Sierra Water Pump Impeller for Mercury MerCruiser Stern Drives Impellers

Sierra water pump impellers for Mercury and MerCruiser stern drives are replacement marine impellers. They are made to keep raw water moving through your engine's cooling system. The impeller is the flexible, vaned part inside the raw water pump. It draws in water and pushes it through the engine, drive and exhaust components to carry heat away. Replacing a worn impeller helps prevent overheating and keeps the cooling system reliable.

Key Features:

• Aftermarket replacement impeller for Mercury and MerCruiser stern drive raw water pumps
• Flexible rubber vanes are designed to create steady water flow and consistent cooling
• Made to match the form and function of the original equipment part
• Built for use in marine environments, including freshwater and saltwater
• Supported by Sierra, a long-established name in marine engine parts

Why Replace Your Impeller: Impeller vanes harden, crack and wear with use and age. A worn impeller can cut water flow and lead to overheating and engine damage. Regular inspection and replacement on the schedule recommended by your engine manufacturer helps protect your engine. Choose the correct part number for your drive or pump model from the options on this page.