Walker Products 350-34266 oxygen sensor for the 1999-2001 Hyundai Sonata V6 2.5L, the 2002 Sonata V6 2.7L and other vehicles measures the oxygen in the exhaust gas for the engine computer. It is made for a specific application and fitting position and passes the diagnostic feedback the ECU needs.
- Measures the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
- Monitors exhaust gases to help reduce pollutants and fine-tune the air-fuel ratio for fuel economy
Quick facts
- Part: Walker Products 350-34266 oxygen sensor
- Fits: the 1999-2001 Hyundai Sonata V6 2.5L, the 2002 Sonata V6 2.7L and other vehicles
- Position: upstream left, upstream right, downstream left, upstream rear, upstream front, downstream front
- Condition: New
A failing oxygen sensor can show up as the engine running poorly, higher fuel use or exhaust emissions, or a lit malfunction indicator light. Those signs alone do not prove the sensor is at fault, since a damaged wiring harness or connector can be behind them as well. This listing is a single sensor, and the fitment calls for one per application.
Fits
This oxygen sensor fits the 1999-2001 Hyundai Sonata V6 2.5L and the 2002 Sonata V6 2.7L, the 2001-2002 Hyundai Santa Fe V6 2.7L, and the 2001 Kia Optima V6 2.5L and the 2002-2003 Optima V6 2.7L, among many other vehicles. Driving something else? Run your own year, model and engine through the "Vehicles it fits" section before you order.
Specifications
Fit and size
- Position: upstream left, upstream right, downstream left, upstream rear, upstream front, downstream front
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does this O2 sensor fit the 1999-2001 Hyundai Sonata V6 2.5L?
Yes. Walker Products 350-34266 fits the 1999-2001 Hyundai Sonata V6 2.5L and the 2002 Sonata V6 2.7L, with one sensor per application.
Is this oxygen sensor right for the 2001 Kia Optima V6 2.5L?
Yes. Walker Products 350-34266 fits the 2001 Kia Optima V6 2.5L and the 2002-2003 Optima V6 2.7L. For another year or engine, use the "Vehicles it fits" section.
Is this Walker Products oxygen sensor a narrow-band type?
Yes. This sensor is a narrow-band type with an M18 - 1.5 thread, and its electrodes are made of a gas-permeable platinum layer.
What does the coating on this oxygen sensor's electrodes do?
The coating protects the electrode surfaces from contamination and erosion caused by combustion residue and particulates in the exhaust gases.
Is this oxygen sensor upstream or downstream?
The catalog lists upstream left, upstream right, downstream left, upstream rear, upstream front and downstream front. This listing is one sensor, and each application takes one.
