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The NGK direct-fit oxygen sensor for Buick Rainier (2004–2005) supplies continuous closed-loop feedback to the engine control unit to help maintain an optimal air–fuel ratio, improve fuel economy and reduce harmful emissions. Based on NTK ceramic sensor development, it uses an advanced ceramic element with a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to resist element poisoning and align with OE application technology.
NGK Buick Rainier 2005-2004 Direct Fit Oxygen Sensor
