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4F3521 TRACK ROLLER GROUP--Single Flange--4 Groups Required 4F3522 TRACK ROLLER GROUP--Double Flange--10 Groups Required Serial No. 20A1 to 20A2508 inclusive. Also part of 1M9388 and 1M9483 Arrangements listed on Pages 216 and 216B. Only separate parts serviced When complete Groups are required order 1M3826 and 1M3827 shown on Page 216G. Note: 2H9482 Relief Valve is available see Pages 236 and 237 977D


UNDERCARRIAGE
ROLLER GP

TRACK LOADER 977D TRACK LOADER 20A
 977 TRAXCAVATOR 20A00001-04222 (MACHINE) UE033271 977D 20A   (1955)

UNDERCARRIAGE

ROLLER GP
4F-3521 TRACK ROLLER GROUP
TRACK ROLLER GROUP
4F-3522 TRACK ROLLER GROUP
2F-3085 TRACK ROLLER GROUP
TRACK ROLLER GROUP
2F-3086 TRACK ROLLER GROUP
8H-0780 TRACK ROLLER GROUP
 

#UE0332710150
 

4F-3522: TRACK ROLLER GROUP

4F3521 TRACK ROLLER GROUP--Single Flange--4 Groups Required
4F3522 TRACK ROLLER GROUP--Double Flange--10 Groups Required
Serial No. 20A1 to 20A2508 inclusive. Also part of 1M9388 and 1M9483 Arrangements listed on Pages 216 and 216B. Only separate parts serviced
When complete Groups are required order 1M3826 and 1M3827 shown on Page 216G. Note: 2H9482 Relief Valve is available see Pages 236 and 237
c58054 UE033271
4F3522 TRACK ROLLER GROUP Parts scheme
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Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1F-6478 [1] SHAFT  
  1F-6473 [2] GASKET  
    (PARTS OF ASSEM. 7F2463 & 7F2464)
  6B-9383 [1] COLLAR  
  4F-0324 [1] LOCK  
  0S-1601 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  7B-5638 [2] SEAL  
  1F-9022 [2] WASHER (LEATHER)  
  [2] GASKET  
    (1 OF EACH IN EACH SEAL 7B5638)
  7B-5639 [2] PLATE  
    (PART OF ASSEM 7F2463 & 7F2464)
  1A-2029 [12] BOLT  
  7B-9514 [6] LOCK  
    (PARTS OF ASSEM 7F2463 & 7F2464)
  9B-2289 [8] PIN  
    (4 IN EACH ASSEM 1F6474, 9H8579 & 9H8580)
  9B-2289 [4] PIN  
    (2 IN EACH ASSEM 1H3211)
  1F-6477 [2] BUSHING (STD)  
    (1 IN EACH ASSEM 1F6474, 9H8577 & 9H8579)
    - OR -
  1H-3210 [2] BUSHING (100 U''SIZE)  
    (1 IN EACH ASSEM 1H3211)
  7F-2464 [1] ROLLER & SHAFT ASSEM  
    (DOUBLE FLANGE)
  4F-3528 [1] ROLLER ASSEM.  
    (PART OF ASSEM 7F2464)
  7F-2463 [1] ROLLER & SHAFT ASSEM  
    (SINGLE FLANGE)
  4F-3527 [1] ROLLER ASSEM.  
    (PART OF ASSEM. 7F2463)
  6B-9384 [1] COLLAR  
  2F-1336 [1] FITTING  
  9F-0755 [2] BUSHING (STD ALUMINUM)  
    - OR -
  1F-6474 [2] BUSHING ASSEM (STD)  
    (PART OF ASSEM 7F2463 & 7F2464)
    - OR -
  1H-3211 [2] BUSHING ASSEM (100" U''SIZE)  
    - OR -
  9H-8579 [2] BUSHING ASSEM (100" O''SIZE)  
    - OR -
  9H-8577 [2] BUSHING ASSEM (.050" O''SIZE)  
 

