Consistent engine temperatures help deliver repeatable performance. The Tamiya 41052 Oversized Heat Sink is an upgrade for the FS-18 that increases the cooling surface to reduce thermal stress during prolonged operation.
This head employs an enlarged fin pattern, offering roughly 1.3 times the area of the stock unit and utilising eleven fins to improve heat dispersion and reduce peak temps under load.
Machined from aluminium with a red anodised finish, the heat sink provides resilience against wear while presenting a neat, engineered appearance on the engine.
The kit includes one oversized heat sink head, four 2.6x14mm cap screws, and an allen wrench for fitting. A separate head gasket (TAMG7006) is required for correct assembly and is not part of this package.
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