Honda GX690 TXA2 (GX690RHTXA2) horizontal OHV V-twin engine is 688cc and puts out 22.1 net HP. This Honda GX V-Twin has a 1-1/8″ x 3.78″ crankshaft (Tapped 7/16-20). The engine has electric start, a 12V 17-amp charging system, key switch, manual choke and throttle controls, fuel pump and oil alert system. A fuel tank and muffler are not included but options are available for purchase on our website. Honda GX690 commercial V-Twin 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. 50-State CARB Compliant. All engines purchased from us ship for free and are foam packed for added protection during transit.