The Whirlpool WP691366 Idler Pulley Assembly for Dryer helps maintain proper tension on the drum drive belt for smooth and consistent operation. This replacement component supports the belt as it moves around the motor and drum, allowing the dryer drum to rotate correctly during a cycle. By keeping the belt properly aligned and tensioned, it can help reduce slipping, uneven movement, ... https://www.partsmelange.ca/whirlpool-wp691366-idler-pulley-assembly-for-dryer