| Item | Part No. | Part Name | Qty | Serial No. |
| 6731-11-1270 | CYLINDER HEAD A. | 21382646- | ||
| 6736-11-1110 | CYLINDER HEAD A. | 21180000-21382645 | ||
| 1 | \6\ | HEAD,CYLINDER | 21180000- | |
| 2 | 6736-11-1150 | PLUG,EXPANSION | 21180000- | |
| 3 | 6732-11-1930 | PLUG | 21180000- | |
| 4 | 6732-11-1910 | PLUG | 21180000- | |
| 6736-41-4110 | INTAKE VALVE ASS'Y | 21180000- | ||
| 5 | 6736-41-4520 | COTTER,VALVE | 21180000- | |
| 6 | \6\ | VALVE,INTAKE | 21180000- | |
| 6736-41-4210 | EXHAUST VALVE ASS'Y | 21180000- | ||
| 7 | 6732-41-4520 | COTTER,VALVE | 21180000- | |
| 8 | \6\ | VALVE,EXHAUST | 21180000- | |
| 9 | 6732-41-4410 | SPRING,VALVE | 21180000- | |
| 10 | 6732-41-4510 | RETAINER,SPRING | 21180000- | |
| 11 | 6732-41-4530 | SEAL,EXHAUST | 21180000- | |
| 12 | 6732-41-4540 | SEAL,INTAKE | 21180000- | |
| 13 | 6732-11-1920 | PLUG | 21180000- | |
| 14 | 6732-11-1610 | BOLT | 21180000- | |
| 15 | 6732-11-1620 | BOLT | 21180000- | |
| 16 | 6735-11-1811 | GASKET (STD) | 21180000- | |
| 6735-19-1810 | GASKET¤ 0.25MM (OS) | 21180000- | ||
| 6735-18-1810 | GASKET¤ 0.50MM (OS) | 21180000- | ||
| SERVICE PARTS | ||||
| 17 | 6736-19-1440 | SEAT,EXHAUST | 21180000- | |
| 18 | 6736-19-1430 | SEAT,INTAKE | 21180000- | |
| 19 | 6736-19-1310 | GUIDE¤ 60.50MM,INTAKE | 21180000- | |
| 20 | 6736-19-1410 | GUIDE¤ 51.75MM,EXHAUST | 21180000- | |
| 21 | 6736-18-1310 | GUIDE,EXHAUST | 21180000- |
