| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21D-946-1120 | 2nd BOOM | 21D0220079- | |
| 2 | 21D-09-89140 | FITTING | 21D0220079- | |
| 3 | 21D-09-34140 | SPACER | 21D0220079- | |
| 4 | 21D-09-33130 | BUSHING | 21D0220079- | |
| 5 | 21D-09-67120 | GASKET | 21D0220079- | |
| 6 | 21D-09-43130 | PIN | 21D0220079- | |
| 7 | 01010-51230 | BOLT | 21D0220079- | |
| 8 | 21D-70-14120 | WASHER | 21D0220079- | |
| 9 | 201-70-23140 | SPACER (1 mm) | 21D0220079- | |
| 10 | 21D-09-34150 | SPACER | 21D0220079- | |
| 11 | 21D-09-33110 | BUSHING | 21D0220079- | |
| 12 | 21D-09-67110 | GASKET | 21D0220079- | |
| 13 | 21D-946-1140 | PIN | 21D0220079- | |
| 14 | 21D-946-1150 | RING | 21D0220079- | |
| 15 | 01011-51210 | BOLT | 21D0220079- | |
| 16 | 21D-09-23180 | NUT | 21D0220079- | |
| 17 | 21D-09-42130 | PIN | 21D0220079- | |
| 18 | 21D-09-85110 | PIN, COTTER | 21D0220079- | |
| 19 | 21D-09-22450 | NUT | 21D0220079- | |
| 20 | 21D-09-74600 | WASHER | 21D0220079- | |
| 21 | 21D-09-39120 | SHIM | 21D0220079- |