Walker 350-34993 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 350-34993 Oxygen Sensor

The Walker 350-34993 oxygen sensor is designed specifically for Ford Expedition and Lincoln Navigator models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Ford Expedition and Lincoln Navigator
• 13.18-inch wiring harness length for precise installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 15.74 inches for proper fitment

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor from the Walker Products Aftermarket range is engineered to deliver consistent performance and durability, ensuring compatibility and reliable operation in Ford Expedition and Lincoln Navigator vehicles.

Product Features and Specifications

This oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 13.18-inch wiring harness length and 20 gauge wire size with four wires support accurate data transmission to the engine control unit. The radiused polygon female connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter provides straightforward installation and stable positioning within the exhaust system.

Common Applications and Problem Resolution

• Helps correct engine running issues caused by faulty oxygen sensors
• Reduces excessive emissions and improves fuel economy
• Prevents check engine light triggers related to sensor failure
• Supports proper air-fuel mixture adjustments in Ford Expedition and Lincoln Navigator
• Addresses rough idling and poor acceleration symptoms

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector type matches the vehicle’s harness for a secure connection. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications.

Quality Assurance and Warranty

Walker oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-34993 part number undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.