Which heat sink fits the Lenovo IdeaPad 3 15IIL05? OEM part numbers

6 heat sinks are documented for the Lenovo IdeaPad 3 15IIL05: 5H40S20046, 5H40S20047, 5H40S20048, 5H40S20248, 5H40S20249 and 1 more. 6 of 6 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
5H40S20046	Lenovo Heatsink L 81WE UMA 5H40S20046	Lenovo description: "Heatsink L 81WE UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20047	Lenovo Heatsink L 81WE UMA 5H40S20047	Lenovo description: "Heatsink L 81WE UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20048	Lenovo Heatsink L 81WE UMA 5H40S20048	Lenovo description: "Heatsink L 81WE UMA". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20248	Lenovo Heatsink L 81WE AVC DIS G3 5H40S20248	Lenovo description: "Heatsink L 81WE AVC DIS G3". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20249	Lenovo Heatsink L 81WE TAISOL DIS G3 5H40S20249	Lenovo description: "Heatsink L 81WE TAISOL DIS G3". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
5H40S20250	Lenovo Heatsink L 81WE WEIHONG DIS G3 5H40S20250	Lenovo description: "Heatsink L 81WE WEIHONG DIS G3". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these Lenovo IdeaPad 3 15IIL05 heat sink part numbers come from?

6 of 6 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 15IIL05?

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 15IIL05.

Other parts for the IdeaPad 3 15IIL05

Service Part (237) · Screen (30) · Camera (7) · Motherboard (30) · Wireless Card (2) · Cable (3) · Battery (10) · Display Bezel (1) · SSD (25) · Keyboard (248) · Hard Drive (3) · Memory (15) · Screw Kit (8) · Fan (1) · Hinge Cover (5) · I/O Board (2) · Hinge (1) · Power Adapter (27) · RTC Battery (2) · Display Back Cover (7) · Bracket (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model lenovo-ideapad-3-15iil05) or the keyless JSON API.