Dorman 65311 Crush Oil Drain Plug Gasket, Pack of 2 Direct replacement gaskets and some universal gaskets available. Proper fit with the drain plug ensures a tight seal. Gaskets are also included with many of Dorman Engine Oil Drain Plugs and Pans Made to specific sizes and standards to ensure a proper fit Designed and constructed to strict engineering quality standards Fits 3/4 SO, 13/16, M20