Cummins ISB 6.7 L Diesel 220 hp Engine, 2011 US EPA Label, 7673.8 Engine hrs, Air Conditioner, Cruise Control, Power Windows, Allison 2500 Automatic Transmission, 12000 lb Front Axle, 21000 lb Rears, Meritor RS21145 Drive Axles, 5.57:1 Axle Ratio, 33000 lb GVWR, Aluminum Front Wheels, 295/75R22.5 Front Tires, 295/75R22.5 Rear Tires, Spring Suspension, 204 in Wheelbase, Stake Side Flatbed, In-Cab Attenuator Controller, Arrow Board, In-Cab Arrow Board Controller, Traffix Devices Scorpion Crash Attenuator