| Item | Part No. | Part Name | Qty | Serial No. |
| (257-20-21500) | ENGINE ASS'Y | 1501- | ||
| 1 | KT15521-1176-1 | MANIFOLD,INLET | 1501- | |
| 2 | KT15521-1182-1 | GASKET | 1501- | |
| 3 | KT01123-50822 | BOLT | 1501- | |
| 4 | KT15321-1231-4 | MANIFOLD,EXHAUST | 1501- | |
| 5 | KT15521-1235-1 | GASKET | 1501- | |
| 6 | KT15221-9153-1 | STUD | 1501- | |
| 7 | KT02156-50080 | NUT | 1501- | |
| 8 | KT04512-50080 | WASHER,SPRING | 1501- | |
| 9 | KT01517-51025 | STUD | 1501- | |
| 10 | KT15021-1226-1 | NUT | 1501- | |
| 11 | KT04512-50100 | WASHER,SPRING | 1501- |