The mass air flow sensor without housing is a direct replacement for select 2019-2024 Buick, Cadillac, Chevy and GMC applications. It measures the volume of air entering the engine so the engine computer can match fuel delivery to airflow; it installs into the existing housing.

Walker Products 245-1664 Mass Air Flow Sensor Features:

• Fits 2020-2024 Buick Encore GX, Cadillac CT5, Chevy Corvette, Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500, 3500 HD
• Fits 2021-2022 Buick Encore, Chevy Express 4500, GMC Savana 4500; 2024 Buick Envista, Chevy LCF 3500HG
• Also fits select Buick, Cadillac, Chevy and GMC applications
• Male oblong electrical connector with 4 spade terminals
• 2 mounting holes
• Mounting hardware and housing not included