TRQ O2 Oxygen Sensor Set 2 Downstream OSA60392 and 2 Upstream OSA60394 Compatible with 2014-2019 Chevrolet Silverado GMC Sierra 2016-2020 Express/Savana 2015 Tahoe/Yukon/Suburban/Escalade

4 Piece O2 Oxygen Sensor SetKit Includes(2) Downstream O2 Oxygen Sensors(2) Upstream O2 Oxygen SensorsFitmentCadillac Escalade 2015 - V8 6.2L Upstream & DownstreamCadillac Escalade ESV 2015 - V8 6.2L Upstream & DownstreamChevrolet Express 2500 Van 2016 - V8 6.0L CNG Upstream & Downstream 2016-17 - V8 4.8L Upstream & Downstream 2016-17 - V8 6.0L Flex Fuel Upstream & Downstream 2018-19 - V6 4.3L Upstream & Downstream 2018-20 - V8 6.0L Upstream & DownstreamChevrolet Express 3500 Van 2016 - V8 4.8L with Oval Plug Upstream & Downstream 2016-20 - V8 6.0L Upstream & Downstream 2017 - V8 4.8L Upstream & Downstream 2018-20 - V6 4.3L Upstream & DownstreamChevrolet Express 4500 2017 - V8 6.0L Flex Fuel Upstream & Downstream 2019 - V8 6.0L Flex Fuel Upstream & Downstream 2019 - V8 6.0L Gas Engine Upstream & DownstreamChevrolet Silverado 1500 2014 - V8 5.3L Flex Fuel Upstream & Downstream 2014-19 - V6 4.3L Upstream & Downstream 2014-19 - V8 6.2L Upstream & Downstream 2015-16 - V8 5.3L Upstream & Downstream 2019 - Custom Trail Boss V8 5.3L Upstream & Downstream 2019 - Custom V8 5.3L Upstream & Downstream 2019 - SSV V8 5.3L Upstream & Downstream 2019 - WT V8 5.3L Upstream & DownstreamChevrolet Suburban 2015 - V8 5.3L Upstream & DownstreamChevrolet Tahoe 2015 - V8 5.3L Upstream & DownstreamGMC Savana 2500 Van 2016 - V8 6.0L CNG Upstream & Downstream 2016-17 - V8 4.8L Upstream & Downstream 2016-17 - V8 6.0L Flex Fuel Upstream & Downstream 2018-20 - V6 4.3L Upstream & Downstream 2018-20 - V8 6.0L Upstream & DownstreamGMC Savana 3500 Van 2016 - V8 4.8L with Oval Plug Upstream & Downstream 2016-17 - V8 6.0L Upstream & Downstream 2017 - V8 4.8L Upstream & Downstream 2018 - V8 6.0L CNG Engine VIN B Upstream & Downstream 2018 - V8 6.0L Flex Fuel Engine VIN B Upstream & Downstream 2018 - V8 6.0L Flex Fuel Engine VIN G Upstream & Downstream 2018 - V8 6.0L Gas Engine Engine VIN B Upstream & Downstream 2018-20 - V6 4.3L Upstream & Downstream 2019 - V8 6.0L Upstream & Downstream 2020 - V8 6.0L CNG Engine VIN B Upstream & Downstream 2020 - V8 6.0L Flex Fuel Engine VIN B Upstream & Downstream 2020 - V8 6.0L Flex Fuel Engine VIN G Upstream & Downstream 2020 - V8 6.0L Gas Engine Engine VIN B Upstream & DownstreamGMC Savana 4500 2019 - V8 6.0L Upstream & DownstreamGMC Sierra 1500 2014-16 - V8 5.3L Upstream & Downstream 2014-19 - V6 4.3L Upstream & Downstream 2014-19 - V8 6.2L Upstream & Downstream 2019 - AT4 V8 5.3L Gas Engine Upstream & Downstream 2019 - Base Model V8 5.3L Flex Fuel Upstream & Downstream 2019 - Denali V8 5.3L Gas Engine Upstream & Downstream 2019 - Elevation V8 5.3L Gas Engine Upstream & Downstream 2019 - SLE V8 5.3L Gas Engine Upstream & Downstream 2019 - SLT V8 5.3L Gas Engine Upstream & DownstreamGMC Yukon 2015 - V8 5.3L Upstream & Downstream 2015 - V8 6.2L Flex Fuel Upstream & DownstreamGMC Yukon XL 2015 - V8 5.3L Upstream & Downstream 2015 - V8 6.2L Upstream & DownstreamProduct AttributesQuantity: 4 PieceProduct Features Application Specific Design: No modifications and pre-calibrated Isotatic-pressed and plasma-sprayed for extended service life Double-Layered 310S Stainless Steel: Additional protection from moisture and debris Restored Engine Performance: Improved fuel economy and lower emissionsItem DetailsTRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for improved strength and durability, and plasma-sprayed to improve sensitivity and prolong the service life of the sensors. Oxygen sensors wear out over time and should be replaced every 60,000 miles to prevent poor engine performance. TRQ recommends replacing the oxygen sensors in sets to optimize fuel economy and reduce overall emissions. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.Reference Numbers126437081265567812657188126595161266189812666612234-4762234-4940234-4974250-241132250-241162

• Kit Includes: 2 Downstream O2 Oxygen Sensors; 2 Upstream O2 Oxygen Sensors
• Reference Numbers: 12643708; 12655678; 12657188; 12659516; 12661898; 12666612; 234-4762; 234-4940; 234-4974; 250-241132; 250-241162
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• TRUST & COMPATIBILITY: For over 25 years, TRQ has been the premium choice for direct-fit replacement parts. Confirm fitment with the Amazon Garage "confirmed fit" feature and review our full compatibility chart below before purchase.
• EASE OF INSTALLATION: Save time and effort with pre-assembled components designed as direct replacements for the original equipment, ensuring precise fit and eliminating the need for modifications.