Engineered Marine Products 46-00047 Water Pump Kit with Base for MerCruiser Pre-Alpha MC-1 R MR Alpha One

The Engineered Marine Products 46-00047 is a comprehensive water pump repair kit designed for MerCruiser MC-1, R/MR, and Alpha One sterndrive gearcases manufactured between 1970 and 1991. This complete kit provides all the essential components needed to rebuild your lower unit water pump and restore proper cooling system performance.

Complete Kit Includes:

• Impeller for efficient water circulation
• Impeller wear plate for extended service life
• Housing and base assembly
• Water tube guide and grommet
• All necessary gaskets and o-rings for a leak-free seal

This water pump kit ensures reliable cooling system operation by circulating seawater through your engine's heat exchanger. The complete base assembly and comprehensive gasket set make this an all-in-one solution for water pump rebuilds, eliminating the need to source individual components separately.

Replaces OEM Part Numbers: Sierra 18-3317, Mercury 96148Q8, Mercury 26-01800-A

Compatibility: Designed for MerCruiser MC-1, R/MR, and Alpha One drives from serial numbers covering 1970-1991 model years. This kit is intended for pre-Alpha and early Alpha One configurations with pump base mounting.