The torque converter is what transfers ability in the motor for the gearbox. It is a fluid coupling that employs hydraulic pressure to multiply the torque on the motor. The torque converter is produced up of 3 main parts: the pump, the turbine, along with the stator. Microsoft and DuckDuckGo https://filter-gearbox09764.webbuzzfeed.com/34591240/5-simple-statements-about-filter-gearbox-explained