Walker 350-34080 Oxygen Sensor - Downstream or Downstream Front

Overview of Walker 350-34080 Oxygen Sensor for Mazda Vehicles

The Walker 350-34080 oxygen sensor is designed specifically for select Mazda models including the MPV, Protege, and Protege5. 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 Mazda MPV, Protege, and Protege5
• 23.54-inch wiring harness length for convenient installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 27.09 inches for proper fitment

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed OEM specifications. This oxygen sensor from the Walker Products Aftermarket range is built to provide consistent performance and durability, making it a suitable choice for maintaining the emission systems of Mazda MPV, Protege, and Protege5 models.

Product Description and Technical Specifications

This oxygen sensor (part number 350-34080) features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 23.54-inch wiring harness with 20 gauge wires and a total of four wires, ensuring accurate data transmission to the vehicle’s engine control unit. The radiused polygon female connector provides a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter ensures proper installation and sealing. With an overall length of 27.09 inches, this sensor is designed to fit the exhaust system layout of the specified Mazda models.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires and rough idling
• Prevents increased emissions and failed emissions tests
• Addresses poor fuel economy caused by faulty oxygen sensors
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate tools for threaded sensor removal and installation
• Verify connector type matches the vehicle harness for compatibility
• Do not over-tighten the sensor to prevent thread damage
• Check wiring harness routing to avoid contact with hot exhaust components

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. While specific warranty details for part number 350-34080 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance in Mazda MPV, Protege, and Protege5 vehicles.