Mercury - V12 1000-Hour Maintenance Kit Precision Parts Series OEM Components 8M0179988. Overview. When you run a Mercury V12 offshore, you grow to appreciate the quiet strength of an engine that simply does what it is supposed to do. No drama, no hesitation-just smooth, confident power whether you are running a long stretch of open ocean or easing back toward the dock at dusk. That level of trust only comes from consistent, high-quality care. The Mercury 8M0179988 1000-Hour Maintenance Kit brin