Heatsink & CPU Cooling Fan for X280 Laptop — Parts 01LX665 / 01LX666

Replacement heatsink and CPU cooling fan assembly for X280 laptops. Matches part numbers 01LX665 and 01LX666 and is intended as a direct swap for a faulty or noisy original cooler. Restores proper CPU cooling and fan operation to help maintain system stability under load. Designed to fit the X280 chassis and connectors without modification — confirm part number compatibility with your machine before purchase.