Walker 250-21065 Oxygen Sensor - Downstream

Overview of Walker 250-21065 Oxygen Sensor for Lexus GS300

The Walker 250-21065 oxygen sensor is designed specifically for the Lexus GS300, ensuring precise emission control and optimal engine performance. This non-heated oxygen sensor features a flange mount and a radiused polygon male connector for secure installation.

• Wiring harness length: 11.34 inches
• Wire gauge measurement: 20 gauge
• Sensor type: Non heated
• Wire quantity: 1
• Connector shape: Radiused polygon
• Connector gender: Male
• Thread diameter: 18.0 mm
• Overall length: 14.88 inches
• Mounting type: Flange mount

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures compatibility and reliable performance for specific vehicle applications, such as the Lexus GS300.

Product Description and Specifications

The Walker 250-21065 oxygen sensor is a specific fit sensor engineered for the Lexus GS300. It features a non-heated sensor element, which is suitable for applications where heated sensors are not required. The sensor includes a single 20-gauge wire with an 11.34-inch wiring harness, allowing for proper connection and signal transmission. The radiused polygon male connector ensures a secure and precise fit, while the 18.0 mm thread diameter and flange mount provide stable installation in the exhaust system. The overall length of 14.88 inches accommodates the sensor’s placement within the vehicle’s emission control system.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by monitoring oxygen levels in exhaust gases
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers related to oxygen sensor faults
• Supports optimal fuel economy by providing accurate sensor data

Installation Notes and Tips

When installing the Walker 250-21065 oxygen sensor on a Lexus GS300, ensure the flange mount is securely fastened to prevent exhaust leaks. Verify the connector’s radiused polygon shape and male gender match the vehicle’s wiring harness for proper connection. Use appropriate tools to avoid damaging the 18.0 mm threaded sensor during installation. It is recommended to inspect the wiring harness length and routing to avoid interference with other engine components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. This part number 250-21065 undergoes rigorous testing to comply with OEM specifications for the Lexus GS300. Warranty coverage details should be confirmed with the product documentation or supplier.