This genuine Cummins® intake manifold gasket is designed to fit a range of compatible models, including the 6CT8.3, 6CTA8.3, 6CTAA8.3, QSC8.3, S6D114, S6D114-1, S6D114E-1, and S. It is a high-quality replacement part that is perfect for truck and other heavy equipment applications. The part number for this gasket is 3921440, and it is a crucial component for sealing the intake manifold cover in place. This intake manifold gasket is manufactured by Cummins and is designed to meet or exceed OEM specifications. It is made from high-quality materials to ensure a long-lasting and reliable seal. With this gasket, you can have peace of mind knowing that your engine is protected from air leaks and other potential issues.