Which bottom cover fits the HP Elite c640 14 inch G3 Chromebook? OEM part numbers

3 bottom covers are documented for the HP Elite c640 14 inch G3 Chromebook: N12890-001, N12891-001, N13691-001. 2 of 3 come from OEM documentation (kaas.hpcloud.hp.com, support.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old bottom cover and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
N12890-001	HP bottom cover N12890-001	HP guide description: "Bottom cover: For use in models with WWAN". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
N12891-001	HP bottom cover N12891-001	HP guide description: "Bottom cover: For use in models with WLAN". OEM documentation only; not bench-tested.	OEM documented	2026-10-27
N13691-001	HP Bottom cover, 512 GB N13691-001	HP spare part: Bottom cover, 512 GB. Unverified source; not bench-tested.	Not sure (under 90%)	2026-11-12

Where do these HP Elite c640 14 inch G3 Chromebook bottom cover part numbers come from?

2 of 3 fits are from OEM documentation (kaas.hpcloud.hp.com, support.hp.com); each row links its source. Last checked 2026-11-12.

Are these bottom covers tested in the HP Elite c640 14 inch G3 Chromebook?

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 HP Elite c640 14 inch G3 Chromebook.

Other parts for the HP Elite c640 14 inch G3 Chromebook

Heat Sink (1) · Fan (1) · Battery (1) · Screen (19) · Power Adapter (12) · SSD (2) · Motherboard (13) · Keyboard (2) · Hinge (1) · Hinge Cover (1) · Power Cord (19) · Speakers (1) · Fingerprint Reader (4) · Memory (6) · Cable (8) · Card Reader (1) · I/O Board (2) · Wireless Card (2) · SIM Tray (1) · Display Cable (1) · Screw Kit (1) · Service Part (7)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-elite-c640-14-g3-chromebook) or the keyless JSON API.