| Item | Part No. | Part Name | Qty | Serial No. |
| 201-973-0020 | BOOM ASS'Y | 2001- | ||
| 1 | \6\ | BOOM | 2001- | |
| 2 | 201-70-21182 | BUSHING | 2001- | |
| 3 | 07020-00900 | FITTING,GREASE | 2001- | |
| 4 | 07145-00060 | SEAL,DUST | 2001- | |
| 5 | 201-70-51220 | SHAFT | 2001- | |
| 6 | 201-70-21210 | PLATE | 2001- | |
| 7 | 01010-51230 | BOLT | 2001- | |
| 8 | 01602-21236 | WASHER,SPRING | 2001- | |
| 9 | 202-70-48460 | SPACER¤ 1.0MM | 2001- | |
| 10 | 201-70-51230 | PIN | 2001- | |
| 11 | 07020-00675 | FITTING,GREASE | 2001- | |
| 12 | 04082-00212 | LOCK | 2001- | |
| 13 | 01010-51230 | BOLT | 2001- | |
| 14 | 01602-21236 | WASHER,SPRING | 2001- | |
| 15 | 203-70-24150 | SPACER¤ 1.0MM | 2001- | |
| 16 | 20X-70-21230 | SHAFT | 2001- | |
| 17 | 201-70-21210 | PLATE | 2001- | |
| 18 | 01010-51230 | BOLT | 2001- | |
| 19 | 01602-21236 | WASHER,SPRING | 2001- | |
| 20 | 203-70-34260 | SPACER¤ 0.5MM | 2001- | |
| 202-70-11640 | SPACER¤ 1.0MM | 2001- | ||
| 202-70-11650 | SPACER¤ 2.0MM | 2001- | ||
| 21 | 20X-70-21210 | SHAFT | 2001- | |
| 22 | 201-70-21210 | PLATE | 2001- | |
| 23 | 01010-51230 | BOLT | 2001- | |
| 24 | 01602-21236 | WASHER,SPRING | 2001- | |
| 25 | 201-70-51220 | SHAFT | 2001- | |
| 26 | 201-70-21210 | PLATE | 2001- | |
| 27 | 01010-51230 | BOLT | 2001- | |
| 28 | 01602-21236 | WASHER,SPRING | 2001- | |
| 29 | 203-70-34260 | SPACER¤ 0.5MM | 2001- | |
| 202-70-11640 | SPACER¤ 1.0MM | 2001- | ||
| 201-70-21290 | SPACER¤ 1.0MM | 2001- | ||
| 20B-46-21180 | PLATE¤ 1.0MM | 2001- | ||
| 30 | 202-70-48460 | SPACER¤ 1.0MM | 2001- | |
| 203-70-44430 | SPACER¤ 2.0MM | 2001- |