Walker Products Oxygen Sensor P/N:350-341076
Walker Products 350-34167 oxygen sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L measures the oxygen in the exhaust gas to show how efficiently the engine is burning fuel. It sits downstream in the exhaust and reports what it reads to the engine computer.
A worn sensor can show up as an engine that runs poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Before you replace the sensor, look over its wiring harness and connector for physical damage with the engine off and cool, since a fault there may be what the engine computer is reacting to.
This downstream sensor is a direct-fit Lexus IS300 O2 sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L.
Fit and size
Build and materials
One oxygen sensor. The 2001-2005 Lexus IS300 6-cylinder 3.0L takes one in this downstream position.
Product information is for general reference and may contain errors. See our Disclaimer.
Is this O2 sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L upstream or downstream?
It is a downstream sensor. Walker Products 350-34167 is a direct-fit oxygen sensor for the 2001-2005 Lexus IS300 6-cylinder 3.0L.
Does this oxygen sensor fit a 2001 Lexus IS300 6-cylinder 3.0L?
Yes. Walker Products 350-34167 covers the 2001-2005 Lexus IS300 6-cylinder 3.0L, so the 2001 model year is included.
Is the Walker Products oxygen sensor narrow-band or wideband?
Narrow-band. Walker Products 350-34167 has 4 wires and an M18 - 1.5 thread.
What can a worn downstream oxygen sensor do to the engine?
A failed sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or light the malfunction indicator lamp. Newer vehicles store fault codes in the ECU that a shop can read.
What does the coating on this narrow-band oxygen sensor protect?
The coating keeps combustion residue and particulates in the exhaust gas from contaminating and eroding the electrode surfaces.
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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.