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

Alloy engine heat sink for Savage 21

This alloy engine heat sink is produced by GPM for HPI Savage 21 applications and matches the product name SAV1815. The part provides a 13-fin profile intended to increase exposed surface area on the engine head, allowing heat to dissipate more evenly during prolonged operation.

Fit and compatibility are limited to HPI Savage 21 engines as stated in the product name, confirm fitment against your existing cylinder head before installation. The heat sink is supplied as a single set, and it is designed to mount to the engine head profile without altering internal engine components.

Installation considerations: check clearance with your vehicle's body and surrounding parts, ensure the heat sink aligns with existing head mounting points, and use appropriate thread engagement for any retained screws. Maintain normal engine maintenance practices after fitting, and monitor head temperatures during initial runs to verify expected cooling behavior.

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