.  
    (PART OF SHAFT ASSEM. 4D3157)
  5B-0935 [1] FITTING  
    (PART OF YOKE ASSEM. 1H8028)
  1H-8036 [4] PLATE (LOCK)  
  4H-6955 [8] WASHER  
    (4 IN EACH SPIDER & BEARING ASSEM. 2D3765)
  1H-8034 [1] WASHER  
  1H-8033 [1] WASHER (CORK)  
  1H-8032 [1] RETAINER  
    (PARTS OF SHAFT ASSEM. 4D3157)
  4D-3157 [1] SHAFT ASSEM.  
  4D-3156 [1] TUBE ASSEM.  
    (PART OF SHAFT ASSEM. 4D3157)
  1H-8027 [4] RING  
    (2 IN EACH SPIDER & BEARING ASSEM. 2D3765)
  1H-8035 [8] BOLT  
 

#ZEBP05440265
 

2Y-4314: DRIVE SHAFT GP-POWER CONTROL

2Y4314 POWER CONTROL DRIVE SHAFT GROUP
Serial No. 64U4179-Up
sp1176 ZEBP0544
2Y4314 DRIVE SHAFT GP-POWER CONTROL Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
1. 2Y-4307 [4] BOLT ASSEM.  
2. 2Y-4275 [1] SHAFT ASSEM.  
3. 2Y-4277 [1] SPIDER AND BEARING ASSEM.  
4. 2Y-4121 [1] SEAL  
5. 2Y-4111 [1] YOKE ASSEM.  
6. 1G-0737 [1] RETAINER  
7. 2Y-4300 [1] TUBE ASSEM.  
8. 8K-5910 [1] FITTING  
 

#ZEBP05440266
 

1G-1305: CONTROL GP-POWER

1G1305 POWER CONTROL--Front View - Part 1 of 2
Serial No. 64U2061 to 64U4178
sp975 ZEBP0544
1G1305 CONTROL GP-POWER Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  4B-4281 C [1] WASHER  
  4D-3771 C [1] SET SCREW  
  3B-4510 C [1] LOCKWASHER  
  1A-2029 [16] BOLT  
  3B-4506 [16] LOCKWASHER  
  2B-7410 [2] PLUG  
  6B-9117 [1] GASKET  
  7B-8960 [1] COVER  
  1A-6308 [1] BOLT  
  1B-4437 [1] NUT  
  3B-4605 [1] COTTER PIN  
  0S-1012 [1] SPRING  
  2M-4287 [1] RING  
  7B-8934 [1] COUPLING  
  8B-3010 [1] COUPLING ASSEM.  
  2B-7410 [1] PLUG  
  8B-3009 [2] BUSHING  
    (Part of 8B3010 Assem.)
  3B-7259 [1] STREET ELL  
  4D-9757 [1] SHAFT  
  1F-3786 [1] BUSHING  
    (Part of 5D336 Assem.)
  8F-7421 [1] GEAR (19 teeth)  
  6B-9126 [1] WASHER  
  1B-4443 [1] NUT  
  3B-4621 [1] COTTER PIN  
  2B-7410 [1] PLUG  
  3B-4507 [8] LOCKWASHER  
  0T-0320 [8] BOLT  
  2A-1736 [6] HANDLE  
  5F-5434 [1] VENT ASSEM.  
  7B-2176 [1] BUSHING  
  C [6] LEVER  
  0L-0478 [6] BOLT  
  1B-4203 [6] NUT  
  3B-4506 [6] LOCKWASHER  
  5D-0336 [1] HOUSING ASSEM.  
  1F-2631 [1] BUSHING  
  5B-6129 [1] OIL SEAL  
    (Part of 5D336 Assem.)
  4F-4762 [5] SHAFT ASSEM.  
  4F-4763 [1] FORK  
  1C-1895 [1] PIN  
  7B-4137 [1] SHAFT  
  6B-9198 [10] CARTRIGDE ASSEM.  
  6B-9202 [1] SPRING  
  7B-4134 [1] SHELL  
  6B-9199 [1] RING  
  6B-9201 [1] SHELL  
  2F-7743 [55] SPRING  
  7F-7935 [10] PLATE  
  1G-1504 [5] CLUTCH  
  1G-1506 [10] GEAR ASSEM.  
  3D-4838 [13] PIN  
  6H-0632 [1] GASKET  
  6B-9116 [1] COVER  
  0S-1594 [2] BOLT (1" long)  
  1A-2029 [2] BOLT (1.125" long)  
  5D-0353 [2] BOLT  
  3B-4506 [6] LOCKWASHER  
  C   INDICATES CHANGE
 

