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NGK direct-fit oxygen sensor for Infiniti FX35 (2003–2004) replaces the factory sensor to restore accurate closed-loop air–fuel monitoring. Built with NTK OE sensor expertise, it supplies constant feedback to the ECU to help control air‑fuel ratio, improve fuel economy and lower emissions. The advanced ceramic element uses a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat for added protection.
NGK Infiniti FX35 2004-2003 Direct Fit Oxygen Sensor
