Upgrade your Peterbilt 359, 370, or 389 with our 23 Inch Diameter Fuel Tank I Panels. Made of durable stainless steel, these panels are designed for 26-inch diameter fuel tanks and are available with a blank panel or 4 - 4 inch light holes. Easy to mount and fully enclosed, these panels fit most Peterbilt 359, 379, and 389 models. Whether you choose the stainless steel or paintable steel option, these panels are a practical and stylish addition to your truck, providing a sleek and functional upgrade without the need for additional lights.