HPI Savage 21 13-Fin Alloy Head Sink SAV1815 by GPM  [SAV1815]

13-fin aluminium head sink for Savage 21 engines

The 13-fin aluminium head sink corresponds to model SAV1815 and is suitable for HPI Savage 21 cylinder heads. The added fin area increases heat transfer to ambient air to assist cooling during lengthy runs.

Compatibility is limited to HPI Savage 21 fitment; always compare your cylinder head profile and mounting points prior to purchase. The product is supplied as a single set and is designed to mount externally without changing engine internals.

Installation guidance: confirm there is adequate clearance from bodywork and adjacent components, align the sink with the head mounting pattern, and engage fasteners correctly. Maintain normal engine service and observe head temperatures in early running to ensure the desired cooling effect.

Fit this aluminium 13-fin head sink as a direct aftermarket replacement to improve passive head cooling on compatible Savage 21 engines, and verify mechanical clearance before extended use.