FIt For Mazda 626 MILLENIAAuto Engine Vacuum Solenoid Control Valve EGR Valve OEM K5T44173 K005T44173 K5T44091 Optimize fuel combustion efficiency, save daily driving fuel consumption. Durable structure, long service life, not easy to carbon deposit stuck. 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