O2 Oxygen Sensor; Downstream (18-19 6.0L Sierra 2500 HD)Find parts that fit my vehicle

Premium Emission Sensor. The O2 Oxygen Sensor; Downstream is engineered to monitor the exhaust gases emitted from your vehicle to ensure proper engine performance and support emissions system feedback. This sensor plays a critical role in the engine management system by providing real-time data to the ECU to help maintain emission controls.

Construction and Appearance. This sensor features heat-resistant materials and durable wiring designed to withstand contaminants and moisture. It comes with a black finish and an oblong-shaped connector, ensuring a secure and lasting electrical connection. The sensor includes four terminals with male gender and a 281 mm wiring harness length for reliable installation.

Installation. Installation is straightforward with no drilling required, making it accessible for professionals and automotive enthusiasts. The direct-fit design simplifies mounting and connection, ensuring quick and hassle-free replacement.

Warranty. The product includes a 3-year warranty, ensuring peace of mind and long-term reliability.

Application. Please consult the fitment chart for correct vehicle compatibility. This downstream sensor is designed to meet the requirements of multiple Buicks, Cadillacs, and related models, specifically for downstream Bank 1 Sensor 2 (B1S2) positions. Verify your vehicle's make, model, and year before purchasing to ensure proper fitment.

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