| Item | Part No. | Part Name | Qty | Serial No. |
| 21K-70-00911 | Arm Assembly | K50001- | ||
| 1 | Arm | K50001- | ||
| 2 | 21K-70-72C80 | Seat,Welded | K50001- | |
| 3 | 20Y-970-3560 | Bracket,Welded | K50001- | |
| 4 | 20Y-970-3570 | Bracket,Welded | K50001- | |
| 5 | 20J-70-12180 | Seat,Welded | K50001- | |
| 6 | 20J-47-11250 | Seat,Welded | K50001- | |
| 7 | 21K-70-72410 | Seat,Welded | K50001- | |
| 8 | 21K-70-72270 | Bushing | K50001- | |
| 9 | 205-70-73180 | Bushing | K50001- | |
| 10 | 21K-70-72290 | Bushing | K50001- | |
| 11 | 07020-00000 | Fitting, Grease | K50001- | |
| 12 | 07020-00900 | Fitting, Grease | K50001- | |
| 13 | 20Y-70-23220 | Seal, Dust | K50001- | |
| 14 | 20Y-70-23220 | Seal, Dust | K50001- | |
| 15 | 07145-00080 | Seal, Dust | K50001- | |
| 16 | 20Y-70-31161 | Pin | K50001- | |
| 17 | 205-70-66581 | Plate | K50001- | |
| 18 | 01010-81230 | Bolt | K50001- | |
| 19 | 01643-31232 | Washer | K50001- | |
| 20 | 21K-70-71650 | Spacer, 1.0mm | K50001- | |
| 21 | 21K-70-71192 | Pin | K50001- | |
| 22 | 205-70-66581 | Plate | K50001- | |
| 23 | 01010-81230 | Bolt | K50001- | |
| 24 | 01643-31232 | Washer | K50001- | |
| 25 | 21K-70-71630 | Spacer, 1.0mm | K50001- | |
| 26 | 21K-70-71640 | Spacer, 2.0mm | K50001- |