Traxxas Revo Racing 12-Fin Heatsink Gold - RE-021/G by 3Racing  [RE-021/G]

Traxxas Revo 12 Fin Engine Heatsink - Gold Color - 3RACING RE-021/G
Price:
USD$13.90
Brand:
3Racing
Model:
RE-021/G
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Technical overview for Revo head cooling

The 3Racing RE-021/G is a precision-styled 12-fin engine heatsink engineered for use on Traxxas Revo heads. The gold finish increases exposed surface area to promote passive heat transfer and assist control of head temperature under race or endurance conditions.

Mounting and fitment: the heatsink is intended to align with standard Revo engine head fastening points. During installation verify clearance with the carburettor and air filter assembly, and confirm screw length and thread engagement to avoid contact with the head internals.

Performance notes: installing a finned heatsink like RE-021/G can reduce short-term temperature spikes and contribute to more repeatable engine behaviour across runs. Account for the heatsink height when configuring body clearance and intake geometry.

Inspection and service: keep fin channels free of compacted dirt and fuel residue, verify all fasteners after initial runs, and check for any contact with adjacent components following high-load use.

What head dimensions are required for fitment?

Confirm that your head uses the standard Traxxas Revo bolt pattern and that there is sufficient radial clearance for the heatsink fins once the air filter and carburettor are fitted.

Should I change screw material or length?

Use screws that provide full thread engagement without bottoming out; stainless or high-tensile screws are acceptable, but measure to avoid interference with the combustion chamber area.

How does this affect tuning consistency?

By moderating head temperature swings, the heatsink supports more consistent tuning across multiple runs, but always confirm changes using log or feel-based testing before race sessions.