| Item | Part No. | Part Name | Qty | Serial No. |
| (723-23-10604) | VALVE ASS'Y | 1181- | ||
| (723-23-10602) | VALVE ASS'Y | 1166-1180 | ||
| (723-23-10601) | VALVE ASS'Y | 1001-1165 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1663-11A0 TO Y1663-17A0. | ||||
| (723-21-03803) | VALVE SUB ASS'Y | 1181- | ||
| (723-21-03802) | VALVE SUB ASS'Y | 1166-1180 | ||
| (723-21-03801) | VALVE SUB ASS'Y | 1001-1165 | ||
| 1 | \6\ | VALVE | 1001- | |
| 2 | \6\ | VALVE | 1001- | |
| 3 | \6\ | PISTON | 1001- | |
| 4 | 723-26-14230 | SPRING | 1001- | |
| 5 | 723-26-15370 | PLUG | 1001- | |
| 6 | 723-26-15230 | PLUG | 1001- | |
| 7 | 07002-12434 | O-RING | 1001- | |
| 8 | 723-26-15840 | O-RING | 1001- | |
| 9 | 723-26-15830 | O-RING | 1001- | |
| 10 | 07000-12020 | O-RING | 1001- | |
| 11 | 07000-12120 | O-RING | 1001- | |
| 12 | 07000-11008 | O-RING | 1001- | |
| 13 | 723-26-15210 | VALVE | 1001- | |
| 14 | 723-26-15220 | PLUG | 1001- | |
| 15 | 723-26-14150 | SPRING | 1001- | |
| 16 | 07002-11223 | O-RING | 1001- |