| Item | Part No. | Part Name | Qty | Serial No. |
| 21U-30-31201 | Roller Assembly, Carrier | 20509- | ||
| 1 | 21W-30-31220 | Roller | 20509- | |
| 2 | 20N-30-71221 | Shaft | 20509- | |
| 3 | 06000-06205 | Bearing | 20509- | |
| 4 | 04064-02512 | Ring, Snap | 20509- | |
| 5 | 21W-30-31240 | Seal | 20509- | |
| 6 | 21W-30-31250 | Cap | 20509- | |
| 7 | 01010-81685 | Bolt | 20509- | |
| 8 | 01643-31645 | Washer | 20509- |