| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21K-70-B7121 | BUCKET | B20001- | |
| 2 | 21K-70-B2230 | PLATE (WELDED) | B20001- | |
| 2A | 21K-70-B2240 | PLATE (WELDED) | B20001- | |
| 3 | 21K-70-B2250 | PLATE (WELDED) | B20001- | |
| 4 | 21K-70-B2210 | PLATE,R.H. (WELDED) | B20001- | |
| 5 | 21K-70-B2220 | PLATE,L.H. (WELDED) | B20001- | |
| 6 | 20Y-70-14520 | ADAPTER (WELDED) | B20001- | |
| 6A | 205-70-74420 | HOOK | B20001- | |
| 7 | 205-70-19570 | TOOTH | B20001- | |
| 8 | 09244-02496 | PIN | B20001- | |
| 9 | 20Y-70-B1361 | CUTTER,L.H. | B20966- | |
| 20Y-70-B1360 | CUTTER,L.H. | B20001-B20965 | ||
| 10 | 20Y-70-B1371 | CUTTER,R.H. | B20966- | |
| 20Y-70-B1370 | CUTTER,R.H. | B20001-B20965 | ||
| 11 | 176-32-11210 | BOLT | B20001- | |
| 12 | 01803-02430 | NUT | B20001- | |
| 13 | 21K-70-74220 | BUSHING | B20001- | |
| 14 | 21K-70-74210 | BUSHING | B20001- | |
| 15 | 21K-70-23170 | PLATE | B20001- | |
| 16 | 21K-70-23180 | SPACER¤ 0.5MM | B20001- | |
| 17 | 21K-70-23230 | SPACER¤ 1.0MM | B20001- | |
| 18 | 01010-81670 | BOLT | B20001- | |
| 19 | 01643-31645 | WASHER | B20001- | |
| 20 | 21K-70-23160 | O-RING | B20001- |