Honda GX270 QAhorizontal OHV engine is 270cc and puts out 8.5 net HP. This Honda GX has a 1" x 3-31/64" crankshaft with a 1/4" keyway (Tapped 7/16-20). The engine has a recoil starter, a standard muffler with spark arrestor and deflector plus an oil alert system. Honda GX270 commercial engines deliver economical and quiet operation without sacrificing superior performance and reliable power. Common applications for this engine include water pumps, small vehicles, commercial lawn and garden equipment, generators and more. Buyer protection package provides three-year commercial engine warranty.