Walker 350-34066 Oxygen Sensor - Upstream

Overview of Walker 350-34066 Oxygen Sensor

The Walker 350-34066 oxygen sensor is designed specifically for select Ford and Mercury vehicles, including the Contour, Cougar, Courier, and Mystique models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Ford and Mercury Contour, Cougar, Courier, and Mystique
• 24.33-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 27.87 inches for proper installation

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 line emphasizes precise fitment and quality construction, ensuring compatibility and durability for emission sensors like the 350-34066.

Product Description and Specifications

The Walker 350-34066 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 24.33-inch wiring harness with four 20-gauge wires, facilitating a stable electrical connection. Its radiused polygon male connector ensures a secure fit with the vehicle’s wiring harness. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. With an overall length of 27.87 inches, this sensor is designed to fit precisely in the exhaust path of compatible Ford and Mercury models.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces engine misfires and rough idling
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate sensor data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-34066 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 radiused polygon male connector aligns correctly with the vehicle’s connector for a secure fit. Thread the sensor carefully into the exhaust port 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 oxygen sensors undergo rigorous testing to meet OEM specifications for fit, form, and function. The 350-34066 part number is manufactured to provide consistent performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to ensure customer confidence in their emission control components.