Walker 245-1166 Mass Air Flow Sensor

Overview of Walker Mass Air Flow Sensor 245-1166

The Walker Mass Air Flow Sensor 245-1166 is designed for precise air measurement in select Chevrolet, GMC, and Hummer vehicles. This sensor helps maintain optimal engine performance by accurately monitoring airflow to the engine's intake system.

• Compatible with Chevrolet Express 2500, Express 3500, Savana 2500, Savana 3500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic
• Fits GMC Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, and Hummer H1 models
• Includes mounting hardware for secure installation
• Features a 5-terminal female connector for reliable electrical connection
• Housing not included, designed for direct replacement of original sensor

Walker Mass Air Flow Sensor Product Line Details

The Walker Mass Air Flow Sensor line focuses on emission control sensors engineered to meet or exceed OEM specifications. The 245-1166 sensor is part of this line, providing accurate airflow measurement critical for engine management systems in heavy-duty Chevrolet, GMC, and Hummer vehicles.

Product Description and Attributes

This mass air flow sensor features a 5-terminal female connector, ensuring compatibility with the vehicle’s wiring harness. The included mounting hardware simplifies installation, although the sensor housing is not part of this package. The sensor is engineered to deliver precise airflow data to the engine control unit, which is essential for maintaining proper air-fuel mixture and reducing emissions.

Common Applications and Issues Addressed

• Helps resolve engine performance problems related to inaccurate airflow readings
• Addresses rough idling and stalling issues in Chevrolet Express and GMC Sierra models
• Improves fuel efficiency by providing accurate air measurement data
• Reduces emission control system faults in Hummer H1 and Silverado 3500 vehicles
• Prevents check engine light triggers related to mass air flow sensor faults

Installation Notes and Tips

Installation requires removal of the old sensor and replacement with the Walker 245-1166 unit. The included mounting hardware should be used to ensure a secure fit. Verify the 5-terminal female connector matches the vehicle’s wiring harness before installation. It is recommended to inspect the intake system for leaks or damage during replacement to maintain sensor accuracy.

Quality Assurance and Warranty

Walker mass air flow sensors are manufactured to meet strict quality standards for emission control components. The 245-1166 part number undergoes rigorous testing to ensure durability and performance. Please refer to Walker’s official warranty policy for specific coverage details.