Mack MP7 6 Cylinder Diesel Engine, Requires Diesel Exhaust Fluid, 28289 Engine hrs, Eaton Fuller 10-Speed Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000.0 lb GVWR, 70 in Mid Roof Sleeper Cab, Aluminum Outer Wheels, 11R22.5, Air Assist Front Suspension, Air Ride Suspension, 220 in Wheelbase, Dual Fuel Tanks