Briggs Stratton 356447-0566-F1 horizontal Vanguard is 570cc and puts out 18.0 HP (gross horsepower). This Vanguard has a 1″ x 2-29/32″ crankshaft. It features a recoil starter, a 12V electric gear drive starter with a 16A alternator, a fuel tank and a muffler. Briggs Stratton Vanguard engines are designed-engineered with advanced technologies such as dual-clean air filters, full pressure lubrication and float carburetors to take on demanding jobs. Common applications include golf and turf equipment, generators, power packs and commercial mowers. Buyer protection package provides three-year commercial limited warranty. 50-State CARB Compliant. All engines purchased from us ship for free and are foam packed for added protection during transit.