The Center Wash Arm Assembly is an OEM component specifically designed for GE dishwashers. It is the main wash arm responsible for spraying water across the center rack area during cycles to effectively clean dishes. The wash arm measures approximately 3/4” H x 2 ¾” W x 19” D. Causes of a bad center wash arm assembly can include clogs from food particles or hard water deposits, damage from dishware, or wear and tear from frequent use. A malfunctioning wash arm can lead to poor cleaning performance and spots or residue on dishes. Symptoms of a bad center wash arm assembly include: Dishes not being cleaned properly Water not spraying or rotating as expected Unusual noises during the wash cycle Visible cracks or damage to the wash arm This GE replacement part is also compatible with Hotpoint, RCA, and some Kenmore models.Part Number WD22X10046 (AP3861005) replaces 1168307, AH1015640, EA1015640, PS1015640, WD22X10042.