| 1 | Cylinder Cover T20 | 1 | ||
| 2 | Diaphragm 90 | 1 | 8971205254  | |
| 3 | Piston | 1 | ||
| 4 | Washer | 2 | 8951112794  | |
| 5 | Cover | 1 | 8950726204  | |
| 6 | Boot | 1 | 8977548862  | |
| 7 | Compression Spring | 1 | 8960801694  | |
| 8 | Ring | 1 | ||
| 9 | Non pressure chamber type 20 | 1 | ||
| 10 | Hexagon nut | 2 | ||
| 11 | Pressure piece | 1 |