Check the listing for details. 1X 234-4342 Upstream Left/Right Lambda O2 Oxygen Sensor for Cadillac CTS 04-05. Condition: New. Listed at 12.10 USD. Will this item fit your vehicle？ To ensure you order the correct part for your vehicle.please carefully examine our fitment tab bellow and check if the number of your previoes part is exactly the same as the number(s) staated in our listing. If you are not sure about what exactly you need-feel free to contact us every working day(except on weekend) and get professional assistance wihin 24 hours-that way you will get the right part and do not need to deal with returns-save your time! Packing Unit: 1 Position: Upstream Used in Vehicles: BUICK ALLURE 2005-2009 BUICK ENCLAVE 2008 BUICK LACROSSE 2005-2009 BUICK LUCERNE 2007-2011 BUICK RAINIER 2005 BUICK RENDEZVOUS 2006-2007 BUICK TERRAZA 2005-2007 CADILLAC CTS 2004-2015 CADILLAC DEVILLE 2005 CADILLAC ESCALADE 2003-2014 CADILLAC SEVILLE 2004.