Walker 350-34512 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker 350-34512 Oxygen Sensor for BMW Models

The Walker 350-34512 oxygen sensor is designed specifically for select BMW vehicles, including the 318i, 318is, 318ti, 750iL, and X5 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for BMW 318i, 318is, 318ti, 750iL, and X5
• Threaded mounting type with 18.0 mm thread diameter
• 26.69 inches wiring harness length and 30.24 inches overall length
• Radiused polygon female connector for secure connection
• 20 gauge wire for reliable signal transmission

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34512) is a heated sensor equipped with four wires, allowing for efficient heating and accurate signal output. The sensor’s wiring harness measures 26.69 inches, providing sufficient length for installation in the specified BMW models. The overall length of the sensor is 30.24 inches, and it features a threaded mounting type with an 18.0 mm thread diameter, ensuring a secure and proper fit. The connector is a radiused polygon shape with a female gender, designed to match the factory wiring harness for a direct replacement.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a precise fit and function for BMW vehicles requiring specific sensor types. The aftermarket line supports vehicle emissions compliance and engine efficiency through quality sensor design and manufacturing.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 318i, 318is, 318ti, 750iL, and X5 models
• Helps resolve engine performance problems related to faulty oxygen sensors
• Reduces emissions by ensuring proper sensor operation
• Prevents check engine light triggers caused by sensor failure
• Improves fuel economy by maintaining correct sensor feedback

Installation Notes and Tips

When installing the Walker 350-34512 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 wire count match the factory harness before installation. Proper torque should be applied to the 18.0 mm threaded sensor to prevent leaks or sensor damage.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-34512 sensor undergoes rigorous testing to ensure reliable operation in BMW vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.