Walker 350-35079 Oxygen Sensor - Upstream or Upstream Right

Overview of Walker 350-35079 Oxygen Sensor

The Walker 350-35079 oxygen sensor is designed specifically for a wide range of BMW models, including the 228i, 335i xDrive, and M3. 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 multiple BMW models
• 15.87-inch wiring harness length with 5 wires
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 19.41 inches for proper installation
• 20 gauge wire for reliable signal transmission

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-35079) features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency. The sensor includes a 15.87-inch wiring harness with five 20-gauge wires, ensuring stable and accurate signal transmission. Its radiused polygon male connector is designed for a secure and precise fit, reducing the risk of connection issues. The sensor mounts via a threaded design with an 18.0 mm diameter, compatible with the exhaust system of specific BMW vehicles. The overall length of 19.41 inches facilitates proper placement within the exhaust stream.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a comprehensive range of emission control components engineered to meet or exceed OEM specifications. This oxygen sensor is part of their aftermarket line, providing a reliable replacement option tailored for specific vehicle applications. The focus on exact fitment and quality materials ensures compatibility and durability for BMW models requiring precise emission sensor performance.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for BMW 228i, 335i xDrive, M3, and others
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct emissions data
• Reduces harmful exhaust emissions by maintaining proper sensor function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Walker 350-35079 sensor into the exhaust port. Ensure the connector matches the radiused polygon male design for proper connection. Use appropriate tools to avoid damaging the 18.0 mm threaded mounting. Verify wiring harness routing to prevent contact with hot or moving parts. It is recommended to check for any diagnostic trouble codes before and after installation to confirm sensor functionality.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports the longevity of your BMW’s engine management system.