Briggs & Stratton 16 HP 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. Max. RPM 3,600, Shaft Diameter in. 1, Air Cleaner Type Dual element, Oil Capacity qt. 1.5 48 oz, Cooling System Air cooled, Lubrication System Full pressure, Engine Displacement cc 479, Cylinder Bore Cast iron, Ignition System Electronic, Bolt Circle in. 5, 6 1/2, 7 3/4, Muffler Included Yes, EPA/CARB Approval California Air Resource Board No, Fuel Tank Capacity qt. 9, Bore x Stroke in. 2.68 x 2.60, Shaft Keyway in. 1/4, Bearing Type Ball, Shaft Output Horizontal, Choke Control Manual, remote, Application Compressor, pressure washer, conveyor, Throttle Control Adjustable for a constant speed operation, manual friction, remote, Engine Type Vanguard V-Twin OHV, Dimensions L x W x H in. 12 5/16 x 16 1/8 x 19, Charging System Amps 16, Shaft Rotation From PTO Shaft Side Counterclockwise, Governor System Mechanical, Mounting Bolt Pattern L x W in. 7 11/16 x 4 1/16, Rated Power HP 16, Carburetor Float, Shaft End Tapped Diameter in./Threads per inch 3/8-24, Shaft Length in. 2 29/32, Fuel Pump No, Start Type Electric, PTO Height in. 5 1/4, Fuel Tank Yes, Cylinders qty. 2, Fuel Type Gasoline.