Mercury - Trim Cylinder Bushing for Alpha One Gen II Trim and Tilt System Component Marine-Grade Polymer 8M0214952. Overview. There's a moment every boater knows well - when you tap the trim button and feel the drive rise or settle exactly the way you expect. That smooth response doesn't happen by accident. It's the result of little components doing their job quietly, day after day. The Trim Cylinder Bushing 8M0214952 is one of those unsung pieces that keeps the whole system feeling tight and pr