Yeah Racing 540/550 Aluminum Heat Sink w/30mm High Speed Tornado Fan. This optional heat sink and fan set is perfect for any standard 540 or 550 sized motor. The fan features the use of a JST connector allowing you to connect to an open auxiliary port. Package includes one motor heat sink, one cooling fan and hardware.
- Perfect fit on any standard 540 or 550 size motor
- Made from aluminum for optimum heat transfer
- Anodized for a clean finish