Walker Products 250-23075 oxygen sensor for the 1996-1999 Nissan Altima 4-cylinder 2.4L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. This Walker Products oxygen sensor is a 3-wire, narrow-band, direct-fit unit for the upstream position.
- Monitors exhaust gases and helps reduce pollutants for a cleaner environment
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas
- Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio for combustion efficiency
- Measures oxygen levels to fine-tune the air-fuel mixture and help improve fuel economy
- Electrodes made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 250-23075 oxygen sensor
- Fits: 1996-1999 Nissan Altima 4-cylinder 2.4L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption or emissions, or turn on the malfunction indicator light. An exhaust leak, a damaged wiring harness or connector, or a fuel or ignition fault can be behind these signs as well, so find the cause before you buy a sensor. With the engine off and cool, look over the sensor, harness and connector for physical damage.
Fits
It is a direct-fit replacement for many vehicles, including the 1996-1999 Nissan Altima 4-cylinder 2.4L and the 1985-1988 Nissan Maxima V6 3.0L. It also fits as an oxygen sensor for the 2015 Nissan NP300 4-cylinder 2.4L. If your car is not named here, run its year and engine through the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Wires: 3
Build and materials
- Type: Narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Coating: on the electrode surfaces
- Condition: New
In the box
One oxygen sensor. The application calls for one.
Frequently Asked Questions
Is the Walker Products 250-23075 the right oxygen sensor for the 1985-1988 Nissan Maxima V6 3.0L?
Yes. Walker Products 250-23075 is an upstream oxygen sensor listed for the 1985-1988 Nissan Maxima V6 3.0L, and that engine takes one.
Is this upstream sensor the right one for the 1996-1999 Nissan Altima 4-cylinder 2.4L?
Yes. This sensor is listed for the 1996-1999 Nissan Altima 4-cylinder 2.4L, which takes one. For any other car, look it up in the "Vehicles it fits" section.
What thread size does this oxygen sensor have?
Walker Products 250-23075 has an M18 - 1.5 thread. It is a 3-wire, narrow-band sensor for the upstream position.
Does a failing upstream oxygen sensor set a fault code?
It can. Newer vehicles store fault codes in the ECU, and some of them relate to the affected sensor and its associated systems.
Is this oxygen sensor sold singly or as a set?
This listing is one oxygen sensor, and the application calls for one.
