OE Quality
60-Day Returns

Walker 250-241089 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
Overview of Walker Products OE Oxygen Sensor 250-241089
The Walker Products OE Oxygen Sensor 250-241089 is designed for precise emission control in select Audi, Porsche, and Volkswagen vehicles. This heated oxygen sensor features a specific fit and advanced wiring to ensure accurate exhaust gas monitoring and optimal engine performance.
- Heated oxygen sensor with 4-wire configuration
- Specific fit for Audi, Porsche, and Volkswagen models
- Wiring harness length: 8.46 inches
- Wire gauge measurement: 20 gauge
- Radiused polygon male connector for secure connection
- Threaded mounting type with 18.0 mm thread diameter
- Overall length of 11.81 inches for proper installation
Detailed Product Features and Specifications
This oxygen sensor from Walker Products OE is engineered with a heated sensor type to provide faster response times and improved fuel efficiency. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation under various engine conditions. The wiring harness length of 8.46 inches and 20 gauge wire measurement support durability and ease of installation. The radiused polygon male connector offers a secure and precise fit, reducing the risk of connection issues. With an 18.0 mm threaded mounting type and an overall length of 11.81 inches, this sensor is tailored for specific vehicle applications.
Walker Products OE Brand Line Information
Walker Products OE focuses on delivering original equipment quality emission control components. This product line emphasizes exact fitment and reliable performance, matching or exceeding factory specifications. The 250-241089 oxygen sensor is part of this line, ensuring compatibility and durability for Audi, Porsche, and Volkswagen vehicles requiring precise emission sensor replacements.
Compatible Vehicles and Common Applications
- Audi A1, A6, A6 Quattro, A7 Quattro, A8 Quattro
- Porsche 911
- Volkswagen Q7, Vento
This oxygen sensor is designed to maintain proper air-fuel mixture and reduce harmful emissions in these specific models, supporting emission compliance and engine efficiency.
Common Issues Addressed by This Oxygen Sensor
- Check engine light triggered by faulty oxygen sensor readings
- Poor fuel economy due to incorrect air-fuel mixture
- Increased emissions and failed emissions tests
- Engine performance problems such as rough idling or hesitation
- Heater circuit failure causing delayed sensor response
Installation Notes and Tips
Ensure the vehicle is cool before installation to avoid burns. Use the correct tools to remove the old sensor and install the new one with the 18.0 mm threaded mounting. Verify the radiused polygon male connector is securely connected to prevent signal loss. Follow vehicle-specific torque specifications to avoid damage. It is recommended to inspect wiring harnesses for damage during replacement.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet original equipment standards, providing reliable performance and durability. The 250-241089 part number undergoes rigorous quality control to ensure proper fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Walker |
|---|---|
| Part Number | 250-241089 |
| Position | Walker Products OE, Downstream Left |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 11.81 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 8.46 |
This part fits 63 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2024 | Porsche | 911 | 3.0L | H6 | Downstream Right | OE Base Sensor | ||
| 2023 | Porsche | 911 | 3.0L | H6 | Downstream Right | OE Base Sensor | ||
| 2022 | Porsche | 911 | 3.0L | H6 | Downstream Right | OE Base Sensor | ||
| 2020 | Porsche | 911 | 3.0L | H6 | Upstream Right | OE Base Sensor | ||
| 2019 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2019 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2019 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2019 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2018 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2018 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2018 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2018 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2018 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2018 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2018 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2018 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2018 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2018 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2018 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2018 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2018 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2018 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2018 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2018 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2017 | Audi | A6 Quattro | Competition | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE |
| 2017 | Audi | A6 Quattro | Competition | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE |
| 2017 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2017 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2017 | Audi | A6 Quattro | Competition | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE |
| 2017 | Audi | A6 Quattro | Competition | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE |
| 2017 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2017 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2017 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2017 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2017 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2017 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2017 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2017 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2017 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2017 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2017 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2017 | Audi | Q7 | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2017 | Volkswagen | Vento | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2016 | Audi | A1 | 1.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2016 | Audi | A6 | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2016 | Audi | A6 | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2016 | Audi | A6 | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2016 | Audi | A6 | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2016 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2016 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2016 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2016 | Audi | A6 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2016 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2016 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Downstream left oxygen sensor for bank 2 sensor 2; Walker Products OE | |
| 2016 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2016 | Audi | A7 Quattro | 3.0L | V6 | GAS | Downstream Left | Bank 2, sensor 2 downstream oxygen sensor; Walker Products OE | |
| 2016 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2016 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2016 | Volkswagen | Vento | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2015 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Compatible downstream right Oxygen Sensor with bank 1 sensor 2.; Walker Products OE | |
| 2015 | Audi | A8 Quattro | 3.0L | V6 | GAS | Downstream Right | Downstream oxygen sensor compatible with right bank 2.; Walker Products OE | |
| 2015 | Volkswagen | Vento | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2014 | Volkswagen | Vento | 1.6L | 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.