Mercury - Fuel Pump, Bowl Down MerCruiser Sterndrive Series Marine-Grade Fuel System Component 8M0073435. Overview. If you've ever had a sterndrive stumble at the worst possible moment-right when you're easing away from the dock or pushing through a tight channel-you know how fast a "small" fuel issue can ruin a day. Fuel delivery is one of those behind-the-scenes systems you only notice when it's not right. When it is right, the boat feels calm. Predictable. Ready.. This fuel pump is the kind o