Mercury - Console Mount Single Control, With Trim, Chrome Mechanical Remote Control 8M4507538. Overview. This is a basic console control for trim-equipped outboards, the kind you'd expect to see on a boat that actually gets run. Everything about it is mechanical and straightforward. The chrome handle feels solid when you grab it, and you can tell right away it's not a lightweight, budget control. The neutral lock is there to keep things calm when you're starting up or creeping around the dock, w