The Upper Spray Arm Assembly is an OEM part for GE dishwashers. This part sprays water throughout the upper section of the dishwasher, ensuring that all dishes are thoroughly cleaned during the wash cycle. The spray arm rotates to distribute water evenly, reaching every corner of the upper rack. Causes of a bad spray arm can include mineral deposits clogging the spray nozzles, physical damage from dishware, or wear and tear over time. Symptoms of a bad upper spray arm assembly include: Inadequate cleaning of dishes on the upper rack Visible cracks or breaks in the spray arm Water not spraying or spraying unevenly Unusual noises during the wash cycle This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.This part fixes the following symptomsNot cleaning dishes properlyPart Number WD22X10050 (AP3994684) replaces 1263992, AH1481924, EA1481924, PS1481924.