Walker 350-64057 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 350-64057 Oxygen Sensor for Toyota Vehicles

The Walker 350-64057 oxygen sensor is designed specifically for Toyota 4Runner, Tacoma, and Tundra models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Toyota 4Runner, Tacoma, and Tundra
• 9.76-inch wiring harness length with 20 gauge wire
• Four-wire configuration with radiused polygon male connector
• Flange mount with 18.0 mm thread diameter
• Overall length of 13.31 inches for precise installation

Detailed Features and Specifications

This oxygen sensor from Walker Products Aftermarket is engineered with a heated sensor element to provide quicker warm-up and more accurate readings under various operating conditions. The four-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable data transmission. The wiring harness length of 9.76 inches and 20 gauge wire size support durability and ease of routing within the engine bay. The radiused polygon male connector is designed for a secure and specific fit, reducing the risk of connection issues. The flange mount style with an 18.0 mm thread diameter allows for straightforward installation in the exhaust system of compatible Toyota models.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct fit solution for Toyota 4Runner, Tacoma, and Tundra vehicles. The product line emphasizes quality materials and precise engineering to maintain vehicle emissions compliance and engine efficiency.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for improved fuel economy
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper air-fuel mixture readings
• Prevents engine performance problems caused by faulty sensors
• Supports compliance with emissions testing requirements

Installation Notes and Tips

When installing the Walker 350-64057 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. The flange mount and thread diameter are designed for a direct replacement, so no modifications should be necessary. Verify the connector matches the vehicle’s harness before installation to ensure compatibility.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. While specific warranty details for part number 350-64057 are not provided here, Walker typically offers coverage against defects in materials and workmanship. It is recommended to consult the product packaging or official documentation for exact warranty terms.