| Item | Part No. | Part Name | Qty | Serial No. |
| 0 | PB4464 | PRESSURE REGULATOR | ||
| 1 | BODY | |||
| 2 | VS2247 | CAP, NUT | ||
| 3 | GASKET (1) | |||
| 4 | VJ5847 | SPRING | ||
| 5 | VJ5848 | PLATE, DIAPHRAGM | ||
| 6 | VS2495 | SPRING, REGULATING | ||
| 7 | VJ5849 | PLATE, SPRING | ||
| 8 | VS2496 | BODY, REGULATOR | ||
| 9 | DIAPHRAGM (1) | |||
| 10 | POPPET (1) | |||
| 11 | VS2497 | BUTTON, SPRING | ||
| 12 | VS2498 | SCREW, ADJUSTMENT | ||
| 13 | VS1703 | JAM NUT | ||
| 14 | SCREW (1) | |||
| NS|16 | RK1278 | NOTE: (1) INCLUDED IN RK1278 REPAIR KIT. |