| Item | Part No. | Part Name | Qty | Serial No. |
| 20U-70-00251 | 1ST BOOM ASS'Y | 20001- | ||
| 1 | \6\ | BOOM | 20001- | |
| 2 | 20T-70-81140 | BUSHING | 20001- | |
| 3 | 07020-00675 | FITTING,GREASE | 20001- | |
| 4 | 07145-00050 | SEAL,DUST | 20001- | |
| 20U-70-00261 | 2ND BOOM ASS'Y | 20001- | ||
| 5 | \6\ | BOOM | 20001- | |
| 6 | 20U-70-41490 | BUSHING | 20001- | |
| 7 | 07020-00000 | FITTING,GREASE | 20001- | |
| 8 | 07145-00080 | SEAL,DUST | 20001- | |
| 9 | 20U-70-41711 | BRACKET | 20547- | |
| 9 | \0\20U-70-41710 | BRACKET | 20001-20546 | |
| 10 | 07020-00000 | FITTING,GREASE | 20001- | |
| 20U-70-00370 | LINK ASS'Y | 20001- | ||
| 11 | \6\ | LINK | 20001- | |
| 12 | 21W-70-31130 | BUSHING | 20001- | |
| 13 | 07145-00050 | SEAL,DUST | 20001- | |
| 14 | 07020-00000 | FITTING,GREASE | 20001- | |
| 15 | 07020-00900 | FITTING,GREASE | 20001- |