Cummins ISX 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2011 US EPA Label, Requires Diesel Exhaust Fluid, 25170.4 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-16210C 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, Meritor RT-40-145 Drive Axles, 3.42:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 60 in High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Outer Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Airliner Air Ride Suspension, 224 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks