Complete Bellows Replacement Bundle -- This kit includes both the 816607 aluminum bellows sleeve / retainer ring and the 91-818162 installation tool — everything you need to replace and seat the ring perfectly in one purchase
Meets OEM standards -- 816607 Bellow Flange Ring made of superior-quality Aircraft Grade Aluminum. Same MerCruiser / Mercury factory bellows sleeve standard as used in the Alpha One Gen II driver
Precision Installation Tool Included -- The 91-818162 driver is engineered to seat the aluminum ring into the U-joint bellows cleanly, without damage or misalignment
Saves Time & Avoids Mistakes -- Combining the correct ring and tool ensures easier DIY installation, fewer errors, and no need to hunt for the tool separately
Broad Compatibility & Assurance -- Fits MerCruiser Alpha One Gen II, Bravo, Blackhawk U-joint bellows. Replaces OEM #816607 sleeve and OEM #91-818162 tool. Designed for durable performance