Compatibility: The Fuel Regulator Kit fit for 2003 2004 2005 2006 Ford 6.0L Powerstroke F250, F350, F450, F550
Functions of the 6.0 blue spring kit upgrade :increase fuel pressure 10-15psi ,increases fuel injector life of your Ford 6.0 Powerstroke.
Easy installation: complete kit with all accessories for installation, few minutes done.
Package including: blue spring upgrade+ fuel pressure regulator housing+4*rubber o-ring seals+ 3*orifice seals+4*screws
Replace part #: Ford part 3C3Z-9T517-AG