Walker 350-34229 Oxygen Sensor - Downstream

Overview of Walker 350-34229 Oxygen Sensor

The Walker 350-34229 oxygen sensor is designed specifically for select BMW models, including the 220i, 320i, 328i, and X3 among others. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for various BMW models including 220i, 320i, 328i, X3, and more
• Threaded mounting type with 18.0 mm thread diameter
• 23.15 inches wiring harness length with 4 wires of 22 gauge
• Radiused polygon male connector for secure connection
• Overall length of 26.69 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 line emphasizes precise fitment and quality construction, ensuring compatibility and durability for BMW vehicles requiring emission sensor replacements.

Product Description and Attributes

The Walker 350-34229 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It includes a 4-wire configuration with 22 gauge wiring, providing reliable signal transmission. The sensor’s radiused polygon male connector ensures a secure and proper electrical connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system. The wiring harness length of 23.15 inches and overall length of 26.69 inches are designed to fit the specified BMW models without modification.

Compatible BMW Models and Applications

• BMW 220i, 228i, and 228i xDrive
• BMW 320i, 320i xDrive, 328i, 328i GT xDrive, 328i xDrive
• BMW 420i, 420i Gran Coupe, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe
• BMW 520i, 528i, 528i xDrive, 530i
• BMW X1, X3, X4, X5, Z4

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor failure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and install the Walker 350-34229 sensor by threading it securely into place. Connect the radiused polygon male connector firmly to the vehicle’s wiring harness. Verify the wiring harness length and connector type match the vehicle’s specifications to avoid fitment issues. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM specifications for fit, form, and function. While specific warranty details for part number 350-34229 are not provided here, Walker typically offers limited warranties covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.