Paccar MX-13 6 Cylinder 12.9 L Ultra Low Sulfur Diesel Engine, 2014 US EPA Label, Requires Diesel Exhaust Fluid, 16683 Engine hrs, Engine Brake, Eaton Fuller 8LL Manual Transmission, 12000 lb Front Axle, 39000 lb Rears, 51000 lb GVWR, Air Ride Cab, 68 in Mid Roof Sleeper Cab, Aluminum Wheels, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, 268 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks