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

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Delphi Rear Oxygen (O2) Sensor for 2011-2012 Ford Taurus 3.5L V6 - O2 sg

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Air Fuel Ratio Upstream O2 Oxygen Sensor For 2008-2012 Ford Taurus Flex V6-3.5L