The Idler Pulley Assembly is an OEM part for Whirlpool dryers. This component is essential for maintaining the proper tension on the dryer belt, allowing the drum to rotate smoothly during drying cycles. Over time, the idler pulley assembly can wear out or become damaged due to the constant movement and tension it endures. Common causes of a bad idler pulley assembly include regular wear and tear, accumulation of lint or debris, or excessive strain from overloading the dryer. Symptoms of a bad idler pulley assembly include: Squeaking or squealing noises during dryer operation The drum failing to rotate or rotating unevenly The dryer stopping unexpectedly mid-cycle The belt slipping or breaking This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.Part Number 8547174V (AP5983811) replaces 8547174, 4248254, 8547174VP, PS11722120.