The Toro 991741 Gear-Worm is a genuine OEM replacement part specifically designed for various Toro snowthrower models. This essential component plays a critical role in the snowthrower's drive system, facilitating efficient power transfer and ensuring reliable operation in challenging winter conditions. Manufactured to Toro's original specifications, the 991741 Gear-Worm guarantees an optimal fit, superior durability, and consistent performance for your equipment, including Power Clear, CCR, and S-series units.