New Western Star 57X Day Cab Tractor, 450/1650 DD13 Detroit Engine, DT12 On Highway Automated mechanical transmission, Air Disc Brakes, 190" Wheelbase, Inside Cab Mounted King Pin Release, Low Profile roof Fairing, Digital Dash with 12" A Panel and 10" B Panel Cluster, Detroit Assurance 5.0 with Actice Brake Assist, Detroit Side Guard, EW4 Extended Detroit Engine Warranty for 5 Years or 500,000 miles, Truck Coverage 2 for 5 Years or 500,000 miles, Towing Warranty for 5 Years or unlimited miles, Carb Base Warranty,