Walker 350-34206 Oxygen Sensor - Downstream, Upstream or Upstream Rear

Overview of Walker 350-34206 Oxygen Sensor

The Walker 350-34206 oxygen sensor is designed for specific vehicle applications including Ford Escort, Kia Sephia, Mazda Miata, MX-3, Protege, and Mercury Tracer models. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fit and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Ford Escort, Kia Sephia, Mazda Miata, MX-3, Protege, and Mercury Tracer
• 19.21-inch wiring harness length with 4 wires of 20 gauge
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 22.76 inches for proper installation

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-34206) is a heated sensor designed to provide accurate oxygen level readings to the vehicle’s engine control unit. The 4-wire configuration includes a heating element that allows the sensor to reach operating temperature quickly, improving emissions control and fuel efficiency. The wiring harness length of 19.21 inches and 20 gauge wire size provide durability and ease of routing during installation. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The radiused polygon female connector is engineered for a precise and reliable electrical connection, reducing the risk of signal loss or corrosion.

Walker Products Aftermarket Line Information

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on providing reliable, vehicle-specific parts that support proper engine performance and emissions compliance. The 350-34206 oxygen sensor is part of this line, ensuring compatibility and quality for the listed Ford, Kia, Mazda, and Mercury models.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Ford Escort, Kia Sephia, Mazda Miata, MX-3, Protege, and Mercury Tracer
• Helps resolve rough idling and poor fuel economy caused by inaccurate oxygen readings
• Reduces emissions-related check engine lights triggered by sensor malfunction
• Improves engine performance by providing accurate air-fuel mixture data
• Prevents damage to catalytic converters due to improper sensor function

Installation Notes and Tips

When installing the Walker 350-34206 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector type matches the vehicle’s harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. The 19.21-inch wiring harness length allows for flexible routing in the engine bay.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 350-34206 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures confidence in the sensor’s reliability for emission control applications.