Walker 350-34244 Oxygen Sensor - Downstream or Upstream Front

Overview of Walker Oxygen Sensor for Mazda 626

The Walker 350-34244 oxygen sensor is designed specifically for the Mazda 626, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Mazda 626 models
• Threaded mounting with 18.0 mm thread diameter
• 17.24 inches wiring harness length and 20.79 inches overall length
• 20 gauge wire for reliable signal transmission
• Radiused polygon female connector for secure connection

Detailed Product Description

The Walker 350-34244 oxygen sensor is engineered to meet the emission control requirements of the Mazda 626. As a heated sensor, it quickly reaches operating temperature to provide accurate oxygen level readings to the engine control unit. The sensor’s 4-wire design includes two wires for the heater circuit and two for the sensor signal, enhancing responsiveness and durability. The wiring harness length of 17.24 inches and overall length of 20.79 inches allow for proper routing and fitment within the engine bay. The radiused polygon female connector ensures a secure and precise connection, reducing the risk of electrical issues. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the designated exhaust port.

Walker Products Aftermarket Line

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. Walker’s aftermarket sensors are designed to meet or exceed OEM specifications, offering a direct replacement solution for Mazda 626 owners requiring precise fit and function.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining proper combustion
• Prevents engine performance issues caused by faulty sensor signals
• Supports smooth engine idling and acceleration response

Installation Notes and Tips

When installing the Walker 350-34244 oxygen sensor on a Mazda 626, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Avoid twisting or damaging the wiring harness during installation. Tighten the sensor to the manufacturer’s torque specifications to prevent exhaust leaks.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and ensure durability under high-temperature conditions. The 350-34244 part number is backed by Walker’s quality assurance protocols, providing confidence in fitment and function. Warranty details are available through Walker Products Aftermarket and typically cover defects in materials and workmanship.