An electrical connector installation tool including a frame and a screw ram. The frame includes a front end having an anvil section adapted to contact a front end of an electrical wedge connector shell, and a rear end having a threaded aperture. The screw ram has a front end, a rear end and a middle section. The front end is adapted to contact a rear end of an electrical wedge connector wedge. The middle section includes a threaded section which is connected to the threaded aperture of the frame to allow the screw ram to be screwed into the frame and thereby move the front end of the screw ram towards the anvil section.