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The NGK direct-fit oxygen sensor supplies consistent oxygen sensing to the vehicle ECU to support closed-loop fuel control, emissions reduction and fuel economy. NTK’s ceramic element control and a three-stage contaminant-resistant overcoat with deposit-trap protection help resist poisoning and failure. Application: for 1989–1991 Mazda RX-7 models as an OE-style direct-fit sensor replacement.
NGK Mazda RX-7 1991-1989 Direct Fit Oxygen Sensor
