Which touchpad fits the HP ProBook 645 G2? OEM part numbers

8 touchpads are documented for the HP ProBook 645 G2: 840719-001, 840720-001, 840721-001, 840751-001, 840752-001 and 3 more. 8 of 8 come from OEM documentation (h10032.www1.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old touchpad and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
840719-001	HP Top cover, 14 inch, with TouchPad 840719-001	HP description: "Top cover, 14 inch, with TouchPad". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
840720-001	HP Top cover, 14 inch, TouchPad and pointing stick 840720-001	HP description: "Top cover, 14 inch, TouchPad and pointing stick". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
840721-001	HP Top cover, 14 inch, TouchPad, on/off button, bracket 840721-001	HP description: "Top cover, 14 inch, TouchPad, on/off button, bracket". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
840751-001	HP Top cover, 15 inch, with TouchPad 840751-001	HP spare part: Top cover for 15" products with a TouchPad. OEM documentation only; not bench-tested.	OEM documented	2026-11-12
840752-001	HP Top cover, 15 inch, TouchPad and pointing stick 840752-001	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
840753-001	HP Top cover, 15 inch, TouchPad, on/off button, bracket 840753-001	OEM documentation only; not bench-tested.	OEM documented	2026-11-12
845170-001	HP Top cover, 14 inch, TouchPad, pointing stick, on/off button, 845170-001	HP description: "Top cover, 14 inch, TouchPad, pointing stick, on/off button, bracket". OEM documentation only; not bench-tested.	OEM documented	2026-11-04
845172-001	HP Top cover, 15 inch, TouchPad, pointing stick, on/off button, 845172-001	OEM documentation only; not bench-tested.	OEM documented	2026-11-12

Where do these HP ProBook 645 G2 touchpad part numbers come from?

8 of 8 fits are from OEM documentation (h10032.www1.hp.com); each row links its source. Last checked 2026-11-12.

Are these touchpads tested in the HP ProBook 645 G2?

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 645 G2.

Other parts for the HP ProBook 645 G2

Service Part (20) · Hinge Cover (5) · Keyboard (6) · Card Reader (1) · RTC Battery (1) · Fan (5) · Motherboard (33) · Fingerprint Reader (3) · Speakers (1) · I/O Board (1) · Bottom Cover (4) · Memory (5) · Wireless Card (1) · Battery (1) · Display Bezel (4) · Screen (8) · Cable (4) · Display Cable (4) · Display Back Cover (4) · SSD (30) · Hard Drive (6) · Power Adapter (5) · Antenna (2) · Screw Kit (2) · Hinge (3) · Camera (1) · Microphone (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-645-g2) or the keyless JSON API.