Cummins 6 Cylinder Diesel Engine, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller RTLO-18918B 18-Speed Manual Transmission, Air Ride Cab, 52 in Flat Top Sleeper Cab, Aluminum Outer Wheels, 295/75R22.5, Double Frame, Spring Suspension, 247 in Wheelbase, Wet Kit, Dual Fuel Tanks