The XDP OER Series New Fuel Rail Assembly XD600 will replace the contaminated fuel rail in your 2003-2007 Dodge 5.9L Diesel. Like all XDP OER Series products, this fuel rail is built to OEM specifications and is a direct-fit replacement. Includes new pressure relief valve and rail pressure sensor.Features: New Fuel RailDirect-Fit ReplacementNew Rail Pressure SensorNew Pressure Relief Valve