Cummins X15 6 Cylinder 15 L Diesel 450 hp Engine, 2019 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison Automatic Transmission, 13200 lb Front Axle, 40000 lb Rears, Paccar Drive Axles, 53200 lb GVWR, Air Ride Cab, 11R22.5 Front Tires, 11R22.5 Rear Tires, Air Ride Suspension, PTO, Wet Kit, Air Sliding 5th Wheel, Headache Rack, Dual Fuel Tanks