Sometimes referred to as O2 or Lambda Sensor measures the amount or proportion of oxygen mixed in the fuel of your vehicle which is essential in the proper operation of your catalytic converter. The vehicle then determines whether it is necessary to adjust for it to perform properly. A lot of people buy the wrong oxygen sensor because of the wrong plug and length of the sensor. Please make sure to check your old sensor to see if the plug and pins are alike or better than the whole sensor itself. Compatible with the following vehicles: 2007-2014 GX460 2003-2004 GX470 2005-2007 LX470 2008-2013 LX570 2005-2012 4Runner 4.0L 2003-2004 4Runner 4.7L 2005-2012 Avalon 2013-2014 Avalon 3.5L 2007-2009 Camry 2.4L 2010-2014 Camry 3.5L 2007-2012 FJ Cruiser 2009 Highlander 2.7L 2005-2013 Land Cruiser 2005-2009, 2013 Sequoia 2010-2012, 2014-2018 Sequoia 5.7L 2006-2008 Solara 2.4L 2012 Tacoma 2.7L 2005-2011 Tacoma 4.0L 2005-2009, 2011-2012 Tundra 2010 Tundra 4.6L 2010, 2013-2015 Tundra 5.7L 2009-2014 Venza 3.5L Replaces part numbers: 234-4260, 24594, 24453, 250-24360, ES20326, ES20118, 80051168039, 2131483, 5S10053, SU11506 This is a compatible replacement part manufactured by AA Ignition. This oxygen sensor is NOT a genuine OEM part. Vehicle makes and their associated vehicle models and part numbers are used in this listing only to identify the vehicles this oxygen sensor fits.