Walker 350-35005 Oxygen Sensor - Upstream

Overview of Walker 350-35005 Oxygen Sensor for Audi A8 Quattro and S8

The Walker 350-35005 oxygen sensor is designed specifically for Audi A8 Quattro and S8 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated sensor type for faster response times
• Specific fit for Audi A8 Quattro and S8
• 18.23-inch wiring harness length for proper 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 21.77 inches for correct positioning

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-35005) is engineered to meet the exact specifications of Audi A8 Quattro and S8 vehicles. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, which helps reduce emissions during cold starts. The sensor includes a 5-wire configuration with 20 gauge wiring, ensuring accurate and stable signal transmission to the engine control unit. The wiring harness length of 18.23 inches and overall length of 21.77 inches are designed to fit precisely within the exhaust system layout of the specified Audi models. The radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter facilitate straightforward installation and secure attachment.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution tailored for specific vehicle applications like the Audi A8 Quattro and S8. The product line emphasizes compatibility, durability, and performance to support emission compliance and engine efficiency.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Audi A8 Quattro and S8
• Helps resolve rough idling and poor fuel economy caused by inaccurate oxygen readings
• Reduces emissions by ensuring proper air-fuel mixture monitoring
• Prevents check engine light triggers related to oxygen sensor faults
• Supports smooth engine performance and drivability

Installation Notes and Tips

When installing the Walker 350-35005 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. The radiused polygon male connector should align securely with the vehicle’s wiring harness. Thread the sensor carefully into the exhaust port using the 18.0 mm thread diameter to prevent cross-threading. Verify all connections before starting the engine.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for emission control components. While specific warranty details for part number 350-35005 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance in Audi A8 Quattro and S8 vehicles.