The Whirlpool WPW10195839 Rack Adjuster helps maintain smooth movement and proper positioning of the dishwasher rack for convenient loading and unloading. Designed to work with the rack assembly, this component allows the rack height or position to be adjusted according to the dishwasher’s design, making it easier to accommodate dishes, cookware, and other items. A properly functioning rack adjuster helps the rack slide and sit securely during everyday use. Replacing a worn, cracked, or damaged adjuster can help restore rack stability and improve access to the dishwasher’s interior.