| Item | Part No. | Part Name | Qty | Serial No. |
| 21K-966-K222 | BOOM ASS'Y, SECOND | K40181- | ||
| 21K-966-K221 | BOOM ASS'Y, SECOND | K40001-K40180 | ||
| 1 | 07145-00080 | SEAL | K40001- | |
| 2 | 21K-70-71311 | BUSHING | K40181- | |
| 21K-70-71310 | BUSHING | K40001-K40180 | ||
| 3 | 21K-966-K171 | BOOM, FIRST | K40001- | |
| 4 | 01572-21019 | SEAT (WELDED) | K40001- | |
| 5 | 01572-21225 | SEAT (WELDED) | K40001- | |
| 6 | 08036-D1630 | CLIP (WELDED) | K40001- | |
| 7 | 20E-70-K1510 | SEAT (WELDED) | K40001- | |
| 8 | 21K-70-31280 | SEAT (WELDED) | K40001- | |
| 9 | 566-16-11240 | BOSS (WELDED) | K40001- | |
| 10 | 207-70-61220 | PIN | K40001- | |
| 11 | 207-70-71280 | SPACER¤ 1.0MM | K40001- | |
| 12 | 205-70-66580 | PLATE | K40001- | |
| 13 | 01010-81230 | BOLT | K40001- | |
| 14 | 01643-31232 | WASHER | K40001- | |
| 15 | 20Y-70-11180 | PIN | K40001- | |
| 16 | 20Y-70-31431 | SPACER¤ 1.0MM | K40001- | |
| \0\20Y-70-31430 | SPACER¤ 1.0MM | K40001- | ||
| 17 | 206-70-71451 | SPACER¤ 2.0MM | K40001- | |
| \0\206-70-71450 | SPACER¤ 2.0MM | K40001- | ||
| 18 | 205-70-66580 | PLATE | K40001- | |
| 19 | 01010-81230 | BOLT | K40001- | |
| 20 | 01643-31232 | WASHER | K40001- | |
| 21 | 21K-70-71180 | PIN | K40001- | |
| 22 | 21K-70-71411 | SPACER¤ 2.0MM | K40001- | |
| \0\21K-70-71410 | SPACER¤ 2.0MM | K40001- | ||
| 23 | 21K-70-71421 | SPACER¤ 2.5MM | K40001- | |
| \0\21K-70-71420 | SPACER¤ 2.5MM | K40001- | ||
| 24 | 21K-70-71431 | SPACER¤ 3.0MM | K40001- | |
| \0\21K-70-71430 | SPACER¤ 3.0MM | K40001- | ||
| 25 | 205-70-7130 | PLATE | K40001- | |
| 26 | 01010-81235 | BOLT | K40001- | |
| 27 | 01643-31232 | WASHER | K40001- |