3Racing Traxxas Revo 12-Fin Engine Heatsink RE-021/P - RC Spare Part  [RE-021/P]

Compact 12-fin heatsink overview

This 12-fin heatsink is a simple aftermarket cooling and styling upgrade intended for Traxxas Revo engine heads. The part carries the model number RE-021/P and is finished in purple to match common Revo visual builds.

As a passive heat spreader the heatsink increases exposed surface area on the head to help dissipate heat during extended runs or heavy use. In practice that means more stable head temperatures and reduced thermal variation over longer sessions.

Installation notes: the heatsink is shaped for direct fit to the Revo head profile, so check clearance against your body shell, head studs and tuned pipe routing before tightening. Verify existing fasteners and head height for correct alignment and to avoid interference with chassis parts.

Tuning role: use this heatsink alongside proper airflow and engine setup; it assists thermal control but does not change internal engine timing or fuel requirements. Treat it as part of a complete cooling approach rather than a standalone performance mod.

This purple 12-fin heatsink is a reversible hop-up for owners who want modest passive cooling benefits plus a colour-matched look; confirm fitment on your specific Revo before purchase.