| Item | Part No. | Part Name | Qty | Serial No. |
| (723-47-23600) | VALVE ASS'Y | B31800- | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1663-01A0 TO Y1663-21A0. | ||||
| 723-46-00750 | COVER ASS'Y | B31800- | ||
| 1 | \6\ | COVER,(A) | B31800- | |
| 2 | \6\ | PLUG | B31800- | |
| 3 | \6\ | PLUG | B31800- | |
| 723-46-00790 | COVER ASS'Y | B31800- | ||
| 4 | \6\ | COVER,(B) | B31800- | |
| 5 | \6\ | PLUG | B31800- | |
| 6 | 708-8E-16250 | PLUG | B31800- | |
| 7 | 07002-11823 | O-RING | B31800- | |
| 8 | 708-8H-11530 | PLUG | B31800- | |
| 9 | 07002-11423 | O-RING | B31800- | |
| 723-46-17600 | PLUG ASS'Y | B31800- | ||
| 10 | 723-46-17610 | SLEEVE | B31800- | |
| 11 | 723-46-17640 | PLUG | B31800- | |
| 12 | 702-21-55760 | FILTER | B31800- | |
| 13 | 07002-11423 | O-RING | B31800- | |
| 14 | 07000-11007 | O-RING | B31800- | |
| 15 | 07001-01007 | RING,BACK-UP | B31800- | |
| 16 | 708-8E-16160 | PLUG | B31800- | |
| 17 | 07002-11023 | O-RING | B31800- | |
| 18 | 723-40-82220 | FILTER | B31800- | |
| 19 | 723-46-17550 | PLUG | B31800- | |
| 20 | 723-46-15190 | VALVE | B31800- | |
| 21 | 723-46-14140 | SPRING | B31800- | |
| 22 | 708-8E-16160 | PLUG | B31800- | |
| 23 | 07002-11023 | O-RING | B31800- | |
| 24 | 01011-61455 | BOLT | B31800- | |
| 25 | 01643-31445 | WASHER | B31800- | |
| 26 | 01010-61490 | BOLT | B31800- |