The Wheel is an OEM part for Whirlpool dishwashers. This wheel attaches to the dishwasher rack, facilitating smooth and easy movement of the rack in and out of the dishwasher.   Causes of damage to the Wheel can range from normal wear and tear, which eventually wears down the plastic, to overloading the rack with dishes, which can cause excessive stress and breakage.   Symptoms of a failing Wheel include: The dishwasher rack jams or becomes difficult to move. A wheel falls off or appears visibly broken or damaged. The rack tilts or becomes unstable due to a missing or damaged wheel. Noises such as scraping or thumping when the rack is moved. This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.Part Number W10850374 (AP5989697) replaces W10300212, 4383726, PS11731145.