Global Parts 1816401 Mass Air Flow Sensor

Mass Air Flow Sensor for GM HD Trucks and Vans

Global Parts 1816401 is a Mass Air Flow sensor for select Chevrolet and GMC heavy-duty vans and trucks from 2011-2016. It measures incoming air volume and density so the engine control module can calculate fuel delivery and ignition timing with greater precision.

• Measures intake air flow and density for accurate fuel metering
• Supports smoother engine response and consistent combustion control
• Direct-fit application for select Chevrolet Express, Silverado HD, GMC Savana, and Sierra HD models
• Cross-references Standard Ignition MAS0279 for the same application
• Part number 1816401 for easy identification and ordering

Detailed Application Information

This Global Parts mass air flow sensor is built for 2011-2016 Chevrolet Express 2500, Chevrolet Express 3500, Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Savana 2500, GMC Savana 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 HD. It helps the engine control unit maintain the correct air-fuel ratio by reporting intake airflow data, which is essential for drivability and emissions control on these Chevrolet Silverado HD and GMC Sierra HD platforms. If you are replacing a failing MAF sensor on a Chevrolet Express or GMC Savana van, part number 1816401 provides the application match needed for service work.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Reduced fuel economy from incorrect fuel delivery
• Check engine light concerns related to air metering
• Hard starting or inconsistent engine performance

Installation Notes and Tips

Verify the connector style and sensor location against the original unit before installation. Inspect the intake tube, air filter housing, and wiring connector for contamination or damage, since air leaks and electrical faults can affect sensor readings. After installation, clear diagnostic trouble codes and confirm normal idle and throttle response.

Quality Assurance

Global Parts supplies replacement components for service applications, and this sensor is listed with OE-style interchange references for the same fitment. Confirm vehicle year, make, and model before ordering to ensure the correct 1816401 application.