Hard Drive HP OEM Mostly documented (90–99%) (some fits)
634862-001

HP Hard drive 320-GB 7200-rpm SATA 7.0-mm 634862-001

Which laptops does 634862-001 fit? 634862-001 (HP hard drive) is documented to fit 15 laptop models, including HP EliteBook 850 G2, HP EliteBook 750 G2 and HP ProBook 645 G1 and 12 more. Fits come from OEM documentation (HP service guide), last checked 2026-11-12; not bench-tested. Full compatibility list.

HP spare part description: "Hard drive 320-GB 7200-rpm SATA 7.0-mm". Documented OEM replacement; see each fit for configuration limits.

Compatible Business Laptop Models (15)

Devices documented to accept this OEM component. Compatibility from OEM documentation or a labelled source, with a confidence level on each fit; not bench-tested.

Installation: Not verified

Fits these models

ModelBrandLast checkedConfidence
HP EliteBook 850 G2 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 750 G2 All hard drive for this modelHP2026-11-04OEM documented
HP ProBook 645 G1 All hard drive for this modelHP2026-11-04OEM documented
HP ProBook 655 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 740 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 840 G1 All hard drive for this modelHP2026-11-04OEM documented
HP ZBook 14 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 750 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 850 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 725 G2 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 820 G1 All hard drive for this modelHP2026-11-04OEM documented
HP EliteBook 720 G1 All hard drive for this modelHP2026-11-04OEM documented
HP ZBook 15u G2 All hard drive for this modelHP2026-11-12OEM documented
HP ProBook 640 G1 All hard drive for this modelHP2026-11-12Mostly documented (90–99%)
HP ProBook 650 G1 All hard drive for this modelHP2026-11-12Mostly documented (90–99%)
Fitment Details:

HP description: "Hard drive 320-GB 7200-rpm SATA 7.0-mm". OEM documentation only; not bench-tested.

Source notes

HP Maintenance and Service Guide c04551620, PDF pages 41, 60; HP Maintenance and Service Guide, PDF pages 41, 60: "634862-001" (Hard drive 320-GB 7200-rpm SATA 7.0-mm). (via MG fold)

Fitment Details:

HP description: "Hard drive 320-GB 7200-rpm SATA 7.0-mm". OEM documentation only; not bench-tested.

Source notes

HP Maintenance and Service Guide c04551620, PDF pages 41, 60; HP Maintenance and Service Guide, PDF pages 41, 60: "634862-001" (Hard drive 320-GB 7200-rpm SATA 7.0-mm). (via MG fold)

Fitment Details:

HP description: "320-GB 7200-rpm SATA 7.0-mm hard drive, all models.". OEM documentation only; not bench-tested.

Source notes

HP Maintenance and Service Guide c04657844, PDF pages 45, 51, 55, 83: "634862-001" (320-GB 7200-rpm SATA 7.0-mm hard drive, all models.). (via MG-51 new-models fold)

Fitment Details:

HP description: "320-GB 7200-rpm SATA 7.0-mm hard drive, all models.". OEM documentation only; not bench-tested.

Source notes

HP Maintenance and Service Guide c04657844, PDF pages 45, 51, 55, 83: "634862-001" (320-GB 7200-rpm SATA 7.0-mm hard drive, all models.). (via MG-51 new-models fold)

Fitment Details:

HP description: "320-GB 7200-rpm SATA 7.0-mm hard drive, all models.". OEM documentation only; not bench-tested.

Source notes

HP Maintenance and Service Guide c04657844, PDF pages 45, 51, 55, 83: "634862-001" (320-GB 7200-rpm SATA 7.0-mm hard drive, all models.). (via MG-51 new-models fold)

Fits these models

Summary of the documented fits above (sources on each model card); not bench-tested.

ModelBrandType
HP EliteBook 850 G2HPBusiness laptop
HP EliteBook 750 G2HPBusiness laptop
HP ProBook 645 G1HPBusiness laptop
HP ProBook 655 G1HPBusiness laptop
HP EliteBook 740 G1HPBusiness laptop
HP EliteBook 840 G1HPBusiness laptop
HP ZBook 14 G1HPBusiness laptop
HP EliteBook 750 G1HPBusiness laptop
HP EliteBook 850 G1HPBusiness laptop
HP EliteBook 725 G2HPBusiness laptop
HP EliteBook 820 G1HPBusiness laptop
HP EliteBook 720 G1HPBusiness laptop
HP ZBook 15u G2HPBusiness laptop
HP ProBook 640 G1HPBusiness laptop
HP ProBook 650 G1HPBusiness laptop

Which hard drive fits each model?

and 9 more in the compatibility table

How to replace it

Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP service guide

Key facts

Part number
634862-001
Type
Hard Drive
Brand
HP
Fits
15 catalog models
Evidence
OEM documented: 13, Mostly documented (90-99%): 2
Source
h10032.www1.hp.com
Last checked
2026-11-12
Tested
Not bench-tested; documentation only
Machine-readable
JSON, Markdown