| Item | Part No. | Part Name | Qty | Serial No. |
| 6271-11-1010 | HEAD ASSEMBLY | | 501596- |
| 6271-11-1100 | CYLINDER HEAD A., VALVE LESS | | 501596- |
| 1 | \6\ | HEAD, CYLINDER | | 501596- |
| 2 | 6204-19-1310 | GUIDE, VALVE | | 501596- |
| 3 | 6207-11-1431 | SEAT, INTAKE VALVE | | 501596- |
| 6207-19-1431 | SEAT, 0.25MM, INTAKE VALVE | | 501596- |
| 6207-18-1431 | SEAT, 0.50MM, INTAKE VALVE | | 501596- |
| 4 | 6208-11-1440 | SEAT, EXHAUST VALVE | | 501596- |
| 6208-19-1440 | SEAT, 0.25MM, EXHAUST VALVE | | 501596- |
| 6208-18-1440 | SEAT, 0.50MM, EXHAUST VALVE | | 501596- |
| 5 | 07046-41008 | PLUG | | 501596- |
| 6 | 07046-41810 | PLUG | | 501596- |
| 7 | 07046-42216 | PLUG | | 501596- |
| 8 | 07046-42516 | PLUG | | 501596- |
| 9 | 02720-40104 | PLUG | | 501596- |
| 10 | 6207-41-4130 | VALVE, INTAKE | | 501596- |
| 11 | 6209-41-4210 | VALVE, EXHAUST | | 501596- |
| 12 | 6204-41-4510 | SEAT, SPRING | | 501596- |
| 13 | 6204-41-4520 | COTTER | | 501596- |
| 14 | 6204-41-4410 | SPRING, VALVE | | 501596- |
| 15 | 6204-41-4541 | SEAL | | 501596- |
| 16 | 6204-41-4550 | CAP | | 501596- |
| 17 | 6204-11-1840 | GASKET | | 501596- |
| 18 | 6204-13-1610 | BOLT | | 501596- |
