Walker 250-54008 Oxygen Sensor - Upstream, Upstream Left or Upstream Rear

Overview of Walker 250-54008 Oxygen Sensor

The Walker 250-54008 oxygen sensor is designed specifically for select Subaru and Toyota models, including the Camry, Highlander, Legacy, Outback, Sienna, and Solara. This heated oxygen sensor provides accurate emissions control data to help maintain engine performance and fuel efficiency.

• Heated sensor type for faster response times
• Specific fit for Subaru and Toyota vehicles
• 7.01-inch wiring harness length for optimal 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 10.55 inches for proper fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-54008) is engineered to meet the exact specifications of your vehicle’s original equipment. The heated sensor design allows it to reach operating temperature quickly, improving emissions monitoring and engine control. With a 7.01-inch wiring harness and 20 gauge wires, this sensor ensures consistent electrical performance. The radiused polygon male connector and threaded mounting type with an 18.0 mm diameter provide a secure and precise fit, reducing the risk of leaks or connection issues. The overall length of 10.55 inches is tailored for the specific fitment requirements of Subaru and Toyota models such as the Camry, Highlander, Legacy, Outback, Sienna, and Solara.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering direct replacement parts that meet or exceed original equipment standards. This oxygen sensor is part of that line, ensuring compatibility and reliable performance for emission control systems. Walker Products OE parts are designed to integrate seamlessly with your vehicle’s existing systems, providing a dependable solution for maintaining emissions compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and engine hesitation
• Reduces emissions and prevents check engine light triggers
• Improves fuel economy by ensuring efficient combustion
• Prevents failed emissions tests related to sensor malfunction

Installation Notes and Tips

When installing the Walker 250-54008 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector matches the radiused polygon male shape for a secure connection. Follow vehicle-specific torque specifications to avoid damage. This sensor is designed for direct replacement on compatible Subaru and Toyota models.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain your vehicle’s emissions system integrity and supports compliance with environmental regulations.