| Item | Part No. | Part Name | Qty | Serial No. |
| UC4100637797 | VALVE ASS'Y | 1801- | ||
| 1 | \6\ | COVER | 1801- | |
| 2 | UC1704002631 | GUIDE | 1801- | |
| 3 | UC1100438529 | POPPET | 1801- | |
| 4 | UC1100438539 | GUIDE | 1801- | |
| 5 | UC1301159002 | O-RING | 1033- | |
| 6 | UC1303032514 | BOLT | 1801- | |
| 7 | UC1301153004 | O-RING | 1801- | |
| 8 | UC1301541007 | BOLT | 1801- | |
| 9 | UC1708300407 | BOLT | 1801- | |
| 10 | \6\ | PLUG | 1033- |