Which laptops does 778186-001 fit? 778186-001 (HP hard drive) is documented to fit 11 laptop models, including HP ProBook 645 G1, HP ProBook 655 G1 and HP ProBook 430 G3 and 8 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, 500-GB 5400-rpm, 7.0-mm". Documented OEM replacement; see each fit for configuration limits.
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.
| Model | Brand | Last checked | Confidence |
|---|---|---|---|
| HP ProBook 645 G1 All hard drive for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 655 G1 All hard drive for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 430 G3 All hard drive for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 455 G4 All hard drive for this model | HP | 2026-11-09 | OEM documented |
| HP ProBook 440 G4 All hard drive for this model | HP | 2026-11-09 | OEM documented |
| HP ProBook 440 G3 All hard drive for this model | HP | 2026-11-10 | OEM documented |
| HP ProBook 450 G3 All hard drive for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 430 G4 All hard drive for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 450 G4 All hard drive for this model | HP | 2026-11-12 | OEM documented |
| HP ProBook 640 G1 All hard drive for this model | HP | 2026-11-12 | Mostly documented (90–99%) |
| HP ProBook 650 G1 All hard drive for this model | HP | 2026-11-12 | Mostly documented (90–99%) |
HP description: "Hard drive, 500-GB 5400-rpm, 7.0-mm". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF pages 51, 58, 68: "778186-001" (Hard drive, 500-GB 5400-rpm, 7.0-mm). (via MG fold)
HP description: "Hard drive, 500-GB 5400-rpm, 7.0-mm". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF pages 51, 58, 68: "778186-001" (Hard drive, 500-GB 5400-rpm, 7.0-mm). (via MG fold)
HP description: "Hard drive, 500 GB, 5400 rpm, 7 mm". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number 824551-001 (copy saved from support.hp.com), PDF pages 33, 36, 47: "778186-001" (Hard drive, 500 GB, 5400 rpm, 7 mm). (via MG fold)
Listed for this model in HP's Maintenance and Service Guide (see source page). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c05270979 (Document Part Number 903116-001), PDF pages 29, 35, 46: "778186-001" (For use in HP ProBook 455 G4 models, 500 GB, 5400 rpm, 7 mm). (via SOLO-22 pinned fold 2026-11-09)
HP description: "Hard drive, 500 GB, 5400 rpm, 7 mm". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c05269107 (Document Part Number 903114-001), PDF pages 28, 33, 44: "778186-001" (Hard drive, 500 GB, 5400 rpm, 7 mm). (via SOLO-22 pinned fold 2026-11-09)
HP spare part: 500-GB 5400-rpm hard drive. OEM documentation only; not bench-tested.
HP ProBook 440 G3 Maintenance and Service Guide c04825510, printed page 22: "500 GB, 5400 rpm, 7 mm 778186-001". (via SOLO-18 fold 2026-11-10)
HP spare part: Hard drive, 500 GB, 5400 rpm, 7 mm. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04825517, PDF page 33: "500 GB, 5400 rpm, 7 mm 778186-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: Hard drive, 500 GB, 5400 rpm, 7 mm. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c05271036, PDF page 27: "5400 rpm, 7 mm 778186-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: 500 GB, 5400 rpm, 7 mm. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c05270979, PDF page 35: "● 500 GB, 5400 rpm, 7 mm 778186-001". The fetched guide names this part for this model. (via v10 fold 2026-11-12)
HP spare part: 500-GB, 5400-rpm, 7.0-mm hard drive. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF page 51: "500-GB, 5400-rpm, 7.0-mm hard drive 778186-001". Content match to the fetched guide. (via v10 fold 2026-11-12)
HP spare part: 500-GB, 5400-rpm, 7.0-mm hard drive. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF page 51: "500-GB, 5400-rpm, 7.0-mm hard drive 778186-001". Content match to the fetched guide. (via v10 fold 2026-11-12)
Summary of the documented fits above (sources on each model card); not bench-tested.
| Model | Brand | Type |
|---|---|---|
| HP ProBook 645 G1 | HP | Business laptop |
| HP ProBook 655 G1 | HP | Business laptop |
| HP ProBook 430 G3 | HP | Business laptop |
| HP ProBook 455 G4 | HP | Business laptop |
| HP ProBook 440 G4 | HP | Business laptop |
| HP ProBook 440 G3 | HP | Business laptop |
| HP ProBook 450 G3 | HP | Business laptop |
| HP ProBook 430 G4 | HP | Business laptop |
| HP ProBook 450 G4 | HP | Business laptop |
| HP ProBook 640 G1 | HP | Business laptop |
| HP ProBook 650 G1 | HP | Business laptop |
Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP service guide
778186-001