Effective cooling matters for consistent nitro power. The Tamiya 41052 Oversized Heat Sink is an aftermarket head for the FS-18 that increases surface area to shed heat faster and help preserve engine consistency on extended sessions.
The head uses an enlarged fin array with eleven fins and a 1.3x increase in size versus the stock unit, giving extra surface area to move heat away from the combustion chamber and reduce the chance of overheating during long runs.
Built from red anodized aluminium for durability, the heat sink is corrosion resistant and adds a clean, race-ready look to your engine while standing up to regular use.
The kit contains one oversized heat sink head, four 2.6x14mm cap screws, and an allen wrench to aid fitting. A head gasket (TAMG7006) is required for correct installation but is not included in the set.
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