This aluminium heat sink holder is an aftermarket accessory built to suit Kyosho Mini-Z AWD cars, including MR-03 AWD chassis variants. It is cut to accept compact motor heat sinks and gives a stable bracket for passive cooling during extended practice laps.
Installation notes: pop off the body shell to reach the motor area, then locate the holder onto the MR-03 AWD motor mount points. Check motor clearance and correct alignment before fully tightening to avoid gear interference. Fit using existing chassis screw holes and confirm whether any screws are included in the listing.
Tuning role: the holder secures the motor and locates the heat sink to promote airflow and better thermal contact, which helps control motor temperatures in setup and tuning runs.
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