Shop for Aftermarket Deck Plates & Air Line Boxes for the Kenworth T300-T450. Enhance the functionality and design of your commercial truck with unique, aftermarket deck plates and air line boxes. Choose from aluminum, stainless steel, or diamond plate options for slip-resistant, durable surfaces perfect for cargo loading and easy access to air lines and electrical hookups. Air line boxes offer secure storage and come in recessed or on-top styles to fit your setup. Whether upgrading or replacing parts, this product lineup has the reliable solutions you need to enhance functionality and style. Perfect for fleet owners, operators, and truck enthusiasts!