The Toro 100-1102 Lawn Mower Pulley Assembly helps transfer rotational power within the mower deck and drive system on compatible Toro lawn mower applications. This pulley assembly works with the belt and related components to maintain proper movement and power transmission during mower operation. It is a practical replacement for a worn, damaged, cracked, or faulty pulley that may cause belt slipping, unusual noise, or inconsistent component movement. Replacing the assembly can help restore proper belt engagement and support normal mower operation during routine maintenance and repair. It provides a suitable replacement when the original pulley assembly is no longer serviceable.