Walker 350-34540 Oxygen Sensor - Downstream Front or Downstream Rear

Overview of Walker 350-34540 Oxygen Sensor

The Walker 350-34540 oxygen sensor is designed specifically for select Hyundai and Kia models, including the Amanti, Santa Fe, Sorento, and XG350. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance through precise air-fuel mixture measurement.

• Heated sensor type for faster activation and improved efficiency
• Specific fit for Hyundai and Kia vehicles
• 26.3-inch wiring harness length for convenient installation
• 20 gauge wire measurement with 4 wires for reliable signal transmission
• Radiused polygon male connector for secure connection
• 18.0 mm threaded mounting for direct replacement
• Overall length of 29.84 inches to match OEM specifications

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34540) is engineered to meet the exact specifications of your vehicle’s original equipment. The heated sensor design allows it to reach operating temperature quickly, reducing emissions during cold starts. With a 26.3-inch wiring harness and 20 gauge wires, it provides a durable and stable electrical connection. The radiused polygon male connector ensures a precise fit, minimizing the risk of loose connections or signal loss. The threaded mounting with an 18.0 mm diameter allows for straightforward installation, matching the OEM sensor’s dimensions and fitment.

Walker Products Aftermarket 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-fit solution for Hyundai and Kia vehicles that require precise sensor performance to maintain emission compliance and engine efficiency.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Hyundai Amanti, Santa Fe, Kia Sorento, and XG350
• Helps resolve rough idling and poor fuel economy caused by inaccurate air-fuel mixture readings
• Reduces engine hesitation and stalling related to sensor malfunction
• Assists in passing emissions tests by ensuring proper exhaust gas monitoring
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Use the correct tools to remove the old sensor and install the new one with the 18.0 mm threaded mounting. Verify the connector matches the radiused polygon male type for a secure fit. Avoid twisting or damaging the wiring harness during installation. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34540 part number undergoes rigorous testing to ensure durability and accurate sensor response. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.