"Zenith ZPP416 1.6L - 42.3HP @ 2400 RPM - EPA Certified - Industrial Gasoline/LPG/Natural Gas - 4 Cylinder Power Unit Complete with: Electronic Fuel System, Radiator, Fan Guard, Radiator Hoses, Muffler/Catalyst, Air Cleaner, Front and Rear Engine Support Legs, Auto/Manual Start Control Panel with Key Switch, Safety Shutdown System, Throttle, Oil and Fuel Filters, 12 Volt Electrics, SAE 5"" Rear Housing/ SAE 7.5"" Flywheel, Owner's Manual, and Shop Tested."