Walker 350-34057 Oxygen Sensor - Downstream

Overview of Walker 350-34057 Oxygen Sensor for Mazda Vehicles

The Walker 350-34057 oxygen sensor is designed specifically for Mazda MPV and RX-8 models, ensuring precise emission control and engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for Mazda MPV and RX-8 models
• 15.28-inch wiring harness length with 4 wires
• 20 gauge wire measurement for durability
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for reliable connection
• Overall length of 18.82 inches for proper fitment

Detailed Product Features and Specifications

This Walker Products Aftermarket oxygen sensor (part number 350-34057) is engineered to meet the exact specifications required by Mazda MPV and RX-8 vehicles. The sensor type is heated, which helps it reach operating temperature quickly for improved emission control. It includes a 15.28-inch wiring harness with four 20-gauge wires, providing a robust electrical connection. The connector is a radiused polygon shape with a male gender, designed to fit securely with the vehicle’s wiring harness. The sensor mounts via a threaded connection with an 18.0 mm thread diameter, ensuring a tight and leak-free installation. The overall length of 18.82 inches supports proper placement within the exhaust system.

Walker Products Aftermarket Brand Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution for specific Mazda models. The product line emphasizes compatibility and durability, making it suitable for maintaining factory-level emission performance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Mazda MPV and RX-8 exhaust systems
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by providing precise air-fuel mixture feedback
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

When installing the Walker 350-34057 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector shape and gender match the vehicle’s harness before installation. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications. After installation, clear any diagnostic trouble codes to reset the engine control unit.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for emission control components. While specific warranty details for part number 350-34057 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing oxygen sensors on Mazda MPV and RX-8 vehicles.