| Item | Part No. | Part Name | Qty | Serial No. |
| 01 | 323 641 40 | Pressure relief valve (15 bar) | ||
| 02 | Disc These parts are not sold separately | |||
| 03 | Spring | |||
| 04 | O-ring These parts are not sold separately | |||
| 06 | Sealing washer These parts are not sold separately | |||
| 994 283 | Seal kit fig-nos. 02,04 and 06 |