Mercury - Fuel Pump EFI 4-Stroke Series Marine Composite Construction 8M0141827. Overview. There is a certain calm that settles in when you turn the key and your outboard fires up without hesitation. That smooth start, that steady hum-it tells you everything beneath the cowl is doing its job the way it should. A reliable fuel pump is one of those quiet heroes. You do not think about it much when it works, but you sure feel it when it does not. The Mercury 8M0141827 Fuel Pump brings that confiden