Walker Products 250-25017 oxygen sensor for the 2009-2012 Hyundai Sonata 4-cylinder 2.4L, the 2011 Sonata 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. This Walker Products oxygen sensor is a wide-band unit made for its specific application and fitment position, and it gives the ECU the diagnostic feedback the system needs.
- Electrodes coated with a gas-permeable platinum layer
- Monitors exhaust gases and reduces pollutants for a cleaner environment
- Determines the oxygen content of the exhaust gas and tracks the air fuel ratio for combustion efficiency
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and exhaust particulates
- Measures oxygen levels to fine-tune the air-fuel mixture and support fuel economy
Quick facts
- Part: Walker Products 250-25017 oxygen sensor
- Fits: 2009-2012 Hyundai Sonata 4-cylinder 2.4L, the 2011 Sonata 4-cylinder 2.0L and other vehicles
- Position: Upstream, downstream, upstream left, upstream right
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, and other problems can produce those signs too. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage before you replace anything.
Fits
It is an oxygen sensor replacement for the 2009-2012 Hyundai Sonata 4-cylinder 2.4L, the 2011 Sonata 4-cylinder 2.0L and the 2021-2026 Hyundai Elantra 4-cylinder 1.6L, an oxygen sensor for the 2017-2019 Kia Soul 4-cylinder 1.6L, and it fits many other vehicles. This listing is one sensor, and each application takes one. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: upstream, downstream, upstream left, upstream right
- Quantity per application: 1
- Thread: M18 - 1.5
Build and materials
- Type: wide-band (5-W)
- Electrodes: gas-permeable platinum layer
- Condition: New
Frequently Asked Questions
Is this the Hyundai Elantra oxygen sensor for a 2021-2026 Hyundai Elantra 4-cylinder 1.6L?
Yes. Walker Products 250-25017 is listed for the 2021-2026 Hyundai Elantra 4-cylinder 1.6L, one sensor per application. The "Vehicles it fits" section covers other engines and years.
Is this a 2012 Hyundai Sonata oxygen sensor for the 4-cylinder 2.4L?
Yes. Walker Products 250-25017 is listed for the 2009-2012 Hyundai Sonata 4-cylinder 2.4L, which includes the 2012 model year.
Is this a wide-band oxygen sensor, and what thread does it use?
Yes. This oxygen sensor is a 5-W wide-band unit with an M18 - 1.5 thread.
What does the platinum coating on this oxygen sensor do?
The electrodes carry a gas-permeable platinum layer, and the coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
Can this oxygen sensor affect fuel economy?
It measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy. A sensor that has failed can raise fuel consumption.
