| Item | Part No. | Part Name | Qty | Serial No. |
| 281-34-11510 | VALVE ASS'Y | 1500-1500 | ||
| 281-34-11510 | VALVE ASS'Y | 1501- | ||
| 1 | 281-34-11530 | BODY | 1501- | |
| 2 | 281-34-11540 | SEAT (KIT) | 1501- | |
| 3 | 281-34-11550 | VALVE (KIT) | 1501- | |
| 4 | 281-34-11560 | SPRING (KIT) | 1501- | |
| 5 | 281-34-11570 | CAP | 1501- | |
| 6 | 281-34-11580 | BUSHING | 1501- |