The valve's performance is notably improved, reducing emissions and promoting cleaner air, all while maintaining the efficiency. EGR Cooler Valve 2.0HDi 9807593080. It has a certain function of liquefying the oil vapor at the position of the exhaust gas circulation valve. After the oil vapor reaches the position of the circulation valve and hit the cooling valve body, it liquefies into oil and returns to the crankcase, which can effectively avoid excessive oil consumption problem. EGR valve controls the amount of exhaust gas recirculated to the intake system and reduces the emission of nitrogen oxides in the exhaust gas., Manufacturer: mangchengsm