The Upper Spray Assembly is an OEM part for GE dishwashers. It is a part located at the top of the dishwasher, designed to distribute water evenly over the dishes during a wash cycle. This part ensures that water reaches all items in the dishwasher, regardless of their placement, facilitating thorough cleaning and rinsing.  Causes of a bad part can include wear and tear from regular use, hard water mineral buildup leading to clogging, or direct damage to the assembly or its outlets. Symptoms of a bad Upper Spray Assembly include: Dishes in the upper rack not being cleaned properly. Water not spraying evenly or forcefully from the upper spray arms. Noise or rattling sounds from a damaged or obstructed spray arm during a cycle. This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.Part Number WD22X10081 (AP4980655) replaces 1811033, AH3486937, EA3486937, PS3486937.