OE Quality
60-Day Returns

Walker 250-24498 Oxygen Sensor - Downstream Left or Downstream Right
Overview of Walker 250-24498 Oxygen Sensor for Land Rover
The Walker 250-24498 oxygen sensor is designed specifically for Land Rover Discovery, Freelander, and Range Rover models. 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 Land Rover Discovery, Freelander, and Range Rover
- Threaded mounting type with 18.0 mm thread diameter
- Connector features a radiused polygon shape with male gender
- Wiring harness length of 20.39 inches and overall length of 23.94 inches
- Wire gauge measurement of 20 for durability and signal integrity
Detailed Product Description
This Walker Products OE oxygen sensor (part number 250-24498) is engineered to meet the exact specifications required by Land Rover vehicles, including Discovery, Freelander, and Range Rover models. The sensor’s heated design allows it to reach operating temperature quickly, improving emissions control during cold starts. Featuring a 4-wire configuration, it provides both the sensor signal and heater power, ensuring consistent performance. The threaded mounting type with an 18.0 mm diameter allows for secure installation in the exhaust system. The connector’s radiused polygon shape and male gender ensure a precise and secure electrical connection. With a wiring harness length of 20.39 inches and an overall length of 23.94 inches, this sensor fits perfectly without modification.
Walker Products OE Brand Line
The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and reliability for Land Rover vehicles. Walker Products OE parts are engineered to provide consistent performance and durability, supporting proper emissions control and engine efficiency.
Common Applications and Issues Addressed
- Restores accurate oxygen sensing for proper air-fuel mixture adjustment
- Helps resolve rough idling and engine hesitation caused by faulty sensors
- Reduces increased emissions and failed emissions tests
- Prevents poor fuel economy linked to incorrect sensor readings
- Eliminates check engine light codes related to oxygen sensor faults
Installation Notes and Tips
Installation requires removal of the old oxygen sensor from the exhaust manifold or pipe. Use an oxygen sensor socket to avoid damage during removal. Ensure the threaded mounting hole is clean before installing the new sensor. Connect the wiring harness securely, matching the radiused polygon connector to the vehicle’s harness. Avoid twisting or stretching the wiring harness to maintain sensor integrity.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards for fit, form, and function. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports vehicle reliability.
| Brand | Walker |
|---|---|
| Part Number | 250-24498 |
| Position | Walker Products OE, Downstream Left |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 23.94 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 20.39 |
This part fits 32 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2005 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2005 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | Land Rover | Discovery | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2004 | Land Rover | Discovery | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2004 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | Land Rover | Discovery | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2003 | Land Rover | Discovery | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2003 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2002 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2002 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2002 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2002 | Land Rover | Freelander | 2.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2002 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2002 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2001 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2001 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2001 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2001 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2000 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2000 | Land Rover | Discovery | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2000 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2000 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2000 | Land Rover | Range Rover | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2000 | Land Rover | Range Rover | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 1999 | Land Rover | Discovery | Series II | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 1999 | Land Rover | Discovery | Series II | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 1999 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 1999 | Land Rover | Range Rover | 4.6L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 1999 | Land Rover | Range Rover | 4.0L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 1999 | Land Rover | Range Rover | 4.0L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; 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.