| Item | Part No. | Part Name | Qty | Serial No. |
| 21T-70-00204 | Boom Assembly | 20532- | ||
| 21T-70-00203 | Boom Assembly | 20371-20531 | ||
| 21T-70-00202 | Boom Assembly | 20196-20370 | ||
| 1 | Boom | 20532- | ||
| 1 | Boom | 20371-20531 | ||
| 1 | Boom | 20196-20370 | ||
| 2 | 156-21-11150 | Seat, Welded | 20196- | |
| 3 | 176-06-41490 | Seat, Welded | 20196- | |
| 4 | 205-62-73410 | Seat, Welded | 20196- | |
| 5 | 21N-68-32630 | Seat, Welded | 20196- | |
| 6 | 21T-68-31960 | Block, Welded | 20196- | |
| 7 | 21T-70-31511 | Clamp, Welded | 20196- | |
| 8 | 21T-70-31531 | Clamp, Welded | 20196- | |
| 9 | 21T-70-31541 | Clamp, Welded | 20196- | |
| 10 | 21T-70-31610 | Clamp, Welded | 20196- | |
| 11 | 21T-70-31670 | Plate, Welded | 20196- | |
| 12 | 21T-70-31620 | Clamp, Welded | 20196- | |
| 13 | 21T-70-31630 | Clamp, Welded | 20196- | |
| 14 | 21T-70-31640 | Clamp, Welded | 20196- | |
| 15 | 21T-70-71130 | Bracket, Welded | 20196- | |
| 16 | 21T-70-71210 | Bushing | 20196- | |
| 17 | 21T-70-31250 | Bushing | 20196- | |
| 18 | 21T-64-39540 | Seat | 20196- | |
| 19 | 209-72-11311 | Seal | 20196- |
