Which power button fits the HP ProBook 640 G4? OEM part numbers

1 power button is documented for the HP ProBook 640 G4: L09552-001. 1 of 1 comes from OEM documentation (kaas.hpcloud.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old power button and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
L09552-001	HP power button board L09552-001	HP spare part: Power button board (includes cable). OEM documentation only; not bench-tested.	OEM documented	2026-11-12

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

1 of 1 fits are from OEM documentation (kaas.hpcloud.hp.com); each row links its source. Last checked 2026-11-12.

Are these power buttons 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) · Motherboard (10) · Service Part (4) · 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.