Walker 250-54061 Oxygen Sensor - Upstream

Overview of Walker 250-54061 Oxygen Sensor

The Walker 250-54061 oxygen sensor is designed specifically for select Saab and Subaru models, including the 9-2X, Forester, Impreza, Legacy, and Outback. 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 Saab 9-2X and Subaru Forester, Impreza, Legacy, Outback
• 16.26-inch wiring harness length with 4 wires of 20 gauge
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 19.8 inches for proper installation

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE is engineered with a 16.26-inch wiring harness and four 20-gauge wires, providing reliable electrical connectivity and durability. The heated sensor element allows for quicker activation, improving emissions monitoring shortly after engine start. The threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The radiused polygon female connector is designed for a precise and stable connection, reducing the risk of electrical faults. With an overall length of 19.8 inches, this sensor fits seamlessly into the exhaust system of compatible Saab and Subaru vehicles.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with the original sensor installed in Saab and Subaru models. The OE line emphasizes precise fitment and reliable operation, making it suitable for emission control system repairs and maintenance.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and poor fuel economy caused by faulty sensors
• Supports compliance with emissions testing requirements

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Walker 250-54061 sensor into the exhaust port. Ensure the connector matches the radiused polygon female type for proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness length and routing to prevent strain or interference. It is recommended to check for any exhaust leaks after installation to maintain sensor accuracy.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain emission control system integrity and supports vehicle compliance with environmental regulations.