| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21-272794-21 | SPROCKET,REAR DRUM | (1143)- | |
| 2 | 21-521365-01 | BOLT,REAMER | (1143)- | |
| 3 | 00027-87830 | NUT | (1143)- | |
| 4 | 22-590140-01 | CHAIN | (1143)- | |
| 5 | 21-711214-01 | SPROCKET,FRONT DRUM | (1143)- | |
| 6 | 02030-21064 | BOLT | (1143)- | |
| 7 | 00027-87830 | NUT | (1143)- | |
| 8 | 21-613005-01 | GUARD,FRONT DRUM SPROCKET | (1143)- | |
| 9 | 02030-00832 | BOLT | (1143)- | |
| 10 | 01602-01338 | WASHER | (1143)- |