Water pump impeller for Mercruiser Alpha Gen-2 sterndrives
Sierra 18-3056. Corresponds to Mercury Marine 47-43026-2. Applicable to Alpha Gen-2 sterndrives, c.1990-up, serial numbers 0D464569-up.
Inspection and replacing of the water-pump impeller should be done at least every other year or if any indications of leakage or overheating are present.
Aftermarket Sierra kits are noted for their very high quality and precision in matching the application. The rubber of the impeller is as good as or better than that used by Mercury Marine. Buy it with confidence!