Briggs & Stratton Intek OHV air-cooled, single cylinder, four-cycle engine is mounted on the rear of the spreader. The engine is equipped with an air cleaner, 12V battery, 12V electric starter, and electric throttle control. An in-cab control panel has engine start, shut-off, throttle, and clutch control functions. A hinged engine hood fully encloses the engine. An electric clutch engages and disengages the drive sprocket. Power is transferred to the gear case through roller chain and sprockets.