Detroit DD13 6 Cylinder 12.8 L Diesel 410 hp Engine, 12450.6 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller FR-14210B 10-Speed Manual Transmission, Differential Lock, 12000 lb Front Axle, 35406 lb Rears, Meritor RT-40-145 Drive Axles, 2.64:1 Axle Ratio, 47406 lb GVWR, Air Ride Cab, 48 in Mid Roof Sleeper Cab, Bunk Heater, Aluminum Wheels, Air Ride Suspension, 210 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks