"Briggs & Stratton 479cc Vanguard V-Twin OHV Horizontal Engine. V-Twin 90 overhead valve design runs cooler, cleaner and more efficiently. More HP output with less displacement and less carbon build-up. Longer valve life and improved fuel economy. Air Cleaner Type Dual element, Bore x Stroke in. 2.68 x 2.60, Carburetor Float, Charging System Amps 16, Choke Control Manual, remote, Bearing Type Ball, Bolt Circle in. 5, 6 1/2, 7 3/4, Cylinders qty. 2, Dimensions L x W x H in. 12 5/16 x 16 1/8 x 19, Engine Displacement cc 479, Engine Type Vanguard V-Twin OHV, Cooling System Air cooled, Cylinder Bore Cast iron, Fuel Tank Yes, Fuel Tank Capacity qt. 9, Fuel Type Gasoline, Governor System Mechanical, EPA/CARB Approval California Air Resource Board No, Fuel Pump No, Max. RPM 3,600, Mounting Bolt Pattern L x W in. 7 11/16 x 4 1/16, Muffler Included Yes, Oil Capacity qt. 1.5 48 oz, Ignition System Electronic, Lubrication System Full pressure, Shaft Diameter in. 1, Shaft End Tapped Diameter in./Threads per inch 3/8-24, Shaft Keyway in. 1/4, Shaft Length in. 2 29/32, PTO Height in. 5 1/4, Throttle Control Adjustable for a constant speed operation, manual friction, remote, Shaft Output Horizontal, Shaft Rotation From PTO Shaft Side Counterclockwise, Application Compressor, pressure washer, conveyor, Start Type Electric/recoil backup. Dura Bore cast iron cylinder sleeve for extended life Float carburetor for consistent easy starting Maintenance-free Magnetron electronic ignition for quick, dependable starts Recoil backup for emergency hand starts Dual Clean air cleaner pleated paper filter with a foam pre-cleaner ensures maximum protection for extended engine life Full-pressure lubrication with spin-on oil filter assures controlled lubrication for extended component life Overhead valve design OHV for cooler operation and longer valve life 12V gear drive starter and 16 Amp DC alternator with starter panel assembly"