Walker 350-34186 Oxygen Sensor

Reliable Oxygen Sensor for Select Mercedes-Benz Models

The Walker 350-34186 oxygen sensor is designed specifically for various Mercedes-Benz vehicles, including the CL500, E320, and S500. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• 16.46-inch wiring harness length for precise fitment
• 20-gauge wire measurement with 4 wires for reliable signal transmission
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 20.0 inches for proper installation

Walker Products Aftermarket Line Overview

The Walker Products Aftermarket line focuses on providing quality emission control components tailored to specific vehicle applications. This oxygen sensor, part number 350-34186, is engineered to meet the exact specifications required by Mercedes-Benz models such as the SL500 and S420, ensuring compatibility and performance consistency.

Detailed Oxygen Sensor Description

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and heater circuit, while the 20-gauge wiring ensures durability and resistance to electrical interference. The radiused polygon male connector and threaded mounting type with an 18.0 mm diameter provide a secure and precise fit, minimizing installation issues. With an overall length of 20.0 inches and a wiring harness length of 16.46 inches, this sensor is designed for specific fitment on Mercedes-Benz models including the CL600, E430, and S600.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy
• Reduces emissions by ensuring proper air-fuel mixture
• Prevents check engine light triggers related to sensor faults
• Supports smooth engine performance and drivability

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid injury. Disconnect the battery to prevent electrical shorts. Use the correct tools to remove the old sensor and install the Walker 350-34186 oxygen sensor, verifying the 18.0 mm threaded mounting fits securely. Confirm the radiused polygon male connector aligns properly with the vehicle harness. After installation, clear any diagnostic trouble codes and perform a test drive to verify sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet OEM standards for fit, form, and function. This part number 350-34186 undergoes rigorous quality control to ensure durability and reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.