The oxygen sensor installs on select 2013-2023 Volkswagen applications. 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 350-34764 Oxygen Sensor Features:

• Fits 2013-2022 Volkswagen Polo; 2014-2022 Volkswagen Vento; 2018-2023 Volkswagen Atlas; 2019-2023 Volkswagen Teramont; 2020-2023 Volkswagen Atlas Cross Sport
• Engine coverage includes 1.4L I4, 1.6L I4, 1.8L I4, 3.6L V6 applications
• Sensor location by application: B1S1 (bank and sensor number)
• Used in both upstream and downstream positions, depending on application
• 4-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 850 mm (33.5 in.) overall length
• Female oblong connector at the harness end with 4 spade terminals
• Platinum electrode layer with a protective coating against combustion residue