Mercury - 300 Hour Maintenance Kit with Anodes Verado L6 Service Package Complete OEM Components 8M0097859. Overview. There's something special about running a Verado. The quiet push when the supercharger spools, the way the boat lifts cleanly onto plane, the steady confidence that carries you through chop, tide lines, and long runs offshore. But even the best engines need thoughtful care, and the 300-hour service is one of the big ones-the kind you don't cut corners on. The Mercury 8M0097859 30