Cummins X15 6 Cylinder 15 L Diesel 450 hp Engine, 2023 US EPA Label, Requires Diesel Exhaust Fluid, 140 gal Left Fuel Tank 140 gal Right Fuel Tank, Dual Air Seats, Power Locks, Diamond interior, Sleeper Cab, 4413 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Eaton Fuller EE0-17F112C 12 Speed Automated Transmission, 12350 lb Front Axle, 40000 lb Rears, 2.79:1 Axle Ratio, 52350 lb GVWR, Air Ride Cab, 73 in Sleeper Cab, Bunk Beds, Aluminum Outer Wheels, 295/75R22.5, Air Ride Suspension, 224 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks