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Walker 350-34470 Oxygen Sensor - Downstream
| Brand | Walker 350-34470 |
|---|---|
| Position | Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 26.69 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 23.15 |
| Product line | Walker Products Aftermarket |
| Fits | Mazda · 3 vehicles |
OE replacement. Engineered as an original-equipment-style oxygen sensor.
Heated sensor. Helps deliver the diagnostic feedback the ECU requires.
Threaded mount. Installs with a secure, threaded connection.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker 350-34470 Oxygen Sensor for Mazda 5
Walker Products 350-34470 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Mazda 5 applications. It is engineered for downstream bank 1 sensor 2 use on 2008-2010 Mazda 5 models, helping the ECU receive the feedback it expects from the exhaust system.
Key Features
- Heated oxygen sensor design for faster operating response
- Specific fit for the intended mounting position
- 4-wire configuration with a male connector
- Threaded mounting with 18.0 mm thread diameter
- 23.15 in. wiring harness length and 26.69 in. overall length
- Radiused polygon connector shape for application-specific fitment
Product Details
Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered as OE replacement parts for worldwide vehicle applications. Part number 350-34470 is built for the downstream position on bank 1 sensor 2 in select Mazda 5 models, making it a direct-fit choice for restoring exhaust feedback on the 2008-2010 Mazda 5. If the original sensor is aging or damaged, the ECU may log fault codes and the vehicle can show drivability or emissions-related symptoms. This Walker 350-34470 oxygen sensor is designed around the specified application, wiring, and connector layout to match the vehicle’s original sensor location.
This part cross-references no listed alternate part numbers for the same application.
What It Is Used For
- Clearing oxygen sensor-related fault codes on a Mazda 5
- Restoring downstream exhaust feedback to the ECU
- Addressing poor fuel economy caused by a failing sensor
- Reducing elevated exhaust emissions from a worn sensor
- Correcting MIL illumination tied to sensor performance
Installation Notes and Tips
Fits 2008-2010 Mazda 5, downstream bank 1 sensor 2. Before installation, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion, since damaged wiring can shorten sensor life and affect signal quality. Confirm the threaded mounting location and connector orientation match the original part before tightening.
Quality Assurance
Walker Products is an Automotive ISO9001/TS 16949 certified manufacturer with a long history in engine management and fuel system components. The 350-34470 is produced for the specified vehicle application and position to provide the diagnostic feedback expected by the ECU.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Mazda | 5 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2009 | Mazda | 5 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Mazda | 5 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
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