6.0L Diesel Fuel Pressure Regulator Kit

The Ford Motorcraft 3C3Z-9T517-AG is an OEM fuel pressure regulator kit specifically designed to upgrade the fuel system in Ford 6.0L diesel engines. This kit features an upgraded blue spring, which is crucial for maintaining optimal fuel pressure within the fuel rails. Proper fuel pressure is essential for maximizing both performance and the overall reliability of the engine. This comprehensive kit includes all the necessary washers and hardware required for a complete installation. It is a direct replacement part manufactured by Ford, ensuring OEM quality and fitment. The upgrade helps to ensure consistent fuel pressure whether the vehicle is idling, cruising, or under heavy acceleration (wide-open throttle). While specific fitment details for E-Series (Vans) and F-Series (Trucks) may vary slightly, this kit is generally compatible with Ford 6.0L Powerstroke engines from 2003-2007. It is also noted to replace several previous Ford part numbers, including 3C3Z-9T517AA, 3C3Z-9T517AD, and 3C3Z-9T517AE.