Honda GX390 OHV engine with electric start/recoil backup and low oil shutdown 3 Amp battery charging circuit (battery not included) Full cast iron pump for long service life V-style cylinder design for superior cooling Pump head made of FC35 Grade cast iron Heavy-duty NorthStar 30-gallon Horizontal Air Compressor is powered by a quality Honda gasoline engine with 3 Amp charging system. Belt-driven full cast iron 2-stage pump features V-type cylinder design for superior cooling, Low Vibration Technology (LVT) for smooth operation and floating-type Swedish steel valves for long valve life. Crankshaft has bearings on both ends for excellent support. Features a durable steel belt guard, liquid-filled pressure gauge for better accuracy and protection against pressure spikes.