Restore water pump function with a new housing. Mercury and MerCruiser water pump housings can wear over time resulting in reduced water flow and pressure. Replacing the pump housing (and impeller) can restore a proper supply of cooling water and reduce the chances of overheating the engine. Sierra replacement housings are engineered to meet the specifications of Mercury and MerCruiser water pumps used on many sterndrives and outboards. The plastic body features stainless steel impeller cup to reduce wear and provide a smooth surface the impeller. To refresh an older water pump, look to West Marine and Sierra to have the parts. Key Features Engineered to meet OEM specifications Restores cooling water flow (with new impeller) Reduces chances of engine overheating Backed by SeaStar Solutions Limited Two-Year Warranty 18-3116 Application Guide ApplicationOEM Part NumberGLM12410Mallory9-43211MerCruiser Sterndrive46-96148A1, 46-96148T1, 46-64141A1, 46-48743A1Mercury Marine46-96148T1, 46-96148A1, 46-64141A1, 46-48743A1, 46-96148The Sierra Engine Parts SelectorIn addition to water pump housings, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourEngine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.