ITEM NAME:RC 1/10 Car 540 550 Motor Heatsink + Cooling Fan for 1:10 RC Car Truck Parts Description: Made from high quality aluminium alloy and plastic Easy to install and durable for protecting the motor from overheating For 1/10 RC racing car, 36mm diameter brush/brushless motor, such as 540/550 3650/3660/3665/3670/3674 motor Available for HSP, HPI, FS, Kyosho, , , WLtoys Main color: Red + Black Specification: Input Voltage: 5-8.45V Input Current: 1.5A Speed: 2100RPM Size Chart: Size (L x W x H): approx. 30 x 30 x 10mm/1.18 x 1.18 x 0.39inch Mounting hole: 24 x 24mm (Standard) Package Includes: 1 Piece Motor Heat Sink with Cooling Fan Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size. SKU: DMO0015982161015910.1 Piece Motor Heat Sink with Cooling Fan. Easy to install and durable for protecting the motor from overheating. Speed: 2100RPM. Size (L x W x H): approx. Mounting hole: 24 x 24mm (Standard). Available for HSP, HPI, FS, Kyosho,, , WLtoys.