Introducing the Side 40x40mm HS Cooling Fan+Heatsink Mount for 40mm O.D. Motor, a must-have for radio control enthusiasts eager to optimize their vehicle’s performance. Crafted specifically for 40mm outer diameter brushed and brushless electric motors, this high-speed cooling fan and heatsink combination is ideal for 1/8-scale and Short Course models. The kit features a side-mounted high-speed cooling fan that is pre-wired, making installation a breeze and ensuring your motor stays cool even during the most demanding runs. The billet-machined aluminum alloy heatsink fan mount is both sturdy and reliable, designed to fit seamlessly onto most 40mm O.D. motor cans. With a selection of anodized colors including black, green, gunmetal, orange, purple, red, and silver, this cooling fan and heatsink not only enhances motor efficiency and power but also adds a sleek, stylish flair to your RC model. Elevate your RC experience with this essential upgrade, identified by Item# C25729GREEN.