Which heat sink fits the HP ProBook 450 G9? OEM part numbers

2 heat sinks are documented for the HP ProBook 450 G9: N03344-001, N03345-001. 1 of 2 comes from OEM documentation (support.hp.com, partsurfer.hp.com); last checked 2026-11-12. Not bench-tested: match the number on your old heat sink and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
N03344-001	HP heat sink N03344-001	HP spare part: Heat sink (includes replacement thermal material), Discrete graphics. Unverified source; not bench-tested.	Not sure (under 90%)	2026-11-12
N03345-001	HP heat sink N03345-001	Listed for all 8 checked HP ProBook 450 G9 product numbers. HP description: "SPS-HEATSINK UMA". Confirm your product number on HP PartSurfer before ordering. OEM parts list only; not bench-tested.	OEM documented	2026-10-23

Where do these HP ProBook 450 G9 heat sink part numbers come from?

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

Are these heat sinks tested in the HP ProBook 450 G9?

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 450 G9.

Other parts for the HP ProBook 450 G9

Power Adapter (48) · Fan (2) · Bottom Cover (2) · Speakers (1) · Cable (12) · RTC Battery (1) · Battery (2) · Screen (6) · Display Cable (1) · Display Back Cover (3) · Camera (3) · Display Bezel (5) · Hinge (1) · Touchpad (1) · Motherboard (16) · SSD (9) · Wireless Card (5) · I/O Board (1) · Power Cord (77) · Fingerprint Reader (3) · Antenna (1) · Service Part (11) · Microphone (1) · Screw Kit (1) · Keyboard (2) · Memory (3)

For AI agents: the same list as JSON from the free MCP server at /mcp (tool get_model_parts, model hp-probook-450-g9) or the keyless JSON API.