Cummins ISB 6 Cylinder 6.7 L Diesel Engine, 11018 Engine hrs, Exhaust Brake, 5-Speed Automatic Transmission, 8500 lb Front Axle, 19000 lb Rears, 27500 lb GVWR, 11R22.5, Spring Suspension, 219 in Wheelbase, 144 in Cab to Axle, 180 in Cab to End of Frame