Photo 1 of YEHERIT 4PCS Oxygen O2 Sensor Upstream & Downstream Compatible with Chevy Silverado 1500 Suburban Tahoe, Cadillac Escalade, GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2018 Replace for 234-4940 234-4974

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Photo 1 of YEHERIT 4PCS Oxygen O2 Sensor Upstream & Downstream Compatible with Chevy Silverado 1500 Suburban Tahoe, Cadillac Escalade, GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2018 Replace for 234-4940 234-4974Photo 2 of YEHERIT 4PCS Oxygen O2 Sensor Upstream & Downstream Compatible with Chevy Silverado 1500 Suburban Tahoe, Cadillac Escalade, GMC Sierra 1500 4.3L 5.3L 6.2L 2014-2018 Replace for 234-4940 234-4974