Mercury - Water Pump Repair Kit Cooling System Composite & Marine-Grade Components 96148A8. Overview. If you've spent enough time on the water, you know your engine's cooling system isn't something you take for granted. When that steady stream from the tell-tale weakens or the temperature needle climbs a little higher than it should, your stomach drops. That's when a complete, dependable water pump overhaul becomes more than routine maintenance-it becomes peace of mind. The Quicksilver 96148A8 W