| Item | Part No. | Part Name | Qty | Serial No. |
| 6138-12-1030 | CYLINDER HEAD A.,WITH VALVE | 65426- | ||
| 6138-12-1100 | CYLINDER HEAD ASS'Y,VALVE LESS | 65426- | ||
| 1 | \6\ | HEAD,CYLINDER | 65426- | |
| 2 | 6136-11-1130 | SLEEVE | 65426- | |
| 3 | 6138-12-1310 | SEAT,INTAKE VALVE (STD) | 65426- | |
| 6136-19-1311 | SEAT¤ 0.25MM (OS) | 65426- | ||
| 6136-18-1311 | SEAT¤ 0.50MM (OS) | 65426- | ||
| 6136-17-1311 | SEAT¤ 0.75MM (OS) | 65426- | ||
| 6136-16-1311 | SEAT¤ 1.00MM (OS) | 65426- | ||
| 4 | 6136-12-1320 | SEAT,EXHAUST VALVE (STD) | 65426- | |
| 6136-19-1321 | SEAT¤ 0.25MM (OS) | 65426- | ||
| 6136-18-1321 | SEAT¤ 0.50MM (OS) | 65426- | ||
| 6136-17-1321 | SEAT¤ 0.75MM (OS) | 65426- | ||
| 6136-16-1321 | SEAT¤ 1.00MM (OS) | 65426- | ||
| 5 | 6136-19-1430 | GUIDE | 65426- | |
| 6 | 07046-42816 | PLUG | 65426- | |
| 7 | 07046-44016 | PLUG | 65426- | |
| 8 | 07043-50108 | PLUG | 65426- | |
| 9 | 6138-42-4110 | VALVE,INTAKE | 65426- | |
| 10 | 6136-42-4231 | VALVE,EXHAUST | 65426- | |
| 11 | 6136-42-4410 | SPRING,VALVE | 65426- | |
| 12 | 6136-42-4510 | GUIDE,SPRING | 65426- | |
| 13 | 6136-42-4520 | COTTER,VALVE | 65426- | |
| 14 | 6136-41-4530 | SEAT | 65426- | |
| 15 | 6138-19-1810 | GASKET (K1) | 65426- | |
| 16 | 6136-12-1610 | BOLT | 65426- | |
| 17 | 6138-15-1910 | HANGER,FRONT | 65426- | |
| 18 | 6136-11-1821 | GASKET (K1) | 65426- |