There is a number stamped into the mounting flange. It appears to be the same number that is on the bottom of the bowl (see photos, a little difficult to read in the photos but it's the same number). At this point I'm buying a general rebuild kit for Rochester B, BC and BV models. It seems to have all the parts needed and without the tag number I think that's all I can do. So now everything is cleaned and I'm just waiting for the parts to show up tomorrow morning, so they say.
