The Frigidaire 154367402 Lower Wash Arm Support secures the dishwasher’s lower wash arm and keeps it correctly positioned during wash cycles. Designed for compatible Frigidaire dishwashers, this replacement component supports proper wash arm movement and water distribution across the lower rack. The support maintains the arm’s position while allowing it to rotate as intended, promoting more consistent coverage during cleaning. A worn, cracked, or missing support can affect wash arm positioning and reduce cleaning consistency.