HPI Savage 21 /Savage 25 /Savage X 13 Fin Engine Heatsink by 3Racing HSA-027/T  [HSA-027/T]

Fin heatsink for HPI Savage nitro models

This fin-style engine heatsink is a scale RC accessory intended for HPI Savage 21, Savage 25 and Savage X 13 models. It is finished in a titanium color and designed to fit the engine head area as an external cooling aid for nitro-powered RC setups.

Installation is straightforward for hobbyists familiar with nitro engine service: remove the stock cooling head or cap as required, position the heatsink over the engine head, and secure using the original mounting points or supplied hardware if applicable. Check clearance with the carburetor and surrounding components before final tightening.

On the bench or at the track this part serves a tuning support role rather than a standalone performance upgrade: it helps with thermal management during test runs and extended sessions and makes it easier to monitor and adjust engine settings based on temperature behavior.