Mack MP8 6 Cylinder 12.8 L Diesel 338 hp Engine, 2009 US EPA Label, 9999 Engine hrs, Engine Brake, Allison Automatic Transmission, Differential Lock, 20000 lb Front Axle, 46000 lb Rears, 29938 kg GVWR, Air Ride Cab, Aluminum Wheels, 11R22.5, Air Ride Suspension, 188 in Wheelbase, PTO, Wet Kit, Dual Fuel Tanks