Walker 350-35071 Oxygen Sensor - Upstream or Upstream Left

Overview of Walker Oxygen Sensor 350-35071

The Walker 350-35071 oxygen sensor is designed specifically for select Ford vehicles, including the Fusion and Transit series. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine control unit.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for Ford Fusion and Transit models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wiring harness length of 17.24 inches and overall length of 20.79 inches
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-35071) is engineered to meet the exact specifications of Ford Fusion and Transit vehicles, including Transit-150, Transit-250, Transit-350, and Transit-350 HD models. The sensor features a heated design that allows it to reach operating temperature quickly, improving emissions control efficiency. It includes a 5-wire setup with a 20-gauge wire measurement, ensuring consistent and accurate signal output. The sensor’s radiused polygon male connector provides a secure and precise fit, reducing the risk of connection issues. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory standards. The wiring harness length of 17.24 inches and overall length of 20.79 inches accommodate proper routing within the engine bay.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a reliable alternative for maintaining emissions compliance and engine efficiency in Ford vehicles. The product line emphasizes fitment accuracy and durability, supporting proper vehicle operation and emissions system performance.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Ford Fusion and Transit models
• Helps resolve rough idling and poor fuel economy caused by inaccurate air-fuel mixture readings
• Addresses check engine light triggers related to oxygen sensor faults
• Improves emissions system performance to meet regulatory standards
• Prevents engine hesitation and stalling linked to sensor malfunction

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Remove the old sensor carefully to avoid damaging the mounting threads. Use anti-seize compound on the sensor threads if recommended by the vehicle manufacturer. Connect the radiused polygon male connector securely to the vehicle harness. Verify proper routing of the wiring harness to prevent contact with hot or moving engine parts.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards and are tested for durability and performance. The 350-35071 oxygen sensor is designed to provide consistent operation under normal driving conditions. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.