Left Oxygen Sensor for 2019-2021 BMW M2 & More - Walker 350-34684

Walker Products 350-34684 left oxygen sensor for the 2019-2021 BMW M2 6-cylinder 3.0L and other vehicles measures oxygen in the exhaust gas to track combustion efficiency. It is made for its specific application and fitment position, and it supplies the diagnostic feedback the ECU requires.

• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
• Monitors exhaust gases to help reduce pollutants
• Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio for combustion efficiency
• Oxygen readings help fine-tune the air-fuel mixture for fuel economy
• Electrodes made of a gas-permeable platinum layer

Quick facts

• Part: Walker Products 350-34684 oxygen sensor
• Fits: 2019-2021 BMW M2 6-cylinder 3.0L and other vehicles
• Position: Downstream left
• Condition: New

A failing sensor can show up as poor running, higher fuel consumption or a malfunction indicator light, but a damaged wiring harness or connector may be behind those signs too, so inspect both for physical damage before replacing the sensor.

Fits

It also fits the 2015-2020 BMW M4 6-cylinder 3.0L and the 2015-2018 BMW M3 6-cylinder 3.0L. This listing is one sensor for the left side; a sensor for the other side is a separate part.

Specifications

In the box

One oxygen sensor; this position takes one.