Home › Forum › Ask A Member › Mercury Water Impeller › Re: Mercury Water Impeller

#66058
stillpullin
Participant

    Thanks for the info! I’m finding conflicting info on the net regarding what part # fits a Mercury Mark 55. Mine is a 55 S with electric start, serial # 1146942 maroon in color and I THINK it’s a 1956.
    One site calls for a 47-89984, one says 47-21893 and another says 47-89983. I can’t confirm which one is actually correct and I for sure can’t seem to cross reference those numbers over to the newer 18 prefix Sierra part numbers. I was thinking 18-3007 is the correct fit but not sure. I was hoping to order one before I tore it apart but that’s not looking to promising at this point.