Tamiya M04M Racing Motor Heatsink with Integrated Fan M04M-07/LB by 3Racing  [M04M-07/LB]

Tamiya M04M Aluminium Motor Heatsink W/ Cooling Fan - 3RACING M04M-07/LB
Price:
USD$7.50
Brand:
3Racing
Model:
M04M-07/LB
Condition:
Brand New
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Competition-grade fan-cooled heatsink for M04M

A precision aluminium heatsink with an integrated cooling fan engineered for mounting on Tamiya M04M motor endbells. The unit is intended to provide controlled airflow and additional thermal mass to stabilise motor behaviour in race and test environments.

Designed to increase convective cooling and surface area contact with the motor can, the heatsink slows temperature rise during extended high-load running. The result is reduced timing shift and mitigated power roll-off, which supports predictable lap times while refining gear ratios, motor timing and ESC maps.

Mount using the motor's endbell screws or compatible screw points, and route the fan supply to an appropriate low-voltage source. Confirm axial and radial clearance to pinion, spur and suspension parts before torqueing fasteners. Secure wiring to prevent contact with moving components.

Consider the heatsink as a tuning tool: it adds modest mass and a low-profile stack height above the motor and will influence transient thermal response. Use it alongside correct motor selection, ESC calibration and chassis airflow tuning to achieve repeatable race setups.

The added aluminium mass and forced airflow increase the thermal time constant, smoothing short-term temperature spikes and helping maintain steady operating temperature over multiple laps.
Use a dedicated low-voltage feed or switched BEC output with the correct connector and secure routing; avoid tying the fan into high-noise lines without suppression to prevent interference with telemetry or receiver inputs.
By reducing heat-induced timing drift and power sag, the heatsink can help keep RPM more consistent over long runs, but it will not increase peak RPM or replace correct gearing and motor selection.