Walker 350-34337 Oxygen Sensor - Downstream

Overview of Walker 350-34337 Oxygen Sensor for Subaru Vehicles

The Walker 350-34337 oxygen sensor is designed specifically for Subaru Forester and Impreza models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Heated oxygen sensor type for faster response times
• Specific fit for Subaru Forester and Impreza models
• 15.87-inch wiring harness length for proper installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 19.41 inches for compatibility with factory locations

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The line emphasizes precise fitment and reliable performance, making it suitable for Subaru Forester and Impreza owners seeking a direct replacement sensor that integrates seamlessly with their vehicle’s existing systems.

Technical Description and Attributes

The Walker 350-34337 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency shortly after engine start. The sensor includes a 15.87-inch wiring harness with 20 gauge wires and four conductors, ensuring stable electrical signals. Its radiused polygon male connector is designed for a secure and corrosion-resistant connection. The sensor mounts via an 18.0 mm threaded fitting, matching factory specifications for Subaru Forester and Impreza models. The overall length of 19.41 inches accommodates proper placement within the exhaust system.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light codes related to oxygen sensor failure
• Improves fuel efficiency by providing correct emissions data
• Reduces harmful exhaust emissions by maintaining sensor responsiveness
• Prevents engine performance issues caused by faulty sensor readings

Installation Notes and Tips

Installation requires removal of the old oxygen sensor from the exhaust manifold or pipe. The threaded mounting type with an 18.0 mm diameter allows for standard oxygen sensor socket use. Ensure the radiused polygon male connector is fully seated and locked to avoid signal interruptions. Handle the sensor wiring carefully to prevent damage to the 20 gauge wires. Verify compatibility with Subaru Forester and Impreza models before installation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-34337 part number undergoes rigorous testing to ensure reliable operation under typical driving conditions. Warranty coverage details should be confirmed with the product documentation or supplier.