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9 HP 2-stroke models from 1978–1980
carefully unscrew and remove the old sender from the engine block
This assembly is a direct interchange for MerCruiser part numbers 807166A1
Locate the alternator and identify the tensioning bolt and pivot bolt
Hinge Pin Tool – Fits MerCruiser Alpha & Bravo (Replaces 91-78310, 18-9861) Yamaha 9 HP 2-stroke models fromProduct Details This specialty Hinge Pin Tool is designed for removing and installing the hinge pins on both port and starboard sides of MerCruiser sterndrive bell housings. It is compatible with a wide range of models, including Alpha One (Gen I & II), Bravo (I, II, & III), MC 1, R, and MR sterndrives, ensuring broad application for many boat repair and maintenance tasks. It serves as a direct replacement for multiple OEM and aftermarket part
