Walker Products 350-34203 oxygen sensor for the 2001-2012 Dodge Atos and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. This Walker Products oxygen sensor is a 4-wire, narrow-band, direct-fit unit.
- Made for its specific application and fitment position, with the diagnostic feedback the ECU requires
- Monitors exhaust gases and reduces pollutants for a cleaner environment
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Electrodes made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 350-34203 oxygen sensor
- Fits: the 2001-2012 Dodge Atos and other vehicles
- Position: Upstream, downstream
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, though other faults can look alike. Before replacing it, look over the sensor, wiring harness and connector for physical damage with the engine off and cool. This listing is one sensor, and the fitment calls for one per application.
Fits
Besides the Atos, this is a direct-fit oxygen sensor for the 2001-2005 Chrysler Sebring 4-cylinder 2.4L and the 2001-2005 Dodge Stratus 4-cylinder 2.4L. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Position: upstream, downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band, 4-wire, direct fit
- 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 the right Stratus oxygen sensor for a 2001-2005 Dodge Stratus 4-cylinder 2.4L?
Yes. Walker Products 350-34203 is listed for the 2001-2005 Dodge Stratus 4-cylinder 2.4L, and it is also listed for the 2001-2012 Dodge Atos.
Is this oxygen sensor narrow-band or wideband?
This oxygen sensor is narrow-band, with 4 wires and an M18 - 1.5 thread, in a direct-fit design.
Is this an upstream or downstream oxygen sensor?
Both positions are listed for Walker Products 350-34203: upstream and downstream.
Can a bad oxygen sensor raise fuel consumption or light the check engine lamp?
Yes, it can. A failed oxygen sensor can bring rough running, higher fuel consumption, more exhaust emissions or a warning light, though other faults can look alike; a shop can read the stored codes.
What does the coating on this sensor's electrodes do?
On this Walker Products 350-34203 sensor, the coating helps prevent contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
