HPI Savage 21 Alloy Cylinder Head Heat Sink (13 fins) SAV1815 by GPM  [SAV1815]

Aluminium head cooler for Savage 21

This 13-fin aluminium head cooler matches model SAV1815 and is made for HPI Savage 21 cylinder heads. The fin array increases external surface area to help spread and shed heat more evenly during longer running sessions.

Compatibility is centred on HPI Savage 21 engines; verify your head dimensions and mounting layout before ordering. The item ships as a single set and attaches to the outside of the cylinder head without changing internal engine components.

Installation notes: check for clearance with the body and surrounding parts, align the heat sink with existing head mounting points, and use correct thread engagement for fasteners. Keep standard engine service routines and monitor head temperatures during break-in runs to confirm expected cooling performance.

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