Cat C15 14.6 L Diesel 490 hp Engine, 1588.4 Engine hrs, Air Conditioner, Cruise Control, Eaton Fuller RTLO018918B 18-Speed Manual Transmission, Differential Lock, 16000 lb Front Axle, 44000 lb Rears, Spicer DS462P Drive Axles, 4.33:1 Axle Ratio, Air Ride Cab, Aluminum Outer Wheels, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Air Trac Air Ride Suspension, 168 in Wheelbase, PTO, Wet Kit, Double Frame, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks