Mercury-Mercruiser 57234A-1 Water Pump Base Assembly

Mercury-MerCruiser 46-57234A1 Water Pump Base AssemblyThe Mercury-MerCruiser 46-57234A1 Water Pump Base Assembly is a replacement water pump base for select MerCruiser MC-I and R drives. This assembly fits 1970-1984 MC-I and R drive applications without a flush screw in the housing where specified by the Mercury-MerCruiser parts diagram.The water pump base is an important cooling system component that helps support proper water pump function and cooling water flow through the sterndrive. Replacing a worn, damaged, cracked, or leaking water pump base can help restore reliable cooling system performance during drive service.Product Features:Mercury-MerCruiser water pump base assemblyFits select MerCruiser MC-I and R drivesDesigned for applications without a flush screw in the housingFor 1970-1984 compatible drive applications where specifiedHelps replace a worn, cracked, damaged, or leaking original water pump baseSupports proper water pump operation and cooling water flowProduct Details:Brand: Mercury-MerCruiserManufacturer Part Number: 46-57234A1Listing Part Number: 46-57234A-1Part Type: Water Pump Base AssemblySystem: Water pump / cooling systemApplication: MerCruiser MC-I and R drives without flush screw in housingModel Years: 1970-1984 where specifiedFits Select MerCruiser Applications:MC-I drives without flush screw in housing, 1970-1984 where specifiedR drives without flush screw in housing, 1970-1984 where specifiedReplaces / Interchange:GLM 12310Mallory 9-43306OMC 0508398Redline RL3417Sierra 18-3417Service Note: See your owners manual or service manual for water pump inspection, base replacement, gasket placement, installation procedure, and cooling system checks for your specific drive.Fitment Note: Water pump base assembly fitment should be verified by drive model, model year, serial number, water pump housing style, flush screw configuration, parts diagram, and existing part number before ordering. Please confirm this water pump base assembly is correct for your MerCruiser MC-I or R drive before purchasing.