| Item | Part No. | Part Name | Qty | Serial No. |
| (723-23-10504) | VALVE ASS'Y | 1241- | ||
| (723-23-10503) | VALVE ASS'Y | 1224-1240 | ||
| (723-23-10502) | VALVE ASS'Y | 1201-1223 | ||
| (723-23-10501) | VALVE ASS'Y | 1001-1200 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1663-01A0 TO Y1663-04A0. | ||||
| 1 | 723-20-62500 | VALVE ASS'Y,RELIEF | 1001- | |
| 2 | 700-22-11410 | O-RING | 1001- | |
| 3 | 700-80-64220 | RING | 1001- | |
| 4 | 07002-12434 | O-RING | 1001- | |
| 5 | 723-20-63300 | VALVE ASS'Y,RELIEF | 1001- | |
| 6 | 700-22-11410 | O-RING | 1001- | |
| 7 | 700-80-64220 | RING | 1001- | |
| 8 | 07002-12434 | O-RING | 1001- | |
| 9 | 723-20-80100 | VALVE ASS'Y,SUCTION | 1001- | |
| 10 | 07002-12034 | O-RING | 1001- |