| Item | Part No. | Part Name | Qty | Serial No. |
| 257-20-21500 | ENGINE ASS'Y | 1501- | ||
| KT15521-0304-2 | CYLINDER HEAD ASS'Y | 1501- | ||
| 1 | KT15521-0311-5 | HEAD,CYLINDER | 1501- | |
| 2 | KT15521-0337-3 | PLUG | 1501- | |
| 3 | KT15221-0337-3 | PLUG | 1501- | |
| 4 | KT15261-9601-2 | PLUG | 1501- | |
| 5 | KT15221-1358-5 | GUIDE | 1501- | |
| 6 | KT15601-1356-1 | GUIDE | 1501- | |
| 7 | KT19202-0345-2 | BOLT | 1501- | |
| 8 | KT19202-0341-2 | STUD | 1501- | |
| 9 | KT19202-0351-2 | NUT | 1501- | |
| 10 | KT15521-0331-1 | GASKET | 1501- | |
| 11 | KT15521-0332-1 | SHIM | 1501- | |
| 12 | KT15221-0175-1 | HOOK | 1501- | |
| 13 | KT01123-50816 | BOLT | 1501- | |
| 14 | KT15471-9153-1 | STUD | 1501- | |
| 15 | KT02156-50080 | NUT | 1501- | |
| 16 | KT04512-50080 | WASHER,SPRING | 1501- | |
| 17 | KT33400-7525-1 | SWITCH | 1501- | |
| 18 | KT04012-50080 | WASHER | 1501- |