Mercury - Coupler Assembly, Flywheel Mount MerCruiser Bravo Series Precision Steel Construction 8M0098795. Overview. Anyone who runs a MerCruiser sterndrive knows how much trust we place in the parts you never actually see. The coupler assembly is one of those hidden heroes-quiet, strong, and absolutely essential. When it is doing its job, you feel it in the smooth push of the throttle and the steady power transfer that carries you onto plane. The Quicksilver 8M0098795 Coupler Assembly brings th