| Item | Part No. | Part Name | Qty | Serial No. |
| (428-15-21001) | TRANSMISSION ASS'Y | 51001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.F4320-51A0 TO F4320-68A0. | ||||
| (428-15-25001) | CONTROL VALVE ASS'Y | 51001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.F4320-51A0 TO F4320-55A0. | ||||
| 1 | 428-15-15160 | SEAT | 50001- | |
| 2 | 428-15-15940 | GASKET (K2) | 50001- | |
| 3 | 428-15-15840 | PLUG | 50001- | |
| 428-15-00260 | BODY ASS'Y | 50001- | ||
| 4 | \6\ | BODY | 50001- | |
| 5 | 07042-80108 | PLUG | 50001- | |
| 6 | 07000-73045 | O-RING (K2) | 50001- | |
| 7 | 428-15-15820 | COVER | 50001- | |
| 8 | 428-15-15930 | GASKET (K2) | 50001- | |
| 9 | 01010-80825 | BOLT | 50001- | |
| 10 | 01643-30823 | WASHER | 50001- | |
| 11 | 428-15-25270 | VALVE | 51001- | |
| 12 | 711-56-36620 | VALVE | 51001- | |
| 13 | 427-15-15490 | VALVE | 51001- | |
| 14 | 711-56-36610 | SPRING | 51001- | |
| 15 | 428-15-26110 | SPRING | 51001- | |
| 16 | 428-15-26120 | SPRING | 51001- | |
| 17 | 428-15-26470 | SHIM¤ 0.5MM (K2) | 51001- | |
| 18 | 428-15-25280 | SPACER | 51001- | |
| 19 | 01010-81070 | BOLT | 50001- | |
| 20 | 01643-31032 | WASHER | 50001- | |
| 21 | 01011-81025 | BOLT | 50001- | |
| 22 | 01643-31032 | WASHER | 50001- | |
| 23 | 01010-81040 | BOLT | 50001- | |
| 24 | 01643-31032 | WASHER | 50001- | |
| 25 | 700-85-11111 | BOLT | 50001- | |
| 26 | 01010-81085 | BOLT | 50001- | |
| 27 | 01643-31032 | WASHER | 50001- | |
| 28 | 01011-81065 | BOLT | 50001- | |
| 29 | 01643-31032 | WASHER | 50001- | |
| 30 | (428-15-17100) | VALVE ASS'Y,(SEE FIG. F4320-55A0) | 50001- | |
| 31 | 01011-81050 | BOLT | 50001- | |
| 32 | 01011-81075 | BOLT | 50001- | |
| 33 | 113-15-21241 | BOLT | 50001- | |
| 34 | 01643-31032 | WASHER | 50001- | |
| 35 | 01643-31032 | WASHER | 50001- | |
| 36 | 01010-81040 | BOLT | 50001- | |
| 37 | 01643-31032 | WASHER | 50001- |