The Peterbilt 320 2007 Through 2017 Winterfronts are a practical solution for colder climates. Available in black, these winterfronts are recommended for use when the air temperature consistently drops below 40 degrees Fahrenheit. Each winterfront fits most Peterbilt 320 Series trucks from 2007 through 2017, but drilling is required for installation. Stay prepared and keep your truck protected with these reliable winterfronts.