Replacement CPU Cooling Fan for Vivibook Y406 Y406U Y406UA X420U X420UA FL3M x420 - 13NB0LA0M02011 (DFS5K121154912)

Replacement CPU cooling fan compatible with Vivibook models Y406, Y406U, Y406UA, X420U and X420UA (FL3M x420). Exact part number: 13NB0LA0M02011. Model/assembly ID: DFS5K121154912. Designed as a direct-fit swap for the original fan to restore proper CPU airflow and cooling performance.