Indmar Marine Relay – Ignition, Fuel Pump & Start | Part #556051 Keep your Indmar engine starting and running reliably with this genuine Indmar combination relay covering ignition, fuel pump, and starter functions. A failed relay is one of the most frustrating and commonly misdiagnosed electrical faults on a marine engine — causing no-start conditions, fuel pump failure, or ignition dropout that can leave you stranded on the water. Compatible with: Indmar marine engines fitted to Malibu, Moomba, Supra, and Tige boats.