2x O2 Oxygen 02 Sensor for 2003-2005 2006 GMC Sierra 1500 4.3L Downstream

Set 2 Downstream Oxygen O2 02 Sensor for 2003-2006 GMC Sierra 1500 4.3L

Oxygen O2 02 Sensor For 1999-2002 GMC Sierra 1500 4.3L 4.8L Downstream

2Pcs Up/Downstream O2 Oxygen Sensor For 2000-02 Chevy Silverado GMC Sierra 1500

4pcs Oxygen O2 02 Sensor for 99-02 GMC Sierra 1500 4.3L 4.8L Upstream Downstream

Oxygen Sensor Set of 4 Up Downstream For 2007-2013 GMC Sierra 1500 4.3L 234-4337

Downstream 02 Oxygen O2 Sensor For 08-13 Chevy Silverado GMC Sierra 1500 4.3L V6