Walker 250-25027 Oxygen Sensor - Upstream

Overview of Walker 250-25027 Oxygen Sensor for Audi S6

The Walker 250-25027 oxygen sensor is designed specifically for the Audi S6, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

• Heated oxygen sensor type for faster response times
• Specific fit for Audi S6 models
• 33.98-inch wiring harness length for flexible installation
• 20 gauge wire measurement with 5 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 37.52 inches for proper fitment

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on delivering original equipment quality parts. Walker Products OE components are engineered to meet or exceed OEM specifications, ensuring compatibility and durability for emission control systems. The 250-25027 sensor maintains the standards expected for precise sensor performance in the Audi S6.

Product Features and Specifications

The Walker 250-25027 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission control accuracy. The 5-wire design supports both sensor heating and signal output, while the 20 gauge wiring ensures durability and resistance to electrical interference. The radiused polygon male connector provides a secure and reliable connection to the vehicle’s wiring harness. Threaded mounting with an 18.0 mm diameter allows for straightforward installation and a tight seal.

Common Applications and Problem Resolution

• Helps resolve poor fuel economy caused by inaccurate oxygen readings
• Addresses rough engine idle and hesitation issues
• Reduces increased emissions due to faulty sensor data
• Prevents check engine light triggers related to oxygen sensor faults
• Supports proper catalytic converter function by providing accurate air-fuel mixture data

Installation Notes and Tips

When installing the Walker 250-25027 oxygen sensor on an Audi S6, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Connect the radiused polygon male connector firmly to the vehicle’s wiring harness to avoid signal interruptions. Verify wiring harness length and routing to prevent strain or damage during operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and longevity. The 250-25027 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or distributor, reflecting Walker’s commitment to quality and customer satisfaction.