This is the Hot Racing Monster Blower clip-on universal heat sink and fan for the 1/8 Arrma Kraton BLX, Notorious BLX, Outcast BLX, Senton BLX, Talion BLX, and Typhon BLX or custom projects. FEATURES: - Forced airflow over motor heat sink to increase cooling for improved efficiency and performance- Large 50x50x11mm 7-blade fan- Clip-on design for simple installation- Black and Red anodized aluminum heat sink provides efficient heat transfer- Adapter with EC5- 12AWG and 24 AWG silicone wire YOU WILL RECEIVE: - One (1) clip-on heat sink with fan- One (1) EC5-style adapter connector REQUIREMENTS: - Installation- Recommended to loosen fan screws during installation, then tighten again after installation. This will help minimize tweaking and binding the fan. - Medium strength thread lock (blue threadlocking compound) on fan mount screws- Ensure fan blades are protected- This system uses a EC5 Connector. If your system uses another type of connector, you'll have to switch connectors, or use an adapter. See Hot Racing MH505F02 for equivalent system with a T-plug connector. SPECIFICATIONS: - Fan Size: 50x50x11mm- Input Voltage:22.2V (24V max)- Fits motors with a can diameter of 1.6 inches (40mm) COMMENTS: - For Use with single 6 cell pack- For two 3 cell pack Best use AON505F06- Replacement Hot Racing 50x50x11mm fan is MH505F8