This Integy high speed cooling fan moves a lot more air at 6 volts than the stock fan that comes with many of the Integy motor heatsink cooling fan combos. It's standard 30x30mm size makes it a great upgrade for that wimpy fan that is barely moving any air at a price that makes it a no brainer. This one will get the job done at 6 volts but can be run up to a maximum of 9.6VDC. The easiest way to power the fan would be with an empty socket of the receiver using a JST female to servo male plug wire harness (sold separately).
Includes: 1 - high speed cooling fan w/ male JST plug and 4 - mounting screws.
Note: This cooling fan is designed to be powered by DC voltage between 6.0V to 9.6V. Please make sure that your power source (receiver, battery pack, etc.) is able to supply consistent voltage no lower than 6.0V and no higher than 9.6V. Also, it's best to unplug the power to the fan when running in wet conditions.