Walker 245-2149 Mass Air Flow Sensor

Walker Mass Air Flow Sensor 245-2149

Walker Mass Air Flow Sensor 245-2149 is a direct-fit engine management replacement for select Chevrolet, GMC, Cadillac, and Pontiac applications. It is built with a 5-terminal female connector, includes mounting hardware, and does not include a housing.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting OEM-level specifications. The Walker Mass Air Flow Sensor line is built for accurate vehicle application coverage, making this part number a practical choice for drivers servicing GM trucks, SUVs, and performance sedans.

Key Features

• Part number 245-2149 mass air flow sensor for select GM applications
• 5-terminal female connector for the correct electrical interface
• Mounting hardware included for installation support
• Housing not included
• Walker Mass Air Flow Sensor line backed by Walker engineering and product management
• Cross-reference: Standard Ignition MAS0183

Vehicle Fitment

• Fits 2011-2017 Chevrolet Caprice, N/A
• Fits 2014-2017 Chevrolet SS, N/A
• Fits 2009 Cadillac Escalade, N/A
• Fits 2007-2009 Chevrolet Silverado 1500, N/A
• Fits 2007-2009 Chevrolet Tahoe, N/A
• Fits 2007-2009 GMC Sierra 1500, N/A
• Fits 2007-2009 GMC Yukon, N/A
• Fits 2008-2009 Pontiac G8, N/A
• Fits 2007-2008 Chevrolet Avalanche, N/A
• Fits 2007-2008 Chevrolet Silverado 2500 HD, N/A
• Fits 2007-2008 Chevrolet Silverado 3500 HD, N/A
• Fits 2007-2008 Chevrolet Suburban 1500, N/A
• Fits 2007-2008 Chevrolet Suburban 2500, N/A
• Fits 2007-2008 GMC Sierra 2500 HD, N/A
• Fits 2007-2008 GMC Sierra 3500 HD, N/A
• Fits 2007-2008 GMC Yukon XL 1500, N/A
• Fits 2007-2008 GMC Yukon XL 2500, N/A

Common Issues This Part Can Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Poor fuel trim behavior from a failing MAF sensor
• Check engine light related to mass air flow sensor performance
• Driveability concerns on Chevrolet Silverado 1500, Tahoe, Sierra 1500, and related GM platforms

Installation Notes

Verify connector style, terminal count, and housing requirements before installation. This part number uses a 5-terminal female connector and does not include a housing, so the existing intake assembly must match the application. Confirm fitment by year, make, and model before replacing the sensor on Chevrolet Caprice, Chevrolet SS, or other listed vehicles.

Quality Assurance

Walker Products is an ISO 9001/IATF16949 certified manufacturer with long-standing experience in fuel system and engine sensor production. The company supports its parts with internal manufacturing, engineering, and technical resources to maintain application accuracy and product consistency.