KitchenAid Dishwasher WPW10320510 lower spray arm does not thread onto hub

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**Brand:**KitchenAid
Model Number: kuds35fxss5
Main Symptom: Door Leak & Poor Cleaning
What happens & when: During the wash cycle, water leaks from the door

Error Code (if any):
Parts or tests already tried:
Photos / video link:

Hello, I responded to your question on the Q&A section of our page but there was no email address to contact you directly. If the new spray arm that you ordered from us appears worn or damaged, please contact us at 1-877-477-7278.

Hello,

Thank you for the response.

The lower spray arm I received does appear worn/damaged at the threads. I will call the provided number (1-877-477-7278) to follow up on this.

Thank you for your assistance.

Best regards,
Chaudry