Detroit DD15 6 Cylinder 14.8 L Diesel 560 hp Engine, 22592 Engine hrs, Air Conditioner, Power Windows, Eaton Fuller RTLO-18918B 18-Speed Manual Transmission, 18000 lb Front Axle, 51300 lb Rears, Meritor RZ-166 Drive Axles, 4.10:1 Axle Ratio, 67300 lb GVWR, Air Ride Cab, 60 in Mid Roof Sleeper Cab, Aluminum Wheels, 315/80R22.5 Front Tires, 11R24.5 Rear Tires, 2 Steerable Air Lift Pusher Axle, Air Ride Suspension, 293 in Wheelbase, PTO, Air Sliding 5th Wheel, Dual Fuel Tanks