Cummins LTA10 43C 6 Cylinder 611 cid Diesel 270 hp Engine, 1989 US EPA Label, Air Conditioner, 9-Speed Manual Transmission, 12000 lb Front Axle, 21200 lb Rears, 34200.0 lb GVWR, 11R22.5 Front Tires, 11R22.5 Rear Tires, Spring Suspension, 144 in Wheelbase, Folding Attenuator, In-Cab Attenuator Controller, Arrow Board