Walker Products Oxygen Sensor P/N:350-31040
Walker Products 350-34320 oxygen sensor for the 2001-2002 Jeep Wrangler 4-cylinder 2.5L, the 2001-2004 Wrangler 6-cylinder 4.0L, the 2003-2004 Wrangler 4-cylinder 2.4L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. Each part number is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback the system needs.
A damaged wiring harness or connector can be behind rough running, higher fuel consumption or a lit malfunction indicator light, just as a failing sensor can. Inspect both for physical damage and find the cause before buying.
The fitment also covers an oxygen sensor for the 2001-2002 Dodge Ram 1500 V8 5.9L, the 2002-2004 Ram 1500 V6 3.7L, the 2004 Ram 1500 V8 5.7L and the 2004-2006 Ram 1500 V10 8.3L, and for the 2001-2003 Jeep Grand Cherokee 6-cylinder 4.0L. This listing is one sensor, and the 2001-2004 Jeep Wrangler 6-cylinder 4.0L takes one. Driving something not named here? Run your year, make and model through the "Vehicles it fits" section before you order.
Fit and size
Build and materials
Interchange: CTK-OSCH4010
This part cross-references / interchanges with the following part numbers:
Is this the right O2 sensor for a 2001-2004 Jeep Wrangler 6-cylinder 4.0L?
Yes. Walker Products 350-34320 is listed for the 2001-2004 Jeep Wrangler 6-cylinder 4.0L, and that engine takes one sensor.
Is this a Jeep Wrangler oxygen sensor replacement for the 2003-2004 Wrangler 4-cylinder 2.4L?
Yes. The 2003-2004 Jeep Wrangler 4-cylinder 2.4L is on the fitment list, and it takes one sensor.
What type of sensor is this Walker Products oxygen sensor?
Walker Products 350-34320 is a narrow-band oxygen sensor with four wires. Its electrodes are made of a gas-permeable platinum layer.
What can a failing oxygen sensor cause in my engine?
A failed sensor can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. A shop can read stored fault codes to see which sensor is involved.
Does CTK-OSCH4010 cross to this oxygen sensor?
Yes. CTK-OSCH4010 is listed as an interchange number for Walker Products 350-34320.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.