| Item | Part No. | Part Name | Qty | Serial No. |
| 01 | 256 164 40 | Anticavitation valve assy. NG 20 | ||
| 02 | 501 245 98 | O-ring | ||
| 03 | 367 124 99 | O-ring | ||
| 04 | 690 996 | Support ring | ||
| 05 | Housing | |||
| 06 | Valve cone | |||
| 07 | 994 889 | Compression spring | ||
| 08 | 994 890 | Plug | ||
| 994 841 | Seal kit fig-nos: 02-04 |