This sale is for a water pump pulley from a Mercruiser Alpha One stern drive.

 It fits many Alpha One Mercruisers and OMC Stringers with 2.5 or 3.0 GM 4 Cylinder engines.

Stamped 3927797AF

The Pulley has one groove and a 7 1/8 inch diameter.
Overall depth front edge to back edge 2 3/4"
2 1/8" bolt pattern


This pulley is ready to use and has no cracks or damage. It is from freshwater Wisconsin use.

You will receive one pulley like the one you see pictured.  Color may vary depending on our current inventory.


Please check your part numbers to ensure a proper fit for your application.


We offer the most used Stern Drive & Outboard parts in Wisconsin!


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