Norcold Shelves

Anyone know where I could locate replacement plastic door shelves for our Norcold? Have sent e-mails to Norcold but have no response and do not see these listed in Camping World, etc. catalogs.

The shelves have cracked at the sides where they slide into door. Duct tape helps, but I'd rather have better attachment.
PS We DID NOT overload the shelf (I don't think)...were always conscious of how heavy stuff was distributed.
Thanx! :) :approve: