4PCS Oxygen Sensor Up+Downstream For 2013-2015 Ford Explorer Flex Taurus 3.5L V6

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NGK NTK Downstream Left O2 Oxygen Sensor for 2013-2015 Ford Taurus 3.5L V6 - ey

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Delphi Rear Left Oxygen (O2) Sensor for 2013-2019 Ford Explorer 3.5L V6 - O2 xf

Delphi Rear Right Oxygen (O2) Sensor for 2013-2015 Ford Taurus 3.5L V6 - O2 wd