#ZEBP05440267
 

1G-1305: CONTROL GP-POWER

1G1305 POWER CONTROL GROUP--Side View - Part 2 of 2
Serial No. 64U2061 to 64U4178
sp251 ZEBP0544
1G1305 CONTROL GP-POWER Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  3D-2405 [1] GARFO  
  7B-4135 [1] JUNTA  
  5D-2187 [6] RETENTOR  
  4D-3557 [1] COLAR  
  3D-2404 [1] GARFO  
  4B-7075 [12] ARRUELA  
  4F-0886 [6] BUCHA  
  3F-6998 [6] BUCHA  
  3B-0645 [6] BUJAO  
    (Comps. do 4D2060, Conj.)
  5D-0128 [4] EIXO  
  1G-1505 [2] ENGR.,CJ. (20 dentes)  
  2D-8663 [2] MANCAL  
    (Comp. do 1G1505, Conj.)
  4D-2060 [1] TAMPA, CONJ.  
  2Y-2662 [12] ARRUELA  
  1G-1483 [1] EMBREAGEM  
  2D-8671 [1] ANEL  
  6B-4462 [1] PINHAO (28dentes)  
  1B-4207 [1] PORCA  
  1A-4502 [1] TRAVA  
  1B-8714 [1] CHAVETA  
  5D-0319 [1] CAIXA, CONJ.  
  6H-3977 [2] RET. (.125" espess.)  
  1H-8037 [1] GARFO  
  2K-4821 [1] PORCA (Travante)  
  1B-8714 [1] CHAVETA  
  4D-1608 [1] RETENTOR  
  8B-2881 [1] ANEL INT. E ROL.  
    (Comp. do 5D319, Conj.)
  0T-0320 [6] PARAFUSO  
  3B-4507 [6] ARR. PRESSAO  
  5H-0284 [1] SEM-FIM  
  2Y-2155 [1] ALOJAM., CJ.  
  2A-3630 [2] CALVILHA  
  3D-8818 [6] BUJAO  
    (Comps. do 2Y2155, Conj.)
  2D-8657 [1] EIXO (Localiz. B)  
  3D-0365 [2] MOLA  
  2L-1699 [1] PINO (Mola)  
  1B-8714 [4] CHAVETA  
  5D-7337 [2] EIXO  
  9S-1354 [4] PORCA  
  3B-4510 [4] ARR. PRESSAO  
  0S-1566 [2] PARAFUSO  
  3B-4510 [2] ARR. PRESSAO  
  5B-0219 [2] JUNTA  
  3F-6889 [2] BUCHA  
    (Comp. do 2Y2155, Conj.)
  4D-1608 [4] RETENTOR  
  5B-0218 [2] JUNTA  
  3F-6998 [4] BUCHA  
    (Comp. do 2Y2155, Conj.)
  1G-1484 [1] EMBREAGEM  
  8B-2881 [1] ANEL INT. E ROL.  
    (Comp. do 5D327, Conj.)
  5D-0327 [1] SUPORTE, CONJ.  
  8B-2880 [2] CONE  
  5H-9839 [1] PINO  
  5D-1371 [1] ACOPLAMENTO  
  8B-3005 [4] CALCO (.010" esp.)  
  8B-3006 [2] CALCO (.005" esp.)  
  8B-3007 [1] BRACO  
  0T-0320 [2] PARAFUSO  
  1D-4718 [2] PORCA  
  3B-4507 [2] ARR. PRESSAO  
  4B-4278 [3] ARRUELA  
 

