Gasoline Engine, Engine Series CH742 Series, Gross Torque 41.2 lb-ft, Horsepower 25 hp, Shaft Orientation Horizontal, Shaft Configuration Drilled and Tapped 1.5 In. Deep, 5/8 In.-18 UNF, Shaft Diameter 1 7/16 in, Shaft Length 4 7/16 in, Start Type Electric, Maximum Speed 3,600 RPM, Muffler No, CARB Compliant CARB Compliant, Engine Brand Kohler, Engine Displacement 747.25 cc, Engine Cycle 4-Cycle, Overall Depth 17 11/16 in, Overall Depth Facing PTO 25 in, Overall H Facing PTO 17 3/8 in