The perfect companion to the PPE Fuel Rail Plug is this Viton O-Ring. It is made from high quality, chemical resistant Viton rubber. This ring is better than the stock o-ring and will last longer, too!

The PPE Fuel Rail Plug (heat treated SS construction) replaces stock or a shimmed pressure relief valve. This valve helps maintain fuel rail pressure during full throttle driving by completely blocking the pressure relief port (effectively deadheading the fuel rail).

The PPE Billet Aluminium Air Bleeder Screw 513081000 is a simple upgrade that can save you a headache in the future on your GM 6.6L Duramax. Most people know that billet aluminum is a lot tougher than plastic and that toughness means fewer problems over the long haul. So, replace your fragile plastic factory air bleeder screw with the longer lasting billet aluminum PPE Air Bleeder Screw. Damage and distortion that comes naturally with a plastic unit from routine servicing will no longer be a problem because PPE’s Air Bleeder Screw features a Nitrile O-ring and billet aluminum construction. It is even yellow anodized for added visibility.

Upgrade the fuel system in your 2001-2004 GM 6.6L Duramax LB7 with the PPE 113072800 Race Fuel Valve. The PPE Race Fuel Valve (heat treated stainless steel) replaces stock or a shimmed pressure relief valve. This valve helps maintain fuel rail pressure during high engine load conditions. It eliminates potential low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment) that are caused by insufficient pressure relief valve spring pressure opening, returning fuel to the fuel tank.

PPE’s Ported Fuel Rail Fitting replaces the restrictive stock fitting. Our fitting increases fuel flow volume from the CP3 pump to the fuel rail simply by making the whole bigger. Adequate fuel flow is vital to producing maximum horsepower. With the increased flow, the Ported Fuel Rail Fitting, is recommended for both high performance and race applications. These fittings benefit both fuel rails, since the driver side fuel rail feeds the passenger side.

The PPE Billet Aluminium Air Bleeder Screw 513081100 is a simple upgrade that can save you a headache in the future on your GM 6.6L Duramax. Most people know that billet aluminum is a lot tougher than plastic and that toughness means fewer problems over the long haul. So, replace your fragile plastic factory air bleeder screw with the longer lasting billet aluminum PPE Air Bleeder Screw. Damage and distortion that comes naturally with a plastic unit from routine servicing will no longer be a problem because PPE’s Air Bleeder Screw features a Nitrile O-ring and billet aluminum construction.