| Item | Part No. | Part Name | Qty | Serial No. |
| 21U-30-31301 | Roller Assembly, Track | 20509- | ||
| 1 | 20S-30-84112 | Roller | 20509- | |
| 2 | 20S-30-32150 | Collar | 20509- | |
| 3 | 10E-30-14130 | Shaft | 20509- | |
| 4 | 10E-30-14140 | Bushing | 20509- | |
| 5 | 20R-30-11270 | Ring, Snap | 20509- | |
| 6 | 07000-02021 | O-ring | 20509- | |
| 6 | 110-30-00086 | Floating Seal Assembly | 20509- | |
| 7 | Seal | 20509- | ||
| 8 | O-ring | 20509- | ||
| 9 | 01010-81435 | Bolt | 20509- | |
| 10 | 01643-31445 | Washer, Flat | 20509- |