Which memory fits the HP ProBook 455 G4? OEM part numbers

2 memories are documented for the HP ProBook 455 G4: 862397-850, 862398-850. 2 of 2 come from OEM documentation (partsurfer.hp.com); last checked 2026-11-01. Not bench-tested: match the number on your old memory and any constraint before ordering.

Part number	Part	Constraints	Confidence	Last checked
862397-850	HP Memory 862397-850	HP PartSurfer lists this spare part number for the HP ProBook 455 G4 (product no. 1JR85UT).	OEM documented	2026-11-01
862398-850	HP Memory 862398-850	HP PartSurfer lists this spare part number for the HP ProBook 455 G4 (product no. 1JR85UT).	OEM documented	2026-11-01

Where do these HP ProBook 455 G4 memory part numbers come from?

2 of 2 fits are from OEM documentation (partsurfer.hp.com); each row links its source. Last checked 2026-11-01.

Are these memories tested in the HP ProBook 455 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 455 G4.

Other parts for the HP ProBook 455 G4

Battery (1) · Fan (1) · Bottom Cover (2) · Power Adapter (8) · Heat Sink (2) · Screen (6) · Keyboard (2) · SSD (3) · Hinge (1) · Display Bezel (4) · Display Cable (2) · I/O Board (3) · Wireless Card (5) · Fingerprint Reader (1) · Cable (7) · Display Back Cover (2) · Palmrest (1) · Speakers (1) · Camera (1) · Power Cord (29) · Service Part (12) · Hard Drive (7) · Microphone (1) · 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-455-g4) or the keyless JSON API.