P/N: 01YU190, 01YU191, AT1AC002SS0, AT1AC002DT0, AT1HM002VV0, 5H40W36701, AT1HM002SS0, 5H40W36703, AT1HM002DT0, 5H40W36702. Lenovo ThinkPad T490 / T14 Gen 1 CPU Heatsink with Cooling Fan. It will not fit other submodels such as the T490s as that one uses a different heatsink.
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