BRAND NEW International / Navistar DT466E – IPR Valve. IPR Valve is responsible for controlling the pressure in the high-pressure oil system which in turn operates the fuel injectors. The PCM varies ICP pressure (through adjusting the IPR duty cycle) as the primary means of controlling engine power output. The IPR (injection pressure regulator) is located on the back of the high pressure oil pump which is located under the fuel filter assembly. Common results of IPR valve failure include poor idle, stalling, and even a no-start condition. Made with pride in the USA! Replaces the following part numbers (and others). PLEASE READ. We value your patronage. If a delay occurs that is longer than would normally be considered commercially acceptable, we will attempt to contact you. Please take a moment to read it. Local auto parts stores will not pay your travel costs to return a part either. Applications We guarantee our parts to be as described by part number, picture, and verbiage. While we do our best, vehicle applications, however, simply cannot be guaranteed. In most cases, we do not generate application lists. It is the nature of the auto parts business that, in rare cases, a part will not be correct for a certain vehicle even though it “should” fit. This may occur because of errors on application lists, mid-year production changes, changes to the vehicle since it was built, the fact that a car was not built for the US market, etc. If a part does not fit your vehicle, this does not mean the part is not as described. Problems can be solved much more easily when civility is kept intact.