Cummins X15 15 L Ultra Low Sulfur Diesel 565 hp Engine, 2018 US EPA Label, Requires Diesel Exhaust Fluid, 16953.7 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Allison 10-Speed Automatic Transmission, Differential Lock, 14600 lb Front Axle, 40000 lb Rears, Spicer RDH40 Drive Axles, 3.08:1 Axle Ratio, 54600 lb GVWR, Air Ride Cab, 44 in Mid Roof Sleeper Cab, Aluminum Wheels, 11R22.5, Air Trac Air Ride Suspension, 212 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks