6 Cylinder Diesel Engine, Requires Diesel Exhaust Fluid, 2707 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Allison 3000HS 6-Speed Automatic Transmission, 12000 lb Front Axle, 21000 lb Rears, Dana S21-170 Drive Axles, 5.32:1 Axle Ratio, 33000 lb GVWR, 11R22.5, Air Trac Air Ride Suspension, 156 in Wheelbase