The Peterbilt 388 and 389 2014 and newer one-piece cab and wide replacement panel with urea system and Dynaflex kit cutouts is a practical and efficient solution for your trucking needs. Made from stainless steel, this replacement panel is available in a one-piece design, providing durability and ease of installation. The driver side measures 4 inches long, while the passenger side measures 2-1/4 inches long, ensuring a perfect fit. This panel includes urea system and Dynaflex kit cutouts and is sold in pairs with hardware included. It is compatible with most Peterbilt 388 and 389 2014 and newer models.