2pcs for 2002-2003 GMC Envoy XL 4.2L Upstream Downstream Oxygen Sensor O2 02

Mass Air Flow Sensor for Chevrolet Cobalt Trailblazer Cadillac GMC 2005-2009

2pcs for 2002-2003 GMC Envoy XL 4.2L Upstream Downstream Oxygen Sensor O2 02

✔2pcs for 2002-2003 GMC Envoy XL 4.2L Upstream Downstream Oxygen Sensor O2 02

2pcs for 2002-2003 GMC Envoy XL 4.2L Upstream Downstream Oxygen Sensor O2 02

2pcs Upstream+Downstream for 2002-2003 GMC Envoy 4.2L Oxygen o2 02 Sensor

For 2002-2003 GMC Envoy XL 4.2L O2 02 Oxygen Sensor Heated 2pcs Upper Downstream

For 2002-03 GMC Envoy Envoy XL 4.2L Oxygen O2 Sensor 02 Upstream+Downstream 2pcs