OE Quality
60-Day Returns

Walker 250-24398 Oxygen Sensor - Center, Downstream or Upstream
Overview of Walker 250-24398 Oxygen Sensor for Acura and Honda
The Walker 250-24398 oxygen sensor is designed specifically for select Acura and Honda models, including the Civic, EL, Element, and Insight. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.
- Heated oxygen sensor with 4-wire design for reliable operation
- Specific fit for Acura and Honda Civic, EL, Element, and Insight models
- 10.16-inch wiring harness length with 20-gauge wire for durability
- Threaded mounting type with 18.0 mm thread diameter for secure installation
- Radiused polygon female connector for proper electrical connection
- Overall sensor length of 13.7 inches for correct fitment
Detailed Features and Specifications
This Walker Products OE oxygen sensor (part number 250-24398) features a heated sensor type that allows for faster warm-up times and improved emissions monitoring. The sensor includes a 10.16-inch wiring harness with 20-gauge wires, providing a balance of flexibility and durability. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The radiused polygon female connector is designed to match factory specifications, preventing connection issues during installation. The threaded mounting type with an 18.0 mm diameter ensures a secure and leak-free fit in the exhaust system.
Walker Products OE Brand Line Information
The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, engineered to provide precise sensor readings and reliable operation for Acura and Honda vehicles. Using Walker Products OE parts helps maintain factory-level emissions compliance and engine efficiency.
Common Applications and Problem Resolution
- Replacement for faulty or failing oxygen sensors in Acura Civic, EL, Element, and Insight
- Resolves issues related to poor fuel economy caused by incorrect air-fuel mixture readings
- Helps fix rough idling or engine hesitation due to sensor malfunction
- Addresses check engine light triggers related to oxygen sensor faults
- Improves emissions system performance to meet regulatory standards
Installation Notes and Tips
When installing the Walker 250-24398 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the radiused polygon female connector matches the vehicle’s wiring harness before connecting. Proper torque should be applied to the 18.0 mm threaded sensor to prevent exhaust leaks. It is recommended to clear any diagnostic trouble codes after installation to reset the engine control module.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This part number 250-24398 undergoes rigorous testing to ensure durability and accurate sensor output. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.
| Brand | Walker |
|---|---|
| Part Number | 250-24398 |
| Position | Walker Products OE, Downstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 13.7 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 10.16 |
This part fits 36 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2011 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2010 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2009 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2008 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2007 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2006 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2006 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Install Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE | |
| 2006 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Bank 1 Sensor 2 Center position; Walker Products OE | |
| 2005 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE | ||
| 2005 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE | ||
| 2005 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; Center; Walker Products OE | ||
| 2005 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2005 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Install Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE | |
| 2005 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Bank 1 Sensor 2 Center position; Walker Products OE | |
| 2004 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE | ||
| 2004 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE | ||
| 2004 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; Center; Walker Products OE | ||
| 2004 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2004 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Install Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE | |
| 2004 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Bank 1 Sensor 2 Center position; Walker Products OE | |
| 2003 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; No Calif-ESV; Center; Walker Products OE | ||
| 2003 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non-Calif-ESV, No Calif-ESV, Center, B1S2; Walker Products OE | ||
| 2003 | Honda | Civic | 1.3L | L4 | ELECTRIC/GAS | Center | Non Calif-ESV; B1S2; Center; Walker Products OE | ||
| 2003 | Honda | Element | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | ||
| 2003 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Install Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE | |
| 2003 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Bank 1 Sensor 2 Center position; Walker Products OE | |
| 2002 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Install Bank 1 Sensor 2 Oxygen Sensor in center position.; Walker Products OE | |
| 2002 | Honda | Insight | Manual | 1.0L | L3 | ELECTRIC/GAS | Center | Bank 1 Sensor 2 Center position; Walker Products OE | |
| 2000 | Acura | EL | Base | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE | |
| 2000 | Acura | EL | Base | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE | |
| 2000 | Honda | Civic | EX | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE | |
| 2000 | Honda | Civic | EX | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE | |
| 1999 | Acura | EL | Base | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE | |
| 1999 | Acura | EL | Base | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE | |
| 1999 | Honda | Civic | EX | 1.6L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE | |
| 1999 | Honda | Civic | EX | 1.6L | L4 | GAS | Upstream | Front oxygen sensor compatible with various 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.