Walker 350-33073 Oxygen Sensor - Upstream

Overview of Walker 350-33073 Oxygen Sensor for Volkswagen Models

The Walker 350-33073 oxygen sensor is designed specifically for select Volkswagen vehicles including the Cabriolet, Corrado, Fox, Golf, Jetta, and Passat. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Volkswagen Cabriolet, Corrado, Fox, Golf, Jetta, and Passat
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length of 20.39 inches and overall length of 23.94 inches
• Radiused polygon male connector for secure electrical connection
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Product Features and Specifications

The Walker 350-33073 oxygen sensor features a heated sensor type that allows for quicker activation and more consistent readings under various operating conditions. Its 3-wire design supports efficient sensor heating and signal output. The sensor is mounted using a threaded connection with an 18.0 mm diameter, ensuring a secure fit in the exhaust system. The wiring harness length of 20.39 inches and overall length of 23.94 inches provide sufficient reach for installation in Volkswagen models such as the Golf and Passat. The radiused polygon male connector is designed for a precise and stable electrical connection, reducing the risk of signal loss or corrosion. The wire gauge of 20 ensures durability and proper electrical conductivity.

Walker Products Aftermarket Line Information

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. Walker Products Aftermarket parts are engineered to meet or exceed OEM specifications, offering a direct replacement solution for Volkswagen vehicles requiring precise sensor performance and fitment.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved engine efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports compliance with emissions regulations for Volkswagen Cabriolet and other models

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use appropriate tools to avoid damaging the 18.0 mm threaded mounting
• Verify connector compatibility with the radiused polygon male plug
• Check wiring harness length to confirm proper routing without tension
• Follow vehicle-specific service manual instructions for sensor replacement

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. The 350-33073 part number is manufactured to precise specifications for Volkswagen vehicles, ensuring consistent operation. Warranty details are provided by Walker Products Aftermarket and typically cover defects in materials and workmanship under normal use conditions.