The General Electric WD12X10231 Dishwasher Lower Stud and Roller Assembly supports smooth movement of the lower dish rack along its guide track. The roller provides a rolling contact point, while the stud secures the wheel in its designated position, allowing the rack to slide in and out during loading and unloading. Proper operation makes dish placement more convenient and supports s... https://www.hnkparts.com/wd12x10231-general-electric-lower-stud-roller-asm