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Keeping your RC electric motor running cool is crucial for optimal performance and longevity. Overheating can lead to reduced power, component damage, and ultimately, a shorter lifespan for your valuable RC equipment. This guide will help you select the best heat sinks to ensure your motor operates at its peak.
This 540 550 motor heatsink Keeps motors cool ! Make your electric motor run more efficiently by keeping it cooler! Suit all 540,550 motor,stock and modified motors.Also great for electric powered boats.Ideal for Tamiya / HSP Minis or buggies
Made of high-quality material, CNC machined, decent and long-lasting with great thermal conductivity.
Up to 20000 RPM to provide excellent cooling effect to keep good motor performance.
Comes with adjustable mount with diameter of 47-51mm, perfect for 1/8 1/5 scale RC car brushless brushed motors, such as 4985 1717 to provide great cooling effect for various of RC cars.
This RC motor cooling fan supports 8-12V power supply, can be powered by the equipped 2S and 3S lipo balance connector, with a circuit breaker, which can be closed when not in use, 1A current when connected with12V power supply.
Package includes RC motor cooling fan with adjustable mount*1, screw*1 set.
▶【Wide Application】The 30mm RC motor cooling fans specially designed for 1/10 diameter 36/38mm brushless motor, such as 3650 3660 3665 3670 3674 540 550 brushless motor.
▶【Carbon Fiber Cover】Low thermal conductivity can quickly disperse the heat generated by the motor, keep the temperature of the motor stable, and improve the thermal management effect.
▶【Prevent Overheating】The RC motor heatsink speed can reach up to 28,000 RPM, which can reduce the temperature of the running motor and extend the service life of the brushless motor.
▶【JST Connector】This motor cooling fan adopts JST connector, the plug is not divided into positive and negative poles, easy to use, you don' worry the wrong connection will not work.
▶【Lightweight Material】The 36/38mm motor cooling fan is made of carbon fiber, plastic and aluminum alloy materials. Small size and light weight, it will not put extra burden on the motor.
The 380 heat sink is compatible with HSP HPI Wltoys Himoto Redcat 1/16 1/18 RC Car or can be fit for other brand rc car which has 380 390 size motors
This 380 Heatsink motor radiator fit for 380 390 size motor, it will come with a 5V cooling fan, to protect your motor.Easy to install, great replacement parts for your old or broken one.
390 Heat Sink Cooling Fan Size:30x30mm;Working Voltage:5V-6V; Can be powered up by the receiver or esc.Do NOT try the working voltage over to 7V.
390 Heatsink Cooling Fan Connector type:JST Male Plug;Cable length: 270mm/10.6";Main Color:Red/Blue/Black/Silver/Purple(Optional);
Keep your temperatures in check and your motor running efficient and cool with our heatsink and cooling fan combos.
Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best RC Electric Motor Heat Sinks
Installation and Compatibility
Installing a heat sink is generally straightforward, often involving simply pressing it onto the motor or securing it with small screws. Always check the compatibility with your motor's dimensions before purchasing. Consider the available space within your RC vehicle's chassis; some larger or fan-equipped heat sinks may require additional clearance. Proper installation ensures good thermal contact between the motor and the heat sink, maximizing cooling efficiency.
Frequently Asked Questions
Do I really need a heat sink for my RC motor?
A heat sink is highly recommended for most RC electric motors, especially those used for racing, bashing, or in hot weather. It helps prevent overheating, which can degrade performance and damage motor components.
How do I know which size heat sink to buy?
Measure the diameter of your RC motor's can. Heat sinks are typically specified by the motor diameter they fit, such as 540 or 550 size. Check the product description for exact dimensions.
Can a heat sink with a fan cool my motor better?
Yes, a heat sink with an integrated fan provides active cooling, which is significantly more effective than passive cooling alone. This is ideal for high-power applications or when running in very warm conditions.
Will a heat sink affect my motor's performance?
Properly installed, a heat sink should improve performance by allowing the motor to run cooler and maintain peak power output for longer. It prevents thermal throttling that can occur when motors overheat.
How do I clean and maintain my RC motor heat sink?
Most heat sinks can be cleaned with compressed air to remove dust and debris from the fins. If it's heavily soiled, a mild degreaser and a soft brush can be used, followed by thorough drying.
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