The oxygen sensor installs in the downstream position on 2016-2024 Infiniti Q50, 2017-2022 Infiniti Q60, 2020-2024 Infiniti QX80, Nissan Armada and 2021-2022 Nissan Rogue. It signals whether the exhaust is running rich or lean so the engine computer can trim fuel delivery. A built-in heater brings the element to operating temperature quickly after a cold start.

Walker Products 350-34650 Oxygen Sensor Features:

• Fits 2016-2024 Infiniti Q50; 2017-2022 Infiniti Q60; 2020-2024 Infiniti QX80, Nissan Armada; 2021-2022 Nissan Rogue
• Engine coverage includes 2.5L I4, 3.0L V6, 5.6L V8 applications
• Sensor location by application: B1S2 (bank and sensor number)
• 4-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 300 mm (11.8 in.) overall length
• Female rectangle connector at the harness end
• Platinum electrode layer with a protective coating against combustion residue