Cummins B6.7 250 6 Cylinder 6.7 L Diesel 250 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, 9856 Engine hrs, Allison Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 25999 lb GVWR, Aluminum Wheels, 11R22.5, 258 in Wheelbase, 185 in Cab to Axle, 288 in Cab to End of Frame