Mercury - Starter Motor Assembly Engine Electrical System Marine-Grade Construction 863007A1. OverviewA good starter motor is one of those parts you rarely think about-until the morning it fails. Anyone who's spent time on the water knows that quiet moment right before you turn the key, when you expect the engine to come alive without hesitation. That feeling of trust matters. With this Mercury Marine part, that confidence returns. The crank sounds strong, the engagement is clean, and you know y