Sierra International Fuel Pump With Mounting Gasket For MerCruiser/Omc/Chris Craft Gm V8 305 350 & 400 18-7265. It is designed for use in Mercruiser OMC and Chris-Craft GM V8 (305 350 & 400) engines. The flange I.D. numbers are: 41412 and M73018. The...