| Item | Part No. | Part Name | Qty | Serial No. |
| 01 | 604 989 40 | Bottom roller assy. | ||
| 01 | 604 990 40 | Bottom roller assy. (cold weather design) | ||
| 02 | 956 312 | Roller with bush and plug | ||
| 03 | 956 313 | Bush | ||
| 04 | 956 314 | Roller | ||
| 05 | 006 688 98 | O-ring | ||
| 06 | 313 395 99 | Plug | ||
| 07 | 956 315 | O-ring | ||
| 07 | 696 526 73 | O-ring (cold weather design) | ||
| 08 | 764 391 73 | Axle | ||
| 09 | 145 800 40 | Lifetime seal | ||
| 09 | 696 525 73 | Lifetime seal (cold weather design) | ||
| 10 | 764 392 73 | End piece | ||
| 11 | 511 217 98 | Dowel sleeve |