| Item | Part No. | Part Name | Qty | Serial No. |
| 20G-70-00050 | BOOM ASS'Y | 1001- | ||
| 1 | \6\ | BOOM | 1001- | |
| 2 | 20G-70-11380 | BUSHING | 1001- | |
| 3 | 21K-70-11380 | SPACER | 1001- | |
| 4 | 07145-00080 | SEAL,DUST | 1001- | |
| 5 | 07020-00900 | FITTING,GREASE | 1001- | |
| 6 | 20G-70-11180 | PIN | 1001- | |
| 7 | 205-70-51450 | SPACER¤ 1.0MM | 1001- | |
| 8 | 20G-70-11170 | PLATE | 1001- | |
| 9 | 01010-51635 | BOLT | 1001- | |
| 10 | 01643-31645 | WASHER | 1001- | |
| 11 | 21K-70-11390 | PIN | 1001- | |
| 12 | 21K-70-11410 | PLATE | 1001- | |
| 12A | 20G-70-19190 | SPACER | 1001- | |
| 12B | 203-70-24170 | SPACER¤ 1.0MM | 1001- | |
| 13 | 01019-11640 | BOLT | 1001- | |
| 14 | 01580-11613 | NUT | 1001- | |
| 15 | 20K-70-11250 | PIN | 1001- | |
| 16 | 20G-70-11170 | PLATE | 1001- | |
| 17 | 01010-51635 | BOLT | 1001- | |
| 18 | 01643-31645 | WASHER | 1001- | |
| 19 | 20G-70-11240 | PIN | 1001- | |
| 20 | 205-70-51520 | SPACER¤ 1.0MM | 1001- | |
| 21 | 20G-70-11170 | PLATE | 1001- | |
| 22 | 01010-51635 | BOLT | 1001- | |
| 23 | 01643-51645 | WASHER | 1001- | |
| 24 | 20G-70-11190 | PIN | 1001- | |
| 25 | 203-70-24170 | SPACER¤ 1.0MM | 1001- | |
| 26 | 20G-70-11170 | PLATE | 1001- | |
| 27 | 01010-51635 | BOLT | 1001- | |
| 28 | 01643-31645 | WASHER | 1001- |