Walker Products Oxygen Sensor P/N:350-341076
Walker Products 350-34308 oxygen sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L sits downstream in the exhaust and sends the engine computer an oxygen reading. Built for its specific application and fitment position, this O2 sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L gives the ECU the diagnostic feedback it expects.
A rough-running engine, higher fuel use, more exhaust emissions or a lit check engine light can mean the sensor is worn, though a damaged wiring harness or connector can be behind them as well, so inspect both for physical damage first.
It is a direct-fit replacement for the 2001-2005 Lexus IS300 6-cylinder 3.0L.
Fit and size
Build and materials
One oxygen sensor. This listing is a single sensor, and the 2001-2005 Lexus IS300 6-cylinder 3.0L takes one.
Will Walker Products 350-34308 work as an oxygen sensor on a 2001 Lexus IS300 6-cylinder 3.0L?
Yes. Walker Products 350-34308 fits the 2001-2005 Lexus IS300 6-cylinder 3.0L, which includes the 2001 model year.
Is this Walker Products oxygen sensor a narrow-band type?
Yes. Walker Products 350-34308 is a narrow-band oxygen sensor with 4 wires and an M18 - 1.5 thread.
What protects the electrodes on this oxygen sensor?
A coating guards the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas. The electrodes are made of a gas-permeable platinum layer.
What can a failing downstream oxygen sensor cause?
The engine can run poorly, fuel use and exhaust emissions can rise, or the check engine light can come on. A shop can read the stored fault codes to see whether the sensor is involved.
Does this oxygen sensor give the ECU the feedback it needs?
Yes. It is made for its specific application and fitment position, and it provides the diagnostic system feedback the ECU requires.
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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.