The Performance Tool W89399 GM Water Pump Remover and Installer Socket is explicitly created for application on models from 1993 to the present. This tool is also intended for use on Northstar 4.6-Litre and Aurora 4.0-Litre vehicles from 1997 onward. It features a 1/2-inch drive size and is constructed from chrome molybdenum. The packaging includes detailed instructions for use.