Oxygen O2 Sensor 234-4668 & 234-4256 Compatible with Chevy Avalanche, Silverado1500/2500,Compatible with GMC Sierra,Yukon, Upstream and Downstream Replacement Oxygen Sensor for ESV EXT,4PCS

Replace OE Numbers: 234- 4668: 12569429, 12573005, 12573167, 12576131, 12583290, 12583804, 12584925, 12587785, 12590790, 12594452, 12596558, 12597878, 12607410, 12609001, 12611127, 8125731670 234-4256213-4229234-4407234-4651213-422912609457, 12569429, 125730051257316712611165, 9245778925024736;
Compatible Vehicle Model: Oxygen sensor Compatible with Chevy 2008-2009 Avalanche, 2008-2012 Silverado 1500/2500, Suburban, 2008-200 Tahoe; Compatible with Cadillac 2009-2013 Escalade ESV EXT; Compatible with GMC 2008-2012 Sierra 1500, 2008-2009
Yukon V8Vehicle Specific: Check fitment/pictures/product details page information in the listing for compatibility;
High Performance: The SYKRSS oxygen sensor meets OE standards, and Front/Back/Upstream/Downstream compatibility; is made of stainless steel and high temperature resistant materials and is installed in the vehicle exhaust pipe to accurately detect air mixture and engine combustion conditions, optimizing engine performance and saving fuel consumption;
Installation Instructions: To avoid burns, please wait for the vehicle exhaust pipe to completely cool down before operating; During the disassembly process, please be very careful not to damage the exhaust pipe and oxygen sensor threaded parts, and use professional disassembly tools;
Professional Services: 234- 4668:45 CM wire harness and 40CM head; 234- 4256:47. 5CM wire harness and 44CM head; Please check the length of the plug and sensor before purchasing to avoid purchasing an unsui