What is the diameter of the DW618 motor? Support November 12, 2020 16:14 Updated Follow Answer The diameter of the DW618 motor is 3-1/2". Related articles What is the diameter of the DWP611 motor? What cord sets are available for the DW616 and DW618 routers? What are the horizontal and vertical fan angles and the line lengths at a given working distance? Can other bulbs work in the DEWALT flashlights and floodlights? What are the dimensions of the mounting holes on the DW735 planer? Comments 0 comments Please sign in to leave a comment.