SpeedTek RC 36mm Aluminum Motor Side Mount Heat Sink w/ Fan (Red)
 
This is an Aluminum Snap on 540/550 Motor Side Mount Heat Sink w/ Cooling Fan by SpeedTek RC.  It features durable fan which creates strong winds to help cool off the motor. It can be mounted on side.
 
Features:
For:  540 / 550 Motor
Material: Aluminum
Color: Red
Fan comes with Male & Female JST connectors.
Switching heat sensor
 
Specifications:
Height: 30mm
Width: 30mm
Length: 60mm
DC Fan Voltage: 7.2V
 
Includes:
(1) SpeedTek RC 36mm Aluminum Motor Side Mount Heat Sink w/ Fan (Red)