FIt For Cummins Kneelworth Freightliner Mack 2004 2005 2006 2007 EGR Valve Car Replacement Part 4955422RX ISX 4955422 Durable structure, long service life, not easy to carbon deposit stuck. Reducing emissions and boosting engine efficiency. They improve fuel economy. This EGR valve effectively recirculates exhaust gas to lower harmful emissions, helping your vehicle pass annual inspections smoothly. Designed with high-temperature resistant internal components, it maintains consistent operation under harsh high-load driving conditions., Manufacturer: NADCFN