| Item | Part No. | Part Name | Qty | Serial No. |
| 21W-973-0111 | BOOM ASS'Y,1ST | 10371- | ||
| 21W-973-0110 | BOOM ASS'Y,1ST | 5001-10370 | ||
| 1 | \6\ | BOOM,1ST | 10371- | |
| 1 | \6\ | BOOM,1ST | 5001-10370 | |
| 2 | 201-70-21182 | BUSHING | 5001- | |
| 3 | 07020-00900 | FITTING,GREASE | 5001- | |
| 4 | 07145-00060 | SEAL,DUST | 5001- | |
| 21W-973-0121 | BOOM ASS'Y,2ND | 10371- | ||
| 21W-973-0120 | BOOM ASS'Y,2ND | 5001-10370 | ||
| 5 | \6\ | BOOM,2ND | 10371- | |
| 5 | \6\ | BOOM,2ND | 5001-10370 | |
| 6 | 20T-70-71520 | BUSHING | 5001- | |
| 7 | 07020-00675 | FITTING,GREASE | 5001- | |
| 8 | 07020-00000 | FITTING,GREASE | 5001- | |
| 9 | 07145-00100 | SEAL,DUST | 5001- | |
| 10 | 21W-70-21142 | BRACKET,3RD | 10371- | |
| 10 | 21W-973-2430 | BRACKET,3RD | 5001-10370 | |
| 21W-70-00322 | LINK ASSY | 13853- | ||
| 21W-70-00320 | LINK ASS'Y,SUB | 5001-13852 | ||
| 11 | \6\ | LINK SUB | 13853- | |
| 11 | \6\ | LINK,SUB | 5001-13852 | |
| 12 | 07144-10503 | BUSHING | 5001- | |
| 13 | 07145-00050 | SEAL,DUST | 5001- | |
| 14 | 07020-00675 | FITTING,GREASE | 5001- |