Walker 350-64027 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor 350-64027 for Subaru

The Walker 350-64027 oxygen sensor is designed specifically for Subaru Impreza, WRX, and WRX STI 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 Impreza, WRX, and WRX STI
• 29.06-inch wiring harness length for flexible installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 32.6 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-64027) is engineered to meet the exact specifications of Subaru Impreza, WRX, and WRX STI vehicles. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, improving emissions control during cold starts. The sensor includes a 29.06-inch wiring harness with 20 gauge wires arranged in a 4-wire configuration, which supports both the sensor signal and heater circuit. The radiused polygon male connector ensures a reliable and secure electrical connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, designed to provide precise sensor readings and durability for Subaru vehicles. The product line emphasizes compatibility and quality to support proper engine management and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Subaru Impreza, WRX, and WRX STI
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by ensuring proper sensor feedback
• Reduces emissions by maintaining correct sensor operation
• Eliminates rough idling or poor engine performance caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-64027 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 is fully seated to prevent electrical issues. Thread the sensor carefully into the exhaust port to avoid cross-threading. Verify the wiring harness length of 29.06 inches is sufficient for your installation location.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-64027 sensor undergoes rigorous testing to ensure reliable operation in Subaru Impreza, WRX, and WRX STI models. Warranty coverage details should be confirmed with the product documentation or supplier.