Feature High Performance Corrosion-resistant stainless steel construction PTFE filter blocks efficiency-robbing contaminants Refined zirconia element improves sensor response Superior design maximizes engine performance and fuel efficiency while reducing fuel consumption and harmful emissions Ensures smog test compliance Ready to use, Direct Replacement Built to strict quality control standards 100% Factory tested Part Number/OEM Number 234-4815, 12567072, 12575658, 12584050, 12587037, 12607333 2133627, OS5461, 2344815, ES20012-11B1, 2131695, 12612430 Compatible Vehicle(for reference only) For Buick Allure V6-3.6L Downstream 2005-2010 For Buick Enclave V6-3.6L Upstream 2009-2011 For Buick LaCrosse V6-3.6L Downstream 2005-2010 For Buick LaCrosse V6-3.6L Upstream 2011 For Buick LaCrosse V6-3.0L Downstream 2010 For Buick Rendezvous V6-3.6L Downstream 2005-2006 For Cadillac ELR L4-1.4L Downstream 2014 For Cadillac SRX V6-3.0L Downstream 2010-2011 For Cadillac SRX V6-3.0L Upstream 2011 For Chevrolet Equinox V6-3.0L Downstream 2010-2012 For Chevrolet Traverse V6-3.6L Upstream 2009-2011 For Chevrolet Volt L4-1.4L Downstream 2011-2015 For GMC Acadia V6-3.6L Upstream 2009-2011 For GMC Terrain V6-3.0L Downstream 2010-2011 For GMC Terrain V6-3.0L Upstream 2011 For Saab 9-4X V6-3.0L Downstream 2011 For Saturn Outlook V6-3.6L Upstream 2009-2010 Package included 2X O2 Oxygen Sensor