| Item | Part No. | Part Name | Qty | Serial No. |
| 418-64-15201 | VALVE ASSEMBLY, PRIORITY | |||
| 1 | (NSS) | HOUSING | ||
| 2 | 416-64-15220 | SPOOL | ||
| 3 | 418-64-15210 | SPRING | ||
| 4 | 416-64-15250 | PLUG | ||
| 5 | 416-64-15270 | PLUG | ||
| 6 | 416-64-15260 | O-RING | ||
| 7 | 416-64-15240 | VALVE, RELIEF | ||
| F1 - USED ONLY ON MACHINES EQUIPPED WITH KOMATSU STEERING | ||||
| VALVE 418-64-15400. |