Which heat sink fits the Lenovo IdeaPad 3 15ADA05? OEM part numbers

3 heat sinks are documented for the Lenovo IdeaPad 3 15ADA05: 5H40S20052, 5H40S20053, 5H40S20054. 3 of 3 come from OEM documentation (pcsupport.lenovo.com); last checked 2026-11-04. Not bench-tested: match the number on your old heat sink and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
5H40S20052	Lenovo Heatsink L 81W1 UMA 5H40S20052	Lenovo description: "Heatsink L 81W1 UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20053	Lenovo Heatsink L 81W1 UMA 5H40S20053	Lenovo description: "Heatsink L 81W1 UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20054	Lenovo Heatsink L 81W1 UMA 5H40S20054	Lenovo description: "Heatsink L 81W1 UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these Lenovo IdeaPad 3 15ADA05 heat sink part numbers come from?

3 of 3 fits are from OEM documentation (pcsupport.lenovo.com); each row links its source. Last checked 2026-11-04.

Are these heat sinks tested in the Lenovo IdeaPad 3 15ADA05?

No. Fits come from manufacturer or retailer documentation and are not bench-tested. Check the part number on your old part and any listed constraint.

All documented parts for the IdeaPad 3 15ADA05.

Other parts for the IdeaPad 3 15ADA05

Service Part (236) · Keyboard (279) · Screen (27) · Camera (5) · Cable (3) · Battery (10) · Display Bezel (1) · SSD (20) · Hard Drive (3) · Memory (15) · Screw Kit (8) · Wireless Card (2) · Fan (1) · Hinge Cover (5) · Hinge (1) · Power Adapter (18) · Motherboard (24) · I/O Board (2) · RTC Battery (3) · Bracket (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model lenovo-ideapad-3-15ada05) or the keyless JSON API.