This is a great part to replace your lost cap. I have a 2001 GT Vert, and I have the older style valve cover. My style valve cover takes the screw on type oil cap 32mm (1¼"). Which is LMR part number: LRS-6766D. So check your Filler size & with LMR, they have fantastic customer support.
Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory! Shop LatemodelRestoration.com for Motorcraft oil, oil filters, friction modifier, spark plugs, and many other replacement maintenance items!