Walker Products 250-24449 left oxygen sensor for the 2001-2002 Nissan Pathfinder V6 3.5L and other vehicles senses how much oxygen is in the exhaust gas. It is a 4-wire, narrow-band, direct-fit sensor.
Each Walker Products oxygen sensor part number is made for its own application and fitment position, with the diagnostic feedback the ECU needs
Tracks the air-fuel ratio for combustion efficiency and helps reduce pollutants
Electrodes coated with a gas-permeable platinum layer
Platinum-layer coating keeps combustion residue and particulates in the exhaust from contaminating or eroding the electrode surfaces
Oxygen readings help fine-tune the air-fuel mixture to support fuel economy
Quick facts
Part: Walker Products 250-24449 oxygen sensor
Fits: 2001-2002 Nissan Pathfinder V6 3.5L and other vehicles
Position: Downstream left
Condition: New
A failing sensor can show up as rough running, higher fuel consumption or a malfunction indicator light. A damaged wiring harness or connector, or a misfire, can be behind those signs too, so find the cause before you buy a sensor.
Fits
It fits the 2001-2002 Nissan Pathfinder V6 3.5L and the 2001-2003 Infiniti QX4 V6 3.5L. Each takes one in the downstream left position, and this listing is a single sensor.
Specifications
Fit and size
Position: downstream left
Quantity per vehicle: 1
Wires: 4
Build and materials
Type: narrow-band, direct fit
Electrodes: coated with a gas-permeable platinum layer
Condition: New
Frequently Asked Questions
Is this O2 sensor right for the 2001-2002 Nissan Pathfinder V6 3.5L?
Yes. Walker Products 250-24449 is the downstream left oxygen sensor for the 2001-2002 Nissan Pathfinder V6 3.5L, and that position takes one.
Does the 2001-2003 Infiniti QX4 V6 3.5L take this downstream left oxygen sensor?
Yes. This sensor fits the 2001-2003 Infiniti QX4 V6 3.5L in the downstream left position, one per vehicle.
How many wires does the Walker Products 250-24449 oxygen sensor have?
Walker Products 250-24449 has 4 wires and is a narrow-band, direct-fit sensor.
What can a failing downstream oxygen sensor look like?
Rough running, higher fuel use or a malfunction indicator light can appear, and fault codes may be stored. With the engine off and cool, the sensor, wiring harness and connector can be checked for damage.
What is the coating on the electrodes of this oxygen sensor?
Its electrodes carry a gas-permeable platinum layer, which keeps combustion residue and exhaust particulates from fouling or wearing the electrode surfaces.
Walker 250-241273 sensor for the 2019-2020 Audi A4 2.0L and other vehicles measures combustion efficiency from the amount of oxygen in the exhaust gas. This downstream Walker oxygen sensor is a...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
