Diesel Engine, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 70 in Sleeper Cab, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, 224 in Wheelbase, Air Sliding 5th Wheel