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The NGK direct-fit oxygen sensor for Buick Rainier (2004–2005) provides constant closed-loop feedback to the engine control unit to help maintain optimal air–fuel ratio, improve fuel efficiency and reduce harmful emissions. Built with NTK ceramic sensor expertise, it features an advanced 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to resist element poisoning and support OE-level application technology.
NGK Buick Rainier 2005-2004 Direct Fit Oxygen Sensor
