U-Joint Bellow For A Mercruiser Alpha One Gen. II. It Comes Complete With Clamp And Metal Sleeve.
If your Bellow is currently held on with TWO hose clamps then you do not have a Gen 2 Alpha, you have the regular Alpha 1 and this is not the correct part.
This Item Replaces O.E.M. # 816431A1. Replaces GLM89180 , 18-2747 , 9-72704