Cummins ISX15 6 Cylinder 15.0 L Diesel 450 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, 13390 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FOAM-15810S Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, Detroit DA-RT-40.0-4 Drive Axles, 2.62:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 295/75R22.5, Airliner Air Ride Suspension, 179 in Wheelbase, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks