This is the Hot Racing Monster 50 x 50 X11mm Blower Motor heat sink Fan with Mount for Arrma 1/10 4x4 BXL. The kit includes everything needed to add a forced-air motor cooling fan to the Arrma 1/10 4x4 BxlFEATURES: - Forced airflow over stock Arrma 1/10 brushless motor heat sink to increase cooling for improved efficiency and performance- Large 50x50x12mm 7-blade fan- 24AWG silicone wire EC5 adapter- Mini Deans plugYOU WILL RECEIVE: - Motor heat sink mount assembly with attached fan and connectorREQUIREMENTS: - Installation- Removable thread lock (e. g. blue Loctite) on fan mount screws- Ensure fan blades are protectedSPECIFICATIONS: - Fan Size: 50x50x11mm- Input Voltage: 11.1V (12V max)COMMENTS: - This will only work with Arma 1/10 4x4 BLX that has a Blushless motor with a Heat sink- Replacement fan is Hot Racing MH505F |