OE Number: 213-4229,12609457, 12611165, 12570149, 1260866, 234-4668, 15284, 21546, SG1857, 8125731670, 12583804, 12594452. Fitment: for Cadillac Escalade 6.2L 2009-2014, for Chevrolet Avalanche 5.3L 2008-2013, for Chevrolet Silverado 1500 4.8L 5.3L 6.0L 2008-2013, for Chevrolet Silverado 1500 6.2L 2009-2013, for Chevrolet Suburban 1500 5.3L 2008-2014, for Chevrolet Suburban 2500 6.0L 2008-2013, for Chevrolet Tahoe 4.8L 6.2L 2008-2009, for Chevrolet Tahoe 5.3L 6.0L 2008-2014, for GMC Sierra 1500 4.8L 5.3L 6.0L 6.2L 2008-2013. Function: Air fuel ratio O2 oxygen sensor can improve engine efficiency performance and fuel economy.. Easy to install: O2 sensors are easy to install on your car. Just need to disconnect and remove the old oxygen sensor, and then install the new sensor for your car. After installation, if it can't work, some models need to delete the error code manually, otherwise the error code still exists.. Package Included: 2 x Upstream Oxygen Sensor, 2 x Downstream Oxygen Sensor.
