Walker Products 250-24691 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 made for its specific application and fitment position and sends the diagnostic feedback the ECU needs.
- Electrodes made of a gas-permeable platinum layer
- Monitors the air-fuel ratio for combustion efficiency
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Narrow-band, 4-wire design
Quick facts
- Part: Walker Products 250-24691 oxygen sensor
- Fits: 2004-2006 Chevrolet Epica 6-cylinder 2.5L and other vehicles
- Position: Downstream
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. Before you replace the sensor, look over the sensor, its wiring harness and the connector for physical damage, since those signs may have another source.
Fits
This is a direct-fit downstream sensor for the 2004-2006 Chevrolet Epica 6-cylinder 2.5L, and it is also an oxygen sensor for the 2004-2005 Suzuki Verona 6-cylinder 2.5L.
Specifications
Fit and size
- Position: downstream
- Number of wires: 4
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: new
In the box
One oxygen sensor. The 2004-2006 Chevrolet Epica 6-cylinder 2.5L takes two, and the 2004-2005 Suzuki Verona 6-cylinder 2.5L takes one.
Frequently Asked Questions
Will the Walker Products 250-24691 work on the 2004-2006 Chevrolet Epica 6-cylinder 2.5L?
Yes. This downstream Walker Products 250-24691 oxygen sensor fits the 2004-2006 Chevrolet Epica 6-cylinder 2.5L. The 2004-2005 Suzuki Verona 6-cylinder 2.5L takes it too.
Is the Walker Products oxygen sensor a narrow-band or a wideband type?
Narrow-band. This oxygen sensor has a 4-wire design and is a direct-fit part.
Is this oxygen sensor an upstream or a downstream unit?
Downstream. Walker Products 250-24691 is listed for the downstream position, so it is not an upstream sensor.
Can a failing downstream oxygen sensor change fuel economy?
Yes, it can. A failed sensor may push fuel consumption up, and it can also show up as rough running, higher exhaust emissions or a lit malfunction indicator light.
What does the platinum layer on this oxygen sensor do?
The electrodes use a gas-permeable platinum layer, and a coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas.
