The Doc's Diesel DGF401 and DGF430 Fuel Filters are designed specifically for diesel engines, offering easy installation and a manufacturer warranty of 1 year. Made with paper material and a rubber gasket, these filters come with an O-ring included for added convenience. These fuel filters are not considered vintage or performance parts, making them a reliable choice for maintaining the air and fuel delivery system in your vehicle. Ideal for car and truck owners looking for a dependable filtration solution.