Abstract: An improved power steering motor seal performs three functions. The seal engages a tubular motor cylinder wall to prevent leakage of fluid between the wall and a housing. The seal also engages a rack bar to prevent fluid leakage between the rack bar and the housing. In addition, the seal blocks exposure of the housing, which is fluid pervious, to the fluid pressure in a motor chamber. The seal includes an annular body section which is disposed in a cavity in one end of the housing and engages the rack bar. The seal has a flange section which extends across the outer end of the housing into sealing engagement with the motor cylinder wall. A metal reinforcing member is provided to hold elastomeric sealing material in the flange section in sealing engagement with the inner surface of the motor cylinder wall.