The Samsung DD97-00509A Dishwasher Upper Rotor Assembly is a rotating wash component designed to distribute water across the upper section of the dishwasher tub for effective cleaning performance. It operates by channeling pressurized water through precision openings, creating a controlled spray pattern that reaches dishes on the upper rack. Installed beneath the upper rack support, t... https://www.hnkparts.com/samsung-dd97-00509a-dishwasher-upper-rotor-assembly