Cummins ISX15 6 Cylinder 15.0 L Diesel 455 hp Engine • 2013 US EPA Label • Requires Diesel Exhaust Fluid • Engine Brake • Eaton Fuller FRO-16210C 10-Speed Manual Transmission • 12350 lb Front Axle • 40000 lb Rears • 3.55:1 Axle Ratio • 52350 lb GVWR • Aluminum Wheels • 11R22.5 • Hendrickson Air Ride Suspension • 214 in Wheelbase • Air Sliding 5th Wheel • Dual Fuel Tanks