Walker Products 250-23500 oxygen sensor for the 1987-1990 Jeep Wrangler 4-cylinder 2.5L and other vehicles measures the oxygen content of the exhaust gas. This upstream Walker Products oxygen sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Monitors the air-fuel ratio for combustion efficiency
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Electrodes made of a gas-permeable platinum layer
- Monitors exhaust gases to help reduce pollutants
- Oxygen readings help fine-tune the air-fuel mixture to support fuel economy
Quick facts
- Part: Walker Products 250-23500 oxygen sensor
- Fits: 1987-1990 Jeep Wrangler 4-cylinder 2.5L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is the problem, since a vacuum leak can cause similar symptoms.
Fits
This listing is one upstream sensor, with a quantity of one per vehicle, for the 1987-1990 Jeep Wrangler 4-cylinder 2.5L, the 1987-1990 Jeep Cherokee 4-cylinder 2.5L and the 1986-1990 Jeep Comanche 4-cylinder 2.5L. If your Jeep is not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Sensor type: Narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this Jeep Wrangler oxygen sensor replacement the right one for the 1987-1990 Jeep Wrangler 4-cylinder 2.5L?
Yes. Walker Products 250-23500 is listed for the 1987-1990 Jeep Wrangler 4-cylinder 2.5L, and that vehicle takes one upstream sensor.
Will this Jeep Cherokee oxygen sensor fit the 1987-1990 Jeep Cherokee 4-cylinder 2.5L?
Yes. This upstream sensor is listed for the 1987-1990 Jeep Cherokee 4-cylinder 2.5L, one per vehicle. For another Jeep, look it up in the "Vehicles it fits" section.
Is the Walker Products 250-23500 oxygen sensor narrow-band, and what is its thread size?
Walker Products 250-23500 is a narrow-band sensor with an M18 - 1.5 thread.
What signs can point to a failing upstream oxygen sensor?
Poor running, higher fuel use, higher exhaust emissions or a lit malfunction indicator light can point to it. With the engine off, look over the wiring harness and connector for damage.
What does the coating on this oxygen sensor do?
The coating shields the electrode surfaces from contamination and erosion caused by combustion residue and particulates in the exhaust gases. The electrodes are made of a gas-permeable platinum layer.
