The Mack GU813 2008 and Newer Cab Skirt is a practical and durable addition to your truck. Made of stainless steel, it is designed to fit most Mack GU813 2008 and newer makes and models. The removable panel allows for easy access to the battery box, while the driver's side features a block heater cutout. Sold in pairs and attaching with supplied hardware, this cab skirt is a convenient and functional choice for your truck.