PPE Viton O-Ring for PPE Fuel Race Valve 04.5-10 Duramax / 07.5-18 Cummins

Have you developed a leak around your pressure relief valve block off located on the fuel rail? If so, more than likely, the o-ring has failed and in need of replacement. This is a direct replacement Viton O-RIng to reseal your PRV block off with an easy fix.