#UE0332710151
 

2F-3085: TRACK ROLLER GROUP

2F3085 TRACK ROLLER GROUP--Single Flange--6 Groups Required
2F3086 TRACK ROLLER GROUP--Double Flange--8 Groups Required
Serial No. 20A2509 to 20A3042 inclusive. Also part of 4H6111 8H2462 and 1M413 Arrangements listed on Pages 215 and 216. Only separate parts
serviced. When complete Groups are required order 8H780 and 8H781 shown on Page 115. Note: 2H9482 Relief Valve is available see Pages 236 and 237
UE0332710152 UE033271
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Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UE0332710152
 

2F-3086: TRACK ROLLER GROUP

2F3085 TRACK ROLLER GROUP--Single Flange--6 Groups Required
2F3086 TRACK ROLLER GROUP--Double Flange--8 Groups Required
Serial No. 20A2509 to 20A3042 inclusive. Also part of 4H6111 8H2462 and 1M413 Arrangements listed on Pages 215 and 216. Only separate parts
serviced. When complete Groups are required order 8H780 and 8H781 shown on Page 115. Note: 2H9482 Relief Valve is available see Pages 236 and 237
UE0332710152 UE033271
2F3086 TRACK ROLLER GROUP Parts scheme
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UE0332710153
 

8H-0780: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve & 4S8042 Track Roller Seal Kit are available
c64798 UE033271
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-0784 [1] ROLLER & SHAFT ASSEM.  
    (DOUBLE FLANGE)
  8H-3936 [1] ROLLER ASSEM.  
    (PART OF ASSEM. 8H784)
  0S-2318 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  4F-0262 [1] LOCK  
  7M-3309 [1] COLLAR  
  9B-2289 [4] PIN  
    (2 IN EACH ASSEM. 8H3934)
  8H-3934 [2] BEARING ASSEM.  
    (PART OF ASSEM. 8H876 & 8H784)
  8H-0876 [1] ROLLER & SHAFT ASSEM.  
    (SINGLE FLANGE)
  8H-3863 [1] ROLLER ASSEM.  
    (PART OF ASSEM. 8H876)
  8H-3938 [2] BEARING  
    (1 IN EACH ASSEM. 8H3934)
  7M-3308 [1] COLLAR  
  8H-3844 [1] SHAFT  
    (PART OF ASSEM. 8H876 & 8H784)
  6H-2953 [2] RING  
  4M-1599 [1] PLUG  
    (PART OF ASSEM 8H876 & 8H784)
  8F-6711 [2] SEAL  
  1M-8747 R [2] SEAL GROUP  
  8H-2262 [4] SEAL (RUBBER)  
    (2 IN EACH SEAL GROUP 1M8747)
  4H-9105 [2] RING  
  3B-1915 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
    (PARTS OF ASSEM. 8H876 & 8H784)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0332710154
 

8H-0781: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve & 4S8042 Track Roller Seal Kit are available
c64798 UE033271
8H0781 TRACK ROLLER GROUP Parts scheme
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-0784 [1] ROLLER & SHAFT ASSEM.  
    (DOUBLE FLANGE)
  8H-3936 [1] ROLLER ASSEM.  
    (PART OF ASSEM. 8H784)
  0S-2318 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  4F-0262 [1] LOCK  
  7M-3309 [1] COLLAR  
  9B-2289 [4] PIN  
    (2 IN EACH ASSEM. 8H3934)
  8H-3934 [2] BEARING ASSEM.  
    (PART OF ASSEM. 8H876 & 8H784)
  8H-0876 [1] ROLLER & SHAFT ASSEM.  
    (SINGLE FLANGE)
  8H-3863 [1] ROLLER ASSEM.  
    (PART OF ASSEM. 8H876)
  8H-3938 [2] BEARING  
    (1 IN EACH ASSEM. 8H3934)
  7M-3308 [1] COLLAR  
  8H-3844 [1] SHAFT  
    (PART OF ASSEM. 8H876 & 8H784)
  6H-2953 [2] RING  
  4M-1599 [1] PLUG  
    (PART OF ASSEM 8H876 & 8H784)
  8F-6711 [2] SEAL  
  1M-8747 R [2] SEAL GROUP  
  8H-2262 [4] SEAL (RUBBER)  
    (2 IN EACH SEAL GROUP 1M8747)
  4H-9105 [2] RING  
  3B-1915 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
    (PARTS OF ASSEM. 8H876 & 8H784)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0332710155
 

