Mercury - Housing-Strainer - 8M0111354. Keep your engine's cooling system protected and performing at its best with the Mercury Housing-Strainer - 8M0111354. This genuine OEM replacement part is engineered to house and secure the water strainer element, helping to trap debris before it enters your cooling system. Built to withstand harsh marine environments, it ensures proper filtration and consistent coolant flow, extending the life of your Mercury engine.. Key Features. OEM Precision Fit - Man