Photo 1 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4940 234-4974 for Chevy Silverado 1500 GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2017, Chevrolet Suburban Tahoe GMC Yukon Cadillac Escalade 2015 2016 2017 2018

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Photo 1 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4940 234-4974 for Chevy Silverado 1500 GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2017, Chevrolet Suburban Tahoe GMC Yukon Cadillac Escalade 2015 2016 2017 2018Photo 2 of 4PCS Oxygen O2 Sensor Upstream Downstream 234-4940 234-4974 for Chevy Silverado 1500 GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2017, Chevrolet Suburban Tahoe GMC Yukon Cadillac Escalade 2015 2016 2017 2018