| Item | Part No. | Part Name | Qty | Serial No. |
| (723-48-20102) | VALVE ASS'Y | 21290- | ||
| (723-48-20101) | VALVE ASS'Y | 20805-21289 | ||
| (723-48-20100) | VALVE ASS'Y | 20001-20804 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1664-01A0 TO Y1664-21A0. | ||||
| \6\ | BODY SUB ASS'Y | 21290- | ||
| \6\ | BODY SUB ASS'Y | 20805-21289 | ||
| \6\ | BODY SUB ASS'Y | 20001-20804 | ||
| 1 | 723-46-15111 | CASE | 20001- | |
| 2 | 723-46-15771 | CASE | 20805- | |
| 723-46-15770 | CASE | 20001-20804 | ||
| 3 | 723-46-15630 | PLUG | 20001- | |
| 4 | 07000-13024 | O-RING | 20001- | |
| 5 | \6\ | PISTON | 20001- | |
| 6 | \6\ | SEAL | 20001- | |
| 7 | 07430-71380 | O-RING | 20001- | |
| 8 | 702-16-53920 | O-RING | 20001- | |
| 9 | 01252-60820 | BOLT | 20001- | |
| 10 | 723-46-17350 | BOLT | 20001- |