Source notes
HP Maintenance and Service Guide c05270979 (Document Part Number 903116-001), PDF pages 29, 35, 43: "905771-001" (Hard drive cover; Service door). (via SOLO-22 pinned fold 2026-11-09)
Which laptops does 905771-001 fit? 905771-001 (HP bottom cover) is documented to fit 2 laptop models: HP ProBook 450 G4 and HP ProBook 455 G4. Fits come from OEM documentation (HP service guide), last checked 2026-11-09; not bench-tested. Full compatibility list.
HP spare part description: "Hard drive cover; Service door". 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.
Fit note for all 2 models: HP description: "Hard drive cover; Service door". OEM documentation only; not bench-tested.
| Model | Brand | Last checked | Confidence |
|---|---|---|---|
| HP ProBook 450 G4 All bottom cover for this model | HP | 2026-11-09 | OEM documented |
| HP ProBook 455 G4 All bottom cover for this model | HP | 2026-11-09 | OEM documented |
HP Maintenance and Service Guide c05270979 (Document Part Number 903116-001), PDF pages 29, 35, 43: "905771-001" (Hard drive cover; Service door). (via SOLO-22 pinned fold 2026-11-09)
HP Maintenance and Service Guide c05270979 (Document Part Number 903116-001), PDF pages 29, 35, 43, 46: "905771-001" (Hard drive cover; Service door). (via SOLO-22 pinned fold 2026-11-09)
Summary of the documented fits above (sources on each model card); not bench-tested.
| Model | Brand | Type |
|---|---|---|
| HP ProBook 450 G4 | HP | Business laptop |
| HP ProBook 455 G4 | 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
905771-001