234-4940 234-4974 O2 Oxygen Sensor Upstream & Downstream Compatible with Chevy Silverado 1500 Suburban Tahoe, Cadillac Escalade, GMC Sierra 1500, 4PCS

Additional Details from the Manufacturer

This item information is coming from the manufacturer. Some of the details may vary from the Nellis Auction listing. Please check the Quality Rating and Notes for information specific to this listing

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• Fitment: Oxygen Sensor Compatible with Chevy: Silverado 1500 4.3L 5.3L 6.2L 2014-2017, Suburban 5.3L 2015-2018, Tahoe 5.3L 2015-2018. Compatible with GMC: Sierra 1500 4.3L 5.3L 6.2L 2014-2017, Yukon XL 5.3L 6.2L 2015-2018. Compatible with Cadillac: Escalade 2015-2018
• Part Number: Upstream Oxygen Sensor OE: 234-4940, 12666612, 21581, F00HL00421, 18187, 12657188; Downstream Oxygen Sensor OE: 234-4974, 12655678, 21075, 12661898, 12643708, F00HL00410, 18054
• Built for Long-Lasting Reliability: Manufactured with high-quality materials, anti-corrosion stainless steel bodies, and heat-resistant wiring to withstand extreme exhaust temperatures and tough driving conditions
• Plug & Play Installation: Pre-coated threads and OEM-style connectors ensure an easy, hassle-free installation. Just remove the old sensors and plug in the new ones—no splicing or custom wiring needed
• Tips: Please verify the original connector before purchasing to ensure compatibility with this product. Make sure your car model is supported. If you have any questions, feel free to contact us