Governor springs are critical to maintaining the speed of outdoor power equipment such as lawn mowers. They are important for keeping speed steady regardless of how hard the engine is working. Governor springs sense changes in the workload of outdoor power equipment and adjust the throttle for the operator. For example, when mowing a lawn, long grass or steep areas can influence the engine load. Without a governor spring, the mower would not maintain a steady speed and the throttle would need to be manually adjusted.This governor spring is a genuine OEM part that has been sourced directly from the manufacturer. This replacement governor spring fits a number of different types of outdoor power equipment including lawnmowers, trimmers, and chipper shredders. It is suitable for various Cub Cadet, MTD, Craftsman, and Troy-Bilt models. Please note these governor springs are genuine manufacturer parts and are sold individually.