1pcs 234-4646 Oxygen Sensor for GMC COMPATIBLE WITH OEM: 234-4646, 12574218, 12568234, 12558143 Upstream O2 sensor for 2005-2007 Chevrolet Cobalt L4-2.0L Sensor 1 for 2004-2005 Chevy Classic 2.2L Upstream/Donstream O2 Oxygen Sensor For 1998 1999 GMC Safari V6-4.3 Please check the description or use the year/make/model drop down bar and interchangeable part numbers to confirm the compatibility before purchase