Mercury - VesselView 903 9-Inch Kit SmartCraft Rigging 2-4 Engine Black Finish 8M0129545. Overview. When you're running multiple Mercury engines, you need a system that keeps every heartbeat in sync. The VesselView 903 Kit (8M0129545) does exactly that. It's a complete setup - including the 9-inch glass touchscreen display, VesselView Link module, and harnessing - made for 2-4 engine installations. Every piece is engineered to work together, giving you total visibility across your entire power s