Cat C15 6 Cylinder Diesel 435 hp Engine, Engine Brake, Eaton Fuller RTLO-16918B 18-Speed Manual Transmission, Differential Lock, 14600 lb Front Axle, 46000 lb Rears, Meritor RT-46-160 Drive Axles, 4.10:1 Axle Ratio, Air Ride Cab, 58 in Flat Top Sleeper Cab, Bunk Heater, Aluminum Wheels, 11R24.5, Airliner Air Ride Suspension, 244 in Wheelbase, Wet Kit, Blower, Dual Fuel Tanks