Fit For Mercedes 722.6 Automatic Transmission Hydraulic Couplings Torque Converter. OEM NO : 722.6. Without moving mechanical contact during normal operation, torque converters offer exceptional durability and require minimal maintenance over the vehicle's lifetime. By absorbing torsional vibrations and shock loads, the torque converter protects sensitive transmission gears from damage during aggressive acceleration events. Without moving mechanical contact during normal operation, torque converters offer exceptional durability and require minimal maintenance over the vehicle's lifetime., Manufacturer: NADCFN