Walker Products 350-34439 oxygen sensor for the 1997-2000 Jeep Wrangler 4-cylinder 2.5L or 6-cylinder 4.0L and other vehicles reads the amount of oxygen in the exhaust gas. Every Walker Products oxygen sensor part number is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Monitors the air-fuel ratio of the exhaust gas for combustion efficiency
- Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates
- Oxygen level readings are used to fine-tune the air-fuel mixture
- Electrodes made of a gas-permeable platinum layer
- Exhaust gas monitoring helps reduce pollutants
Quick facts
- Part: Walker Products 350-34439 oxygen sensor
- Fits: the 1997-2000 Jeep Wrangler 4-cylinder 2.5L or 6-cylinder 4.0L and other vehicles
- Position: upstream, downstream, upstream left, upstream right, downstream left, downstream right, upstream rear, upstream front, downstream front, downstream rear
- Condition: New
A damaged wiring harness or connector can be behind a rough-running engine, higher fuel consumption or a lit malfunction indicator light too, so find out what is causing the signs before you buy a sensor. If the oxygen sensor is the cause, this one replaces it.
Fits
It is a direct-fit oxygen sensor replacement for the 1997-2000 Jeep Wrangler 4-cylinder 2.5L or 6-cylinder 4.0L, and an oxygen sensor for the 1996-1998 Jeep Grand Cherokee V8 5.2L, the 1996-1999 Grand Cherokee 6-cylinder 4.0L and the 1998 Grand Cherokee V8 5.9L. Each of those applications takes one sensor. Many more vehicles are covered, so open the "Vehicles it fits" section to check your exact model, year and engine.
Specifications
Fit and size
- Position: varies by application (upstream or downstream)
- Quantity per application: 1
- Thread size: M18 - 1.5
- Wires: 4
Build and materials
- Type: narrow-band oxygen sensor
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSCH4003
Frequently Asked Questions
Is this Ram 1500 oxygen sensor the right one for the 1998-2001 Dodge Ram 1500 V8 5.9L?
Yes. Walker Products 350-34439 fits the 1998-2001 Dodge Ram 1500 V8 5.9L, one sensor per application. For other years and engines, open the "Vehicles it fits" section.
Is this the right 1997 Jeep Wrangler oxygen sensor for the 4-cylinder 2.5L or the 6-cylinder 4.0L?
Yes. Walker Products 350-34439 fits the 1997-2000 Jeep Wrangler with the 4-cylinder 2.5L or the 6-cylinder 4.0L, and each application takes one.
What thread size does the 350-34439 narrow-band sensor have?
The thread is M18 - 1.5. This oxygen sensor is a narrow-band type with four wires.
What signs can a failing oxygen sensor show?
A failed sensor might show up as the engine running poorly, higher fuel consumption or a lit malfunction indicator light. Newer vehicles may also store a fault code in the ECU.
What protects the electrodes in this oxygen sensor?
A coating shields the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases. The electrodes are made of a gas-permeable platinum layer.
