Mack MP7 10.8 L Ultra Low Sulfur Diesel 395 hp Engine, 2012 US EPA Label, 4455 Engine hrs, Engine Brake, Mack mDrive Automated Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, Aluminum Wheels, 385/65R22.5 Front Tires, 11R22.5 Rear Tires, Steerable Air Lift Pusher Axle, Double Frame, Hendrickson Haulmaax Rubber over Walking Beam Suspension, 208 in Wheelbase, 17 ft Long x 4 ft 5 in High Steel Body, Electric Roll Tarp