1 Downstream Oxygen Sensor. 234-4242 For 2010-2014 Chevrolet Equinox 2.4L Oxygen O2 02 Sensor Up+Downstream. 2pcs Oxygen O2 Sensor 1&2 For 2014-2016 Ford Escape Fusion 2.5L L4 Up+Downstream. 2X Downstream Oxygen O2 Sensor 234-4381 For 2007-2013 Nissan Altima 2.5L 3.5L US.
