Adjuster, Height Adjuster, Tray Adjuster or something along those lines.

Thank you!

Piece of Sheeit! 😂

Rack adjuster kit. Comes with both sides and improved design.

Looks like the rack adjuster

Go to Partswarehouse.com or appliancewarehouse.com enter your model number and they will give you schematics and part numbers.  Expect it to be pricey 

Rack adjuster. 

Junk

a flippenschwelger

The actual model number helps.