
Eliminate troublesome fuel pressure codes and maintain consistent rail pressure under heavy engine loads with this precision-engineered upgrade. This CNC-machined 304 stainless steel replacement valve features a durable Viton O-ring and enhanced spring pressure to prevent fuel return and keep your fuel system performing at peak efficiency.
**Fitment:** 2004.5-2010 Chevy GMC 6.6 Duramax
Precision Works Chevy Fuel Valve & Viton O-Ring Rail Relief Plug
$25.00