Walker 250-24669 Oxygen Sensor - Downstream Right

Overview of Walker 250-24669 Oxygen Sensor for Audi Vehicles

The Walker 250-24669 oxygen sensor is designed specifically for select Audi models, including the A4, A4 Quattro, A6, and A6 Quattro. 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 configuration
• Specific fit for Audi A4, A4 Quattro, A6, and A6 Quattro
• 36.93-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 40.47 inches for proper fitment

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24669) features a heated sensor type that allows for faster warm-up times and improved sensor response. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring accurate and stable readings. The wiring harness length of 36.93 inches provides sufficient reach for installation in the exhaust system of compatible Audi models. The sensor mounts via a threaded connection with an 18.0 mm diameter, a common size for OEM oxygen sensors. The radiused polygon male connector ensures a secure and precise fit with the vehicle’s wiring harness, reducing the risk of connection issues. The wire gauge of 20 supports consistent electrical performance, while the overall length of 40.47 inches accommodates proper routing within the engine bay.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct-fit emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of the Walker Products OE series, which emphasizes quality, durability, and precise fitment for specific vehicle applications. Using a Walker Products OE sensor helps maintain factory-level emissions performance and engine efficiency in Audi A4 and A6 models.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Audi A4, A4 Quattro, A6, and A6 Quattro
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Addresses increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data to the engine control unit
• Reduces rough idling and hesitation caused by sensor malfunction

Installation Notes and Tips

When installing the Walker 250-24669 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. Verify the connector shape and gender match the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The 250-24669 sensor is manufactured to provide reliable operation under demanding conditions. While specific warranty details may vary, Walker Products OE parts typically include a limited warranty against defects in materials and workmanship, supporting long-term vehicle emissions compliance.