#ZEBP05440268
 

1G-1305: CONTROL GP-POWER

1G1305 POWER CONTROL--Front View - Part 1 of 2
Serial No. 64U4179 to 64U7592 inclusive
sp1223 ZEBP0544
1G1305 CONTROL GP-POWER Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  4B-4281 C [4] WASHER  
  4D-3771 C [1] SET SCREW  
  5F-0304 C [3] PLUG  
  3B-4510 C [1] LOCKWASHER  
  1A-2029 [16] BOLT  
  3B-4506 [16] LOCKWASHER  
  2B-0858 C [2] PLUG  
  6B-9117 [1] GASKET  
  7B-8960 [1] COVER  
  1A-6308 [1] BOLT  
  1B-4437 [1] NUT  
  3B-4605 [1] COTTER PIN  
  0S-1012 [1] SPRING  
  2M-4287 [1] RING  
  7B-8934 [1] COUPLING  
  8B-3010 [1] COUPLING ASSEM.  
  2B-0858 C [1] PLUG  
  8B-3009 [2] BUSHING  
    (Part of 8B3010 Assem.)
  3B-7259 [1] STREET ELL  
  4D-9757 [1] SHAFT  
  1F-3786 [1] BUSHING  
    (Part of 5D336 Assem.)
  8F-7421 [1] GEAR (19 teeth)  
  6B-9126 [1] WASHER  
  1B-4443 [1] NUT  
  3B-4621 [1] COTTER PIN  
  2B-0858 [1] PLUG  
  3B-4507 C [8] LOCKWASHER  
  0T-0320 C [8] BOLT  
  2A-1736 [6] HANDLE  
  5F-5434 [1] VENT ASSEM.  
  7B-2176 [1] BUSHING  
  [6] LEVER  
  0L-0478 [6] BOLT  
  1B-4203 [6] NUT  
  3B-4506 [6] LOCKWASHER  
  5D-0336 [1] HOUSING ASSEM.  
  1F-2631 [1] BUSHING  
  5B-6129 [1] SEAL  
    (Part of 5D336 Assem.)
  4F-4762 [5] SHAFT ASSEM.  
  4F-4763 [1] FORK  
  1C-1895 [1] PIN  
  7B-4137 [1] SHAFT  
  6B-9198 [10] CARTRIGDE ASSEM.  
  6B-9202 [1] SPRING  
  7B-4134 [1] SHELL  
  6B-9199 [1] RING  
  6B-9201 [1] SHELL  
  2F-7743 [55] SPRING  
  7F-7935 [10] PLATE  
  1G-1504 [5] CLUTCH  
  1G-1506 [10] GEAR ASSEM.  
  3D-4838 [13] PIN  
  6H-0632 [1] GASKET  
  6B-9116 [1] COVER  
  0S-1594 [2] BOLT (1" long)  
  1A-2029 [2] BOLT (1.125" long)  
  5D-0353 [2] BOLT  
  3B-4506 [6] LOCKWASHER  
  C   INDICATES CHANGE
 

#ZEBP05440269
 

1G-1305: CONTROL GP-POWER

1G1305 POWER CONTROL GROUP--Side View-Part 2 of 2
Serial No. 64U4179 to 64U7592 inclusive
sp1386 ZEBP0544
1G1305 CONTROL GP-POWER Parts scheme
  For full view, you need register

Parts for your 120B MOTOR GRADER:

