Cummins ISX15 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, 12995 Engine hrs, Engine Brake, Eaton Fuller Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, 52350.0 lb GVWR, Air Ride Cab, 295/75R22.5, Air Ride Suspension, 171 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks