Walker 250-25037 Oxygen Sensor - Downstream, Upstream, Upstream Front or Upstream Left

Overview of Walker Products OE Oxygen Sensor 250-25037

The Walker Products OE Oxygen Sensor 250-25037 is designed specifically for select Audi and Volkswagen models, including the A3, A4, Golf, Jetta, and Passat. This heated oxygen sensor provides accurate emissions control by monitoring exhaust gases to optimize engine performance and fuel efficiency.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for Audi and Volkswagen vehicles
• Threaded mounting type with 18.0 mm thread diameter
• Connector features a radiused polygon shape and male gender
• Wiring harness length of 49.72 inches and overall length of 53.27 inches
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE is engineered with a heated sensor element to ensure rapid activation and accurate readings under various operating conditions. The 5-wire design supports both sensor heating and signal output, improving responsiveness and durability. The sensor’s 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, reducing the risk of signal loss or corrosion. With a wiring harness length of 49.72 inches and an overall length of 53.27 inches, this sensor is designed to fit the specific routing requirements of compatible Audi and Volkswagen models.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed on Audi and Volkswagen vehicles. The OE designation indicates that this sensor is designed to match the exact fit, form, and function required by the vehicle manufacturer.

Compatible Vehicles and Common Applications

• Compatible with Audi A3, A4, A4 Quattro, S8, TT Quattro
• Compatible with Volkswagen Beetle, Eos, Golf, Jetta, Passat, Touareg
• Used to monitor and regulate exhaust emissions
• Helps maintain optimal air-fuel mixture for engine efficiency
• Addresses issues such as poor fuel economy, rough idling, and failed emissions tests

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the new sensor into the exhaust manifold or pipe. Ensure the connector matches the vehicle’s wiring harness to avoid electrical issues. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to facilitate future removal. Verify sensor wiring and connector orientation to prevent damage during installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms related to part number 250-25037.