Cummins 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 250 hp Engine, 2016 US EPA Label, Requires Diesel Exhaust Fluid, 5156 Engine hrs, Allison Automatic Transmission, 10000 lb Front Axle, 23000 lb Rears, 33000 lb GVWR, Air Ride Cab, 11R22.5, Spring Suspension, 183 in Wheelbase, PTO