U660 Auto Transmission Systems C1/C2 Drum U660E Transmission Clutch. OEM Part Number：U660E. Advanced heat dissipation design prevents overheating, maintaining optimal transmission performance. Excellent shock absorption protects internal components from wear caused by rough roads and violent vibration. Fitted with vibration buffer design, it secures gear assemblies against wear from frequent road jolts., Manufacturer: LOHFGTAR