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The NGK direct-fit oxygen sensor for Mazda 626 (2000–2002) supplies consistent closed-loop feedback to the ECU to help control air-fuel ratio and support OBDII diagnostics. Engineered with NTK ceramic expertise, the sensor uses an advanced ceramic element and a three-stage contaminant-resistant plasma jet plus deposit-trap overcoat to guard against element poisoning and enhance resistance to failure for OE-style reliability across the covered model years.
NGK Mazda 626 2002-2000 Direct Fit Oxygen Sensor
