Walker 350-34711 Oxygen Sensor - Upstream

Overview of Walker OE Replacement Oxygen Sensor 350-34711

The Walker OE Replacement Oxygen Sensor 350-34711 is designed specifically for BMW 320i models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a 13.11-inch wiring harness and a 4-wire configuration for reliable connectivity and accurate readings.

• Heated oxygen sensor for faster response times
• Specific fit for BMW 320i vehicles
• 13.11-inch wiring harness length for proper installation
• 20 gauge wire measurement ensuring durability
• 4-wire design with female connector for secure connection
• 18mm thread diameter and 16.65-inch overall length

Detailed Product Description

The Walker OE Replacement line focuses on providing direct-fit components that meet or exceed original equipment specifications. The 350-34711 oxygen sensor is engineered to deliver accurate air-fuel mixture data to the engine control unit, helping maintain efficient combustion and reduce emissions. Its heated sensor type allows quicker activation, improving performance during cold starts. The 4-wire design includes two wires for the heating element and two for the sensor signal, ensuring consistent operation. With a thread diameter of 18mm and an overall length of 16.65 inches, this sensor fits precisely in the designated location on BMW 320i models.

Applications and Problem Resolution

• Restores proper oxygen sensing for emission control systems
• Helps resolve rough idling and poor fuel economy issues
• Addresses check engine light triggers related to oxygen sensor faults
• Improves engine performance by providing accurate air-fuel ratio data
• Supports compliance with emission regulations

Installation Notes and Tips

When installing the Walker 350-34711 oxygen sensor, ensure the wiring harness length of 13.11 inches is sufficient for your BMW 320i setup. The female connector and 4-wire configuration should match the vehicle’s existing harness for a secure fit. Use appropriate tools to avoid damaging the 18mm threaded sensor during installation. It is recommended to inspect the sensor port and clean it before installation to ensure proper sealing and sensor function.

Quality Assurance and Warranty

Walker’s OE Replacement product line is designed to meet original equipment standards, providing reliable performance and durability. While specific warranty details for part number 350-34711 are not provided here, Walker products typically come with manufacturer-backed quality assurance to support long-term use in BMW 320i vehicles.