2003 Mercury prop

[Merc1961]

I just got my motor ready for fishing and noticed the lower oil drain plug is leaking. I cannot find a part number. Anyone know the number for the screw and gasket?

[boats.net]

What motor do you have, model and serial would help? Are you talking about the drain screw in lower unit(gearcase)?

[Merc1961]

Yes in the lower unit there are 2 of them. It's a 20M serial # is OT779385.

[boats.net]

It would be number 10 and 11 in this parts catalog, https://www.boats.net/catalog/mercur...5-1-gear-ratio