Cat C13 12.5 L Diesel 525 hp Engine, 2004 US EPA Label, Air Conditioner, Cruise Control, Engine Brake, Manual Transmission, Differential Lock, Air Ride Cab, 48 in High Rise Sleeper Cab, Bunk Beds, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 220 in Wheelbase, Dual Fuel Tanks