The 5-wire wide-band oxygen sensor is a replacement sensor for select 2009-2026 Alfa Romeo, Genesis, Hyundai, Kia 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 350-35017 Oxygen Sensor Features:

• Fits 2017-2025 Alfa Romeo Giulia; 2018-2025 Alfa Romeo Stelvio; 2019-2023 Genesis G70; 2009-2019 Hyundai Sonata; 2010-2020 Hyundai Santa Fe; 2010-2021 Hyundai Tucson
• Fits 2013-2018 Hyundai Santa Fe Sport; 2015 Hyundai ix35; 2017-2020 Hyundai Elantra; 2018-2020 Hyundai Elantra GT; 2018-2021 Hyundai Kona, Kia Stinger
• Also fits select Alfa Romeo, Genesis, Hyundai, Kia and Seat applications
• Sensor location by application: B1S1 (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, 475 mm (18.7 in.) overall length
• Male square connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue