Left Oxygen Sensor for 2010-2012 BMW 740i & More - Walker 350-35054

Walker Products 350-35054 left oxygen sensor for the 2010-2012 BMW 740i 6-cylinder 3.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently combustion is running. This Walker Products oxygen sensor is a wide-band unit made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.

• Monitors exhaust gases and reduces pollutants
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
• Electrodes coated with a gas-permeable platinum layer
• Determines the oxygen content of the exhaust gas to monitor the air fuel ratio

Quick facts

• Part: Walker Products 350-35054 oxygen sensor
• Fits: 2010-2012 BMW 740i 6-cylinder 3.0L and other vehicles
• Position: Upstream, downstream, upstream left
• Condition: New

A failing sensor can make the engine run poorly, raise fuel use and exhaust emissions, or turn on the malfunction indicator light. A damaged wiring harness or connector can be behind the same signs, so look them over and find the cause before you buy a sensor.

Fits

Besides the car named above, this sensor fits the 2011-2012 BMW 740Li 6-cylinder 3.0L and the 2008-2010 BMW 535i 6-cylinder 3.0L, along with many other models. A 2008-2010 BMW 535i 6-cylinder 3.0L takes one sensor, and this listing is one. If your car is not named here, open the "Vehicles it fits" section to check your exact model and engine.

Specifications