The Peterbilt 579 Long Hood 2013 And Newer Cab And 63 Inch Sleeper And Extension Kit is a practical and durable solution for upgrading your truck. Made of stainless steel, this kit includes cab panels with and without block heater holes, as well as 63-inch sleeper and extension panels. With a width of 2.5 inches, this kit fits most Peterbilt 579 Long Hood models and is blank with a block heater hole. Upgrade your truck with this high-quality, easy-to-install kit for a sleek and functional look.