The Whirlpool WP6-3705180 Idler Arm and Shaft maintains proper tension on the dryer drive belt, supporting smooth drum rotation during operation. This replacement component works with the belt and drive system, allowing the idler pulley to move and maintain the tension needed to transfer power from the motor to the drum. Proper belt tension helps the drum rotate consistently as clothe... https://www.partsmelange.ca/whirlpool-wp6-3705180-idler-arm-and-shaft-for-dryer