Mercury - Water Pump Repair Kit Multi-Engine Cooling System Kit Marine-Grade Components 8M0100526. Overview. Every boater knows the sound of an engine running cool and steady. It is the kind of reassurance you feel more than you hear-whether you are drifting through a quiet inlet or pushing toward open water. The Quicksilver 8M0100526 Water Pump Repair Kit brings that sense of calm back to your outboard or sterndrive. When your cooling system is built on dependable parts, you can focus on the da