Mercury - L6 Verado 100 Hour Maintenance Kit Precision Service Package Marine-Grade Components 8M0120657. Overview. If you spend any amount of time behind the helm of a Mercury Verado, you know how deeply satisfying it is to feel that supercharged inline-six come alive. It is smooth, it is confident, and it delivers the kind of power that makes long runs feel effortless. That level of performance deserves care that is just as dependable, and when the 100-hour mark rolls around, you want a kit th