The present disclosure relates to a transmission (TM) mount that is capable of reducing costs and a weight by removing a separate stopper (component). The transmission (TM) mount improves handling performance taking advantage of elastic properties of a rubber component in a left/right direction (lateral direction). The stopper for a transmission (TM) mount includes a housing bracket into which an insulator is press-fitted, a lower plate which is positioned at a lower end of the insulator and connected, together with the housing bracket, to a vehicle body through a curling structure, an inner core which is disposed at a central portion of the insulator, and a bridge which is installed at a lower side of the inner core so as to control a lateral displacement. The bridge is tightly fixed to a fixing piece formed in the lower plate.