Armed with the model # of my dishwasher and the broken part in hand, I was able to view the detailed parts diagram on AppliancePartsPros.com and determine which part I needed to replace. The part was less than $30 including shipping and arrived within 2-3 days of my order. It took me about 5 minutes to remove the broken part, replace it with the new one, and reattach the spray arm assembly. Not only did I save money by doing it myself, I also saved time b/c I didn't have to schedule a technician to come out for the repair.