| Item | Part No. | Part Name | Qty | Serial No. |
| 01 | 257 590 40 | Top roller assy. | ||
| 01 | 461 168 40 | Top roller assy. (cold weather design) | ||
| 02 | 967 575 | Axle assy. | ||
| 03 | 180 472 40 | Lifetime seal | ||
| 03 | 696 523 73 | Lifetime seal (cold weather design) | ||
| 04 | 967 576 | Bush | ||
| 05 | 769 111 73 | Top roller body assy. consist. of fig-nos. 04+06 | ||
| 06 | 967 577 | Flanged bush | ||
| 07 | 967 578 | Stop washer | ||
| 08 | 307 823 99 | Bolt | ||
| 09 | 967 580 | Gasket | ||
| 10 | 967 579 | Stop washer | ||
| 11 | 967 581 | Cover | ||
| 12 | 339 890 99 | Seal ring |