Walker Products 250-24259 oxygen sensor for the 2001-2004 Jeep Wrangler 6-cylinder 4.0L and other vehicles measures the oxygen content of the exhaust gas. This Walker Products oxygen sensor is a 4-wire, narrow-band direct-fit unit made for its specific application and position, and it passes the diagnostic feedback the ECU needs.
- Electrodes with a gas-permeable platinum layer
- Measures oxygen levels so the air-fuel mixture can be fine-tuned, which supports normal fuel economy
- Monitors the air-fuel ratio by reading the oxygen content of the exhaust gas, for combustion efficiency
- Monitors exhaust gases to help reduce pollutants
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
Quick facts
- Part: Walker Products 250-24259 oxygen sensor
- Fits: 2001-2004 Jeep Wrangler 6-cylinder 4.0L and other vehicles
- Position: Upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
Rough running, higher fuel use or a lit malfunction indicator light can mean the sensor is worn, though the wiring harness or connector can also be behind them, so inspect both for physical damage before replacing the sensor. Newer vehicles may also store a fault code in the ECU.
Fits
It is a Jeep Wrangler oxygen sensor replacement for the 2001-2004 Wrangler 6-cylinder 4.0L, an oxygen sensor for the 2001-2004 Jeep Grand Cherokee 6-cylinder 4.0L, and it fits the 2001 Dodge Ram 1500 V6 3.9L or V8 5.2L, the 2001-2003 Ram 1500 V8 5.9L, the 2002-2003 Ram 1500 V6 3.7L, the 2003 Ram 1500 V8 5.7L, the 2004-2006 Ram 1500 V10 8.3L and many other vehicles. Don't see your vehicle above? Look up its year, model and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per application: 1
- Thread size: M18 - 1.5
- Wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor, which is the quantity the fitment calls for.
Frequently Asked Questions
Is this the right O2 sensor for a 2001-2004 Jeep Wrangler 6-cylinder 4.0L?
Yes. Walker Products 250-24259 fits the 2001-2004 Jeep Wrangler 6-cylinder 4.0L, and the fitment calls for one sensor.
Can I use this as a Ram 1500 oxygen sensor on a 2003 Dodge Ram 1500 V8 5.7L?
Yes. The 2003 Dodge Ram 1500 V8 5.7L is in the fitment for Walker Products 250-24259, with one sensor per application.
Is this a narrow-band or wideband oxygen sensor?
It is a narrow-band sensor. It is a 4-wire direct-fit unit with an M18 - 1.5 thread.
What can a worn oxygen sensor do to how my engine runs?
A failed sensor can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. Newer vehicles can also store a fault code in the ECU.
What does the coating on this oxygen sensor protect against?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes have a gas-permeable platinum layer.
