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The NGK direct-fit oxygen sensor for Mazda 626 (1998–1999) supplies OE-style feedback to the engine control unit, helping maintain the correct air-fuel ratio and enabling OBDII monitoring. Built on NTK sensor know-how, the unit employs an advanced ceramic sensor element with a three-stage contaminant-resistant plasma jet and deposit-trap overcoat to protect against element poisoning and improve durability and resistance to failure in OEM applications.
NGK Mazda 626 1999-1998 Direct Fit Oxygen Sensor
