Walker 250-24954 Oxygen Sensor - Downstream, Downstream Front or Downstream Left

Overview of Walker 250-24954 Oxygen Sensor

The Walker 250-24954 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A3 Quattro, Passat, and RS7. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Audi and Volkswagen vehicles
• 24.13-inch wiring harness length for flexible installation
• 22 gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 27.68 inches for proper fitment

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. The 250-24954 oxygen sensor from this line is engineered to provide consistent performance and durability, matching the standards required by Audi and Volkswagen for emission control sensors.

Product Features and Specifications

This oxygen sensor features a heated sensor type that allows for faster warm-up times, improving emissions control during cold starts. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring accurate readings. The wiring harness length of 24.13 inches and overall length of 27.68 inches provide ample reach for installation in the specified vehicle models. The radiused polygon male connector ensures a secure and precise fit, while the threaded mounting with an 18.0 mm diameter allows for straightforward replacement.

Compatible Vehicles and Applications

• Compatible with Audi A3 Quattro, A8 Quattro, RS4, RS7, S6, S7, and S8 models
• Fits Volkswagen Eos, Passat, and R32 models
• Designed for emission control sensor replacement in these specific vehicles
• Helps maintain proper engine air-fuel ratio and reduce emissions

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues related to improper sensor data
• Failed emissions tests due to sensor degradation

Installation Notes and Tips

When installing the Walker 250-24954 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector shape and gender match the vehicle harness before installation. Properly route the 24.13-inch wiring harness to avoid contact with hot or moving parts. 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, ensuring reliable performance and durability. While specific warranty details for part number 250-24954 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.