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HYDRAULIC BRAKE CONTROL (6D2480 N/S) Effective with Serial No. 10R972-Up and 22R842-Up 2D9600 Cylinder parts are shown on Page 69 Refer also to Pages 121 and 122 for special parts 120


BRAKING SYSTEM
CONTROL GP
CYLINDER GP
BRAKE GP
POWER TRAIN
WHEEL GP
CAP GP-HUB
FRAME AND BODY
AXLE GP


BRAKING SYSTEM

CONTROL GP
 

#UEG0231S0130
 

6D-2480: HYDRAULIC BRAKE CONTROL

HYDRAULIC BRAKE CONTROL (6D2480 N/S)
Effective with Serial No. 10R972-Up and 22R842-Up
2D9600 Cylinder parts are shown on Page 69
Refer also to Pages 121 and 122 for special parts
c138082 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5D-3376 [1] TUBE ASSEM.  
    (LEFT HAND)
  8M-2772 [1] CLIP  
  5D-3374 [1] TUBE ASSEM.  
    (RIGHT HAND)
  4B-8756 [4] NUT  
    (2 IN EACH ASSEM. 5D3374 & 5D3376)
  7F-5055 [2] BRACKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1B-9982 [2] NUT  
  4B-7054 [2] LOCK  
  4B-8756 [2] NUT  
    (1 IN EACH ASSEM 6D9566 & 6D9565)
  0S-0509 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  9S-1350 C [2] CLIP  
  0S-1617 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  3H-3920 [2] TEE ASSEM.  
  4B-8720 [2] PLUG  
  9S-1310 C [6] CLIP  
  6D-9566 [1] TUBE ASSEM. (R.H.)  
  6D-9565 [1] TUBE ASSEM. (L.H.)  
  2D-7805 [2] ARMOR  
    (1 IN EACH ASSEM. 6D9566 & 6D9565)
  5D-8352 [2] NUT  
    (1 IN EACH ASSEM. 6D9566 & 6D9565)
  4D-8122 [1] TEE  
  3L-9689 [1] WASHER  
  0S-1591 [1] BOLT  
  3B-4506 [1] LOCKWASHER  
  7D-6281 C [1] TUBE ASSEM.  
  4B-8774 [2] NUT  
    (PART OF ASSEM. 7D6281)
  2D-9600 Y [1] CYLINDER ASSEM.  
    (SEE SEPARATE ILLUSTRATION)
  5B-3254 [1] NUT  
  2D-8718 [1] ROD  
  0S-0175 [1] PIN  
  3B-4617 [1] COTTER PIN  
  5K-6438 C [2] CLIP  
  5B-0494 C [2] GROMMET  
  0S-0509 C [2] BOLT  
  3B-4506 C [2] LOCKWASHER  
  4B-0418 [1] CLIP  
  5B-0494 [1] GROMMET  
  0S-0509 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  4B-8761 [2] HOSE ASSEM.  
  0T-0065 [2] BOLT  
  1D-4717 [2] NUT  
  3B-4506 [2] LOCKWASHER  
  3B-1915 [4] BOLT  
  1D-4717 [4] NUT  
  3B-4506 [4] LOCKWASHER  
  2D-9608 [1] CONNECTOR  
  5H-3703 [1] GASKET  
  4H-6143 [1] BOLT  
  4H-6145 [1] GASKET  
  5M-6214 [1] PLUG  
  2D-8820 [1] BRACKET  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0131
 

2D-9600: MASTER CYLINDER ASSEMBLY

2D9600 MASTER CYLINDER ASSEMBLY
Part of Hydraulic Brake Control
c109691 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2D-9594 [1] BODY  
  1F-4652 [1] CUP  
    (PART OF ASSEM. 5B3223)
  5B-3225 [1] PLATE  
  5B-3226 H [1] WIRE  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  5D-8755 [1] MASTER CYLINDER KIT  
    (Consists of Parts Marked H)
  5B-3227 H [1] BOOT  
  3D-2306 [1] ROD ASSEM.  
  5B-3223 H [1] PISTON ASSEM.  
  9B-1544 [1] CAP ASSEM.  
  9B-1545 [1] GASKET  
  3H-5454 H [1] VALVE ASSEM.  
  5B-3219 H [1] SPRING ASSEM.  
  5B-3222 H [1] CUP  
 

#UEG0231S0132
 

HYDRAULIC BRAKE

HYDRAULIC BRAKE
5D8645 & 5D8646 Brake parts are shown on Page 70
Refer also to Page 122 for special parts
c95600 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-8645 [1] BRAKE ASSEM. (Right Hand)  
  5D-8646 Y [1] BRAKE ASSEM. (Left Hand)  
    (See Separate Illustration)
2. 2D-1345 [2] DRUM  
3. 1A-8537 [16] BOLT  
  3B-4510 [16] LOCKWASHER  
4. 4D-1726 [36] BOLT  
  4D-6433 [36] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0231S0133
 

5D-8645: BRAKE ASSEMBLY--R.H.,BRAKE ASSEMBLY--L.H.

