Briggs Stratton 9P702-0045-F1 vertical 5.50 Gross Torque engine is 140cc and has a 7/8″ x 3-5/32″ crankshaft. With features like ReadyStart starting systems, mechanical governors and acoustically-engineered mufflers, Briggs Stratton 5.50 Gross Torque engines provide reliable power in tough conditions while remaining lightweight and easy-to-maneuver. Buyer protection package provides two-year limited consumer engine warranty. 50-State CARB Compliant. All engines purchased from us ship for free and are foam packed for added protection during transit.