Walker 350-33043 Oxygen Sensor - Upstream

Overview of Walker 350-33043 Oxygen Sensor for Mercedes-Benz

The Walker 350-33043 oxygen sensor is designed specifically for Mercedes-Benz 300SL and 500SL models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Mercedes-Benz 300SL and 500SL
• Threaded mounting type with 18.0 mm thread diameter
• 15.28 inches wiring harness length for precise installation
• Radiused polygon female connector for secure connection
• Overall length of 18.82 inches for proper fitment
• 20 gauge wire for reliable signal transmission

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-33043) is engineered to meet the exact specifications required by Mercedes-Benz 300SL and 500SL vehicles. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor includes a 3-wire setup with 20 gauge wiring, ensuring consistent electrical performance. Its radiused polygon female connector and threaded mounting with an 18.0 mm diameter allow for a secure and precise fit. The wiring harness length of 15.28 inches and overall length of 18.82 inches are designed to match factory dimensions, facilitating straightforward replacement without modifications.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on delivering emission control components that align with original equipment standards. This oxygen sensor is part of that line, providing a reliable and direct replacement option for Mercedes-Benz 300SL and 500SL owners seeking to maintain factory-level emissions performance and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved fuel economy
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and engine hesitation caused by faulty sensors
• Supports compliance with emissions testing requirements

Installation Notes and Tips

When installing the Walker 350-33043 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. Confirm the radiused polygon female connector is securely attached to the vehicle wiring harness. Verify the wiring harness length and overall sensor length match the original part to prevent strain or loose connections.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 350-33043 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability in Mercedes-Benz 300SL and 500SL applications.