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The NGK direct-fit oxygen sensor for Cadillac CTS (2008–2011) replaces the factory-installed unit and provides continuous closed-loop feedback to the engine control unit, helping control air-fuel ratio, fuel economy and emissions. It uses refined ceramic sensor technology and a 3-stage contaminant-resistant plasma jet with a deposit-trap overcoat to protect the element from poisoning and improve resistance to failure while maintaining reliable OE fitment.
NGK Cadillac CTS 2011-2008 Direct Fit Oxygen Sensor
