Mercury – Block Water Pressure Digital Kit | SmartCraft Pressure Input | 8M0089111Mercury Block Water Pressure Digital Kit SmartCraft Pressure Input 8M0089111 Overview Keeping an eye on cooling performance is a lot easier when your SmartCraft display shows block water pressure in real time. The Mercury 8M0089111 Block Water Pressure Digital Kit gives 2. 1L F75115 FourStroke engines the ability to send that pressure data directly into the SmartCraft network. Its a clean way to add an important piece of engine information without