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7F2421 CYLINDER GROUP--R.H.--6" Bore x 34" Stroke--Type 3 7F2422 CYLINDER GROUP--L.H.--6" Bore x 34" Stroke--Type 3 Effective with No. 8A Bulldozer Serial No. 72D1-Up and No. 8S Bulldozer Serial No. 73D1-Up For use on D8 Tractors having Serial No. 1H2409 to 1H9999, 8R1 to 8R9999 and 2U1 to 2U23537 inclusive 8A




HYDRAULIC SYSTEM

CYLINDER GP
 

#UE0326300040
 

7F-2422: CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.

7F2421 CYLINDER GROUP--R.H.--6" Bore x 34" Stroke--Type 3
7F2422 CYLINDER GROUP--L.H.--6" Bore x 34" Stroke--Type 3
Effective with No. 8A Bulldozer Serial No. 72D1-Up and No. 8S Bulldozer Serial No. 73D1-Up
For use on D8 Tractors having Serial No. 1H2409 to 1H9999, 8R1 to 8R9999 and 2U1 to 2U23537 inclusive
c93643 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-2365 [1] CYLINDER ASSEM.  
  0L-1329 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  2H-6473 [2] BEARING ASSEM.  
  3B-8489 [2] FITTING  
  5F-3662 [1] COVER ASSEM.  
  4F-8424 [1] RETAINER  
  5F-3663 [1] PIN  
  0V-0375 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  7F-2339 [1] NUT  
  8F-6999 [1] WASHER ASSEM.  
  4B-2120 [1] KEY  
  1J-0708 [1] RING  
  3J-4441 [1] SEAL ASSEM.  
  1J-8569 [4] INSERT  
  1J-8568 [2] PLUNGER  
    (PARTS OF PISTON ASSEM. 5J4333)
  7F-2357 [1] ROD  
  1J-8360 [2] WASHER  
  5J-4333 [1] PISTON ASSEM.  
  4F-8419 [1] GASKET  
  0S-1572 [6] BOLT  
  3B-4510 [6] LOCKWASHER  
  0S-1625 [2] BOLT  
  3B-4510 [2] LOCKWASHER  
  5F-5643 [1] HEAD ASSEM. (R.H.)  
    (PART OF GROUP 7F2421)
  5F-5644 [1] HEAD ASSEM. (L.H.)  
    (PART OF GROUP 7F2422)
  4F-8421 [6] SHIM  
  5B-1797 [1] PIN (3.25" LONG)  
    - OR -
  2B-1890 [1] PIN (4" LONG)  
  3B-4615 [1] COTTER PIN  
  5F-0689 [1] PIN  
  1J-0334 [1] GLAND  
  5F-1178 [1] TRUNNION  
  0L-1329 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  5F-1176 [1] RETAINER (.375" THICK)  
  5F-1177 [1] RETAINER (50" THICK)  
  0S-1571 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1K-6982 [1] SEAL  
  9F-6635 [1] SHIM  
  4F-8420 [1] PACKING  
 

#UE0326300041
 

7F-2421: HYDRAULIC CYLINDER GROUP--R.H.,HYDRAULIC CYLINDER GROUP--L.H.

7F2421 HYDRAULIC CYLINDER GROUP--R.H.--Type 1
7F2422 HYDRAULIC CYLINDER GROUP--L.H.--Type 1
Effective with No. 8A Bulldozer Serial No. 72D1 and No. 8S Bulldozer Serial No. 73D1
For use on D8 Tractors having Serial No. 1H2409 to 1H9999, 8R1 to 8R9999 and 2U1 to 2U23537 inclusive
c41740 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-2365 [1] CYLINDER ASSEM.  
  0L-1329 [2] CAP SCREW  
  3B-4508 [2] LOCKWASHER  
  2H-6473 [2] BEARING ASSEM.  
  3B-8489 [2] FITTING  
  5F-3662 [1] COVER ASSEM.  
  4F-8424 [1] RETAINER  
  5F-3663 [1] PIN  
  0V-0375 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  7F-2339 [1] NUT  
  8F-6999 [1] WASHER  
  4B-2120 [1] KEY  
  7F-2377 [1] PISTON ASSEM.  
  7F-2274 [4] RING  
  7F-9106 [4] INSERT  
  7F-2220 [4] PLUNGER  
    (PARTS OF ASSEM. 7F2377)
  7F-2357 [1] ROD  
  7F-2328 [2] WASHER  
  6F-0711 [1] RING  
  5B-1890 [2] SPRING  
    (PART OF ASSEM. 7F2377)
  4F-8419 [1] GASKET  
  0S-1572 [6] CAP SCREW  
  3B-4510 [6] LOCKWASHER  
  0S-1625 [2] CAP SCREW  
  3B-4510 [2] LOCKWASHER  
  5F-5643 [1] HEAD ASSEM. (R.H.)  
    (PART OF 7F2421 CYL. GROUP)
  5F-5644 [1] HEAD ASSEM. (L.H.)  
    (PART OF 7F2422 CYL. GROUP)
  4F-8421 [6] SHIM  
  5B-1797 [1] PIN (3 1/4" LONG)  
    -OR-
  2B-1980 [1] PIN (4" LONG)  
  3B-4615 [1] COTTER PIN  
  5F-0689 [1] PIN  
  1J-0334 [1] GLAND  
  5F-1178 [1] TRUNNION  
  0L-1329 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  5F-1176 [1] RETAINER (3/8" THICK)  
  5F-1177 [1] RETAINER (1/2" THICK)  
  0S-1571 [4] CAP SCREW  
  3B-4506 [4] LOCKWASHER  
  1K-6982 [1] SEAL  
  9F-6635 [1] SHIM  
  4F-8420 [1] PACKING  
 

