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The Sinister Diesel fuel pressure regulator Blue Spring Kit with billet spring housing is a direct-fit update for 2003–2007 Ford Powerstroke 6.0L regulator assemblies. This kit supplies a new spring and a stronger billet housing intended to replace the original spring setup, simplifying routine maintenance or a basic regulator refresh on affected Powerstroke fuel housings.
Sinister Diesel 03-07 Ford Powerstroke 6.0L Blue Spring Kit with Billet Spring Housing