Pos. Part No Qty Parts name Comments
  3D-2405 [1] FORK  
  7B-4135 [1] GASKET  
  5P-6780 [6] SEAL  
  4D-3557 [1] COLLAR  
  3D-2404 [1] FORK  
  4B-7075 [12] WASHER  
  4F-0886 [6] BUSHING  
  3F-6998 [6] BUSHING  
  3B-0645 [6] PLUG  
    (Part of 4D2060 Assem.)
  5D-0128 C [4] SHAFT  
  1G-1505 [2] GEAR ASS. (20teeth)  
  2D-8663 [2] BEARING  
    (Parts of 1G1505 Assem.)
  4D-2060 [1] COVER ASSEM.  
  2Y-2662 C [12] WASHER  
  1G-1483 [1] CLUTCH  
  2D-8671 [1] RING  
  6B-4462 [1] PINION (28 teeth)  
  1B-4207 [1] NUT  
  1A-4502 [1] LOCK  
  1B-8714 [1] KEY  
  5D-0319 [1] CAGE ASSEM.  
  6H-3977 [2] SEAL (.125" thick)  
  2Y-4276 [1] YOKE  
  2K-4821 [1] LOCKNUT  
  1B-8714 [1] KEY  
  4D-1608 [2] SEAL  
  8B-2881 [1] CUP  
    (Part of 5D319 Assem.)
  0T-0320 [6] BOLT  
  3B-4507 [6] WASHER  
  5H-0284 [1] WORM  
  2Y-2155 C [1] HOUSING ASSEM.  
  2A-3630 [2] DOWEL  
  3D-8818 [6] PLUG  
    (Parts of 2Y2155 Assem.)
  2D-8657 [1] SHAFT (location B)  
  3D-0365 [2] SPRING  
  2L-1699 [1] PIN (spring)  
  1B-8714 [4] KEY  
  5D-7337 [2] SHAFT  
  9S-1354 [4] NUT  
  3B-4510 [4] LOCKWASHER  
  0S-1566 [2] BOLT  
  3B-4510 [2] LOCKWASHER  
  5B-0219 [2] GASKET  
  7B-0272 [2] BOLT  
  3F-6889 [2] BUSHING  
    (Part of 2Y2155 Assem.)
  4D-1608 [4] SEAL  
  5B-0218 [2] GASKET  
  3F-6998 [4] BUSHING  
    (Part of 2Y2155 Assem.)
  1G-1484 [1] CLUTCH  
  8B-2881 [1] CUP  
    (Part of 5D327 Assem.)
  5D-0327 [1] BRACKET ASSEM.  
  8B-2880 [2] CONE  
  5H-9839 [1] PIN  
  5D-1371 [1] COUPLING  
  8B-3005 [4] SHIM (.010" thick)  
  8B-3006 [2] SHIM (.005" thick)  
  8B-3007 [1] BRACE  
  0T-0320 [2] BOLT  
  1D-4718 [2] NUT  
  3B-4507 [2] LOCKWASHER  
  4B-4278 [3] WASHER  
  C   INDICATES CHANGE
 

Information:

Tool Operating Manual
Repairing Line Relief Valve Seats in Hydraulic Control Valves Using the 229-3612 Hydraulic Valve Seat Repair Kit{0738, 5117}
Repairing Line Relief Valve Seats in Hydraulic Control Valves Using the 229-3612 Hydraulic Valve Seat Repair Kit{0738, 5117}

Caterpillar Parts SIS Catalog 120B :

PUMP GP-VANE
2Y-3734 PUMP GP-VANE
HYDRAULIC PUMP ASSEMBLY
2Y-2956 HYDRAULIC PUMP ASSEMBLY
HYDRAULIC PUMP ASSEMBLY
4D-4661 HYDRAULIC PUMP ASSEMBLY
TANK AND PUMP GROUP
1G-0643 TANK AND PUMP GROUP
TANK AND PUMP GROUP
1G-0643 TANK AND PUMP GROUP
TANK AND PUMP GROUP
1G-0643 TANK AND PUMP GROUP
TANK AND PUMP GROUP
1G-0643 TANK AND PUMP GROUP
TANK AND PUMP GROUP
1G-0643 TANK AND PUMP GROUP
STEERING GEAR TANK GROUP
1G-0642 STEERING GEAR TANK GROUP
STEERING GEAR TANK GROUP
1G-0642 STEERING GEAR TANK GROUP
STEERING GEAR TANK GROUP
1G-0642 STEERING GEAR TANK GROUP
POWER CONTROL DRIVE SHAFT GROUP
4D-3160 POWER CONTROL DRIVE SHAFT GROUP
DRIVE SHAFT GP-POWER CONTROL
2Y-4314 DRIVE SHAFT GP-POWER CONTROL
CONTROL GP-POWER
1G-1305 CONTROL GP-POWER
CONTROL GP-POWER
1G-1305 CONTROL GP-POWER
CONTROL GP-POWER
1G-1305 CONTROL GP-POWER

Truck sale:

CATERPILLAR 120B 1978
$17,572 USD 
CATERPILLAR 120B 1978
- MOTOR GRADERS
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