| Item | Part No. | Part Name | Qty | Serial No. |
| 21Y-973-0110 | ARM ASS'Y | 1001- | ||
| 1 | \6\ | ARM | 1001- | |
| 2 | 203-70-56130 | BUSHING | 1001- | |
| 3 | 203-70-56150 | BUSHING | 1001- | |
| 4 | 203-70-42182 | BUSHING | 1001- | |
| 5 | 07020-00900 | FITTING,GREASE | 1001- | |
| 6 | 07020-00000 | FITTING,GREASE | 1001- | |
| 7 | 07145-00070 | SEAL,DUST | 1001- | |
| 8 | 203-70-33210 | SEAL,DUST | 1001- | |
| 9 | 203-70-42121 | PIN | 1001- | |
| 10 | 21W-70-11310 | PLATE | 1001- | |
| 11 | 01010-81230 | BOLT | 1001- | |
| 12 | 01643-31232 | WASHER | 1001- | |
| 13 | 21Y-70-14790 | SPACER, 1.0MM | 1313- | |
| 13 | 203-70-24170 | SPACER, 1.0MM | 1001-1312 | |
| 13 | 21Y-70-14820 | SPACER, 2.0MM | 1313- | |
| 13 | 203-70-41430 | SPACER, 2.0MM | 1001-1312 | |
| 14 | 07020-00675 | FITTING,GREASE | 1001- | |
| 15 | 202-70-52121 | PIN | 1001- | |
| 16 | 21Y-70-14710 | SPACER, 1.0MM | 1313- | |
| 16 | 202-70-48460 | SPACER, 1.0MM | 1001-1312 | |
| 17 | 21W-70-11310 | PLATE | 1001- | |
| 18 | 01010-81230 | BOLT | 1001- | |
| 19 | 01643-31232 | WASHER | 1001- | |
| 20 | (203-63-X2731) | CYLINDER GROUP,BUCKET (SEE FIG.Y1620-41A0) | 1001- |