This aluminum cooling fan assembly is an aftermarket airflow upgrade for ARRMA 6S platforms, intended to assist thermal control during demanding driving. The rotor housing is 6061-T6 aluminum and the fan cover is 7075-T6 aluminum to combine light weight with rigidity for better track performance.
Compatibility is specific: the fan mounts to the ARRMA Motor Heatsink V2: 4074 (ARA390304). Align the fan to blow air across the heatsink fins and use the heatsink mounting points to secure the unit for consistent cooling during high-power runs.
Operational highlights from the factory data include a 35x10mm footprint, a nominal speed near 20000 rpm with ±20% tolerance, dual ball bearings, nominal voltage of 8.4V and typical current draw around 0.5A. Avoid running the fan above 9V to prevent damage. The supplied adapter cable makes it possible to connect to a receiver or a dedicated auxiliary output that can supply the current.
Installation notes: the fan ships assembled but apply a medium-strength threadlocker to the mounting screws to combat vibration. Verify there is no interference with steering or suspension travel and route cables away from heat sources to preserve insulation.
Contents of the package are the fan assembly, mounting hardware for the heatsink, and an adapter cable for power. Retain and periodically inspect the M3 nuts and grade 12.9 screws for tightness after initial runs.
For drivers pushing ARRMA 6S rigs hard, this compact aluminum fan gives a higher-flow cooling option to help keep motor temperatures under control during aggressive runs.
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