This is a two-part replacement wheel and attachment clip for the bottom rack of my dishwasher. Both parts have worked perfectly in PLA for several months. I'm unable to discern the model of dishwasher, sorry.

As you can see from the screenshots, both parts were printed with only minimal supports, and work just fine. I suggest setting your extrusion width and/or number of perimeters such that the main wheel body is 100% infill via perimeters (see GCODE screenshot).