Heat Sink Lenovo OEM Part #: 5H41B77400

Lenovo heat sink 5H41B77400

Lenovo description: "Thermal Module KX3D5,UMA".

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Compatible Business Laptop Models (1)

Devices documented to accept this OEM component. Compatibility from OEM documentation, not bench-tested.

ThinkPad X13 Gen 4 (AMD)

Business Laptop Official support Installation: Not verified
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Fitment Details:

Listed in Lenovo's official parts lookup for the ThinkPad X13 Gen 4 (AMD). Lenovo description: "Thermal Module KX3D5,UMA". Parts vary by configuration; match your machine type and original FRU before ordering. OEM parts list only; not bench-tested.

Source:Lenovo Parts Lookup
Source notes

Lenovo Parts Lookup (pcsupport.lenovo.com) for ThinkPad X13 Gen 4 (AMD), machine type(s) 21J3, 21J4, lists FRU 5H41B77400 "Thermal Module KX3D5,UMA". Checked 2026-10-27.

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