Product review (5 stars): Perfect fit for my kitchenaid
This restored my dishwasher to normal.  My family put some plastic toothpick-like skewers in to be washed in order to re-use them, unfortunately they got stuck in this chopper part. It stripped the plastic shaft (as designed ).  Once the shaft was stripped, the screen would clog up and the recirculating pump would not get enough water.

Restoring the chopper to grind the food up and off the screen seems to have restored the operation of the dishwasher.