| Item | Part No. | Part Name | Qty | Serial No. |
| 6271-11-1010 | HEAD ASS'Y | | 531217- |
| 6271-11-1100 | CYLINDER HEAD A.,VALVE LESS | | 531217- |
| 1 | \6\ | HEAD,CYLINDER | | 531217- |
| 2 | 6204-19-1310 | GUIDE,VALVE | | 531217- |
| 3 | 6207-11-1431 | SEAT,INTAKE VALVE (STD) | | 531217- |
| 3 | 6207-19-1431 | SEAT, 0.25MM,INTAKE VALVE (OS) | | 531217- |
| 3 | 6207-18-1431 | SEAT,INTAKE VALVE (OS) | | 531217- |
| 4 | 6208-11-1440 | SEAT,EXHAUST VALVE (STD) | | 531217- |
| 4 | 6208-19-1440 | SEAT, 0.25MM,EXHAUST VALVE (OS) | | 531217- |
| 4 | 6208-18-1440 | SEAT,EXHAUST VALVE (OS) | | 531217- |
| 5 | 07046-41008 | PLUG | | 531217- |
| 6 | 07046-41810 | PLUG | | 531217- |
| 7 | 07046-42216 | PLUG | | 531217- |
| 8 | 07046-42516 | PLUG | | 531217- |
| 9 | 02720-40104 | PLUG | | 531217- |
| 10 | 6207-41-4130 | VALVE,INTAKE | | 531217- |
| 11 | 6209-41-4210 | VALVE,EXHAUST | | 531217- |
| 12 | 6204-41-4510 | SEAT | | 531217- |
| 13 | 6204-41-4520 | COTTER | | 531217- |
| 14 | 6204-41-4410 | SPRING,VALVE | | 531217- |
| 15 | 6204-41-4541 | SEAL | | 531217- |
| 16 | 6204-41-4550 | CAP | | 531217- |
| 17 | 6204-11-1840 | GASKET | | 531217- |
| 18 | 6204-13-1610 | BOLT | | 531217- |
