Walker Products Oxygen Sensor P/N:250-25174
Walker Products 250-241271 oxygen sensor for the 2021-2026 Hyundai Elantra 4-cylinder 2.0L reads the oxygen in the exhaust gas for the engine computer. It is the downstream sensor.
A failing sensor can show up as rough running, higher fuel use or a lit malfunction indicator light, though those signs have other possible sources. Before replacing it, look over the sensor, its wiring harness and the connector for physical damage with the engine off and cool.
This sensor is a direct-fit replacement for the 2021-2026 Hyundai Elantra 4-cylinder 2.0L, which takes one in the downstream position. This listing is a single sensor.
Fit and size
Build and materials
Is this the right oxygen sensor for the 2021-2026 Hyundai Elantra 4-cylinder 2.0L?
Yes. Walker Products 250-241271 is a downstream oxygen sensor for the 2021-2026 Hyundai Elantra 4-cylinder 2.0L, and the car takes one.
What type of sensor is the Walker Products 250-241271?
It is a narrow-band oxygen sensor with an M18 - 1.5 thread, made for the downstream position.
What does the coating on this oxygen sensor do?
It keeps combustion residue and particulates in the exhaust from contaminating or eroding the electrode surfaces of this sensor.
What can a failing downstream oxygen sensor cause?
A failed sensor can make the engine run poorly, raise fuel consumption or turn on the malfunction indicator light. Newer vehicles may also store a fault code related to the sensor.
How does a narrow-band oxygen sensor help fuel economy?
The sensor measures oxygen levels in the exhaust so the ECU can fine-tune the air-fuel mixture, which can improve fuel economy.
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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.