Product review (5 stars): Excellent replacement part for 8-year old Jenn-Air dishwasher, and best price, too.
This fit our 8-year old Jenn-Air dishwasher perfectly, and after watching an on-line video, it was very easy to install.  Our "old" one was obviously not dispensing rinse aid (rinse aid level indicator never went down, although it did dispense detergent).  I don't know if that's a typical failure mode, but we decided we needed a replacement part.  After doing some research, we found this vendor to have the very best price - way cheaper than some other web sites.  We knew this part was right because the image matched exactly the defective one in our old Jenn-Air dishwasher.