
Shaft 3/4" diameter, 2-3/8" long, end tapped with 5/16"- 24 UNF; Keyway 3/16" Small gas engine motor built-in 4 stroke, air cooled with recoil start 7HP 3600RPM, OHV engine, 0.9 gallon fuel tan; It can be applied to log splitter, pressure washer, rotor tiller, tiller cultivator, lawn equipment, water pump, go-kart Equipped with forged crankshafts and cast iron cylinder liners to superior performance and longer service life All enignes EPA compliant are functionally tested before leaving the factory to guarantee quality; Backed by 1-year limited under normal use and FREE lifetime technical guidance from experts.