| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20J-70-H1190 | Arm Assembly | H55951- | |
| 2 | 21K-70-72230 | Bushing | H55951- | |
| 3 | 21K-70-72211 | Bushing | H55951- | |
| 4 | 20Y-70-32371 | Bushing | H55951- | |
| 5 | 21K-70-32120 | Bushing | H55951- | |
| 6 | 20Y-70-23220 | Seal | H55951- | |
| 7 | 20Y-70-23220 | Seal | H55951- | |
| 8 | 07145-00080 | Seal, Dust | H55951- |