It is a genuine item that is supplied directly from the original equipment manufacturer for use with DeWALT equipment. The purpose of this switch is to control the on/off function of the tool, unfortunately, over time components will wear out and may begin to fail eventually requiring a replacement. Please make sure to refer to the approp...Read moreriate diagrams of your model for the correct location and application of this item. Keep in mind this high-quality plastic body switch is sold individually.