Walker 350-34078 Oxygen Sensor - Downstream, Upstream, Upstream Front or Upstream Rear

Overview of Walker 350-34078 Oxygen Sensor

The Walker 350-34078 oxygen sensor is designed specifically for select Ford, Lincoln, and Mercury vehicles, including the Escape, Fusion, Milan, and MKZ 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 Escape, Fusion, Lincoln MKZ, and Mercury Milan
• Threaded mounting type with 18.0 mm thread diameter
• 13.31 inches wiring harness length with 4 wires of 20 gauge
• Radiused polygon female connector for secure connection
• Overall length of 16.85 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. Walker Products Aftermarket parts are engineered to meet or exceed OEM specifications, ensuring compatibility and durability for emission sensors like the 350-34078.

Product Features and Specifications

The Walker 350-34078 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It includes a 4-wire design with 20 gauge wiring, which supports both the sensor signal and heater circuit. The radiused polygon female connector ensures a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system of compatible vehicles.

Common Applications and Problem Solving

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring the catalytic converter receives correct data
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by maintaining optimal combustion

Installation Notes and Tips

When installing the Walker 350-34078 oxygen sensor, ensure the vehicle is compatible with this specific fitment for Ford Escape, Fusion, Lincoln MKZ, and Mercury Milan models. Use proper tools to avoid damaging the threaded sensor mount. Verify the connector shape and gender match the vehicle harness to ensure a secure connection. It is recommended to replace the sensor when the engine is cool to prevent burns and to apply anti-seize compound on the threads if not pre-applied.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 350-34078 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.