The Peterbilt 389 2014 and newer 78 inch blank sleeper extension panel is a practical and durable addition to your truck. Made of stainless steel and approximately 3 inches wide, this panel is easy to install using the supplied hardware. The blank style allows for customization to fit your specific needs. Sold as a kit, it fits most Peterbilt 389 models from 2014 and newer. Upgrade your truck with this high-quality extension panel for added functionality and style.