General description Good heat dissipation performance ensures safe and efficient operation of your RC car motor. This product effectively helps to form a better air channel, significantly improving the heat dissipation effect. Equipped with a 5V cooling fan, it conveniently protects the motor from overheating, making it an essential accessory for maintaining optimal performance. Technical specifications Item Type: RC Motor Heatsink Cooling Fan Cooling Fan Voltage: DC 5V Applicable Motor: 540, 550, 3650 Motor Color: Red + Blue Material: Aluminum Alloy + Plastic Fan Size: 30mm x 30mm x 10mm Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with 540, 550, and 3650 size motors for RC model cars Package Contents: 2 x Motor Heat Sink, 2 x Cooling Fan, 2 x Aluminum Cover Installation Easy and convenient to install and remove