Keep your Yokomo RPX4 speed controller running at peak performance with this genuine replacement cooling fan. Engineered specifically for the new RPX4 platform, this authentic spare part maintains optimal thermal management during intense racing sessions. Reliable cooling ensures your controller stays responsive and stable when competition heats up. Whether replacing a worn fan or building backup components, this OEM-spec part guarantees perfect fit and uncompromising performance. Don't let heat throttle your machine—equip it with genuine Yokomo cooling that refuses to fail when victory is on the line.