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The NGK OE-style 4-wire air/fuel sensor for Nissan Altima (2007–2009) is a direct-fit replacement that restores accurate oxygen sensing to the engine control unit, supporting correct air–fuel ratio and stable fuel trim. This OE-type four-wire sensor offers the factory electrical connection for an uncomplicated swap and reliable readings for fuel management.
NGK 2009-07 Nissan Altima OE Type 4-Wire A/F Sensor
