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The Quicksilver 816597A1 Water Tube Coupling is an OEM replacement coupling designed for MerCruiser Alpha One Generation II sterndrive water pump systems. This coupling serves as a critical connection point in the engine cooling circuit, linking the water tube within the sterndrive lower unit to ensure proper coolant flow to and from the water pump impeller.
Replacing worn or damaged water tube couplings during routine water pump service is essential to maintaining a watertight seal in the cooling system and preventing overheating. This is the early-style coupling used in Alpha One Gen II drives.
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Use actual picture of item being sold
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nothing yet.
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