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8946534150
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22311 Denso Lambda Sensor/Air Fuel Ratio Sensor 439000-0720 RWF-349 8946534150Genuine Denso Air Fuel Ratio Sensor 439000 0720 Ensure optimal engine performance and emissions control with the Denso Air Fuel Ratio Sensor 439000 0720 (SKU 22 311). This premium OEM quality air fuel ratio sensor is engineered by Denso to accurately monitor exhaust oxygen levels, enabling the ECU to maintain optimal air fuel ratios, reduce emissions, and maximize fuel economy for Mazda and Subaru applications. CLICK HERE TO CHECK IF THIS FITS YOUR