The Peterbilt 359, 370, 389 26 Inch Diameter Fuel Tank I Panels are a practical and durable solution for your fuel tank needs. Made of stainless steel or paintable steel, these panels are designed to fit 26-inch diameter fuel tanks. They feature an I panel design and are available with a blank panel or 4 - 4 inch light holes. Please note that lights are not included. These panels are fully enclosed and sold individually. With easy mounting, they are compatible with most Peterbilt 359, 379, and 389 models. Upgrade your fuel tank with these reliable and functional panels.