Oxygen Sensor for 2015-2019 Toyota Highlander - Walker 350-34093

Walker Products 350-34093 oxygen sensor for the 2015-2019 Toyota Highlander 4-cylinder 2.7L measures the oxygen in the exhaust gas from its downstream position. It gives the ECU the diagnostic feedback it needs for this application.

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

Quick facts

• Part: Walker Products 350-34093 oxygen sensor
• Fits: 2015-2019 Toyota Highlander 4-cylinder 2.7L
• Position: Downstream
• Condition: New

A failing oxygen sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is at fault, since a vacuum leak can also make an engine run poorly. With the engine off and cool, look the sensor, wiring harness and connector over for physical damage.

Fits

It fits the 2015-2019 Toyota Highlander 4-cylinder 2.7L and the 2005-2007 Highlander 4-cylinder 2.4L, and each takes one. This listing is a single downstream sensor.

Specifications