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6D2651 STEERING GEAR ASSEMBLY--Top View--Part 1 of 2 Part of 6D5695 Hydraulic Steering Conversion Group shown on Page 352D 4D7850 Valve parts are shown on Page 353 12E


OPERATOR STATION
CONTROL GP-STEERING
HYDRAULIC SYSTEM
VALVE GP-CONTROL
TANK GP

MOTOR GRADER 12E MOTOR GRADER 99E
 NO. 12 MOTOR GRADER 99E00001-04490 (MACHINE) UE034740 12E 99E   (1959)

OPERATOR STATION

CONTROL GP-STEERING
STEERING GEAR ASSEMBLY
2D-6198 STEERING GEAR ASSEMBLY
2D-6198 STEERING GEAR ASSEMBLY
STEERING GEAR ASSEMBLY
6D-2651 STEERING GEAR ASSEMBLY
6D-2651 STEERING GEAR ASSEMBLY
HYDRAULIC STEERING CONVERSION GROUP
6D-5695 HYDRAULIC STEERING CONVERSION GROUP
2D-4495 HYDRAULIC STEERING BOOSTER ARRANGEMENT
 

#UE0347400520
 

6D-2651: STEERING GEAR ASSEMBLY

6D2651 STEERING GEAR ASSEMBLY--Top View--Part 1 of 2
Part of 6D5695 Hydraulic Steering Conversion Group shown on Page 352D
4D7850 Valve parts are shown on Page 353
c130835 UE034740
6D2651 STEERING GEAR ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-8994 [2] GASKET  
2. 4B-4043 [4] BOLT  
  1A-2812 [4] WASHER  
3. 7D-8996 [2] GASKET  
4. 7D-8998 [1] COVER  
5. 0S-1585 [8] BOLT  
  1K-4703 [8] WASHER  
6. 2B-7410 [4] PLUG  
7. 1D-4541 [4] BOLT  
  4K-9890 [4] WASHER  
8. 4D-7850 Y [1] VALVE ASSEM.  
    (See Separate Illustration)
9. 7D-9003 [1] CAM AND SHAFT ASSEM.  
10. 2H-3776 [1] NUT  
11. 4D-7860 [1] LOCK  
12. 3K-8900 [1] BOLT  
  3K-8899 [1] WASHER  
13. 2B-7457 [2] PLUG  
14. 4D-7865 [2] WASHER  
15. 4D-7859 [2] SPRING  
16. 4D-7852 [1] HOUSING  
17. 3K-6706 [2] GASKET  
18. 7D-9005 [1] ADAPTER  
19. 3K-6712 [5] WASHER  
20. 8H-9585 [2] BEARING  
21. 3K-8895 [1] ACTUATOR  
22. 4D-7856 [1] GASKET  
23. 0T-0573 [4] BOLT  
  5F-0548 [4] WASHER  
24. 3K-6710 [1] WASHER  
25. 6D-4202 [1] COVER ASSEM.  
26. 4D-7869 [1] SEAL  
    (Part of 6D4202 Assem.)
  Y   SEPARATE ILLUSTRATION
 

