Walker Products Oxygen Sensor P/N:250-24493
Walker Products 250-241296 right oxygen sensor for the 2020-2024 Toyota 4Runner V6 4.0L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. Every Walker part number is made for its specific application and fitment position, and it gives the diagnostic feedback the ECU needs.
A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. A damaged wiring harness or connector can be behind the same signs, so inspect those for physical damage and find the cause before buying a sensor.
It is a direct-fit oxygen sensor for the 2020-2024 Toyota 4Runner V6 4.0L and the 2020-2021 Lexus LX570 V8 5.7L. This listing is one sensor for the downstream right position, and the 2020-2024 Toyota 4Runner V6 4.0L takes one in that position; sensors for other positions are ordered separately.
Fit and size
Build and materials
Does the Walker Products 250-241296 fit the 2020-2021 Lexus LX570 V8 5.7L?
Yes. Walker Products 250-241296 fits the 2020-2021 Lexus LX570 V8 5.7L, and it also fits the 2020-2024 Toyota 4Runner V6 4.0L.
Is this Walker Products oxygen sensor narrow-band or wideband?
It is narrow-band. Walker Products 250-241296 is a 4-wire direct-fit sensor that determines the oxygen content of the exhaust gas to monitor the air-fuel ratio.
Is this oxygen sensor upstream or downstream?
It is a downstream sensor for the right position. Walker Products 250-241296 is listed for that position only.
Can a bad downstream oxygen sensor turn on the check engine light?
Yes, it can. A failed sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator light.
What does the platinum layer on this oxygen sensor do?
The electrodes are coated with a gas-permeable platinum layer. The coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
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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.