| 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. | | |
| 104-15-00550 | HOUSING ASS'Y,2ND | | 78604- |
| 1 | \6\ | HOUSING | | 78604- |
| 2 | 113-15-25490 | PLUG | | 78604- |
| 3 | 113-15-29250 | RING,SEAL (K1) | | 78604- |
| 4 | 113-15-22771 | PISTON,2ND | | 78604- |
| 5 | 113-15-29261 | RING,SEAL (K1) | | 78604- |
| 6 | 103-15-31250 | BOLT | | 78604- |
| 7 | 362-15-11270 | PIN | | 78604- |
| 8 | 104-15-32310 | CARRIER | | 78604- |
| 9 | 104-15-32420 | GEAR | | 78604- |
| 10 | 104-15-32560 | WASHER | | 78604- |
| 11 | 104-15-39420 | BEARING,NEEDLE | | 78604- |
| 12 | 104-15-32510 | SHAFT | | 78604- |
| 13 | 113-15-29560 | PIN,SPRING | | 78604- |
| 14 | 104-15-32270 | HUB | | 78604- |
