| Item | Part No. | Part Name | Qty | Serial No. |
| | SERIAL NO. 80199 INDICATES D21A-7. THE OTHER MACHINES ARE AS FOLLOWS. | | |
| | D20A-7 = 80089 | | |
| | D20A-7B = 80060 | | |
| | D21A-7B = 80143 | | |
| (104-15-32032) | TRANSMISSION ASS'Y | | 78604-80198 |
| | THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.F2320-51A2 TO F2320-63A2. | | |
| (104-15-32090) | TRANSMISSION ASS'Y | | 78604- |
| | THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.F2320-51A0 TO 59A0, 60A3, AND 61A2 TO 63A2. | | |
| (104-15-41010) | TRANSMISSION ASS'Y | | 80199- |
| | THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.F2320-51A2 TO F2320-63A2. | | |
| 1 | 104-15-38111 | FILLER | | 80557- |
| 1 | \3\104-15-38110 | FILLER | | 78604-80556 |
| 2 | 103-15-28131 | GASKET (K1) | | 78604- |
| 3 | 01010-81035 | BOLT | | 80557- |
| 3 | 01010-81030 | BOLT | | 78604-80556 |
| 4 | 01602-21030 | WASHER,SPRING | | 78604- |
| 5 | 104-15-28120 | GAUGE | | 78604- |
| 6 | 07000-03022 | O-RING (K1) | | 78604- |
