Kitchen Aid roller pin replacement

At 1 year my Kitchen Aid dishwasher Upper Rack had the roller pin (pin holding the roller to the basket) break. Three years after I bought it two more broke. My dishwashers pins were built into a large piece of plastic that was too big to print so I broke out the read of the material and inserted a new pin. Basically the pin sat in an indent shaped like well I"m not sure what it's called but its close to an oval. See the attached image. I cut out the oval. it didn't have to be precise. Th