For Regal/Grand National 1984-'87.  Used to help cover oil filter.  Does NOT come with the gasket.  Useful if worn out on current car since it can cause low oil pressure and show an indicator on the dashboard.  GM part #25524990.  NOTE - You may also be interested in #KPP7683 Timing Cover Gaskets and Seals, #KPP7437 Timing Chain Cover with New Timing Tab.