Diesel Rail Fuel Valve for 2001-2004 Chevy GMC 6.6L Duramax LB7 Other Transmission & Drivetrain Feature: LED Headlight+Taillight

Feature: LED Headlight+Taillight

MLS Head Gasket Set Valves Timing Belt Kit Fit 03-05 Kia Rio 1

Superseded Part Number: 945

Replaces dealer part numbers: 515041

Diesel Rail Fuel Valve for 2001-2004 Chevy GMC 6.6L Duramax LB7 Other Transmission & Drivetrain Feature: LED Headlight+TaillightThe Fuel Rail Plug (sometimes referred to as race plug) for the Duramax Diesel Engine helps maintain fuel rail pressure during heavy engine load conditions. It keeps fuel from returning over relief the valve will open but no fuel can get out so it'll continue to keep the rail pressurized. Eliminates low fuel pressure rail diagnostic trouble codes (DTC), such as P1093 (low fuel pressure during power regiment), Helps maintain fuel pressure during full