[INNOVATIVE TECHNOLOGY] - Every Bosch Oxygen Sensor benefits from the technological and manufacturing experience gained from decades of production since first inventing the Oxygen Sensor in the late 1960's, ensuring long-lasting performance [FACTORY TESTED] - Each sensor meets Bosch's rigorous standards for quality and performance and undergoes a fully functional quality test before leaving the factory to ensure operation within design specifications [STAINLESS STEEL BODY] - Stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions - ensuring longer sensor service life [FAST ACTING HEATER] - Fast-acting heater optimizes sensor operation on Planar and 3, 4, and 5 wire Thimble type sensors allowing the oxygen sensor to reach its operating temperature quicker - within seconds - for optimum performance [READY TO INSTALL] - True Direct-fit OE connectors and harnesses, along with threads pre-coated with anti-seize compound right out of the box, make installation simple and hassle-free Compatible with select vehicles (Note: Engine affects fitment - verify specific vehicle fitment details, including sensor position, with fit checker above): CADILLAC: 2016-20 Escalade, 2016-20 Escalade ESV; CHEVROLET: 2016-18 Silverado 1500 Compatible with (continued): CHEVROLET: 2016-20 Suburban, 2016-20 Tahoe; GMC: 2016-18 Sierra 1500, 2019 Sierra 1500 Limited, 2016-20 Yukon, 2016-20 Yukon XL Replaces the following Original Equipment part number: 12666673