BlackPath - Ford Diesel Fuel or Oil Cap Super Duty F-250 + F-350 + F-450 + F-550 + E-350 + E-450 + Excursion 6.0 & 6.4 Liter Power Stroke Diesel Filter Seal (Silver) T6 Billet Fits 2003-2010 Ford Super Duty F-Series & E-Series and 2003-2005 Ford Excursion with 6.0L & 6.4L Power Stroke Diesel Engines Perfectly seals the factory plastic cap, reducing the potential for leaks and dressing up the engine bay Can be interchanged as an Oil Filter Cap, Upper Fuel Filter Cap or Lower Fuel Filter Cap (See Product Specifications) Includes 1x Solid Oil / Fuel Filter Cap with Hardware and Installation Notes CNC Machined from T6 Billet Aluminum for a perfect fitment and Anodized surface for a Corrosion & Oxidation Resistant finish 1x Fuel Filter Cap Hardware w/ Installation Notes 1x Drive Your Way Keychain Tag