Walker 350-34340 Oxygen Sensor - Downstream, Downstream Right or Upstream

Overview of Walker 350-34340 Oxygen Sensor

The Walker 350-34340 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A3, Golf, Jetta, and TT. 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 with 4-wire design for reliable operation
• Specific fit for Audi and Volkswagen models such as A3, Beetle, Golf, Jetta, and TT
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• Radiused polygon male connector for proper electrical connection
• Wiring harness length of 40.87 inches and overall length of 44.41 inches
• Wire gauge measurement of 22 for durability and signal integrity

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The product line emphasizes precise fitment and quality construction, ensuring compatibility and performance for emission sensors like the 350-34340 oxygen sensor.

Product Features and Specifications

The Walker 350-34340 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved sensor response. It includes a 4-wire configuration, which supports both the sensor signal and heater circuit. The sensor’s radiused polygon male connector ensures a secure and correct electrical connection, reducing the risk of miswiring. With a threaded mounting type and an 18.0 mm thread diameter, installation is straightforward and compatible with the designated Audi and Volkswagen models. The wiring harness length of 40.87 inches and overall length of 44.41 inches provide sufficient reach for proper routing within the engine bay.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level readings
• Prevents engine performance issues such as rough idling or hesitation
• Resolves check engine light triggers related to oxygen sensor faults
• Supports compliance with emission regulations on Audi and Volkswagen vehicles

Installation Notes and Tips

When installing the Walker 350-34340 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle’s wiring harness before installation. Properly route the wiring harness to prevent contact with hot or moving engine parts. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 350-34340 part number undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship for a defined period. Consult product documentation or the manufacturer for exact warranty terms.