This 13 HP, 30 gallon two-stage air compressor with Kohler(r) engine is perfect for a work truck or work site location without electric power. All of our service truck air compressors feature a long-life cast iron two-stage pump. This pump is a real workhorse designed with over 17,000 hours of rated life. (based on B-10 bearing rating) The head and valve plate feature an advanced design that features Viton(r) high temperature o-rings for leak-proof sealing. Viton o-rings provide superior high pressure sealing compared to paper-type gaskets. Also, the crankshaft is fabricated of ductile iron and optimally balanced for smooth, low vibration operation.