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The NGK direct-fit oxygen sensor for Mazda Millenia (2001–2002) supplies OE-style air–fuel feedback to support closed-loop ECU control, aiding engine performance, fuel economy and emissions management. Drawing on NTK ceramic know-how, the sensor uses a 3-stage contaminant-resistant ceramic element with a plasma-jet and deposit-trap overcoat to reduce element poisoning and provide a reliable, OEM-matching replacement for long-term service.
NGK Mazda Millenia 2002-2001 Direct Fit Oxygen Sensor
