| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20Y-70-B1000 | Boom | B10001- | |
| 2 | 20Y-62-45172 | Bracket | B10001- | |
| 3 | 20Y-62-45170 | Bracket,Welded | B10001- | |
| 4 | 20Y-62-45210 | Bracket,Welded | B10001- | |
| 5 | 20Y-62-52720 | Bracket,Welded | B10001- | |
| 6 | 20Y-70-11651 | Seat,Welded | B10001- | |
| 7 | 20Y-70-21640 | Bushing | B10001- | |
| 8 | 07145-00090 | Seal, Dust | B10001- | |
| 9 | 07049-01215 | Plug | B10001- |