Walker 350-35161 Oxygen Sensor - Upstream

Overview of Walker 350-35161 Oxygen Sensor for Mercedes-Benz

The Walker 350-35161 oxygen sensor is designed specifically for select Mercedes-Benz models including the E250, GLE300d, GLK250, and ML250. 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 sensor type for faster response times
• Specific fit for Mercedes-Benz E250, GLE300d, GLK250, and ML250
• 24.60-inch wiring harness length with 5 wires
• 20 gauge wire measurement for durability
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 29.52 inches for proper installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The product line emphasizes precise fitment and quality construction, ensuring compatibility and performance for vehicles like the Mercedes-Benz E250 and GLK250. Using parts from this line helps maintain factory-level emission standards and engine efficiency.

Technical Description and Attributes

The Walker 350-35161 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission readings shortly after engine start. The 5-wire configuration supports both sensor heating and signal transmission, while the 20 gauge wiring ensures durability and resistance to electrical interference. The radiused polygon male connector provides a secure and reliable connection to the vehicle’s wiring harness. Threaded mounting with an 18.0 mm diameter allows for straightforward installation and a tight seal to prevent exhaust leaks. The wiring harness length of 24.60 inches and overall length of 29.52 inches are designed to fit the specified Mercedes-Benz models without modification.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing correct emissions data
• Reduces harmful exhaust emissions by maintaining sensor accuracy
• Prevents engine performance problems caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Walker 350-35161 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 shape and gender match the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 350-35161 part number undergoes rigorous quality control to ensure reliable performance in Mercedes-Benz E250, GLE300d, GLK250, and ML250 models. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.