Cummins X15 6 Cylinder 550 hp Engine • Requires AdBlue • 10987 Engine hrs • Engine Brake • Eaton Fuller 18-Speed Manual Transmission • Double Differential Locks • 46000 lb Rears • SleeperAir IX Diesel Sleeper Air Conditioner • 385/65R22.5 Front Tires • 11R22.5 Rear Tires • 8-Bag Air Ride Suspension • 5500 mm Wheelbase • Air Sliding 5th Wheel • GVM 28.1 t • GCM 97 t • Fuel Haul Kit