The Frigidaire 131601000 idler spring helps maintain proper belt tension for smooth and reliable dryer operation. Designed as a replacement component for compatible dryers, it works by applying consistent tension to the idler pulley assembly, which keeps the drive belt properly aligned and engaged with the motor and drum. This tension allows the drum to rotate efficiently throughout drying cycles. Replacing a worn, stretched, or damaged idler spring can help restore proper belt performance, reduce operational issues, and support consistent drum movement. Built for dependable everyday use, this component offers a practical solution for maintaining dryer efficiency, supporting reliable performance, and helping extend the longevity of related drive system parts.