Mack EM7 12.0 L Diesel 300 hp Engine, 1998 US EPA Label, Air Conditioner, Engine Brake, Mack Manual Transmission, 315/80R22.5 Front Tires, 11R24.5 Rear Tires, Air Lift Pusher Axle, Double Frame, Spring Suspension, 218 in Wheelbase, REX 770 9.5 cyd Mixer Unit, 3 Removable Chutes