This Motorcraft Fuel Injector Pressure Regulator is an OEM part that is a direct replacement for your 03-10 6.0L Powerstroke. The IPR Valve has Interchange Part Numbers of 5C3Z-9C968-CA, 1846057C1, and 5C3Z9C968CA. It fits only diesel vehicles and is not a universal fitment. Please note that this product has a California Prop 65 Warning.