5D8645 BRAKE ASSEMBLY--R.H.
5D8646 BRAKE ASSEMBLY--L.H.
Part of 5D8680 Hydraulic Brake & 6D423 Tandem Front Brake Groups shown on
Pages 69 & 121
c227401 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-0532 [1] CYLINDER ASSEM.  
    (Right Hand Upper-Left Hand Upper)
2. 6D-0547 [2] COVER  
3. 6D-0551 [2] SPRING  
4. 6D-0552 R [2] SHOE AND LINING ASSEM.  
5. 6D-0533 [1] CYLINDER ASSEM.  
    (Right Hand Lower)
  6D-0534 [1] CYLINDER ASSEM.  
    (Left Hand Lower)
    (Each Includes)
6. 6D-0557 [1] SCREW  
7. 6D-0537 [1] PLATE ASSEM. (R.H.)  
    (Includes)
  9D-9215 C [2] RIVET  
8. 6D-0541 [2] SUPPORT ASSEM. (R.H.)  
    (Each Includes)
9. 6D-0543 [1] SCREW  
10. 6D-0545 [1] WHEEL  
11. 6D-0546 [1] SPRING  
12. 1H-3329 [1] SCREW ASSEM  
13. 6D-7450 [2] PIN  
14. 6D-0538 [1] PLATE ASSEM.  
    (Includes)
  9D-9215 C [2] RIVET  
15. 6D-0542 [2] SUPPORT ASSEM. (L.H.)  
    (Each Includes)
16. 6D-0544 [1] SCREW  
17. 6D-0545 [1] WHEEL  
18. 6D-0546 [1] SPRING  
19. 1H-3329 [1] SCREW ASSEM.  
20. 6D-0548 [1] TUBE ASSEM.  
21. 6D-0549 [2] SPRING  
22. 2H-3755 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6D-0554 [1] BRAKE LINING KIT  
    (Consists of a complete set of LININGS AND RIVETS FOR ONE WHEEL)
  6D-0553 [1] GUIDE BOLT KIT  
    (Includes cotter pins, bolts, washers AND CASTLE NUTS FOR ONE WHEEL)
  6D-0555 [1] WHEEL CYLINDER KIT  
    (Includes spring assembly, cups AND BOOTS FOR ONE CYLINDER)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0231S0134
 

5D-8646: BRAKE ASSEMBLY--R.H.,BRAKE ASSEMBLY--L.H.

5D8645 BRAKE ASSEMBLY--R.H.
5D8646 BRAKE ASSEMBLY--L.H.
Part of 5D8680 Hydraulic Brake & 6D423 Tandem Front Brake Groups shown on
Pages 69 & 121
c227401 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6D-0532 [1] CYLINDER ASSEM.  
    (Right Hand Upper-Left Hand Upper)
2. 6D-0547 [2] COVER  
3. 6D-0551 [2] SPRING  
4. 6D-0552 R [2] SHOE AND LINING ASSEM.  
5. 6D-0533 [1] CYLINDER ASSEM.  
    (Right Hand Lower)
  6D-0534 [1] CYLINDER ASSEM.  
    (Left Hand Lower)
    (Each Includes)
6. 6D-0557 [1] SCREW  
7. 6D-0537 [1] PLATE ASSEM. (R.H.)  
    (Includes)
  9D-9215 C [2] RIVET  
8. 6D-0541 [2] SUPPORT ASSEM. (R.H.)  
    (Each Includes)
9. 6D-0543 [1] SCREW  
10. 6D-0545 [1] WHEEL  
11. 6D-0546 [1] SPRING  
12. 1H-3329 [1] SCREW ASSEM  
13. 6D-7450 [2] PIN  
14. 6D-0538 [1] PLATE ASSEM.  
    (Includes)
  9D-9215 C [2] RIVET  
15. 6D-0542 [2] SUPPORT ASSEM. (L.H.)  
    (Each Includes)
16. 6D-0544 [1] SCREW  
17. 6D-0545 [1] WHEEL  
18. 6D-0546 [1] SPRING  
19. 1H-3329 [1] SCREW ASSEM.  
20. 6D-0548 [1] TUBE ASSEM.  
21. 6D-0549 [2] SPRING  
22. 2H-3755 [4] BOLT  
  3B-4505 [4] LOCKWASHER  
    THE FOLLOWING REPAIR KITS ARE AVAILABLE:
  6D-0554 [1] BRAKE LINING KIT  
    (Consists of a complete set of LININGS AND RIVETS FOR ONE WHEEL)
  6D-0553 [1] GUIDE BOLT KIT  
    (Includes cotter pins, bolts, washers AND CASTLE NUTS FOR ONE WHEEL)
  6D-0555 [1] WHEEL CYLINDER KIT  
    (Includes spring assembly, cups AND BOOTS FOR ONE CYLINDER)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0231S0135
 

