Accessories:Heatsink-2pcsCooling Fan-1pcsPlug Adapter-1pcsStainless Steel Flat Head Screw 3x25-4pcsStainless Steel Round Head Screw 4*8-4pcsOriginal Name / Part No:ARA390295Product major functions & usage:Help cooling down the motorMajor advantages of upgrading to this part/product :1. Aluminum 6061 T6 is light material with high tensile strength for great durability during extreme RC action. This product brings a double cooling effect on the motor by providing a cooling fan on top of the heatsink.2. Easy installation by attaching the product directly on the motor.Suitable model :ARRMA 1/5 4WD OUTCAST 8S BLX-ARA5810