Mepla drawer slide plastic part (cabinet bracket?)

Not sure what to call this -- it mounts a drawer slide at the front to the side of the cabinet -- the post projecting out fits into one of two holes in this (Kraftmaid) cabinet from a circa 1999 or 2009 remodel (before we bought the home). The slide is suspended about 1/2" from the cabinet wall.
The brand name is Mepla. I'm happy to buy the entire slide if needed, but it's the plastic parts that were poorly installed and some have broken.

Thanks for any help!

Seattle home owner. I'm looking for the draw slide hanger shown from the back side in your second picture. For a Kraftmaid cabinet as well. Did you ever find the right part?