for 2008-2009 Buick LaCrosse 3.8L O2 Oxygen 02 Sensor Upstream + Downstream 2pcs

O2 Oxygen 02 Sensor for 2008-2009 Buick LaCrosse 3.8L Upstream + Downstream 2pcs

02 Oxygen O2 Sensor for 2008-09 Buick LaCrosse 3.8L Upstream and Downstream 2pcs

O2 Oxygen 02 Sensor for 2008-2009 Buick LaCrosse 3.8L Upstream + Downstream 2pcs

2X for 2005-2007 Buick LaCrosse 3.8L Oxygen 02 o2 Sensor Upstream Downstream

2pcs Upstream & Downstream Fits 08-2009 Buick LaCrosse 3.8L 02 Oxygen O2 Sensor

Downstream for 2008-2009 Buick Allure LaCrosse 3.8L Oxygen O2 02 Sensor

O2 Oxygen 02 Sensor For 2008-2009 Buick LaCrosse 3.8L Upstream+Downstream X2