For 00-03 Chevy Impala 3.8L V6 O2 Oxygen 02 Sensor 2pcs Upstream&Downstream

Upstream Downstream for Chevy Impala 3.8L 01-2003 02 O2 Oxygen Sensor 2pcs

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

Upstream Downstream for 01-2003 Chevy Impala 3.8L 02 O2 Oxygen Sensor 2pcs

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

2pcs O2 02 Oxygen Sensor Upstream&Downstream Fits 1997-2003 Buick LeSabre 3.8L

2pcs Upstream+Downstream for 02-03 Impala 3.8L Trailblazer 4.2L Oxygen Sensor O2

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