The pump is linked to the engine, and it pumps fluid (normal oil) in the torque converter. The turbine is connected to the gearbox, and it spins in the event the fluid from your pump hits it. The filters stop these contaminants from getting into the transmission and wreaking havoc. https://simonagfcy.daneblogger.com/33172996/the-ultimate-guide-to-filter-gearbox