For round back alternators, part number and build date are on the battery boss.
The front casting should also have a part number, I believe somewhere between the fins.
I tried A-1, they don't have it even though site says in stock.
Summit also out of stock when I looked.
All parts stores are out of stock, hence my post hoping a member on FABO has a can to part with.
Looking for a can or two of P4120752AB turquoise engine paint.
I would even consider partial cans as I am just a little short of finishing my engine re-paint.
Shipped to SD zip 57004.