| Item | Part No. | Part Name | Qty | Serial No. |
| 421-64-15702 | VALVE ASS'Y | 53001- | ||
| 1 | \6\ | HOUSING | 53001- | |
| 2 | \6\ | SPOOL | 53001- | |
| 3 | 421-64-15710 | POPPET | 53001- | |
| 4 | 421-64-15340 | SPRING | 53001- | |
| 5 | 421-64-15230 | PLUG | 53001- | |
| 6 | 421-64-15240 | O-RING | 53001- | |
| 7 | 421-64-15250 | RING,BACK-UP | 53001- | |
| 8 | 421-64-15210 | SPRING | 53001- | |
| 9 | 421-64-15690 | SEAT,SPRING | 53001- | |
| 10 | 421-64-15680 | SCREW | 53001- | |
| 11 | 421-64-15780 | O-RING | 53001- | |
| 12 | 421-64-35380 | SEAL,OIL | 55183- | |
| 12 | \0\421-64-15280 | SEAL,OIL | 53001-55182 | |
| 13 | 421-64-35390 | SEAL,DUST | 55183- | |
| 13 | \0\421-64-15290 | SEAL,DUST | 53001-55182 | |
| 14 | 421-64-15260 | PLATE | 53001- | |
| 15 | 421-64-15220 | CAP | 53001- | |
| 16 | 421-64-15770 | BOLT | 53001- | |
| 17 | 421-64-15270 | BOLT | 53001- | |
| 18 | \6\ | SPOOL | 53001- | |
| 19 | 421-64-15320 | SHIM | 53001- | |
| 20 | 421-64-15180 | SPRING | 53001- | |
| 21 | 421-64-15440 | PLUG | 53001- | |
| 22 | 421-64-15470 | O-RING | 53001- | |
| 23 | 421-64-15480 | RING,BACK-UP | 53001- | |
| 24 | 421-64-15460 | O-RING | 53001- | |
| 25 | 421-64-15880 | VALVE ASS'Y,RELIEF | 53001- | |
| 26 | 421-64-15450 | PLUG | 53001- | |
| 27 | 421-64-15460 | O-RING | 53001- | |
| 28 | 421-64-15330 | POPPET | 53001- | |
| 29 | 421-64-15860 | SPRING | 53001- | |
| 30 | 421-64-15310 | PLUG | 53001- | |
| 31 | 421-64-15850 | O-RING | 53001- | |
| 32 | 421-64-15810 | PLUG | 53001- | |
| 33 | 421-64-15820 | O-RING | 53001- | |
| 34 | 421-64-15890 | VALVE ASS'Y,SUCTION AND SAFETY | 53001- | |
| 35 | 421-64-15170 | O-RING | 53001- | |
| 36 | 07043-70108 | PLUG | 53001- |