The Peterbilt 389 2007-2010 4 Inch By 53 Inch Cab Skirts are made of durable stainless steel, ensuring long-lasting quality. These cab skirts are designed to be used with factory cowl panels and come with three amber LED lights on each skirt. The driver side panel also features a block heater cutout for added convenience. Sold in pairs, these cab skirts include all the necessary hardware, lights, and harnesses for easy installation. With a width of 4 inches and a length of 53 inches, they fit most Peterbilt 389 2007-2010 makes and models. Mounting them to the underside of the cab may require some drilling.