EMP 22-22000-2 MerCruiser Drain Plug Pack of 2This drain plug is intended for use with MerCruiser manifolds and meets all OEM requirements. Widely used for draining cooling system for winterization.Drain Plug Application:Fits MerCruiser manifold and engine block drain cockReplaces: Mercury; 8M0119211; Interchangeable: Sierra; 18-4226;