Walker 350-35056 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Oxygen Sensor 350-35056

The Walker 350-35056 oxygen sensor is designed specifically for select Audi models, including the A6 Quattro, A8 Quattro, R8, and RS4. 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 type for faster response times
• Specific fit for Audi A6 Quattro, A8 Quattro, R8, and RS4
• 64.49 inches wiring harness length for flexible installation
• 20 gauge wire with 5-wire configuration for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 68.03 inches for proper fitment

Detailed Product Description

This Walker oxygen sensor (part number 350-35056) is engineered to meet the specific requirements of Audi performance and luxury models. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for maintaining emissions compliance and fuel efficiency. The sensor includes a 64.49-inch wiring harness with 20 gauge wires arranged in a 5-wire configuration, ensuring consistent electrical performance and durability. The radiused polygon male connector is designed for a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering reliable, vehicle-specific parts that support emissions compliance and engine efficiency. The 350-35056 oxygen sensor is part of this line, providing a direct replacement solution tailored for Audi models requiring precise sensor performance and fitment.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Audi A6 Quattro, A8 Quattro, R8, and RS4
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper combustion control
• Reduces harmful emissions by maintaining correct sensor feedback
• Prevents engine performance issues caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Walker 350-35056 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 18.0 mm threaded mounting requires proper torque to prevent exhaust leaks. Verify the radiused polygon male connector is fully seated to maintain electrical integrity. It is recommended to check for any diagnostic trouble codes after installation to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-35056 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing oxygen sensors on Audi A6 Quattro, A8 Quattro, R8, and RS4 models.