The wired thruster is a tool for the Wiremod addon that is used to give contraptions such as wired hovercars the ability to move.
This tool is used by simply opening up the 'Q' menu and then selecting it from the wiremod tab. It is then placed on a prop by left clicking. The force and model of the thruster can be easily changed from the tool settings in the 'Q' menu. This tool is mostly used together with the Wired Advanced Pod Controller to make contraptions such as cars and hovercars.