| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 26992-25-004 | ENGINE ASS'Y,(ROBIN EY20-3D) | 52001- | |
| 26992-25-003 | ENGINE ASS'Y,(ROBIN EY20D) | 51001-52000 | ||
| 2 | 26992-42-100 | CLUTCH | 51001- | |
| 3 | 04000-00535 | KEY | 51001- | |
| 4 | 01010-80830 | BOLT | 51001- | |
| 5 | 01602-20825 | WASHER,SPRING | 51001- | |
| 6 | 26991-11-670 | WASHER | 51001- | |
| 7 | 26992-41-400 | BASE,ENGINE | 51001- | |
| 8 | 26991-21-600 | SUPPORT,ENGINE | 51001- | |
| 9 | 01580-10806 | NUT | 51001- | |
| 10 | 01602-20825 | WASHER,SPRING | 51001- | |
| 11 | 01641-20812 | WASHER | 51001- | |
| 12 | 01016-80840 | BOLT | 51001- | |
| 13 | 01580-10806 | NUT | 51001- |