#UE0326300042
 

7F-2422: HYDRAULIC CYLINDER GROUP--R.H.,HYDRAULIC CYLINDER GROUP--L.H.

7F2421 HYDRAULIC CYLINDER GROUP--R.H.--Type 1
7F2422 HYDRAULIC CYLINDER GROUP--L.H.--Type 1
Effective with No. 8A Bulldozer Serial No. 72D1 and No. 8S Bulldozer Serial No. 73D1
For use on D8 Tractors having Serial No. 1H2409 to 1H9999, 8R1 to 8R9999 and 2U1 to 2U23537 inclusive
c41740 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-2365 [1] CYLINDER ASSEM.  
  0L-1329 [2] CAP SCREW  
  3B-4508 [2] LOCKWASHER  
  2H-6473 [2] BEARING ASSEM.  
  3B-8489 [2] FITTING  
  5F-3662 [1] COVER ASSEM.  
  4F-8424 [1] RETAINER  
  5F-3663 [1] PIN  
  0V-0375 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  7F-2339 [1] NUT  
  8F-6999 [1] WASHER  
  4B-2120 [1] KEY  
  7F-2377 [1] PISTON ASSEM.  
  7F-2274 [4] RING  
  7F-9106 [4] INSERT  
  7F-2220 [4] PLUNGER  
    (PARTS OF ASSEM. 7F2377)
  7F-2357 [1] ROD  
  7F-2328 [2] WASHER  
  6F-0711 [1] RING  
  5B-1890 [2] SPRING  
    (PART OF ASSEM. 7F2377)
  4F-8419 [1] GASKET  
  0S-1572 [6] CAP SCREW  
  3B-4510 [6] LOCKWASHER  
  0S-1625 [2] CAP SCREW  
  3B-4510 [2] LOCKWASHER  
  5F-5643 [1] HEAD ASSEM. (R.H.)  
    (PART OF 7F2421 CYL. GROUP)
  5F-5644 [1] HEAD ASSEM. (L.H.)  
    (PART OF 7F2422 CYL. GROUP)
  4F-8421 [6] SHIM  
  5B-1797 [1] PIN (3 1/4" LONG)  
    -OR-
  2B-1980 [1] PIN (4" LONG)  
  3B-4615 [1] COTTER PIN  
  5F-0689 [1] PIN  
  1J-0334 [1] GLAND  
  5F-1178 [1] TRUNNION  
  0L-1329 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  5F-1176 [1] RETAINER (3/8" THICK)  
  5F-1177 [1] RETAINER (1/2" THICK)  
  0S-1571 [4] CAP SCREW  
  3B-4506 [4] LOCKWASHER  
  1K-6982 [1] SEAL  
  9F-6635 [1] SHIM  
  4F-8420 [1] PACKING  
 

