Cat 3406E 6 Cylinder Diesel Engine, Positive Air Shutoff, Webasto Engine Coolant Heater, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 48 in Flat Top Sleeper Cab, Aluminum Wheels, 11R24.5, Air Trac Air Ride Suspension, 244 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks, Hour Meter Reads 6356