Mercury - Quicksilver 819228 Strainer Mercury Force Outboards 35HP (1986-1989) 819228. Overview. Keep your outboard's cooling system flowing strong with the Mercury 819228 Strainer, designed for Mercury Force 35HP outboards (1986-1989). This OEM strainer filters out debris and sand before they reach the water pump, helping your engine maintain the proper temperature and reducing wear on internal components.. Built from tough, marine-tested materials, it's made to last season after season in hars