Left Oxygen Sensor for 2001-2002 Nissan Pathfinder & More - Walker 350-34442

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$70.99
WARNING:California Proposition 65▾
MPN: 350-34442
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Walker Products Oxygen Sensor P/N:350-34442
Walker Products Oxygen Sensor P/N:350-34442
$70.99

Walker Products 350-34442 left oxygen sensor for the 2001-2002 Nissan Pathfinder V6 3.5L and other vehicles measures combustion efficiency from the amount of oxygen in the exhaust gas.

  • Walker Products oxygen sensor with a narrow-band, 4-wire design
  • Electrodes made of a gas-permeable platinum layer
  • Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates
  • Oxygen readings help fine-tune the air-fuel mixture for fuel economy
  • Made for its specific application and position, with the diagnostic feedback the ECU requires

Quick facts

  • Part: Walker Products 350-34442 oxygen sensor
  • Fits: 2001-2002 Nissan Pathfinder V6 3.5L and other vehicles
  • Position: Downstream left
  • Condition: New

A worn sensor can show up as an engine that runs poorly, higher fuel use or a lit malfunction indicator light. The wiring harness or the connector may be behind those signs instead, so inspect both for physical damage before you replace the sensor.

Fits

This direct-fit sensor suits the 2001-2002 Nissan Pathfinder V6 3.5L and the 2001-2003 Infiniti QX4 V6 3.5L. The listing is one sensor for the downstream left position; sensors for other positions are ordered separately.

Specifications

Fit and size

  • Position: downstream left
  • Quantity per vehicle at this position: 1
  • Thread: M18 - 1.5

Build and materials

  • Type: narrow-band
  • Wires: 4
  • Electrodes: gas-permeable platinum layer with a protective coating
  • Condition: new

In the box

One oxygen sensor. The downstream left position takes one.

Frequently Asked Questions

Is this the right O2 sensor for the 2001-2002 Nissan Pathfinder V6 3.5L?

Yes. Walker Products 350-34442 is the downstream left oxygen sensor for the 2001-2002 Nissan Pathfinder V6 3.5L, and that position takes one.

Does this QX4 oxygen sensor fit the 2001-2003 Infiniti QX4 V6 3.5L?

Yes. Walker Products 350-34442 fits the 2001-2003 Infiniti QX4 V6 3.5L as its downstream left oxygen sensor.

Is this oxygen sensor narrow-band, and how many wires does it have?

Yes, it is a narrow-band sensor with 4 wires and an M18 - 1.5 thread.

Will a failing oxygen sensor store a fault code?

On newer vehicles, yes: fault codes are stored in the ECU, and some relate to the affected sensor and its systems. A failing sensor can also raise exhaust emissions.

What does the coating on the Walker Products 350-34442 do?

The coating on the platinum electrodes keeps combustion residue and particulates in the exhaust gases from contaminating or eroding the electrode surfaces.