The NGK direct-fit oxygen sensor for Buick LaCrosse (2011–2016) supplies continuous closed-loop feedback to the engine control unit to help maintain proper air–fuel ratio, improve fuel efficiency and reduce emissions. Based on NTK ceramic sensor technology, it incorporates a 3-stage contaminant-resistant plasma-jet and deposit-trap overcoat to protect the ceramic element from contaminants and support OE-level application development.
NGK Buick LaCrosse 2016-2011 Direct Fit Oxygen Sensor