Oxygen Sensor for 2003-2004 Nissan Pathfinder & More - Walker 350-34488

Walker Products 350-34488 oxygen sensor for the 2003-2004 Nissan Pathfinder V6 3.5L and other vehicles measures the oxygen content of the exhaust gas.

• Narrow-band, four-wire sensor that gives the ECU the diagnostic feedback it needs
• Reads exhaust oxygen levels so the air-fuel ratio can be fine-tuned for fuel economy
• Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gases
• Electrodes made of a gas-permeable platinum layer
• Monitors exhaust gases to help reduce pollutants

Quick facts

• Part: Walker Products 350-34488 oxygen sensor
• Fits: 2003-2004 Nissan Pathfinder V6 3.5L and other vehicles
• Position: Upstream, upstream left, upstream right
• Condition: New

A failing sensor can show up as rough running, higher fuel use or a lit malfunction indicator light. Those signs alone do not prove the sensor is the problem, since a vacuum leak can produce a similar picture. With the engine off and cool, you can inspect the sensor, harness and connector for physical damage.

Fits

Vehicles it fits include the 2003-2004 Nissan Pathfinder V6 3.5L, the 2005-2008 Nissan Urvan 4-cylinder 2.4L and the 2002-2006 Infiniti Q45 V8 4.5L. If your car is not named here, open the "Vehicles it fits" section to check your exact model and engine. This listing is one sensor, and a 2003-2004 Nissan Pathfinder V6 3.5L calls for one.

Specifications