Walker Products 250-25005 oxygen sensor for the 2004 Nissan Altima V6 3.5L, the 2004-2006 Altima 4-cylinder 2.5L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. It is a 5-W wide-band unit made for the specific application and position it is listed for.
- Electrodes made of a gas-permeable platinum layer
- Monitors exhaust gases and helps reduce pollutants
- Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio
- Coating protects the electrode surfaces from contamination and erosion
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
Quick facts
- Part: Walker Products 250-25005 oxygen sensor
- Fits: the 2004 Nissan Altima V6 3.5L, the 2004-2006 Altima 4-cylinder 2.5L and other vehicles
- Position: Upstream, upstream left, upstream right, upstream rear or upstream front
- Condition: New
A failing sensor can go with rough running, higher fuel use, more exhaust emissions or a check engine light. Several other faults produce these signs too, so with the engine off and cool, look the wiring harness and connector over for physical damage first. If the sensor itself is at fault, this one replaces it.
Fits
Listed for a wide range of Nissan, Infiniti and Volvo models, this Walker Products oxygen sensor works as a Nissan Altima sensor for the 2004 V6 3.5L and the 2004-2006 4-cylinder 2.5L. It also fits the 2003-2006 Nissan Sentra 4-cylinder 1.8L, the 2004-2006 Sentra 4-cylinder 2.5L and the 2004-2007 Infiniti G35 V6 3.5L. This listing is a single sensor, and the quantity for every listed application is one. Driving something not named here? Look up your own year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream, upstream left, upstream right, upstream rear or upstream front
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Type: 5-W wide-band
- Electrodes: gas-permeable platinum layer
- Condition: New
Frequently Asked Questions
Is Walker Products 250-25005 a Nissan Sentra oxygen sensor for the 2003-2006 4-cylinder 1.8L or the 2004-2006 4-cylinder 2.5L?
Yes. Walker Products 250-25005 is listed for the 2003-2006 Nissan Sentra 4-cylinder 1.8L and the 2004-2006 Sentra 4-cylinder 2.5L, with one sensor per vehicle.
Is this an Infiniti G35 oxygen sensor for the 2004-2007 V6 3.5L?
Yes. This oxygen sensor is listed for the 2004-2007 Infiniti G35 V6 3.5L, and the quantity for that application is one.
What thread size does this wide-band oxygen sensor have?
Walker Products 250-25005 has an M18 - 1.5 thread. It is a 5-W wide-band sensor sold as a single piece.
What can a failing oxygen sensor cause in the engine?
Rough running, higher fuel consumption, more exhaust emissions or a check engine light can go with a failing sensor. A shop can read the stored fault codes to find the cause.
How does the coating on this oxygen sensor protect it?
The coating on Walker Products 250-25005 keeps combustion residue and exhaust particulates from contaminating or eroding the electrode surfaces.
