The torque converter is what transfers electric power through the engine into the gearbox. It is just a fluid coupling that makes use of hydraulic force to multiply the torque on the motor. The torque converter is made up of 3 main areas: the pump, the turbine, and the stator. https://johnathanwwtoj.blogdiloz.com/33093339/the-definitive-guide-to-filter-gearbox