Replacement part 3185530

Thank you for posting. I believe you have the Ronthor #3185530. Unfortunately, this has been discontinued for some time and is no longer available anywhere. We have had a few customers use some of our other drawer hardware to repair their drawer system but it did take a little handy-work. 

You could possibly use our 32-053, for example, which is a fairly versatile track kit that has been known to work in a variety of drawers. Unfortunately, we have not yet heard confirmation that this replaces the Ronthor #3185530. 

Sorry we could not be of more help with this particular piece of hardware.