This 4-wire narrow-band oxygen sensor fits 2020-2021 Polestar Polestar 1, 2016-2021 Volvo XC90, 2018-2022 Volvo S90, XC60, 2021-2022 Volvo S60 and 2021 Volvo V60 with the 2.0L I4 engine and 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 350-341041 Oxygen Sensor Features:

• Fits 2020-2021 Polestar Polestar 1; 2016-2021 Volvo XC90; 2018-2022 Volvo S90, XC60; 2021-2022 Volvo S60; 2021 Volvo V60 with the 2.0L I4 engine
• 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, 375 mm (14.8 in.) overall length
• Female oblong connector at the harness end with 4 spade terminals
• Platinum electrode layer with a protective coating against combustion residue