| Item | Part No. | Part Name | Qty | Serial No. |
| 20R-01-28200 | COUPLING ASS'Y | 2501- | ||
| 1 | 20M-01-12160 | BOSS | 2501- | |
| 2 | 20R-01-11210 | RUBBER | 2501- | |
| 3 | 04025-00408 | PIN | 2501- | |
| 4 | 20M-01-16630 | BOLT | 2501- | |
| 5 | 01252-41035 | BOLT | 2501- | |
| 6 | 20N-01-43110 | COVER | 2501- | |
| 7 | 01010-51020 | BOLT | 2501- | |
| 8 | 01602-21030 | WASHER | 2501- |