8H-0780: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required--Field Installation--Type 1
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required--Field Installation--Type 1
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve and 4S8042 Track Roller Seal Kit are available
UE0332710156 UE033271
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UE0332710156
 

8H-0781: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required--Field Installation--Type 1
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required--Field Installation--Type 1
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve and 4S8042 Track Roller Seal Kit are available
UE0332710156 UE033271
8H0781 TRACK ROLLER GROUP Parts scheme
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

#UE0332710157
 

8H-0780: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required--Field Installation--Type 2
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required--Field Installation--Type 2
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve and 4S8042 Track Roller Seal Kit are available
c132911 UE033271
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-0784 [1] ROLLER & SHAFT ASSEM.  
    (DOUBLE FLANGE)
  8H-3936 [1] ROLLER ASSEM.  
    (PART OF ASSEM 8H784)
  0S-2318 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  4F-0262 [1] LOCK  
  7M-3309 [1] COLLAR  
  9B-2289 [4] PIN  
    (2 IN EACH ASSEM 1P9443)
  1P-9443 [2] BEARING ASSEM.  
    (PART OF ASSEM 8H876 & 8H784)
  8H-0876 [1] ROLLER & SHAFT ASSEM.  
    (SINGLE FLANGE)
  8H-3863 [1] ROLLER ASSEM.  
    (PART OF ASSEM 8H876)
  8H-3938 [2] BEARING  
    (1 IN EACH ASSEM 8H3934)
  7M-3308 [1] COLLAR  
  5M-1732 [1] SHAFT  
    (PART OF ASSEM 8H876 & 8H784)
  6H-2953 [2] RING  
  5M-1282 [1] PLUG  
    (PART OF ASSEM 8H876 & 8H784)
  8F-6711 [2] SEAL  
  1M-8747 R [2] SEAL GROUP  
  8H-2262 [4] SEAL (RUBBER)  
    (2 IN EACH SEAL GROUP 1M8747)
  4H-9105 [2] RING  
  0S-1588 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
    (PARTS OF ASSEM 8H876 & 8H784)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0332710158
 

8H-0781: TRACK ROLLER GROUP

8H780 TRACK ROLLER GROUP--Single Flange--6 Groups Required--Field Installation--Type 2
8H781 TRACK ROLLER GROUP--Double Flange--8 Groups Required--Field Installation--Type 2
Effective with Serial No. 20A3043. Also part of 1M9324 & 1M2000 Track Roller Frame Arrangements listed
on Page 216A. Note: 2H9482 Relief Valve and 4S8042 Track Roller Seal Kit are available
c132911 UE033271
8H0781 TRACK ROLLER GROUP Parts scheme
  For full view, you need register

Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  8H-0784 [1] ROLLER & SHAFT ASSEM.  
    (DOUBLE FLANGE)
  8H-3936 [1] ROLLER ASSEM.  
    (PART OF ASSEM 8H784)
  0S-2318 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  4F-0262 [1] LOCK  
  7M-3309 [1] COLLAR  
  9B-2289 [4] PIN  
    (2 IN EACH ASSEM 1P9443)
  1P-9443 [2] BEARING ASSEM.  
    (PART OF ASSEM 8H876 & 8H784)
  8H-0876 [1] ROLLER & SHAFT ASSEM.  
    (SINGLE FLANGE)
  8H-3863 [1] ROLLER ASSEM.  
    (PART OF ASSEM 8H876)
  8H-3938 [2] BEARING  
    (1 IN EACH ASSEM 8H3934)
  7M-3308 [1] COLLAR  
  5M-1732 [1] SHAFT  
    (PART OF ASSEM 8H876 & 8H784)
  6H-2953 [2] RING  
  5M-1282 [1] PLUG  
    (PART OF ASSEM 8H876 & 8H784)
  8F-6711 [2] SEAL  
  1M-8747 R [2] SEAL GROUP  
  8H-2262 [4] SEAL (RUBBER)  
    (2 IN EACH SEAL GROUP 1M8747)
  4H-9105 [2] RING  
  0S-1588 [12] BOLT  
  3B-4506 [12] LOCKWASHER  
    (PARTS OF ASSEM 8H876 & 8H784)
  R   REMFG PART MAY BE AVAILABLE
 

