| Item | Part No. | Part Name | Qty | Serial No. |
| (723-56-16401) | CONTROL VALVE | 20136- | ||
| (723-56-16400) | CONTROL VALVE | 20001-20135 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-31A0 TO Y1660-56A0. | ||||
| 1 | 723-50-11130 | STUD | 20001- | |
| 2 | 01643-31232 | WASHER | 20001- | |
| 3 | 01580-11210 | NUT | 20001- | |
| 4 | 01011-61085 | BOLT | 20001- | |
| 5 | 01643-51032 | WASHER | 20001- | |
| 6 | 01252-60850 | BOLT | 20001- | |
| 7 | 01252-60865 | BOLT | 20001- | |
| 8 | 708-25-19160 | BOLT | 20001- | |
| 9 | 01252-61035 | BOLT | 20001- | |
| 10 | 01252-61040 | BOLT | 20001- | |
| 11 | 01252-60630 | BOLT | 20001- | |
| 12 | 01252-60650 | BOLT | 20001- | |
| 13 | 07049-01215 | PLUG | 20001- |