Walker 350-31007 Oxygen Sensor - Upstream

Overview of Walker 350-31007 Oxygen Sensor

The Walker 350-31007 oxygen sensor is designed specifically for select Toyota models, including the 4Runner, Camry, Celica, Corolla, Corona, Cressida, Pickup, Starlet, Supra, Tercel, and Van. This non-heated oxygen sensor provides precise emission control sensor functionality with a flange mount design for secure installation.

• Wiring harness length: 11.34 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Specific fit for Toyota models
• Single wire configuration
• Radiused polygon female connector
• Thread diameter: 18.0 mm
• Overall length: 14.88 inches
• Flange mount installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The product line emphasizes precise fitment and quality construction to meet OEM standards, ensuring compatibility and performance for Toyota vehicles requiring emission sensor replacements.

Product Description and Specifications

The Walker 350-31007 oxygen sensor features a non-heated sensor element with a single 20-gauge wire, designed for accurate oxygen level detection in the exhaust system. Its 11.34-inch wiring harness and 14.88-inch overall length allow for proper routing and connection within the engine bay. The radiused polygon female connector ensures a secure electrical connection, while the 18.0 mm thread diameter and flange mount type provide a stable mechanical fit. This sensor is engineered for specific Toyota models, ensuring compatibility and reliable emission control system operation.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Toyota 4Runner, Camry, Celica, and other compatible models
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by providing correct air-fuel mixture feedback
• Prevents check engine light triggers caused by sensor failure
• Supports proper catalytic converter function by maintaining sensor accuracy

Installation Notes and Tips

• Ensure vehicle compatibility with the specific Toyota models listed before installation
• Use appropriate tools to avoid damaging the 18.0 mm threaded sensor during removal or installation
• Verify the radiused polygon female connector matches the vehicle harness for a secure fit
• Inspect wiring harness routing to prevent contact with hot or moving engine components
• Follow manufacturer torque specifications for flange mount installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM standards for emission control components. The 350-31007 part number undergoes rigorous quality checks to ensure durability and reliable performance. Warranty coverage details should be confirmed with the product documentation or supplier.