| Item | Part No. | Part Name | Qty | Serial No. |
| (723-28-50600) | CONTROL VALVE | 6501- | ||
| (723-28-50201) | CONTROL VALVE | 4001-6500 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-25A0. | ||||
| (723-21-05300) | VALVE SUB ASS'Y | 6501- | ||
| (723-21-04200) | VALVE SUB ASS'Y | 4001-6500 | ||
| 1 | \6\ | VALVE | 4001- | |
| 2 | \6\ | VALVE | 6501- | |
| 2 | \6\ | VALVE | 4001-6500 | |
| 3 | \6\ | PISTON | 4001- | |
| 4 | 723-26-14140 | SPRING | 4001- | |
| 5 | 723-26-15230 | PLUG | 4001- | |
| 6 | 07002-12434 | O-RING | 4001- | |
| 7 | 723-26-15220 | PLUG | 4001- | |
| 8 | 07002-11223 | O-RING | 4001- | |
| 9 | \6\ | VALVE | 4001- | |
| 10 | 723-26-14150 | SPRING | 4001- | |
| 11 | 723-20-80100 | VALVE ASS'Y,SUCTION | 4001- | |
| 12 | 07002-12034 | O-RING | 4001- |