#UE0347400521
 

6D-2651: STEERING GEAR ASSEMBLY

6D2651 GEAR ASSEMBLY--Side View--Part 2 of 2
Part of 6D5695 Hydraulic Steering Conversion Group shown on Page 352D
c130836 UE034740
6D2651 STEERING GEAR ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-8995 [1] PISTON  
2. 7D-8997 [2] RING  
3. 7D-9001 [1] ROD  
4. 7D-9014 [1] SEAL  
5. 7D-8993 [1] ADAPTER  
6. 8F-3469 [4] SEAL  
7. 7D-8999 [1] PIN  
8. 6F-6673 [1] SEAL  
9. 7J-6288 [1] RING  
10. 9B-7237 [3] SCREW  
11. 5F-0548 [6] WASHER  
12. 7D-8960 [1] HOUSING ASSEM.  
13. 7D-9007 [1] SEAL  
14. 7D-8992 [1] GASKET  
    (Parts of 7D8960 Assem.)
15. 0T-0840 [4] BOLT  
  7F-6998 [4] LOCKWASHER  
16. 7D-9002 [2] RETAINER  
17. 7D-9006 [1] BLOCK  
18. 7D-8950 [1] SHAFT ASSEM.  
19. 7D-9011 [1] BEARING ASSEM.  
    (Part of 7D8950 Assem.)
20. 9S-1354 [1] NUT  
  7D-9012 [1] WASHER  
    (Parts of 7D9011 Assem.)
21. 7D-9004 [1] GASKET  
22. 4L-9337 [3] BOLT  
23. 7D-9013 [2] WASHER  
24. 7D-9008 [1] SHIM (.010" Thick)  
  7D-9009 [1] SHIM (.030" Thick)  
  7D-9010 [1] SHIM (.005" Thick)  
25. 6D-3973 [1] PLUG  
26. 3D-4524 [1] NUT  
 

#UE0347400522
 

6D-5695: HYDRAULIC STEERING CONVERSION GROUP

6D5695 HYDRAULIC STEERING CONVERSION GROUP--Field Installation
6D2651 Steering Gear parts are shown on Pages 352B & 352C
c130834 UE034740
6D5695 HYDRAULIC STEERING CONVERSION GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-2651 Y [1] GEAR ASSEM.  
    (See Separate Illustration)
2. 6D-2559 [1] SUPPORT ASSEM.  
3. 1D-4585 [3] BOLT  
  1D-4720 [3] NUT  
4. 3B-4510 [7] LOCKWASHER  
5. 0S-1589 [4] BOLT  
6. 6D-2563 [1] COUPLING  
7. 6D-2552 [1] SHAFT  
8. 2K-9094 [1] WASHER  
9. 1H-5278 [4] FLANGE  
10. 4B-3388 [16] BOLT  
  3B-4505 [16] LOCKWASHER  
  5F-7054 [4] SEAL  
11. 6D-2557 [1] TUBE ASSEM.  
12. 6D-2558 [1] TUBE ASSEM.  
13. 7F-6696 [2] FITTING  
14. 3H-1833 [4] NUT  
  3H-1834 [4] SLEEVE  
    (2 each in 7F6696 Fitting)
15. 2D-2976 [1] YOKE  
16. 2D-2978 [1] SPIDER AND BEARING ASSEM.  
  4D-0523 [4] RING  
    (Part of 2D2978 Spider and Bearing Assem.)
17. 3D-0411 [1] YOKE  
18. 6D-2553 [1] SHAFT  
19. 6D-2653 [1] TUBE ASSEM.  
20. 3D-2803 [2] FITTING  
21. 3D-2806 [2] NUT  
  3D-2807 [2] SLEEVE  
  3K-0360 [2] SEAL  
    (1 each in 3D2803 Fitting)
22. 6D-2654 [1] TUBE ASSEM.  
23. 6D-5715 [1] JOINT ASSEM.  
24. 0S-1571 [1] BOLT  
  1D-4717 [1] NUT  
  3B-4506 [1] LOCKWASHER  
25. 6D-5687 [2] LUG  
    (Use when Bolsters have only 2 mounting holes)
  Y   SEPARATE ILLUSTRATION
 

