Photo 1 of DrCax 234-8081 Oxygen O2 Sensor Upstream Heated Air Fuel Ratio Compatible with Chevrolet 2014-2017 Silverado 1500 Sierra 1500 4.3L Suburban Yukon Tahoe 5.3L Escalade 6.2L Replace 12659516 12637679

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Photo 1 of DrCax 234-8081 Oxygen O2 Sensor Upstream Heated Air Fuel Ratio Compatible with Chevrolet 2014-2017 Silverado 1500 Sierra 1500 4.3L Suburban Yukon Tahoe 5.3L Escalade 6.2L Replace 12659516 12637679Photo 2 of DrCax 234-8081 Oxygen O2 Sensor Upstream Heated Air Fuel Ratio Compatible with Chevrolet 2014-2017 Silverado 1500 Sierra 1500 4.3L Suburban Yukon Tahoe 5.3L Escalade 6.2L Replace 12659516 12637679