Walker 350-35073 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor 350-35073 for Audi A8 Quattro

The Walker 350-35073 oxygen sensor is designed specifically for the Audi A8 Quattro, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for Audi A8 Quattro models
• 72.36 inches wiring harness length with 5 wires of 20 gauge
• Thread diameter of 18.0 mm with threaded mounting
• Radiused polygon male connector for reliable connection
• Overall length of 75.91 inches for proper fitment

Detailed Features and Specifications

This Walker Products Aftermarket oxygen sensor (part number 350-35073) is engineered with a 5-wire configuration and 20 gauge wire measurement to provide stable and responsive sensor output. The heated sensor type allows for faster warm-up times, improving fuel efficiency and reducing emissions shortly after engine start. The sensor’s threaded mounting and 18.0 mm thread diameter ensure a secure and precise fit in the exhaust system of the Audi A8 Quattro. The radiused polygon male connector is designed to match factory wiring harnesses, facilitating straightforward installation without modifications.

Walker Products Aftermarket Line Information

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

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel mixture control
• Resolves check engine light issues related to oxygen sensor faults
• Helps reduce emissions by providing precise exhaust gas readings
• Prevents poor engine performance caused by faulty sensor signals
• Supports efficient catalytic converter operation by maintaining correct air-fuel ratios

Installation Notes and Tips

When installing the Walker 350-35073 oxygen sensor on an Audi A8 Quattro, ensure the sensor is threaded securely with the correct torque to avoid exhaust leaks. Verify the connector matches the factory wiring harness to prevent electrical issues. It is recommended to inspect the wiring harness for damage and replace any worn components to maintain sensor functionality. Use anti-seize compound on the threads if specified by the vehicle manufacturer to facilitate future removal.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for emission control components. While specific warranty details for part number 350-35073 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable operation throughout the sensor’s service life.