Piston Std / Honda 13101-ZH8-010Pack Size:1Honda 13101-ZH8-010, Honda 13101-ZH8-000NHC 266-8708, Rotary 11288Honda GX160 and GXV160 Honda code 3683398/6837512, Cylinder Bore Size: 68mm, Ethanol: Not compatible with greater than 10% ethanol fuel