FRONT WHEELS AND TIRES

FRONT WHEELS AND TIRES--13.00 x 24 Tubeless Tires
Refer also to Pages 126 through 129 for special parts
c96274 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2D-2567 [2] FLANGE  
  2D-2566 [2] RING  
  2D-2565 [2] SEAL  
  2D-2568 [2] BASE  
  2D-5238 [16] STUD  
    (8 in each Wheel Assem. 5D3335)
  4D-6171 [16] NUT  
  2D-8114 [16] CLAMP  
  3B-8489 [2] FITTING  
  1B-3909 [2] CUP (Outer)  
  6H-3568 [2] CUP (Inner)  
  2D-4134 [2] SLEEVE  
    (1 of each in each Wheel Assem. 5D3335)
  5D-3335 [2] WHEEL ASSEM.  
  2D-2633 [2] CAP  
  2D-2628 [2] CORE  
    (1 each in Housing Assem. 6D443)
  6D-0337 [2] VALVE ASSEM.  
  6D-0443 [2] HOUSING ASSEM.  
  2D-2631 [2] NUT  
  2D-2630 [2] WASHER  
  2D-2629 [2] GROMMET  
    (1 each in Valve Assem. 6D337)
 

#UEG0231S0136
 

HUB CAP

HUB CAP
c58088 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  3D-2327 [2] GASKET  
  3D-2328 [2] CAP  
  3L-0526 [6] BOLT  
  3B-4507 [6] LOCKWASHER  
 

#UEG0231S0137
 

2D-4140: AXLE GP-FRONT

FRONT AXLE (2D4140 N/S)
Serial No. 10R1 to 10R2132 inclusive and 22R1 to 22R938 inclusive
c109513 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2D-5961 [1] PIN  
  3B-8489 [1] FITTING  
  8F-8804 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  2D-8118 [1] BAR ASSEM.  
  4F-6424 [2] BUSHING  
    (PART OF ASSEM. 2D8118)
  4D-9925 [1] AXLE ASSEM.  
  6B-7708 [2] BOLT  
  1B-4518 [2] NUT  
  3B-4631 [2] COTTER PIN  
  3B-8489 [2] FITTING  
  3B-8489 [2] FITTING  
  2D-4216 [1] KNUCKLE (L.H.)  
  1B-4156 [2] NUT  
  8B-9787 [2] PIN  
  3B-4615 [2] COTTER PIN  
  2D-4211 [2] ARM  
  1B-4444 [2] NUT  
  3B-5302 [2] COTTER PIN  
  3F-6333 [2] PIN  
  3B-4640 [2] COTTER PIN  
  3B-8489 [2] FITTING  
  2D-4364 [1] ROD ASSEM. (L.H.)  
  3F-6338 [1] END (L.H.)  
  3B-6706 [2] PIN  
  3B-4640 [2] COTTER PIN  
  3B-8489 [1] FITTING  
  2F-9047 [1] BLOCK  
  4D-6834 [1] WASHER  
  4D-6835 [1] BUSHING  
    (PART OF ASSEM. 4D9925)
  5D-1705 [2] BEARING  
    (PART OF ASSEM. 4D9925)
  3B-8488 [1] FITTING  
  2B-0947 [2] BOLT  
  1D-4719 [2] NUT  
  3F-6334 [1] END (R.H.)  
  9S-1354 [1] NUT  
  3B-4510 [1] LOCKWASHER  
  1B-8714 [1] KEY  
  4D-9926 [1] ROD ASSEM.  
    (PART OF ASSEM. 4D9925)
  6F-1064 [1] BRACKET  
    (PART OF ASSEM. 2D8118)
  2F-9074 [1] LINK  
  4D-9781 [1] WASHER  
  3B-5313 [1] COTTER PIN  
  3B-8486 [2] FITTING  
  3B-4629 [1] COTTER PIN  
  1A-5665 [1] WASHER  
  2B-7411 [1] PLUG  
  4F-2699 [2] BLOCK  
    (PART OF ASSEM. 2D8118)
  6D-7337 [1] ARM ASSEM. (R.H.)  
  6D-7338 [1] ARM ASSEM. (L.H.)  
  2D-4187 [4] BUSHING  
    (2 IN EACH ARM ASSEM.)
  3B-8485 [4] FITTING  
  4B-5180 [2] CONE  
  1D-4271 [2] WASHER  
  2D-4215 [1] KNUCKLE (R H)  
  6H-3566 [2] CONE  
  4B-5171 [2] SEAL  
  2D-4205 [2] BLOCK  
  3B-8489 [2] FITTING  
  2D-4204 [4] SEAL  
  1B-4438 [2] NUT  
  3B-6824 [2] WASHER  
  [2] COTTER PIN  
  2D-9638 [2] PLUG  
  2D-9639 [2] FORK  
  4F-2928 [2] SEAL  
    (1 OF EACH IN EACH ASSEM. 2D4364 & 2D4363)
  2D-4363 [1] ROD ASSEM. (R.H.)  
 

