Oxygen Sensor for 2011-2015 Toyota Sienna - Walker 350-34444

Walker Products 350-34444 oxygen sensor for the 2011-2013 Toyota Sienna 4-cylinder 2.7L and the 2011-2015 Sienna V6 3.5L measures the oxygen content of the exhaust gas. This direct-fit sensor works in the downstream position and gives the ECU the diagnostic feedback it needs.

• Monitors exhaust gases to help reduce pollutants
• Electrodes made of a gas-permeable platinum layer
• Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio for combustion efficiency
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates

Quick facts

• Part: Walker Products 350-34444 oxygen sensor
• Fits: the 2011-2013 Toyota Sienna 4-cylinder 2.7L and the 2011-2015 Sienna V6 3.5L
• Position: Downstream
• Condition: New

A failing sensor can show up as the engine running poorly, higher fuel consumption or a lit malfunction indicator light, though other faults can look the same. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage before you replace anything.

Fits

This is a direct-fit replacement for the 2011-2013 Toyota Sienna 4-cylinder 2.7L and the 2011-2015 Sienna V6 3.5L.

Specifications

In the box

One oxygen sensor. This listing holds one, and each engine option takes one.

Interchange: CTK-OSTO4010