Hinge Pin Tool – Fits Mercury Mercruiser Alpha One, Gen II & Bravo Sterndrives (Replaces 91-78310, 18-9861) Skeeter Boats Ensure connections are tight

Ensure connections are tight

Black rubber rollers are very durable but can sometimes leave scuff marks on light-colored gelcoat or aluminum hulls

These components wear as a set

preventing catastrophic failure

while others provide a set of four for both rams

Hinge Pin Tool – Fits Mercury Mercruiser Alpha One, Gen II & Bravo Sterndrives (Replaces 91-78310, 18-9861) Skeeter Boats Ensure connections are tightProduct Details This Hinge Pin Tool is designed for the removal and installation of hinge pins on Mercury Mercruiser sterndrives, including Alpha One (Gen I & II), Bravo (I, II, & III), MC 1, R, and MR models from 1975 to the present. The tool is used on the hinge pin bolts to separate the sterndrive housing from the gimbal ring, simplifying service and maintenance. It serves as a direct aftermarket replacement for Mercury part 91 78310, Sierra 18