| Item | Part No. | Part Name | Qty | Serial No. |
| 21K-70-00591 | Boom Assembly | C20001- | ||
| 1 | Boom | C20001- | ||
| 2 | 20Y-70-11651 | Seat, Welded | C20001- | |
| 3 | 21K-62-74211 | Bracket, Welded | C20001- | |
| 4 | 21K-62-74221 | Bracket, Welded | C20001- | |
| 5 | 21K-62-74231 | Bracket, Bonded | C20001- | |
| 6 | 203-70-51221 | Seat, Welded | C20001- | |
| 7 | 21K-62-74280 | Bracket, Welded | C20001- | |
| 8 | 21K-70-71311 | Bushing | C20001- | |
| 9 | 07145-00080 | Seal, Dust | C20001- |