The 3Racing 540 Motor Extended Heat Sink with Fan is engineered to improve thermal management for sprint and endurance use. It increases the effective dissipation area and uses active airflow to remove heat from the motor can and endbell region, helping maintain torque under repeated high load cycles.
By combining added fin area with a dedicated fan, the assembly reduces peak temperatures and slows thermal drift during runs. That supports more predictable motor behavior, which is valuable when tuning gearing, timing or battery load for racing conditions.
Installation is straightforward and compatible with common 540 motor formats. The design secures to the motor to ensure consistent thermal contact and reliable cooling during aggressive driving and repeated heat cycles.