Cummins B6.7 6 Cylinder 6.7 L Diesel 250 hp Engine, 2018 US EPA Label, CARB Compliant, Requires Diesel Exhaust Fluid, 3581 Engine hrs, Eaton Fuller 6-Speed Manual Transmission, Differential Lock, 8000 lb Front Axle, 19000 lb Rears, 27000 lb GVWR, 11R22.5, Spring Suspension, 187 in Wheelbase, 16 ft x 102 in Bed