Mercury - Vented Splash Cover for 60hp FourStroke Engines Engine Protection Cover Black Polysoft II Material 8M0228504. Overview. If you spend your weekends on the water, you know how quickly you grow attached to a good outboard. A Mercury 60hp FourStroke is one of those engines you count on - steady, quiet, and always ready for another run up the river or across the lake. Keeping that engine looking sharp feels almost personal, and that's where this vented splash cover comes in. It offers the k