Anode for saildrive

I’m looking to replace the anode on my Volvo Penta sail drive. I have a 1979 30C, hull #18. I’m pretty sure the sail drive is original to the boat. My supplier (recommended by Mike Quill) is asking me for the “type” of sail drive. I don’t know what to tell him. The serial # on it starts with 110… which I thought meant it was just a 110 model. Does anyone know how to identify the type?

While I’m at it: I sail in fresh water and plan to get an aluminum anode. Agreed?

We’re #27!

I think you’ll want magnesium for fresh water, if you can get it.

Ben,

I don’t know about Volvo sail drives of your vintage, but I used to have a pair of them on a previous boat built in 2003. My recollection is that the drive housing in the water was aluminum. If so, I wonder whether putting an aluminum anode on it works.

There’s this page for figuring out how to decode your Volvo serial number: https://www.volvopenta.com/en-us/support/\~/link.aspx?\_id=A9AD1E4D872148EE8A7566A784AEB20F&\_z=z

That might help, fwiw.

-- Bob