UPPER SPRAY ARM Assembly WD22X22501

Hello Rob, Thanks for your question. The part number for the upper spray arm on your model is PS11736584. I hope this helps.

Hello Jackie, Thank you for the question. The Upper Spray Arm just snaps into the Hub and on the Water Supply Tube. We hope this helps!

Hello Dave, Thank you for your inquiry. The upper spray arm is what rotates to clean and rinse the dishes from the inside top of the dishwasher. While you can run the dishwasher without it, your dishes will not get as clean without it. It attaches to the conduit with by the upper hub and tabs, available as part# PS11774434, use a small flat head screwdriver to release the tabs and remove the spray arm. Attach the new spray arm by aligning the hub support to the conduit and snap the tabs into place. Good luck with your repair.