| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20Y-944-K561 | ARM | K50598-K52389 | |
| 20Y-944-K560 | ARM | K50001-K50597 | ||
| 20Y-970-3570 | BRACKET (WELDED) | K50001-K52389 | ||
| 2 | 20J-70-12180 | SEAT, WELDED | K50598-K52389 | |
| 3 | 20Y-62-K5830 | BRACKET, WELDED | K50598-K52389 | |
| 4 | 206-62-K2740 | BRACKET, WELDED | K50598-K52389 | |
| 5 | 20Y-70-31272 | BUSHING | K50001-K52389 | |
| 6 | 20Y-70-32410 | BUSHING | K50001-K52389 | |
| 7 | 205-70-73180 | BUSHING | K50001-K52389 | |
| 8 | 07020-00000 | FITTING, GREASE | K50001-K52389 | |
| 9 | 07145-00090 | SEAL | K50001-K52389 | |
| 10 | 20Y-70-23220 | SEAL | K50001-K52389 | |
| 11 | 20Y-70-23230 | SEAL | K50001-K52389 | |
| 12 | 20Y-70-11180 | PIN | K50001-K52389 | |
| 13 | 205-70-66580 | PLATE | K50001-K52389 | |
| 14 | 01010-81230 | BOLT | K50001-K52389 | |
| 15 | 01643-31232 | WASHER | K50001-K52389 | |
| 16 | 20Y-70-31430 | SPACER, 1.0MM | K50001-K52389 | |
| 17 | 205-70-71190 | PIN | K50001-K52389 | |
| 18 | 205-70-66580 | PLATE | K50001-K52389 | |
| 19 | 01010-81230 | BOLT | K50001-K52389 | |
| 20 | 01643-31232 | WASHER | K50001-K52389 | |
| 21 | 20Y-70-31381 | SPACER, 1.0MM | K50864-K52389 | |
| 20Y-70-31380 | SPACER, 1.0MM | K50001-K50863 | ||
| 22 | 20Y-70-31391 | SPACER, 2.0MM | K50864-K52389 | |
| 20Y-70-31390 | SPACER, 2.0MM | K50001-K50863 | ||
| 23 | (707-01-XR140) | CYLINDER GROUP | K50001-K52389 |