For 04-05 Buick LeSabre Impala 3.8L O2 Oxygen Sensor 2pcs Upstream+Downstream

02 Oxygen O2 Sensor for 04-2005 Chevy Impala 3.8L Upstream and Downstream 2pcs

2pcs for Buick Lucerne 04-2008 3.8L 1 Upstream & 1 Downstream Oxygen Sensor O2

Oxygen O2 Sensor for 00-03 Chevy Monte Carlo 3.8L Upstream and Downstream 2pcs

2Pcs Upstream & Downstream O2 Oxygen Sensor Fits Pontiac Grand Prix 3.8L 04-2007

02 Oxygen O2 Sensor for 04-2005 Chevy Impala 3.8L Upstream and Downstream 2pcs

For 2005-2007 Buick LaCrosse 3.8L Oxygen O2 Sensor 02 Upstream+Downstream 2pcs

For 2004-05 Buick LeSabre 3.8L Upstream and Downstream O2 02 Oxygen Sensor 2pcs