The 5-wire wide-band oxygen sensor is a replacement sensor for select 2016-2024 Buick, Cadillac, Chevy, GMC and other applications. It measures the exhaust air-fuel ratio across a broad range so the engine computer can meter fuel precisely. A built-in heater brings the element to operating temperature quickly after a cold start.

Walker Products 350-35163 Oxygen Sensor Features:

• Fits 2020-2024 Buick Encore GX, Cadillac CT4, CT5, XT5, Chevy Blazer; 2021-2024 Buick Envision, Cadillac XT6, Chevy Trailblazer; 2016-2019 Cadillac CT6
• Fits 2019-2024 Cadillac XT4; 2023-2024 Cadillac Escalade, Escalade ESV; 2020-2023 GMC Acadia; 2018-2023 Jeep Wrangler; 2019-2023 Jeep Cherokee
• Engine coverage includes 1.3L I3, 2.0L I4, 2.7L I4, 3.0L V6, 6.2L V8 applications
• Sensor locations by application: B1S1, B2S1 (bank and sensor number)
• Used in both upstream and downstream positions, depending on application
• 5-wire wide-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 305 mm (12 in.) overall length
• Female square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue