Gasoline Engine Engine Series Command PRO(R) Series Gross Torque 35 lb-ft Horsepower 19 hp Shaft Orientation Horizontal Shaft Configuration Drilled and Tapped 1 1/2 Deep 7/16 20 UNF Shaft Diameter 1 1/8 in Shaft Length 4 in Start Type Electric Maximum Speed 3 600 RPM Muffler No CARB Compliant CARB Compliant Engine Brand Kohler Engine Displacement 673.51 cc Engine Cycle 4-Cycle Overall Depth 17 11/16 in Overall Depth Facing PTO 19 3/16 in Overall H Facing PTO 20 11/16 in