4 Cylinder Exhaust Manifold to Head Gasket | Sierra 18-0680 Water Strainer Parts outside diameter is designed to

outside diameter is designed to prevent hose buckling

For various Mercury/Mariner outboards from 75 hp to 225 hp

Air conditioner circulating pump impeller

and 225 HP loop charged carbureted engines from 1993-2001

4 Cylinder Exhaust Manifold to Head Gasket | Sierra 18-0680 Water Strainer Parts outside diameter is designed to4 Cylinder Exhaust Manifold to Head Gasket Sierra 18 0680 Combination intake & exhaust manifold gasket fits GM 3. 0L 4 cylinder marine engines with Vortec cylinder heads. Exhaust manifold gasket For GM 3. 0L engines from approximately 1991 and up with Vortec cylinder heads All intake ports are of equal size and shape Will not work with all 3. 0L engines refer to engine model and serial for correct gasket Replaces Mercury 27 815528 Replaces OMC