Hello, Traderkos.
Thank your for feedback regarding your dishwasher. We will be happy to assist you in this matter. Upon reviewing your photos, we have located the part needed. The upper spray arm assembly part number is 5304506516. Should you need additional assistance, please call our Customer Care Team at 1-800-374-4432 Mon-Fri, 8:30 am - 8 pm EST.
Regards,
R'Shaye