OEM #12677294, 12671847, 12642429 (12737099), 12691866 Replacement: Direct replacement for original turbo gasket components. Turbo Gasket Kit: Designed to seal key joints in the turbo system and prevent exhaust or boost leaks. Fits GM Duramax 6.6L L5P Engine: Compatible with GM Duramax L5P diesel engines (model years 2017-present). Metal and Rubber-Coated Metal: Durable construction resists heat, pressure, and corrosion in turbo applications. Includes 7 PCS: Complete set includes 7 turbo gaskets for proper installation and sealing. Seal to the Maximum Gaskets from Bear the Sealer are built to last. We would make sure the products you choose have the same quality as the OE manufacturers or even better before handing out to you.