The Mack CHU and CHX 2008 and newer heat shield cap is a practical and durable solution for replacing the black OE cover that hides the diesel particulate filter. Made of stainless steel, this cap is available in a 24.88-inch width and 26.08-inch height, with a bulldog cutout for added style. It attaches easily using existing hardware and fits most Mack CHU and CHX 2008 and newer makes and models. This heat shield cap is sold individually and provides a reliable and long-lasting solution for protecting your diesel particulate filter.