#UEG0231S0138
 

2D-4140: AXLE GP-FRONT

FRONT AXLE (2D4140 N/S)--Sectional Views
Serial No. 10R1 to 10R2132 inclusive and 22R1 to 22R938 inclusive
c102226 UEG0231S
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Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0V-0375 [1] BOLT  
  3B-4508 [1] LOCKWASHER  
  5F-8363 [4] SHIM  
  4D-6926 [1] SEGMENT  
  2F-8003 [1] GASKET  
  9H-2257 [1] SEAL  
  9F-9522 [1] BOLT  
  3B-4514 [1] LOCKWASHER  
  0T-0320 [3] BOLT  
  3B-4507 [3] LOCKWASHER  
  4F-6463 [10] SHIM  
  4D-1608 [1] SEAL  
  4F-6464 [1] WASHER  
  2H-6863 [1] WORM ASSEM.  
  2F-8001 [1] SHAFT  
  1D-1158 [1] KEY  
  8F-7425 [1] WORM  
  1F-1195 [1] BUSHING  
    (PART OF AXLE ASSEM. 4D9925)
  5D-0068 [1] WASHER  
  2F-7999 [1] BEARING  
  5D-0067 [1] PIN  
    (PART OF AXLE ASSEM. 4D9925)
  3B-8489 [1] FITTING  
  2F-8000 [1] COVER  
  3B-6695 [1] GEAR (28 TEETH)  
  0S-1594 [8] BOLT  
  3B-4506 [8] LOCKWASHER  
  1D-4707 [2] BOLT  
  3B-4507 [2] LOCKWASHER  
  3B-8253 [1] CAP  
  3B-8251 [1] GASKET  
  1B-4518 [1] NUT  
  3B-4631 [1] COTTER PIN  
  3B-6692 [1] SLEEVE  
  1F-1652 [1] BUSHING  
    (PART OF AXLE ASSEM. 4D9925)
  3B-6691 [1] KEY  
  1F-1653 [1] BUSHING  
    (PART OF AXLE ASSEM. 4D9925)
  3B-6694 [1] PINION (9 TEETH)  
  7M-4926 [2] RETAINER  
  2D-4202 [2] PLATE  
  5D-7462 [2] PIN  
  2F-8084 [2] BEARING  
  2D-4201 [2] SEAL  
  2D-4209 [2] PIN  
  3B-8489 [4] FITTING  
  0L-1169 [2] BOLT  
  1D-4720 [2] NUT  
  3B-4510 [2] LOCKWASHER  
  1F-7558 [2] LOCK  
 

#UEG0231S0139
 

2D-4140: AXLE GP-FRONT

FRONT AXLE (2D4140 N/S)
Effective with Serial No. 10R2133-Up and 22R939-Up
c137972 UEG0231S
  For full view, you need register

