Bread-Bakers v101.n023.4

I have a Williams-Sonoma bread machine and the bread pan is made from a fairly thin, softish metal.  I notice that it is acquiring some smallish dents from the dough hurtling around inside.  Is there a central parts place for items like this...I don't know who makes this particular machine for W-S, I've had conflicting information about who the manufacturer is.

Any of you own the same machine?  Anyone know of a central parts retailer? I'd appreciate any information you could provide me. 

Thanks.