Sierra 18-1953-2 Exhaust Manifold 5.0 & 5.7-Liter V-8 Mercruiser Replacement. Fits both Port and Starboard sides of engine. Replaces Mercruiser 5.0 and 5.7-Liter Center Style Exhaust Manifolds (1983-2002). Replaces Mercruiser part #'s 87714A8, 87114A19 and 860246A10. Supplied with raw water restrictor gasket and manifold to head gasket. 1-year limited parts and labor warranty.