The PPE Fuel Valve 113073000 for your 2004.5-2010 GM 6.6L Duramax & 2007.5-2018 Dodge 6.7L diesel 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). It eliminates low fuel rail pressure DTC codes P1093 or P0087 (low fuel rail pressure during power enrichment) that are caused by insufficient PRV spring pressure.   Features: CARB E.O. D-701-12 Solid Steel Construction Helps Maintain Fuel Pressure During Full Throttle Driving   Fitment: 2004.5-2005 GM 6.6L LLY Duramax Diesel 2006-2007 GM 6.6L LBZ Duramax Diesel 2007.5-2010 GM 6.6L LMM Duramax Diesel 2007.5-2018 Ram 6.7L Diesel