Walker 350-34120 Oxygen Sensor - Downstream Right

Overview of Walker 350-34120 Oxygen Sensor for Audi A4 and A6

The Walker 350-34120 oxygen sensor is designed specifically for Audi A4, A4 Quattro, A6, and A6 Quattro models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Audi A4 and A6 series vehicles
• 36.93-inch wiring harness length for flexible installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 40.47 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34120) is engineered to meet the exact specifications required by Audi A4 and A6 models, including their Quattro variants. The heated sensor design allows the unit to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Featuring a 4-wire setup with 20 gauge wiring, it provides reliable signal transmission and durability. The 36.93-inch wiring harness length offers ample reach for installation without modification. The radiused polygon male connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter guarantees compatibility with factory mounting points.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for engine efficiency
• Reduces harmful emissions by accurate exhaust gas monitoring
• Prevents engine performance issues related to faulty oxygen sensors
• Resolves check engine light triggers related to sensor failure
• Supports smooth operation of Audi A4 and A6 Quattro models

Installation Notes and Tips

When installing the Walker 350-34120 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector shape and gender match the vehicle’s harness for a secure connection. Thread the sensor carefully into the exhaust manifold or pipe to prevent cross-threading. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products Aftermarket parts are manufactured to meet or exceed OEM standards. The 350-34120 oxygen sensor undergoes rigorous testing to ensure durability and performance in emission control systems. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s reliability for Audi A4 and A6 applications.