Original DeWalt 1006592-01 — Fan assembly engineered to restore proper cooling and airflow to your DeWalt rotary-hammer/drill. This genuine DeWalt replacement fits many models including D25601K, D25602K, D25603K, D25604, D25651K, D25652K, D25831K and D25851K. The part is a compact blower-style fan assembly (measuring roughly 82.5 × 82.5 × 22.6 mm) and is supplied as a single fan unit ready to install to replace a worn or damaged fan blade and housing. If your tool is overheating, noisy from a cracked blade, or losing airflow, this original DeWalt fan is a direct-fit service part commonly listed among DeWalt parts for those models.