Detroit Series 60 14 L Diesel 515 hp Engine, 2006 US EPA Label, 13470 Engine hrs, Air Conditioner, Power Windows, Exhaust Brake, Eaton Fuller RTLO-16918B 18-Speed Manual Transmission, Double Differential Locks, 12000 lb Front Axle, 40000 lb Rears, Meritor RT-46-160 Drive Axles, Air Ride Cab, 48 in Flat Top Sleeper Cab, Aluminum Wheels, 11R24.5, Air Lift Tag Axle, Double Frame, Airliner Air Ride Suspension, 307 in Wheelbase, PTO, Wet Kit, Air Sliding 5th Wheel, Dual Fuel Tanks