The Peterbilt 579 2013 and newer Cab/Sleeper/Extender Kit is a practical and functional addition to your truck. Made of stainless steel, this kit is designed for underbody exhaust models and includes cab skirts and 80-inch sleeper skirts with extenders. The skirts are plain with no lights and measure 2.5 inches wide. The driver's side has a block heater cutout, and the kit comes with all necessary hardware. This kit fits most Peterbilt 579 2013 and newer makes and models, making it a versatile and convenient choice for truck owners.