Which fan fits the HP ProBook 645 G1? OEM part numbers

2 fans are documented for the HP ProBook 645 G1: 723524-001, 738685-001. 1 of 2 comes from OEM documentation (h10032.www1.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old fan and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
723524-001	HP Fan 723524-001	OEM documentation only; not bench-tested.	Mostly documented (90–99%)	2026-11-12
738685-001	HP cooling fan 738685-001	HP description: "Cooling fan". OEM documentation only; not bench-tested.	OEM documented	2026-11-04

Where do these HP ProBook 645 G1 fan part numbers come from?

1 of 2 fits are from OEM documentation (h10032.www1.hp.com); each row links its source. Last checked 2026-11-12.

Are these fans tested in the HP ProBook 645 G1?

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 G1.

Other parts for the HP ProBook 645 G1

Service Part (48) · Keyboard (198) · Speakers (1) · Touchpad (10) · Heat Sink (2) · Cable (3) · Bottom Cover (2) · Power Adapter (9) · Wireless Card (5) · Hard Drive (17) · RTC Battery (1) · Battery (4) · Camera (1) · Microphone (1) · SSD (16) · Display Cable (4) · Power Cord (16) · Screw Kit (1) · Memory (4) · Motherboard (70) · Display Bezel (6) · Hinge (1) · Screen (14) · Card Reader (3) · Service Door (4) · Hinge Cover (1)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-645-g1) or the keyless JSON API.