Mercury - Heavy Abrasion-Resistant Water Pump Cooling System Reinforced Housing 8M0092022. Overview. Any boater who spends time in skinny water or along a silty shoreline knows how unforgiving the environment can be. You feel the grit in the current, hear the light chatter of debris brushing the lower unit, and hope your cooling system is tough enough to handle what's beneath the surface. That's where a part like the Mercury 8M0092022 Water Pump earns its keep. It's built for those long days whe