This Motorcraft FA1778 replacement air filter is a genuine OEM part for your 2003 - 2007 Ford F - Series with a 6.0L Powerstroke engine. It's exactly the same filter that came with your truck from the factory and is backed by Ford's factory warranty. OEM Part Number: 4C3Z9601AA. Key features include a perfect fit, being a genuine OEM replacement, and designed for a long filter life.

Using this air filter is easy. First, make sure your engine is cool. Then, locate the air filter housing in your 2003 - 2007 Ford F - Series with a 6.0L Powerstroke engine. Open the housing, remove the old filter, and insert the new Motorcraft FA1778 filter. Make sure it fits snugly. When it comes to maintenance, check the filter regularly. If it looks dirty or clogged, it's time to replace it. Keep in mind that this is a genuine OEM part, so always use it as recommended by Ford to ensure the best performance of your vehicle.