The Frigidaire 131863007 Idler Arm Assembly helps maintain proper belt tension for smooth and efficient dryer operation. This replacement component is part of the dryer’s drive system and supports the movement of the drum during drying cycles. It works by applying consistent tension to the drive belt, helping keep the belt aligned and engaged with the motor and drum. Proper belt tensi... https://www.partsmelange.ca/frigidaire-131863007-idler-arm-assembly-for-dryer