Walker Products 350-34304 oxygen sensor for the 2002-2005 Hyundai Sonata V6 2.7L and other vehicles measures the oxygen in exhaust gas to show combustion efficiency. This Walker Products oxygen sensor is a narrow-band, 4-wire unit made for its specific application and fitment position.
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and exhaust particulates
- Measures oxygen levels to help fine-tune the air-fuel mixture and support fuel economy
- Tracks the oxygen content of the exhaust gas to monitor the air-fuel ratio
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34304 oxygen sensor
- Fits: 2002-2005 Hyundai Sonata V6 2.7L and other vehicles
- Position: Downstream right, downstream front, downstream rear
- Condition: New
A failing sensor can leave the engine running poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. Those signs alone do not prove the sensor is at fault, since a vacuum leak can also make an engine run rough. Check the sensor, wiring harness and connector for physical damage too.
Fits
Among the vehicles it fits, it works as an oxygen sensor replacement for the 2002-2005 Hyundai Sonata V6 2.7L, and as an oxygen sensor for the 2005-2009 Hyundai Tucson V6 2.7L and the 2003-2006 Hyundai Santa Fe V6 2.7L. If your car is not named here, look it up by year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Downstream right, downstream front, downstream rear
- Quantity per vehicle: 1
- Number of wires: 4
Build and materials
- Type: Narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor. The 2002-2005 Hyundai Sonata V6 2.7L takes one.
Frequently Asked Questions
Is this O2 sensor right for a 2002-2005 Hyundai Sonata V6 2.7L?
Yes. Walker Products 350-34304 is listed for the 2002-2005 Hyundai Sonata V6 2.7L; if your car is a different one, search its year and engine in the "Vehicles it fits" section.
Is the Walker Products 350-34304 a narrow-band or wideband sensor?
Walker Products 350-34304 is a narrow-band sensor with 4 wires. The listing is for one sensor.
What are the electrodes on this Walker Products oxygen sensor made of?
The electrodes are made of a gas-permeable platinum layer. A coating protects their surfaces from contamination and erosion by combustion residue and exhaust particulates.
How can I inspect a worn oxygen sensor for damage?
With the engine off and cool, look over the sensor, wiring harness and connector for physical damage. Newer vehicles store fault codes in the ECU, and a shop can read them.
Does this oxygen sensor give the ECU diagnostic feedback?
Yes. It reads the oxygen content of the exhaust gas to track the air-fuel ratio, and it provides the diagnostic feedback the ECU needs for its application and fitment position.
