Walker 350-64059 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor for Mazda RX-8

The Walker 350-64059 oxygen sensor is designed specifically for the Mazda RX-8, providing precise emission control through accurate air-fuel mixture monitoring. This heated oxygen sensor ensures optimal engine performance and reduced emissions by maintaining proper sensor temperature.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fitment for Mazda RX-8 models
• Threaded mounting type with 18.0 mm thread diameter
• 21.18 inches wiring harness length and 24.72 inches overall length
• Radiused polygon male connector for secure electrical connection
• 20 gauge wire for durability and signal integrity

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-64059) is engineered with a heated sensor element to quickly reach operating temperature, improving response time and reducing emissions during cold starts. The 4-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring consistent performance. The sensor’s threaded mounting type with an 18.0 mm diameter allows for direct replacement in the exhaust system of the Mazda RX-8. The wiring harness length of 21.18 inches and overall length of 24.72 inches provide sufficient reach for installation without excess slack. The radiused polygon male connector ensures a secure and precise fit with the vehicle’s wiring harness, minimizing the risk of connection issues.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on delivering reliable emission control components designed to meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct-fit solution tailored for specific vehicle applications like the Mazda RX-8. Walker’s aftermarket sensors are engineered to maintain emission standards and support engine management systems effectively.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Mazda RX-8
• Helps resolve rough idling caused by incorrect air-fuel mixture readings
• Reduces increased emissions and failed emissions tests
• Improves fuel efficiency by providing accurate oxygen level data
• Prevents engine performance issues related to sensor malfunction

Installation Notes and Tips

When installing the Walker 350-64059 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector shape and gender match the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. This part is manufactured to precise specifications for the Mazda RX-8 application. While specific warranty details are not provided here, Walker Products Aftermarket parts typically come with a limited warranty against defects in materials and workmanship.