Whirlpool WP8535083 Dishwasher Upper Spray Arm OEM Part

This is a 12 year old Kenmore, but my experience applies to many dishwashers. The machine had run for almost a year without being cleaned. I found parts had failed from age and water passages were jammed with hard-water deposits and pieces of food, labels, etc. that had gotten past the filters. I cleaned out what I could and replaced parts that could not be cleaned or were damaged. Dishwasher now works better than it has for years. The work, including ordering parts, took about 4 hours, but this beats the alternative of spending abt. $600 n a new dishwasher.

Replaced the spray arm. Probably could have saved the old one, but it was just simpler to buy a new one

Replace the entire assembly, manifold, spray arm with seal and water probe. Took 5 minutes. Problem solved!

By installing the top sprayer..

After a wash cycle, the glasses & plates on the top rack looked worse than when we put them in. Very spotty and covered in something that looked like sand. After inspecting the washer, I found that the spray arm and wash spinner were both clogged and cracked. This was causing water to not properly flow through them. I tried to clean them with limited results so I decided to just replace them. They were extremely easy to remove and the parts cost less than $40. After replacing them, the dishwasher cleans like new. Simple and cheap fix with great results.