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Location/task/design/function of torque converter lockup clutch - GF27.20-P-5101N

TRANSMISSION 722.9 in MODEL 171.4, 203, 230 up to Model Year 8 

TRANSMISSION 722.9 in MODEL 209, 211, 215, 219, 220 

TRANSMISSION 722.9 in MODEL 463.303/340/341 

Fig 1: Identifying Torque Converter Lockup Clutch Function
G07287865Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Torque converter lockup clutch, location The torque converter lockup clutch is integrated in the torque converter.  
Torque converter lockup clutch, task To minimize the power losses of the torque converter by reducing converter slip, to reduce engine speed as a result and to improve the efficiency of the transmission.  
Torque converter lockup clutch, design The external plate carrier (16a) is connected to the impeller (4) via the torque converter housing (17). The internal plate carrier (16b) is connected to the turbine wheel (2).  
Torque converter lockup clutch, function   GF27.20-P-5101-02N