Parts for your 120 MOTOR GRADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2D-5961 [1] PIN  
  3B-8489 [1] FITTING  
  8F-8804 [2] BOLT  
  1D-4719 [2] NUT  
  3B-4508 [2] LOCKWASHER  
  2D-8118 [1] BAR ASSEM.  
  4F-6424 [2] BUSHING  
    (PART OF ASSEM. 2D8118)
  4D-9925 [1] AXLE ASSEM.  
  8D-0995 [1] ROD ASSEM. (L.H.)  
  8D-0903 [1] ROD ASSEM.  
    (Part of 8D995 Assem.)
  6B-7708 [2] BOLT  
  1B-4518 [2] NUT  
  3B-4631 [2] COTTER PIN  
  3B-8489 [2] FITTING  
  3B-8489 [2] FITTING  
  2D-4216 [1] KNUCKLE (L.H.)  
  1B-4156 [2] NUT  
  8B-9787 [2] PIN  
  3B-4615 [2] COTTER PIN  
  2D-4211 [2] ARM  
  1B-4444 [2] NUT  
  3B-5302 [2] COTTER PIN  
  3F-6333 [2] PIN  
  3B-4640 [2] COTTER PIN  
  3B-8489 [2] FITTING  
  3F-6338 [1] END (L.H.)  
  3B-6706 [2] PIN  
  3B-4640 [2] COTTER PIN  
  3B-8489 [1] FITTING  
  2F-9047 [1] BLOCK  
  5D-1705 [2] BEARING  
    (PART OF ASSEM. 4D9925)
  4D-6834 [1] WASHER  
  4D-6835 [1] BUSHING  
    (PART OF ASSEM. 4D9925)
  3B-8488 [1] FITTING  
  2B-0947 [2] BOLT  
  1D-4719 [2] NUT  
  3F-6334 [1] END (R.H.)  
  9S-1354 [1] NUT  
  3B-4510 [1] LOCKWASHER  
  1B-8714 [1] KEY  
  4D-9926 [1] ROD ASSEM.  
    (PART OF ASSEM. 4D9925)
  6F-1064 [1] BRACKET  
    (PART OF ASSEM. 2D8118)
  2F-9074 [1] LINK  
  4D-9781 [1] WASHER  
  3B-5313 [1] COTTER PIN  
  3B-8486 [2] FITTING  
  3B-4629 [1] COTTER PIN  
  1A-5665 [1] WASHER  
  2B-7411 [1] PLUG  
  4F-2699 [2] BLOCK  
    (PART OF ASSEM. 2D8118)
  6D-7337 [1] ARM ASSEM. (R.H.)  
  6D-7338 [1] ARM. ASSEM. (L.H.)  
  2D-4187 [4] BUSHING  
    (2 IN EACH ARM ASSEM.)
  3B-8485 [4] FITTING  
  4B-5180 [2] CONE  
  1D-4271 [2] WASHER  
  2D-4215 [1] KNUCKLE (R.H.)  
  6H-3566 [2] CONE  
  4B-5171 [2] SEAL  
  2D-4205 [2] BLOCK  
  3B-8489 [2] FITTING  
  2D-4204 [4] SEAL  
  1B-4438 [2] NUT  
  3B-6824 [2] WASHER  
  [2] COTTER PIN  
  2D-9638 [2] PLUG  
  8D-0719 [2] FORK  
  6F-6673 [2] SEAL  
    (1 of each in each Assem. 8D994 & 8D995)
  8D-0994 C [1] ROD ASSEM. (R.H.)  
  8D-0902 [1] ROD ASSEM.  
    (Part of 8D994 Assem.)
  C   INDICATES CHANGE
 

Information:

Reuse And Salvage Guidelines
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Final Drive Steering System, Wheel Braking System, and Wheels & Tires Salvage and Reuse Manual Contents {4000, 4050, 4100, 4250, 4300}
Disassembly and Assembly
Flywheel Clutch
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Brake Control Valve (Power Shift)
NO. 120 & NO. 140 MOTOR GRADER POWER TRAIN
Service Magazine

Caterpillar Parts SIS Catalog 120 :

Truck sale:

250,000 
Caterpillar 120 LVR, motor graders, Construction
- motor graders
RING POWER CORP.
250,000 
Caterpillar 120 LVR, motor graders, Construction
- motor graders
RING POWER CORP.
278,720 
Caterpillar 120, motor graders, Construction
- motor graders
FINANZAUTO S.A.
250,000 
Caterpillar 120 LVR, motor graders, Construction
- motor graders
RING POWER CORP.
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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.