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The NGK direct-fit oxygen sensor for Ford Focus (2003–2011) delivers OE-style air–fuel sensing to support closed-loop ECU operation, helping maintain engine response, improve fuel economy and reduce emissions. Built with NTK ceramics expertise, it features a 3-stage contaminant-resistant ceramic element plus a plasma-jet and deposit-trap overcoat to resist element poisoning and match OEM fit and function for dependable direct-replacement service.
NGK Ford Focus 2011-2003 Direct Fit Oxygen Sensor
