Cummins ISX15 6 Cylinder 15 L Ultra Low Sulfur Diesel 450 hp Engine, 2015 US EPA Label, Requires Diesel Exhaust Fluid, 23807 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FRO-16210C Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Carrier ComfortPro Auxiliary Power Unit, Aluminum Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 240 in Wheelbase, Air Sliding 5th Wheel