#UE0326300043
 

4H-6961: HYDRAULIC CYLINDER GROUP

4H6961 HYDRAULIC CYLINDER GROUP--2 Groups Required--Type 1
For use with No. 46 Hydraulic Control
For D8 Tractors Serial No. 13A1 to 13A3703, 14A1 to 14A9635 and 15A1 to 15A3354 inclusive
c41739 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-2365 [1] CYLINDER ASSEM.  
  2H-6473 [2] BEARING ASSEM.  
  3B-8489 [2] FITTING  
  5F-3662 [1] COVER ASSEM.  
  4F-8424 [1] RETAINER  
  5F-3663 [1] PIN  
  0V-0375 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  7F-2339 [1] NUT  
  8F-6999 [1] WASHER  
  4B-2120 [1] KEY  
  7F-2377 [1] PISTON ASSEM.  
  7F-2274 [4] RING  
  7F-9106 [4] INSERT  
  7F-2220 [4] PLUNGER  
    (PARTS OF ASSEM. 7F2377)
  4F-7952 [1] SEAL  
  8F-5439 [2] BRACKET  
    (PART OF ASSEM. 4H7016)
  7F-2357 [1] ROD  
  7F-2328 [2] WASHER  
  6F-0711 [1] RING  
  5B-1890 [2] SPRING  
    (PART OF ASSEM. 7F2377)
  4F-8419 [1] GASKET  
  0S-1572 [6] CAP SCREW  
  3B-4510 [6] LOCKWASHER  
  0S-1625 [2] CAP SCREW  
  3B-4510 [2] LOCKWASHER  
  4H-7016 [1] HEAD ASSEM.  
  9F-6635 [1] SHIM (.0478" THICK)  
  4F-8421 [6] SHIM (.010" THICK)  
  1J-0334 [1] GLAND  
  5F-1178 [1] TRUNNION  
  5F-0689 [1] PIN  
  2B-1980 [1] PIN  
  3B-4615 [1] COTTER PIN  
  5F-1176 [1] RETAINER (3/8" THICK)  
  5F-1177 [1] RETAINER (1/2" THICK)  
  0L-1329 [3] CAP SCREW  
  3B-4508 [3] LOCKWASHER  
  0S-1571 [4] CAP SCREW  
  3B-4506 [4] LOCKWASHER  
  1K-6982 [1] SEAL  
  4F-8420 [1] PACKING  
 

#UE0326300044
 

4H-6961: HYDRAULIC CYLINDER GROUP

4H6961 HYDRAULIC CYLINDER GROUP--2 Groups Required--Type 2
For use with No. 46 Hydraulic Control
For D8 Tractors Serial No. 13A1 to 13A3703, 14A1 to 14A9635 and 15A1 to 15A3354 inclusive
c57680 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  7F-2365 [1] CYLINDER ASSEM.  
  2H-6473 [2] BEARING ASSEM.  
  3B-8489 [2] FITTING  
  5F-3662 [1] COVER ASSEM.  
  4F-8424 [1] RETAINER  
  5F-3663 [1] PIN  
  0V-0375 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  7F-2339 [1] NUT  
  8F-6999 [1] WASHER  
  4B-2120 [1] KEY  
  2J-6975 [1] PISTON ASSEM.  
  7F-2274 [4] RING  
  1J-8569 [4] INSERT  
  1J-8568 [2] PLUNGER  
    (PARTS OF ASSEM. 2J6975)
  4F-7952 [1] SEAL  
  8F-5439 [2] BRACKET  
    (PART OF ASSEM. 4H7016)
  7F-2357 [1] ROD  
  1J-8360 [2] WASHER  
  6F-0711 [1] RING  
  4F-8419 [1] GASKET  
  0S-1572 [6] BOLT  
  3B-4510 [6] LOCKWASHER  
  0S-1625 [2] BOLT  
  3B-4510 [2] LOCKWASHER  
  4H-7016 [1] HEAD ASSEM.  
  9F-6635 [1] SHIM (.0478" THICK)  
  4F-8421 [6] SHIM (.010" THICK)  
  1J-0334 [1] GLAND  
  5F-1178 [1] TRUNNION  
  5F-0689 [1] PIN  
  2B-1980 [1] PIN  
  3B-4615 [1] COTTER PIN  
  5F-1176 [1] RETAINER (3/8" THICK)  
  5F-1177 [1] RETAINER (1/2" THICK)  
  0L-1329 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  0S-1571 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1K-6982 [1] SEAL  
  4F-8420 [1] PACKING  
 

#UE0326300045
 

1J-7127: HYDRAULIC TILT DOZER CYLINDER GROUP

1J7127 HYDRAULIC TILT DOZER CYLINDER GROUP
Effective with No. 8S Bulldozer Serial No. 73D1
Only separate parts serviced. When complete Group is required order 2J3894
c85563 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1J-2100 [1] RING  
  1H-5728 [1] SEAL  
  2J-2515 [1] PISTON  
  1J-2198 [1] PIN  
  1J-2194 [1] RING  
  1J-7123 [1] BUSHING  
    (PART OF CYLINDER ASSEM. 1J7120)
  1J-7120 [1] CYLINDER ASSEM.  
  1J-2145 [1] NUT  
  3H-0107 [1] RING  
  1J-3665 [2] RING  
  1J-2137 [2] PACKING  
  1J-2147 [1] TUBE ASSEM.  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1J-2175 [4] BOLT  
  3B-4518 [4] LOCKWASHER  
  1J-2152 [1] HEAD ASSEM.  
  1J-7126 [1] ROD ASSEM.  
  1A-2469 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  1J-2150 [1] SEAL  
  1J-2111 [1] RETAINER  
  1J-2149 [3] SHIM  
  1J-2148 [1] PACKING  
  1J-2200 [1] BUSHING  
    (PART OF HEAD ASSEM. 1J2152)
  1J-2176 [1] RING  
  0S-1588 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
  2K-0190 [4] FLANGE  
  5F-1678 [2] SEAL  
  1J-4012 [1] GUARD ASSEM.  
 

#UE0326300046
 

2J-3894: HYDRAULIC TILT DOZER CYLINDER GROUP

2J3894 HYDRAULIC TILT DOZER CYLINDER GROUP--Type 2
Effective with No. 8S Bulldozer Serial No. 73D1
c95307 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  5J-5559 [2] SEAL ASSEM.  
  1H-5728 [1] SEAL  
  5J-5557 [1] PISTON  
  1J-2198 [1] PIN  
  1J-2194 [1] RING  
  1J-7123 [1] BUSHING  
    (PART OF CYLINDER ASSEM. 2J6778)
  2J-6778 [1] CYLINDER ASSEM.  
  1J-2145 [1] NUT  
  3H-0107 [1] RING  
  4J-7376 [1] RING  
  2J-6776 [1] TUBE ASSEM.  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1J-2175 [4] BOLT  
  3B-4518 [4] LOCKWASHER  
  5J-5558 [1] HEAD  
  2J-3895 [1] ROD ASSEM.  
  1J-7121 [1] BALLSTUD  
    (PART OF ROD ASSEM. 2J3895)
  0S-1587 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  5J-7032 [1] WIPER  
  5J-7031 [1] RETAINER  
  1J-2149 [3] SHIM  
  1J-2148 [1] PACKING  
  1J-2176 [1] RING  
  0S-1588 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
  2K-0190 [4] FLANGE  
  5F-1678 [2] SEAL  
  1J-4012 [1] GUARD ASSEM.  
 

#UE0326300047
 

2J-3894: HYDRAULIC TILT DOZER CYLINDER GROUP

2J3894 HYDRAULIC TILT DOZER CYLINDER GROUP--Type 1
Effective with No. 8S Bulldozer Serial No. 73D1
c93119 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1J-2100 [1] RING  
  1H-5728 [1] SEAL  
  2J-2515 [1] PISTON  
  1J-2198 [1] PIN  
  1J-2194 [1] RING  
  1J-7123 [1] BUSHING  
    (PART OF CYLINDER ASSEM. 2J6778)
  2J-6778 [1] CYLINDER ASSEM.  
  1J-2145 [1] NUT  
  3H-0107 [1] RING  
  1J-3665 [2] RING  
  1J-2137 [2] PACKING  
  2J-6776 [1] TUBE ASSEM  
  0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  1J-2175 [4] BOLT  
  3B-4518 [4] LOCKWASHER  
  1J-2152 [1] HEAD ASSEM.  
  2J-3895 [1] ROD ASSEM.  
  1J-7121 [1] BALLSTUD  
    (PART OF ROD ASSEM 2J3895)
  0S-1587 [4] BOLT  
  3B-4508 [4] LOCKWASHER  
  4J-8981 [1] SEAL  
  1J-2111 [1] RETAINER  
  1J-2149 [3] SHIM  
  1J-2148 [1] PACKING  
  1J-2200 [1] BUSHING  
    (PART OF HEAD ASSEM 1J2152)
  1J-2176 [1] RING  
  0S-1588 [10] BOLT  
  3B-4506 [10] LOCKWASHER  
  2K-0190 [4] FLANGE  
  5F-1678 [2] SEAL  
  1J-4012 [1] GUARD ASSEM.  
 

#UE0326300048
 

1J-7021: TRUNNION GROUP

1J7021 TRUNNION GROUP
For D8 Tractors Serial No. 5E8001 to 5E8035, 1H1 to 1H9999, 8R1 to 8R9999,
2U1 to 2U23537, 13A1 to 13A3703, 14A1 to 14A7131 and 15A1 to 15A2515 inclusive
c49138 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1J-7020 [2] TRUNNION ASSEM.  
  1J-7019 [2] TRUNNION  
    (1 IN EACH ASSEM. 1J7020)
 

#UE0326300049
 

1J-6853: TRUNNION GROUP

1J6853 TRUNNION GROUP
For D8 Tractors Serial No. 14A7132 to 14A9635 and 15A2516 to 15A3354 inclusive
c49137 UE032630
  For full view, you need register

Parts for your 8A BULLDOZER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1973 [12] BOLT  
  3B-4514 [12] LOCKWASHER  
  1J-3925 [2] TRUNNION  
    (1 IN EACH ASSEM. 1J7078)
  1J-7078 [2] PLATE ASSEM.  
 

Information:

Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED CYLINDERS AND RODS
PRODUCT LINE ADDITIONS: REMANUFACTURED CYLINDERS AND RODS

Caterpillar Parts SIS Catalog 8A :

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