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The NGK direct-fit oxygen sensor for Subaru Forester (1999–2004) delivers continuous closed-loop air–fuel feedback to the engine management system to help maintain performance, improve fuel efficiency and control emissions. Manufactured by NTK, it features controlled ceramic element production and a 3-stage contaminant-resistant plasma jet with deposit-trap overcoat to resist element poisoning and improve long-term reliability in OE applications.
NGK Subaru Forester 2004-1999 Direct Fit Oxygen Sensor
