| Item | Part No. | Part Name | Qty | Serial No. |
| 6204-11-1100 | CYLINDER HEAD ASS'Y,VALVE LESS | | 18897- |
| 1 | \6\ | HEAD,CYLINDER | | 18897- |
| 2 | 6204-19-1310 | GUIDE,VALVE | | 18897- |
| 3 | 6204-11-1440 | SEAT,EXHAUST VALVE (STD) | | 18897- |
| 3 | 6204-19-1440 | SEAT, 0.25MM,EXHAUST VALVE (OS) | | 18897- |
| 3 | 6204-18-1440 | SEAT, 0.50MM,EXHAUST VALVE (OS) | | 18897- |
| 4 | 07046-41008 | PLUG | | 18897- |
| 5 | 07046-41810 | PLUG | | 18897- |
| 6 | 07046-42216 | PLUG | | 18897- |
| 7 | 07046-42516 | PLUG | | 18897- |
| 8 | 02720-40104 | PLUG | | 18897- |
| 9 | 6204-11-8910 | PIPE,BREATHER | | 18897- |
| 10 | 6207-41-4110 | VALVE,INTAKE | | 41356- |
| 10 | \1\6204-41-4110 | VALVE,INTAKE | | 18897-41355 |
| 11 | 6204-41-4210 | VALVE,EXHAUST | | 18897- |
| 12 | 6204-41-4510 | SEAT,SPRING | | 18897- |
| 13 | 6204-41-4520 | COTTER | | 18897- |
| 13A | 6204-41-4550 | CAP,VALVE STEM | | 38173- |
| 14 | 6204-41-4410 | SPRING,VALVE | | 18897- |
| 15 | 6204-41-4540 | SEAL,VALVE (K1) | | 60122- |
| 15 | 6204-41-4540 | SEAL,VALVE (K1) | | 18897-60121 |
| 16 | 6206-11-1930 | HANGER,FRONT | | 18897- |
| 17 | 6206-11-1920 | HANGER,REAR | | 18897- |
| 18 | 01435-01020 | BOLT | | 18897- |
| 19 | 6204-11-1812 | GASKET,HEAD (K1) | | 68095- |
| 19 | \0\6204-11-1811 | GASKET,HEAD | | 60122-68094 |
| 19 | \0\6204-11-1811 | GASKET,HEAD (K1) | | 41354-60121 |
| 19 | \0\6204-11-1810 | GASKET,HEAD | | 21601-41353 |
| 19 | \0\6204-11-1810 | GASKET,HEAD (K1) | | 18897-21600 |
| 20 | 6204-13-1610 | BOLT,HEAD | | 47470- |
| 20 | \0\6142-11-1611 | BOLT,HEAD | | 18897-47469 |
| 21 | 01643-31232 | WASHER | | 47470- |
| 22 | 6207-11-1430 | SEAT,INTAKE VALVE (STD) | | 18897- |
| 22 | 6207-19-1430 | SEAT, 0.25MM,INTAKE VALVE (OS) | | 18897- |
| 22 | 6207-18-1430 | SEAT, 0.50MM,INTAKE VALVE (OS) | | 18897- |