#UE0347400523
 

4D-7850: CONTROL VALVE ASSEMBLY

4D7850 CONTROL VALVE ASSEMBLY
Part of 6D2651 Steering Gear Assembly shown on Page 352B
c102688 UE034740
4D7850 CONTROL VALVE ASSEMBLY Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5F-1678 [1] SEAL  
  1S-4347 [1] COVER  
  4D-7844 [1] GASKET  
  4D-7871 [1] WASHER  
  6D-3967 [1] BOLT  
  6H-8351 [1] LOCKWASHER  
  8H-3128 [2] SCREW  
  1H-3244 [2] LOCKWASHER  
  4D-7848 [1] PIN  
  4D-7842 [1] LEVER  
  [1] SPOOL ASSEM.  
  4F-7391 H [1] SEAL  
  H [1] COVER  
  3K-8890 H [1] SEAL  
  3K-8889 H [1] RETAINER  
  5F-1678 [1] SEAL  
  8H-3128 [2] SCREW  
  1H-3244 [2] LOCKWASHER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3K-8908 [1] KIT  
    (COVER AND SEAL - CONSISTS OF PARTS MARKED H)
  [1] BODY AND SLEEVE ASSEM.  
 

#UE0347400524
 

5H-6990: TANK AND VALVE GROUP

5H6990 TANK AND VALVE GROUP--Front View--Part 1 of 2
Part of 2D4460 Hydraulic Control Arrangement listed on Page 332. 2D2278 Valve Group parts are shown on Page 382
Only separate parts serviced. When complete Group is required order 4D1685 shown on Pages 356 and 357
c61106 UE034740
5H6990 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-1521 [2] PIN  
  [1] COTTER PIN  
  5H-2180 [1] LEVER  
  5B-2208 [1] BOLT  
  5H-2207 [2] LINK  
  5H-2180 [1] LEVER  
  5B-2208 [1] BOLT  
  5H-2184 [1] SEAL  
  3H-5076 [2] BEARING  
  5H-2211 [1] SHAFT  
  1B-8704 [2] KEY  
  2H-4146 [1] RING  
  3H-5368 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
  3H-3667 [2] FLANGE  
  4F-7952 [1] SEAL  
  1H-0619 [8] COVER  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  2D-2278 Y [1] VALVE GRP.  
    (SEE SEPARATE ILLUS. FOR PARTS)
  1H-9588 [1] CAP  
  1H-9589 [1] GASKET  
  8F-9206 [4] SEAL  
  4F-7391 [1] SEAL  
  0S-1591 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  2K-0190 [2] FLANGE  
  0S-1588 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5F-7054 [8] SEAL  
  6F-5559 [12] SEAL  
  5F-1678 [1] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UE0347400525
 

5H-6990: TANK AND VALVE GROUP

5H6990 TANK AND VALVE GROUP--Side View--Part 2 of 2
Part of 2D4460 Hydraulic Control Arrangement listed on Page 332
Only separate parts serviced. When complete Group is required order 4D1685 shown on Pages 356 and 357
c43694 UE034740
5H6990 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5H-2181 [1] SPACER  
  3B-0623 [3] PLUG  
  5H-0254 [1] TANK ASSEM.  
  0S-1595 [2] CAP SCREW  
  3B-4508 [2] LOCKWASHER  
  1H-0566 [2] GASKET  
  0S-1585 [4] CAP SCREW  
  3B-4508 [4] LOCKWASHER  
  4B-5273 [4] WASHER  
  5H-0255 [4] BOSS  
    (PART OF ASSEM. 5H254)
  0S-1594 [48] CAP SCREW  
  3B-4506 [48] LOCKWASHER  
  0S-1594 [2] CAP SCREW  
  3B-4506 [2] LOCKWASHER  
  1F-8488 [1] BREATHER  
  5H-2329 [1] COVER ASSEM.  
  5H-0263 [1] BLOCK  
    (PART OF ASSEM. 5H2329)
  1H-0814 [1] STRAINER ASSEM.  
  3B-4621 [1] COTTER PIN  
  1H-3305 [2] FLANGE  
  5H-3337 [12] BOLT  
  1B-4203 [12] NUT  
  3B-4506 [12] LOCKWASHER  
  5F-1678 [1] SEAL  
  4H-3793 [1] PLUG  
 

