Yes, a new center board can be bought from Tartan (actually tartanparts.com) but at $1650 + an estimated $250 for shipping. https://www.tartanparts.com/product/...8-fa26f4041801
I have to say I have found tartan's replacement parts to be quite expensive and a bit beyond the pale. Catalina/Beneteau do a much better job of supplying parts for their boats without the extra gouge to your wallet.
They clipped me $750 for a new bow pulpit for our T27 that I probably could have made locally for less. Never again if I can help it.