Walker 350-33018 Oxygen Sensor - Upstream

Overview of Walker 350-33018 Oxygen Sensor for Mercedes-Benz

The Walker 350-33018 oxygen sensor is designed specifically for select Mercedes-Benz models including the 380SEC, 420SEL, 560SEC, and 560SEL. This heated oxygen sensor provides accurate emissions monitoring to help maintain engine performance and comply with emission standards.

• Heated oxygen sensor with threaded mounting type
• Specific fit for Mercedes-Benz 380SEC, 420SEL, 560SEC, and 560SEL
• 35.94 inches wiring harness length with 3 wires of 20 gauge
• Radiused polygon female connector for secure connection
• 18.0 mm thread diameter and 39.49 inches overall length

Detailed Product Features and Specifications

This Walker Products Aftermarket oxygen sensor (part number 350-33018) features a heated sensor element that allows for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust gases. The sensor is designed with a threaded mounting type and an 18.0 mm thread diameter, ensuring a secure and precise fit in the exhaust manifold or pipe. The wiring harness length of 35.94 inches and 3-wire configuration with 20 gauge wire provide reliable electrical connectivity. The radiused polygon female connector is engineered for a stable and corrosion-resistant connection, reducing the risk of signal loss or failure.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct fit and reliable performance for Mercedes-Benz vehicles. The product line emphasizes quality materials and precise manufacturing to support emission compliance and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Supports emission system compliance by monitoring exhaust gases
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring optimal combustion

Installation Notes and Tips

When installing the Walker 350-33018 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness and secure the wiring harness to prevent strain or damage. It is recommended to check for any exhaust leaks after installation to maintain sensor accuracy.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards. While specific warranty details for part number 350-33018 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to ensure dependable operation in Mercedes-Benz 380SEC, 420SEL, 560SEC, and 560SEL models.