Which service part fits the HP ProBook 640 G4? OEM part numbers

4 service parts are documented for the HP ProBook 640 G4: L09540-001, L09554-001, L15396-001, L21979-001. 4 of 4 come from OEM documentation (kaas.hpcloud.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old service part and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
L09540-001	HP Internal frame L09540-001	HP spare part: Internal frame. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
L09554-001	HP NFC module L09554-001	HP spare part: NFC module. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
L15396-001	HP Replacement caps for the pointing stick L15396-001	HP spare part: Pointing stick covers (20 pieces). OEM documentation only; not bench-tested.	OEM documented	2026-11-12
L21979-001	HP Document part number L21979-001	HP spare part: Document part number. OEM documentation only; not bench-tested.	OEM documented	2026-11-12

Where do these HP ProBook 640 G4 service part part numbers come from?

4 of 4 fits are from OEM documentation (kaas.hpcloud.hp.com); each row links its source. Last checked 2026-11-12.

Are these service parts tested in the HP ProBook 640 G4?

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 ProBook 640 G4.

Other parts for the HP ProBook 640 G4

Power Adapter (5) · Battery (1) · RTC Battery (2) · Display Bezel (2) · Cosmetic Plate (3) · Fingerprint Reader (2) · Display Cable (3) · Palmrest (2) · Screen (6) · Display Back Cover (2) · Bottom Cover (2) · Fan (1) · Heat Sink (2) · Hinge (2) · Keyboard (7) · Speakers (1) · Touchpad (4) · Camera (1) · Wireless Card (7) · Card Reader (1) · Microphone (1) · I/O Board (1) · SSD (8) · Power Cord (35) · Cable (1) · Power Button (1) · Motherboard (10) · Memory (3) · Antenna (1) · Hard Drive (5) · Screw Kit (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-640-g4) or the keyless JSON API.