Engineered Marine Products 46-00030 Marine Water Pump Impeller Plate

The Engineered Marine Products 46-00030 is a replacement impeller plate designed for Mercury marine water pump applications. This critical component works in conjunction with the impeller to ensure proper water flow and cooling system performance in your marine engine.

Key Features:

• Direct replacement for Mercury OEM part number 47-3117
• Cross-references with Sierra 18-3117 and multiple aftermarket part numbers
• Precision-engineered for reliable fit and performance
• Essential component for water pump maintenance and rebuild kits
• Compatible with select Mercury #1 drive units through serial number D494568

The impeller plate is a wear component that sits between the impeller and pump housing, providing a smooth surface for the impeller to rotate against while maintaining proper clearance for efficient water pumping. Regular replacement of the impeller plate during water pump service helps ensure optimal cooling system performance and prevents engine overheating.