#UE0347400526
 

4D-1685: TANK AND VALVE GROUP

4D1685 TANK AND VALVE GROUP--Front View--Part 1 of 2
Part of 2D4460 Hydraulic Control Arrangement listed on Page 332
4D1760 Valve Group parts are shown on Page 382
c66088 UE034740
4D1685 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3H-1521 [2] PIN  
  [1] COTTER PIN  
  5H-2180 [1] LEVER  
  5B-2208 [1] BOLT  
  1H-3101 [2] LINK  
  5H-2180 [1] LEVER  
  5B-2208 [1] BOLT  
  5H-2184 [1] SEAL  
  3H-5076 [2] BEARING  
  5H-2211 [1] SHAFT  
  1B-8704 [2] KEY  
  2H-4146 [1] RING  
  3H-5368 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
  3H-3667 [2] FLANGE  
  4F-7952 [1] SEAL  
  1H-0619 [8] COVER  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  4D-1760 Y [1] VALVE GROUP  
    (SEE SEPARATE ILLUS. FOR PARTS)
  1H-9588 [1] CAP  
  1H-9589 [1] GASKET  
  8F-9206 [4] SEAL  
  4F-7391 [1] SEAL  
  0S-1591 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  2K-0190 [2] FLANGE  
  0S-1588 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5F-7054 [8] SEAL  
  6F-5559 [12] SEAL  
  5F-1678 [1] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#UE0347400527
 

4D-1685: TANK AND VALVE GROUP

4D1685 TANK AND VALVE GROUP--Side View - Part 2 of 2
Part of 2D4460 Hydraulic Control Arrangement listed on Page 332
c66089 UE034740
4D1685 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5H-2181 [1] SPACER  
  3B-0623 [3] PLUG (CORE)  
  5H-0254 [1] TANK ASSEM.  
  0S-1595 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  1H-0566 [2] GASKET  
  0S-1585 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  4B-5273 [4] WASHER  
  5H-0255 [4] BOSS  
    (PART OF TANK ASSEM. 5H254)
  0S-1594 [48] BOLT  
  3B-4506 [48] LOCKWASHER  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  1F-8488 [1] BREATHER  
  5H-2329 [1] COVER ASSEM.  
  5H-0263 [1] BLOCK  
    (PART OF COVER ASSEM. 5H2329)
  1H-0814 [1] STRAINER ASSEM.  
  3B-4621 [1] COTTER PIN  
  1H-3305 [2] FLANGE  
  5H-3337 [12] BOLT  
  1B-4203 [12] NUT  
  3B-4506 [12] LOCKWASHER  
  5F-1678 [1] SEAL  
  4H-3793 [1] PLUG  
 

#UE0347400528
 

2D-0485: TANK AND VALVE GROUP

2D485 TANK AND VALVE GROUP--Front View - Part 1 of 2
Part of 2D4490 and 4D285 Hydraulic Control Arrangements listed on Pages 333 and 335
2D2284 Valve Group parts are shown on Page 383
Only separate parts serviced. When complete Group is required order 4D1745 shown on Pages 360 and 361
c54491 UE034740
2D0485 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1582 [1] BOLT  
  2D-0375 [1] LEVER  
  5H-2184 [4] SEAL  
  3H-5076 [8] BEARING  
  2D-0412 [1] SHAFT  
  5H-2211 [1] SHAFT  
  1H-3101 [2] LINK  
  3H-1679 [1] ROLLER  
  5H-2180 [4] LEVER  
  5B-2208 [4] BOLT  
  3B-4285 [1] WASHER  
  2H-4146 [4] RING  
  5H-2207 [4] LINK  
  3H-1521 [8] PIN  
  3B-4615 [8] COTTER PIN  
  1A-2029 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
  1H-0619 [8] COVER  
  5F-7054 [8] SEAL  
  1A-2029 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5H-2329 [1] COVER ASSEM.  
  5H-2181 [1] SPACER  
  4H-3793 [1] PLUG  
  0S-1582 [1] BOLT  
  2D-0237 [1] LEVER  
  5H-2180 [2] LEVER  
  5B-2208 [2] BOLT  
  2D-0234 [1] SHAFT  
  2D-0236 [2] LINK  
  2D-0235 [1] SHAFT  
  2D-2284 Y [1] VALVE GRP.  
    (SEE SEPARATE ILLUS. FOR PARTS)
  8F-9208 [4] SEAL  
  1H-3305 [2] FLANGE  
  4F-7391 [1] SEAL  
  0S-1591 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5H-0263 [1] BLOCK  
    (PART OF ASSEM. 5H2329)
  2K-0190 [2] FLANGE  
  5F-1678 [1] SEAL  
  0S-1588 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5F-1678 [1] SEAL  
  0S-1594 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UE0347400529
 

