DHD 700-0004 HIGH PRESSURE FUEL RAIL PLUG(Race Plug) W/O-RING 2004-5-2010 DURAMAX 6.6L

This rail plug replaces a stock or shimmed pressure relief valve on Duramax trucks 2004.5-2010. This plug helps maintain fuel rail pressure during high engine load conditions.

This rail plug can help eliminate low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment) that are caused by insufficient relief valve spring pressure. A malfunctioning relief can redirect fuel back to the tank causing a unwanted drop in rail pressure. Low rail pressure can cause excessive some and poor performance.

Includes a Viton O-Ring needed for install.

Similar to:

PPE 113073000

Fitment:

2004.5-2010 Duramax 6.6L

2007.5-2018 Cummins 6.7L