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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• 【Vehicle Fitment】Oxygen sensor fit for Chevy Silverado 1500 4.3L V6 5.3L V8 6.2L V8 2014-2017, Chevy Tahoe 5.3L V8 2015-2018, Chevy Tahoe 6.2L V8 2018, Chevy Suburban 5.3L V8 2015-2018, for GMC Sierra 1500 4.3L V6 5.3L 6.2L V8 2014-2017, GMC Yukon Yukon XL 5.3L 6.2L V8 2015-2018, for Cadillac Escalade 6.2L V8 2015-2018
• 【Replace part number】O2 Sensor Heated Upstream Downstream replace 234-4940, 2344940, 234-4974, 2344974, 21581, 21075, F00HL00421, F00HL00410, 18187, 18054, 12659516, 12657188, 12655678, 12661898, 12643708, 12666612. Please compare the original plug with our picture or video to make sure you are ordering the correct part.
• 【Product Features】Our O2 Oxygen Sensor is made of stainless steel and high temperature resistant materials, double protection with good sealing; It has a long lifespan, providing your vehicle with long-term stability and excellent performance.
• 【Work high efficiency】This o2 sensor helps detect the mixture of air and fuel accurately, it responses quickly thus can maximize raising fuel efficiency and avoid the high fuel consumption, so as to enhance the engine performance, drive more miles per gallon and save your money for each drive.
• 【Easy Installation】Our air fuel ratio Oxygen sensor is designed to OEM specifications with a plug-and-play design that can be easy installed in just a few minutes. If you have any question, please feel free to contact with us.