Walker Products 350-34177 oxygen sensor for the 2004-2006 Chevrolet Epica 6-cylinder 2.5L and other vehicles measures the amount of oxygen in the exhaust gas. It is a direct-fit downstream sensor, and its oxygen reading shows how efficiently the engine is burning fuel.
- Narrow-band design with 4 wires
- Electrodes made of a gas-permeable platinum layer
- Electrode coating resists contamination and erosion from combustion residue and particulates in the exhaust
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Exhaust gas monitoring that helps reduce pollutants
Quick facts
- Part: Walker Products 350-34177 oxygen sensor
- Fits: 2004-2006 Chevrolet Epica 6-cylinder 2.5L and other vehicles
- Position: Downstream
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption or a lit malfunction indicator light, though other faults produce these too. With the engine off and cool, look over the sensor's wiring harness and connector for physical damage before you replace the sensor.
Fits
This downstream sensor fits the 2004-2006 Chevrolet Epica 6-cylinder 2.5L, which takes two, and is also an oxygen sensor for the 2004-2005 Suzuki Verona 6-cylinder 2.5L, which takes one. This listing is one sensor.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 2 for the 2004-2006 Chevrolet Epica 6-cylinder 2.5L, 1 for the 2004-2005 Suzuki Verona 6-cylinder 2.5L
Build and materials
- Type: Narrow-band, 4 wires
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this Walker Products oxygen sensor an upstream or downstream sensor?
It is a downstream sensor. Walker Products 350-34177 is listed in the downstream position.
Will the 350-34177 fit a 2004-2006 Chevrolet Epica 6-cylinder 2.5L?
Yes. Walker Products 350-34177 fits the 2004-2006 Chevrolet Epica 6-cylinder 2.5L, which takes two sensors; this listing is one.
What does the platinum layer on this oxygen sensor do?
The electrodes are made of a gas-permeable platinum layer. Its coating resists contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust.
How can I tell if a narrow-band oxygen sensor is going bad?
Rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can be signs. Newer vehicles store fault codes, and a shop can read them.
Does a narrow-band oxygen sensor affect fuel economy?
It measures oxygen in the exhaust so the air-fuel mixture can be fine-tuned for fuel economy. A worn sensor can raise fuel consumption, but other faults can too.
