The torque converter is what transfers electric power from your engine into the gearbox. It is just a fluid coupling that takes advantage of hydraulic force to multiply the torque of the engine. The torque converter is manufactured up of 3 main areas: the pump, the turbine, and the stator. https://fernandogryek.ziblogs.com/34205572/5-tips-about-filter-gearbox-you-can-use-today