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The ARRMA ARA-2662 is a black anodized aluminum heatsink for 28mm-diameter motors, made for the 1/16 Mini Kraton 3S. Its multi-fin body pulls heat off the motor, and the built-in mount lets you add a cooling fan for more airflow. It is a small, focused upgrade for owners fighting motor heat on long or hard runs. Compared with generic clamp-on sinks, it is cut for this chassis, so fitment is the main reason to pick it.
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Lowest price we've seen: $8.99 on Nov 13 at Power Hobby. Tracked across 14 stores since Nov 13.
This is a genuine ARRMA Type D motor heatsink, part number ARA-2662. It is designed for the 1/16 Mini Kraton 3S and fits motors 28mm in diameter. It works as a replacement or upgrade part.
The heatsink is made from lightweight aluminum with a black anodized finish and an etched ARRMA logo. Its multi-fin design increases the surface area for cooling. It helps transfer heat away from the motor for more consistent performance in demanding driving.
An integrated fan mount lets you install a compatible cooling fan for additional motor-temperature control.
