Walker 350-34673 Oxygen Sensor - Downstream

Overview of Walker 350-34673 Oxygen Sensor for BMW Models

The Walker 350-34673 oxygen sensor is designed specifically for select BMW vehicles, including the 340i, 440i, 540i, and X3 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster activation and improved efficiency
• Specific fit for various BMW models such as 340i xDrive and 440i Gran Coupe
• 19.21-inch wiring harness length with 4 wires and 20 gauge measurement
• Female connector with an 18mm thread diameter for secure installation
• Overall length of 22.76 inches for proper fitment in exhaust systems

Detailed Features and Specifications

This oxygen sensor from Walker Products Aftermarket is engineered with a heated sensor element, which allows it to reach operating temperature quickly, reducing emissions during cold starts. The 4-wire design supports both sensor heating and signal transmission, ensuring reliable data for the engine control unit. The wiring harness length of 19.21 inches and 20 gauge wire thickness provide durability and ease of routing within the engine bay. The female connector and 18mm thread diameter are tailored for a secure and precise fit on compatible BMW exhaust ports.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering reliable, vehicle-specific parts that maintain emission standards and engine efficiency. The 350-34673 oxygen sensor is part of this line, providing a direct replacement solution for BMW models requiring precise sensor performance.

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 exhaust gas readings
• Reduces harmful emissions by ensuring proper catalytic converter function
• Prevents engine performance problems caused by faulty sensor signals

Installation Notes and Tips

When installing the Walker 350-34673 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the female connector matches the vehicle’s harness before installation. Torque the sensor to manufacturer specifications to prevent leaks or damage. It is recommended to inspect the exhaust system for leaks or damage during replacement.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. This part number 350-34673 undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier.