Compatibility : This RC motor heat sink is specially designed for 540 / 550 / 3650/3660 motor of RC model car.(Used for moters with an outer diameter of 36mm.)
Protect Your Motor : The RC heat sink is equipped with 4.8-6V cooling fan to protect your motor.
Reliable Performance : RC electric motor heat sink has a good conductivity, RC motor heatsink keeps your temperatures in check and your motor running efficient and cool with our heatsink and cooling fan combos.
Prevent Overheating : It has a perfect heat dissipation effect, which can effectively prevent the motor from overheating.
Easy To Use : The cooling fan can power up from the receiver, convenient and easy to use.