This aluminum cooling fan assembly is offered as an aftermarket cooling aid for ARRMA 6S platforms, aimed at improving sustained performance by forcing air through the motor heatsink. The central housing is machined from 6061-T6 aluminum while the fan cover is 7075-T6 aluminum to add stiffness where needed.
Compatibility is specific: the fan is intended to mount to the ARRMA Motor Heatsink V2: 4074 (ARA390304). Match the heatsink mounting bosses and orient the fan so airflow crosses the fin stack for steady heat rejection.
Factory specifications indicate a 35x10mm fan rated around 20000 rpm with ±20% tolerance, fitted with dual ball bearings. Nominal voltage is 8.4V with typical current near 0.5A; do not drive the fan above 9V to avoid damage. The unit can be powered from a receiver or suitable auxiliary output if the circuit can supply the current.
For installation and upkeep: the fan arrives assembled; secure fasteners with a medium-strength threadlocker to resist vibration. Confirm there is clearance from moving parts and route the adapter cable away from hot components to protect the wiring.
The box contains the fan assembly, mounting hardware for installation, and an adapter cable for receiver or auxiliary power. Keep the M3 nuts and grade 12.9 screws tightened and inspect them after initial runs.
For heavy-use ARRMA 6S rigs fitted with the listed heatsink, this compact aluminum fan offers resilient high-speed airflow to help manage motor temperatures under repeated high-load sessions.
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