Original DeWalt Switch Assembly — Part No. N439829.

Direct-fit replacement switch for the DeWalt DCGG571 20V cordless grease gun (Type 1); replaces the factory switch to restore the tool’s on/off trigger function and reliable switching operation.

Sold as a single, genuine DeWalt switch assembly—listed on DeWalt parts diagrams and compatible parts listings for the DCGG571 series. Ideal when your grease gun has an intermittent or non‑responsive trigger and you need an exact factory‑matching replacement.