#UE0332710159
 

9B-0572: TRACK CARRIER ROLLER GROUP

9B572 TRACK CARRIER ROLLER GROUP--4 Groups Required
Serial No. 20A1 to 20A2508 inclusive
Also part of 1M9388 and 1M9483 Track Roller Frame Arrangements
listed on Pages 216 and 216B
c54990 UE033271
9B0572 TRACK CARRIER ROLLER GROUP Parts scheme
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Parts for your 977D TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1F-2439 [1] BUSHING  
  1F-2541 [1] BUSHING  
    (PARTS OF ASSEM. 9B571)
  5B-3679 [1] WASHER  
  3F-9141 [1] SEAL  
  2F-1336 [1] FITTING  
  0L-0472 [3] BOLT  
  5B-5155 [1] LOCK  
  5B-3681 [1] COVER  
  0S-1585 [3] BOLT  
  3B-4508 [3] LOCKWASHER  
  5B-3595 [1] SHAFT  
    (PART OF ASSEM 5H3372)
  9B-0571 [1] ROLLER ASSEM.  
  5H-3372 [1] SUPPORT ASSEM  
  0S-1572 [4] BOLT  
  3B-4510 [4] LOCKWASHER  
  5B-5069 [1] SLEEVE  
    (PART OF ASSEM 5H3372)
  1B-1057 [1] SEAL  
  5F-9423 [1] GUARD  
    (PART OF ASSEM 5H3372)
  0T-0022 [1] RING  
 

Information:

Tool Operating Manual
Idler/Roller Assembly Machine{0374, 0599, 0729, 4159, 4180}
Idler/Roller Assembly Machine{0374, 0599, 0729, 4159, 4180}
Undercarriage Reconditioning Bulletin
Reconditioning Procedure for Seal Ramps on Inverted Style Idler and Roller Shafts {0729, 4150, 4154, 4159, 6433, 7561}
Reconditioning Procedure for Seal Ramps on Inverted Style Idler and Roller Shafts {0729, 4150, 4154, 4159, 6433, 7561}
Service Magazine
Carrier Roller Replacement Rims Now Available{4154}
1984/03/12
Caterpillar Idler Welder Handles Track Idlers, Track Rollers and Railroad Rims {0679}
2004/05/24
Cat Roller Assembly Machine Simplifies Both Disassembly of the Track Rollers and Carrier Rollers and Assembly of the Track Rollers and Carrier Rollers {0685}
2004/07/05
Instructions for Filling the Oil of Nexus and Classic Carrier Roller and Idler {4154, 4159}
2004/08/16
Oil for Arctic Track Rollers and Idlers Has Changed from SAE 5W40 to SAE 0W40 {0645, 4159, 4180, 7000}
2011/08/10
Track Roller Cap Bolt Torque Procedure {4180}
2014/06/11

Caterpillar Parts SIS Catalog 977D :

4F-3521 TRACK ROLLER GROUP
TRACK ROLLER FRAME GUARD GROUP
8H-2463 TRACK ROLLER FRAME GUARD GROUP
TRACK ROLLER FRAME GROUP
3H-1678 TRACK ROLLER FRAME GROUP
TRACK ROLLER FRAME GUARD GROUP
8H-2463 TRACK ROLLER FRAME GUARD GROUP
TRACK ROLLER FRAME GUARD GROUP
3H-1866 TRACK ROLLER FRAME GUARD GROUP
TRACK ROLLER FRAME GROUP
4H-4808 TRACK ROLLER FRAME GROUP
TRACK ROLLER FRAME
3H-1678 TRACK ROLLER FRAME
FINAL DRIVE SEAL GROUP
8M-3992 FINAL DRIVE SEAL GROUP
2F-3085 TRACK ROLLER GROUP
TRACK ROLLER GROUP
2F-3086 TRACK ROLLER GROUP
8H-0780 TRACK ROLLER GROUP
TRACK ROLLER GROUP
8H-0781 TRACK ROLLER GROUP
8H-0780 TRACK ROLLER GROUP
TRACK ROLLER GROUP
8H-0781 TRACK ROLLER GROUP
8H-0780 TRACK ROLLER GROUP
TRACK ROLLER GROUP
8H-0781 TRACK ROLLER GROUP

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