This part has no numbers or markings. It's the clip that goes in to keep the balance from coming out. It goes at the top edge of both sides of the window. It's 15/16" wide and 1 1/2" long.
Thanks for any help.
Paul from SWISCO responded:
April 4, 2013
Thanks for posting! Take a look at our 18-125. Compare the measurements and let us know if they differ.