Oxygen Sensor for 2009 Toyota Corolla & More - Walker 350-34406

Walker Products 350-34406 oxygen sensor for the 2009 Toyota Corolla 4-cylinder 1.8L and other vehicles reads the oxygen content of the exhaust gas. That measurement shows how efficiently combustion is running.

• Monitors the air-fuel ratio for combustion efficiency
• Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gases
• Electrodes made of a gas-permeable platinum layer
• Measures oxygen levels so the air-fuel ratio can be fine-tuned for fuel economy
• Monitors exhaust gases to help reduce pollutants
• Made for its specific application and position, with the diagnostic feedback the ECU requires

Quick facts

• Part: Walker Products 350-34406 oxygen sensor
• Fits: 2009 Toyota Corolla 4-cylinder 1.8L and other vehicles
• Position: Downstream, downstream left, downstream right
• Condition: New

A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector, or another engine-management fault, can be behind those symptoms too, so track down the cause before you buy a sensor.

Fits

It is also an oxygen sensor for the 2001-2006 Lexus LS430 V8 4.3L and the 2002-2005 Lexus SC430 V8 4.3L. This listing is one sensor, and the fitment calls for one on each of these vehicles.

Specifications