The Peterbilt 579 2013 through 2017 Winterfronts are a practical solution for maintaining optimal engine temperature during cold weather. Available in white, these winterfronts are recommended for use when air temperatures consistently drop below 40 degrees Fahrenheit. Each winterfront is sold individually and fits most Peterbilt 579 Series trucks from 2013 through 2017, although drilling is required for installation. Keep your engine running smoothly and efficiently in cold weather with these durable and reliable winterfronts.