Cummins QSB 6 Cylinder 6.7 L Ultra Low Sulfur Diesel 160 hp Engine, 2014 US EPA Label, Positive Air Shutoff, 24389 Engine hrs, Allison 5-Speed Automatic Transmission, Air Ride Cab, 11R22.5, 111 in Wheelbase, PTO, Hydraulic Lift 5th Wheel