Walker 350-34418 Oxygen Sensor - Downstream Left

Overview of Walker 350-34418 Oxygen Sensor for Mercedes-Benz

The Walker 350-34418 oxygen sensor is designed specifically for select Mercedes-Benz models including the C43 AMG, C280, CLK320, and CLK430. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle’s engine management system.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Mercedes-Benz C43 AMG, C280, CLK320, and CLK430
• Threaded mounting type with 18.0 mm thread diameter
• 15.28 inches wiring harness length and 18.82 inches overall length
• Radiused polygon male connector for secure connection
• 20 gauge wire for reliable signal transmission

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The product line emphasizes precise fitment and durability, making it suitable for maintaining factory-level emissions performance in vehicles like the Mercedes-Benz C43 AMG and CLK430.

Product Features and Specifications

The Walker 350-34418 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved sensor responsiveness. It includes a 4-wire design, which supports both the sensor signal and heater circuit, ensuring consistent operation under various driving conditions. The sensor’s wiring harness length of 15.28 inches and overall length of 18.82 inches provide adequate reach for installation in the specified Mercedes-Benz models. The radiused polygon male connector ensures a secure and precise electrical connection, while the 18.0 mm threaded mounting type allows for straightforward installation.

Common Applications and Problem Resolution

• Helps correct inaccurate air-fuel mixture readings
• Reduces engine misfires and rough idling
• Improves fuel efficiency by optimizing combustion
• Supports emissions compliance by monitoring exhaust gases
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure compatibility with Mercedes-Benz C43 AMG, C280, CLK320, and CLK430 before installation
• Use proper tools to avoid damaging the 18.0 mm threaded sensor mount
• Verify the radiused polygon male connector aligns correctly with the vehicle harness
• Inspect wiring harness length to confirm fit within engine bay routing
• Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for emission control components. The 350-34418 part number undergoes rigorous testing to ensure durability and reliable performance in Mercedes-Benz vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.