The Upper Spray Arm Screw is an OEM replacement part for GE dishwashers. It is a component that secures the upper spray arm into place inside the dishwasher tub. The spray arm is responsible for distributing water above the top rack during wash cycles to help rinse and clean dishes. Causes of a bad upper spray arm screw can include wear and tear from extended use that results in a loose or stripped screw. Failure to secure the spray arm properly affects washing performance.  Symptoms of an improperly fastened upper spray arm include: Water not spraying properly from the arm jets Loose or rattling noises coming from inside the tub This part is also compatible with Hotpoint, RCA, and select Kenmore dishwashers.Part Number WD02X10109 (AP3794233) replaces 1088430, AH958860, EA958860, PS958860.