| Item | Part No. | Part Name | Qty | Serial No. |
| (257-20-21500) | ENGINE ASS'Y | 1501- | ||
| KT15527-0101-2 | CASE ASS'Y | 1501- | ||
| 1 | KT15527-0111-2 | CASE,CRANK | 1501- | |
| 2 | KT15521-9602-2 | PLUG | 1501- | |
| 3 | KT15521-9603-2 | PLUG | 1501- | |
| 4 | KT15000-3439-1 | COCK,DRAIN | 1501- | |
| 5 | KT06311-75015 | PLUG | 1501- | |
| 6 | KT06311-75045 | PLUG | 1501- | |
| 7 | KT15221-0338-3 | PLUG | 1501- | |
| 8 | KT15221-0339-2 | PLUG | 1501- | |
| 9 | KT05012-00408 | PIN | 1501- | |
| 10 | KT05012-00609 | PIN | 1501- | |
| 11 | KT05012-00612 | PIN | 1501- | |
| 12 | KT05012-01018 | PIN | 1501- | |
| 13 | KT15221-3365-1 | PIN | 1501- | |
| 14 | KT15291-7316-1 | JOINT | 1501- | |
| 15 | KT15521-0231-1 | LINER,CYLINDER | 1501- | |
| 16 | KT15221-3361-1 | PLUG | 1501- | |
| 17 | KT15021-3366-1 | GASKET | 1501- | |
| 18 | KT15221-3370-1 | O-RING | 1501- | |
| 19 | KT15321-3501-2 | PUMP ASS'Y | 1501- | |
| 20 | KT15221-3515-2 | GASKET | 1501- | |
| 21 | KT01053-50648 | BOLT | 1501- | |
| 22 | KT04512-50060 | WASHER,SPRING | 1501- | |
| 23 | KT19202-3566-1 | GEAR | 1501- | |
| 24 | KT05712-00410 | KEY | 1501- | |
| 25 | KT15221-3568-1 | NUT | 1501- | |
| 26 | KT15221-3567-1 | WASHER | 1501- | |
| 27 | KT15521-3901-1 | SWITCH,OIL | 1501- |