Honda GX630 QZB2 V-Twin Horizontal OHV Engine, is 630cc, with a total of 20.8HP (net). This Honda GX has a 1″ x 2 29/32″ crank shaft, tapped 3/8-24, with a 1/4″ keyway. This engine is electric start only with a 17 Amp charging system, control box with switch and manual controls. It also has low oil shutdown for added protection. Honda GX V-twin engines offer higher horsepower, improved adaptability, quiet operation, and greater overall fuel efficiency. Common applications for the Honda GX 630-QZB2 include pressure washers, lawn and garden equipment, tillers, cultivators, generators, construction equipment, forestry equipment, water pumps, agricultural equipment and small vehicles. A muffler is not Included with this engine but is available for sale by Equipatron. Buyer protection package provides thee-year commercial engine warranty. 50-State CARB Compliant. All engines purchased from Equipatron ship for free and are foam packed for added protection during transit.