Powerhobby Aluminum Motor Heatsink Cooling Fan 1/10 540 / 550 Size Motor Silver Traxxas Parts the mesh changes as the

the mesh changes as the gear rotates

Kyosho describes these as an enhanced type suited to high power engines

Genuine HPI Racing replacement part #109926

Woodland Scenics HO J

Powerhobby Aluminum Motor Heatsink Cooling Fan 1/10 540 / 550 Size Motor Silver Traxxas Parts the mesh changes as thePowerhobby Aluminum Motor Heatsink Cooling Fan For 1 10 540 550 Size Motor Fits : Most 1 10 Cars Trucks Buggies Rock Crawlers OVERVIEW Heat is the enemy, especially when it comes to electric motors. Keep your temperatures in check and your motor running efficient and cool with our Motor Heatsink with Twin Cooling Fan. The motor heatsink clips right onto your 540 or 550 sized motor, and features an anodized coating and multiple heatsink fins for added