... Single Cylinder, 4-Stroke,Air-Cooled, OHV Gasoline Generator HR6500 5500w SPECIFICATION: Model HR6500Type BrushVoltage Regulator AVRRated Voltage ... Air-Cooled, OHVDisplacement (CC)389Starting System Recoil Starter / Electric StarterPacking Size (L×W×H) (mm)700×535×555N ... 87Qty / 40'GP (Sets)292Optional12VDC, Oil Alert,Voltmeter,Electric Starter,Wheel+Handle,Battery 5500w Gasoline Generator HR6500 OHV