The Speed Queen D510702 Dryer Thermostat Limit Black is a high-quality replacement part designed for select Speed Queen dryers. It serves as a safety device, automatically cutting off power to the heating element if the dryer overheats, preventing potential damage or fire hazards. This thermostat ensures the dryer maintains a safe operating temperature by resetting once it cools down.... https://www.hnkparts.com/d510702-speed-queen-thermostat-limit-blk