High-speed aluminum fan for ARRMA 6S motors
This aluminum cooling fan assembly is an aftermarket accessory for ARRMA 6S platforms, built to support longer runs by directing airflow through the motor heatsink. The rotor housing is 6061-T6 aluminum while the fan cover is 7075-T6 aluminum to balance low mass and structural stiffness.
Compatibility is specific: the fan mounts to the ARRMA Motor Heatsink V2: 4074 (ARA390304). Use the heatsink mounting points and align the fan so it pushes air directly across the heatsink fins to maximize thermal transfer.
Key operational notes from the factory data: the fan measures 35x10mm, is rated near 20000 rpm with a tolerance of ±20%, uses dual ball bearings, nominal voltage 8.4V and typical current draw about 0.5A. Do not exceed 9V as overvoltage can harm the motor. The fan can be powered from a receiver or auxiliary output if the output can safely provide the required current.
Installation and service tips: the unit ships pre-assembled; apply a medium-strength threadlocker to mounting hardware to avoid screws loosening under vibration. Confirm clearance around the fan for wiring and moving suspension parts, and route the adapter cable away from heat sources or sharp edges to protect the insulation.
The package includes the fan assembly and mounting hardware ready for installation, plus an adapter cable to connect into your receiver or auxiliary output. Keep the included M3 nuts and grade 12.9 screws secure and check them after initial runs.
Compatible Models
- ARRMA 1/7 Talion 6S EXB 4X4 RTR Brushless Speed Truck-ARA7707V6
- ARRMA 1/8 Kraton 6S EXB 4X4 RTR Brushless Speed Truck-ARA8708V6
- ARRMA 1/8 Kraton 6S EXB AVC 4X4 RTR Brushless Speed Truck-ARA8708T1
- ARRMA 1/8 Notorious 6S V6 4X4 BLX Brushless Stunt Truck RTR-ARA8611V6
- ARRMA 1/8 Kraton 6S 4X4 RTR Brushless Speed Truck-ARA8608V6
For ARRMA 6S drivers using the specified heatsink, this compact aluminum fan offers a robust, high-speed airflow option to better control motor temperature during extended high-load operation.