Walker 250-54051 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Products OE Oxygen Sensor 250-54051

The Walker Products OE Oxygen Sensor 250-54051 is designed specifically for Toyota 4Runner, Tacoma, and Tundra 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 with 4-wire design for reliable operation
• Specific fit for Toyota 4Runner, Tacoma, and Tundra vehicles
• 9.76-inch wiring harness length with 20-gauge wire for durability
• Radiused polygon male connector for secure and precise connection
• Flange mount with 18.0 mm thread diameter for proper installation
• Overall length of 13.31 inches to accommodate factory specifications

Detailed Product Features and Specifications

The Walker Products OE line focuses on providing original equipment quality parts that meet or exceed OEM standards. The 250-54051 oxygen sensor is a heated sensor type, which allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. It features a 4-wire configuration, including two wires for the heater circuit and two for the sensor signal, ensuring accurate and stable readings.

The wiring harness length of 9.76 inches and 20-gauge wire gauge measurement provide durability and flexibility during installation. The sensor’s radiused polygon male connector ensures a secure fit with the vehicle’s wiring harness, reducing the risk of connection issues. The flange mount design with an 18.0 mm thread diameter matches factory mounting points on compatible Toyota models, including the 4Runner, Tacoma, and Tundra.

Compatible Toyota Models and Applications

This oxygen sensor is specifically engineered for use with Toyota 4Runner, Tacoma, and Tundra vehicles. It is designed to replace the factory oxygen sensor in these models, maintaining proper emissions control and engine performance.

• Helps resolve issues related to poor fuel economy
• Addresses rough idling or engine hesitation
• Corrects check engine light triggers related to oxygen sensor faults
• Improves overall emissions system function
• Supports optimal engine management system operation

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-54051, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the vehicle’s harness before installation. The flange mount and thread diameter are designed to fit factory mounting points, so no modifications should be necessary.

Quality Assurance and Warranty

Walker Products OE parts are manufactured to meet original equipment specifications, ensuring reliable performance and durability. The 250-54051 oxygen sensor undergoes rigorous quality control testing to comply with emissions standards. Please refer to Walker’s warranty policy for specific coverage details.