Cummins X15 6 Cylinder 15.0 L Diesel 605 hp Engine, 2019 US EPA Label, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller 18-Speed Manual Transmission, 20000 lb Front Axle, 57999 lb Rears, 78000 lb GVWR, Air Ride Cab, 20643 Engine hrs, 63 in Sleeper Cab, Dynasys Auxiliary Power Unit, Aluminum Wheels, 425/65R22.5 Front Tires, 11R24.5 Rear Tires, Dual Steering Boxes, Double Frame, Air Ride Suspension, 262 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks