This listing is for (1) Dremel 2610004636 Electronic Assembly Part for Rotary Tool 4000, 4000120V as shown in the picture.

The Dremel 2610004636 Electronic Assembly is a replacement wear component designed for repair and maintenance applications on compatible Dremel variable-speed rotary tools. Installed within the tool's housing, the electronic assembly regulates motor speed and power delivery based on the variable-speed dial setting. A worn or failing electronic assembly may cause inconsistent speed control, unresponsive dial adjustment, or intermittent power delivery through repeated use. Replacing the electronic assembly helps support consistent speed regulation and reliable motor control during tool repair and maintenance. This part is compatible with models including 4000, 4000120V, and 4000127V (sold separately). Please refer to your tool's parts diagram to confirm proper fit before ordering. The electronic assembly is designed to fit securely within the tool's housing for proper alignment during use and is intended for users performing routine service work on compatible Dremel tool models.