DeWalt 326297-00 — Original DeWalt electronic speed-control module (220–240 V). Replacement electronic module used to restore variable-speed control on compatible DeWalt plunge / trim routers. This is the black control assembly that replaces the internal speed regulator so the router will hold the set RPM under load and respond normally to the speed dial. Fits DeWalt Router Model DW621 (Type 1 , 2 and 3)

Key details for repair: genuine DeWalt part number 326297-00 (electronic module), designed to plug into the tool’s existing wiring harness and match the original mounting / connector arrangement so it installs in the same location shown on the exploded diagram. It replaces the electronic/rheostat assembly and restores variable-speed regulation and load compensation in affected routers. (If your router is the 115 V variant, it is listed under part number 326297‑01).