OE Quality
60-Day Returns

Walker 250-24795 Oxygen Sensor - Downstream
Overview of Walker 250-24795 Oxygen Sensor for Mazda 3
The Walker Products OE 250-24795 oxygen sensor is designed specifically for Mazda 3 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.
- Heated oxygen sensor with 4 wires for accurate readings
- Specific fit for Mazda 3 ensuring compatibility and reliability
- 12.32-inch wiring harness length for flexible installation
- 20 gauge wire measurement for durability and signal integrity
- Thread diameter of 18.0 mm with threaded mounting type
- Radiused polygon female connector for secure connection
- Overall length of 15.87 inches for proper fitment
Detailed Product Description
The Walker Products OE 250-24795 oxygen sensor is engineered to meet the exact specifications of Mazda 3 vehicles. This heated sensor uses four wires to provide fast and accurate oxygen level readings, which are critical for optimal fuel mixture and emissions control. The 12.32-inch wiring harness length allows for convenient routing within the engine bay, while the 20 gauge wire ensures reliable electrical performance. The sensor’s threaded mounting type with an 18.0 mm thread diameter guarantees a secure fit in the exhaust system. Additionally, the radiused polygon female connector is designed to match the factory harness, simplifying installation and reducing the risk of connection issues.
Walker Products OE Brand Line Information
Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, ensuring it matches the fit, form, and function required by Mazda 3 vehicles. The OE line emphasizes precise engineering and durability, making it suitable for emission control systems that demand consistent sensor performance.
Common Applications and Issues Addressed
- Replacement for faulty or failing oxygen sensors in Mazda 3 models
- Helps resolve engine performance issues related to incorrect air-fuel mixture
- Reduces emissions by providing accurate oxygen level data to the engine control unit
- Prevents check engine light triggers caused by sensor malfunctions
- Improves fuel efficiency by maintaining proper combustion control
Installation Notes and Tips
When installing the Walker 250-24795 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector matches the factory harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-24795 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Mazda 3 vehicles.
| Brand | Walker |
|---|---|
| Part Number | 250-24795 |
| Position | Walker Products OE, Downstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 15.87 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 12.32 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2013 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2012 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2011 | Mazda | 3 | 2.3L | L4 | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2010 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2009 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2008 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2007 | Mazda | 3 | 2.3L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.