2D-0485: TANK AND VALVE GROUP

2D485 TANK AND VALVE GROUP--Side View - Part 2 of 2
Part of 2D4490 and 4D285 Hydraulic Control Arrangements listed on Pages 333 and 335
Only separate parts serviced. When complete Group is required order 4D1745 shown on Pages 360 and 361
c45000 UE034740
2D0485 TANK AND VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 12E MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1B-8704 [9] KEY  
  5H-0254 [1] TANK ASSEM.  
  4H-3865 [1] PIN  
  3B-4615 [1] COTTER PIN  
  2D-0414 [1] CRANK  
  0S-1615 [1] BOLT  
  1B-4427 [1] NUT  
  3H-5808 [1] SPRING  
  0S-1588 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  2D-0384 [1] BRACKET ASSEM.  
  5H-0255 [4] BOSS  
    (PART OF ASSEM. 5H254)
  0S-1585 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  4B-5273 [4] WASHER  
  2D-0383 [1] PIN  
    (PART OF ASSEM 2D384)
  0S-1594 [48] BOLT  
  3B-4506 [48] LOCKWASHER  
  3H-5368 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
  1F-8488 [1] BREATHER  
  0S-1582 [1] BOLT  
  2D-0413 [1] LEVER  
  1H-9588 [1] CAP  
  1H-9589 [1] GASKET  
  1H-0814 [1] STRAINER ASSEM.  
  3B-4621 [1] COTTER PIN  
  3H-1521 [1] PIN  
  3B-4615 [1] COTTER PIN  
  0S-1595 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  2D-0381 [7] SHIM  
  1H-0566 [2] GASKET  
  3H-3667 [2] FLANGE  
  4F-7952 [1] SEAL  
 

Information:

Service Magazine
New Metering Pump Groups For Steering Control Prevent Oil Leaks {4300, 4301, 4312}
2010/08/19

Caterpillar Parts SIS Catalog 12E :

2D-6198 STEERING GEAR ASSEMBLY
STEERING GEAR ASSEMBLY
2D-6198 STEERING GEAR ASSEMBLY
HYDRAULIC STEERING BOOSTER GROUP
2D-4257 HYDRAULIC STEERING BOOSTER GROUP
FILTER GP
2D-2150 FILTER GP
LINKAGE GROUP
2D-0430 LINKAGE GROUP
LINKAGE GROUP
2D-0460 LINKAGE GROUP
SNOW WING CONTROL LINKAGE GROUP
2D-0240 SNOW WING CONTROL LINKAGE GROUP
LINKAGE GROUP
5H-6970 LINKAGE GROUP
6D-2651 STEERING GEAR ASSEMBLY
HYDRAULIC STEERING CONVERSION GROUP
6D-5695 HYDRAULIC STEERING CONVERSION GROUP
CONTROL VALVE ASSEMBLY
4D-7850 CONTROL VALVE ASSEMBLY
TANK AND VALVE GROUP
5H-6990 TANK AND VALVE GROUP
5H-6990 TANK AND VALVE GROUP
TANK AND VALVE GROUP
4D-1685 TANK AND VALVE GROUP
4D-1685 TANK AND VALVE GROUP
TANK AND VALVE GROUP
2D-0485 TANK AND VALVE GROUP

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