| Ref | Part Number | Description |
|---|---|---|
| 1 | 420819341 | Crankshaft Ass'Y This part replaces 421000671. |
| 2 | 420929650 | Drive Pin 5 X 10 |
| 3 | 420933456 | Plain Half-Bearing |
| 4 | 420933466 | Plain Half-Bearing |
| 5 | 420933475 | Half-Ring |
| 6 | 420837559 | Balance Shaft Ass'Y This part replaces 420837556. |
| 7 | 420933442 | Plain Bearing Half This part replaces 420933441. |
| 8 | 420933470 | Half-Ring |
| 9 | 420660280 | Stop Sleeve |
| 10 | 420947770 | Output Sleeve This part replaces 420847952. |
| 11 | 420630551 | Sealing Ring |
| 13 | 420640991 | Connecting rod Screw M10 X 1 This part replaces 420640990. |
| 14 | 420933510 | Bearing Sleeve |
| 15 | 420933523 | Half-Bearing |
| 17 | 420890380 | Piston Set Ring, Standard |
| 17 | 420890381 | Piston Set Ring, Oversize |
| 18 | 420216250 | Piston Pin |
| 19 | 420845580 | Circlip |