Traxxas Revo 12 Fin Head Heatsink RE-021/P by 3Racing  [RE-021/P]

Product summary and fit

A 12-fin aluminium-style heatsink designed as an aftermarket accessory for Traxxas Revo engine heads, supplied in a purple finish and identified as model RE-021/P. It is intended to blend with common Revo styling while adding passive cooling.

The heatsink works by spreading heat across a larger surface area on the engine head, which can reduce peak temperatures during longer sessions and help preserve consistent performance under load. It is a passive thermal aid rather than an active cooling mod.

Installation notes: built to match the general Revo head profile, so check that the body shell, head studs and exhaust routing do not create interference. Confirm head clearance and fastening compatibility before final installation.

Practical tuning advice: pair the heatsink with good body airflow and sensible engine setup to get reliable temperature control; it supports tuning stability but does not change internal engine specification.

A straightforward, reversible upgrade for Revo drivers seeking improved passive cooling and a purple accent; always verify fitment on your chassis before buying.