| AZ2203040031 Main shaft assembly |
| Number | Material Encoding | Name | Quantity |
| 1 | WG2210040210 | Main shaft sliding sleeve | 3 |
| 2 | WG2210040424 | Forth-speed gear of main shaft | 1 |
| 3 | WG2210040425 | Third-speed gear of main shaft | 1 |
| 4 | WG2229040420 | Flattened round wire snap ring for hole | 5 |
| 5 | WG2229040073 | Main shaft gear block slice | 5 |
| 6 | WG2210040608 | Spline block slice | 5 |
| 7 | WG2229040072 | Main shaft gear spacer | 3 |
| 8 | WG2203040030 | Main shaft assembly with ball head | 1 |
| 9 | WG2210040416 | Second-speed gear of main shaft | 1 |
| 10 | WG2210040440 | First-speed gear of main shaft | 1 |
| 11 | WG2210040319 | Reverse gear of main shaft | 1 |
| 12 | WG2229040223 | Hex key | 1 |
| 13 | Q5280514 | Elastic cylindrical pin | 1 |
