Walker Products 350-34384 oxygen sensor for the 2002-2003 Nissan Altima 4-cylinder 2.5L, the 2004-2006 Altima V6 3.5L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns its fuel.
- Narrow-band, 4-wire sensor that monitors the air fuel ratio for combustion efficiency
- Electrodes made of a gas-permeable platinum layer
- Coating that helps keep combustion residue and particulates from contaminating or eroding the electrode surfaces
- Monitors exhaust gases to help reduce pollutants
- Made for its specific application and sensor position, and supplies the diagnostic feedback the ECU requires
Quick facts
- Part: Walker Products 350-34384 oxygen sensor
- Fits: 2002-2003 Nissan Altima 4-cylinder 2.5L, the 2004-2006 Altima V6 3.5L and other vehicles
- Position: Downstream, downstream left, downstream right, downstream front, downstream rear
- 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 an exhaust or vacuum leak can produce some of them too. The sensor, wiring harness and connector should also be looked over for physical damage, with the engine off and cool.
Fits
It is also an O2 sensor for the 2005 Nissan Altima V6 3.5L. Along with the cars named above, this direct-fit sensor suits the 2005-2012 Nissan Frontier V6 4.0L and works as a Nissan Pathfinder oxygen sensor for the 2005-2012 Pathfinder V6 4.0L. Your own car may be among the others, so look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right, downstream front, downstream rear
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band, 4-wire, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
This listing is one oxygen sensor, and each vehicle in the fitment takes one.
Interchange: CTK-OSNS4016
Frequently Asked Questions
Is this the right O2 sensor for the 2002-2003 Nissan Altima 4-cylinder 2.5L?
Yes. Walker Products 350-34384 is listed for the 2002-2003 Nissan Altima 4-cylinder 2.5L, and each of these cars takes one sensor.
Is this a 2006 Nissan Altima V6 3.5L O2 sensor?
Yes. The 2004-2006 Nissan Altima V6 3.5L is in the fitment, which covers the 2006 model year, with a quantity of one.
Does this Walker Products oxygen sensor use a narrow-band design?
Yes. Walker Products 350-34384 is a 4-wire, narrow-band direct-fit sensor with an M18 - 1.5 thread.
What does the coating on this oxygen sensor protect against?
The coating keeps combustion residue and particulates in the exhaust gases from contaminating or eroding the electrode surfaces. The electrodes themselves are a gas-permeable platinum layer.
Is this a downstream oxygen sensor?
Yes. The catalog lists this sensor for downstream positions, including downstream left, downstream right, downstream front and downstream rear.
