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Delphi ES10921-12B1 Lambda / Oxygen / O2 SensorDelphi oxygen sensors are built with a need for speed. Planar sensors have the fastest activation time which is the best in the industry and twice as fast as their nearest competitor’s. Delphi planar technology covers older, conical design sensors Smart design consolidates SKUs without using long wires Patented protective sensor coating helps prevent contamination Validated for all fuel types, including ethanol blends like E85 OE tested to 150,000 miles, plus 2,000 hours severe thermal testingIf you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. Alternatively please use the cross reference table above.