Detroit DD16 6 Cylinder 15.6 L Diesel Engine, Engine Coolant Heater, Engine Brake, Eaton Fuller RTLO-18918B 18-Speed Manual Transmission, Triple Differential Locks, 16000 lb Front Axle, 55000 lb Rears, Meritor RZ-69-166 Drive Axles, 4.10:1 Axle Ratio, 71000 lb GVWR, Air Ride Cab, 48 in High Rise Sleeper Cab, Aluminum Wheels, 385/65R22.5 Front Tires, 11R24.5 Rear Tires, Airliner Air Ride Suspension, 238 in Wheelbase, Wet Kit, Air Sliding 5th Wheel, Hour Meter Reads 10237