Source notes
HP Maintenance and Service Guide c04823617, PDF page 2: "728342-003" (Maintenance and service guide document part number). (via MG fold)
Which laptops does 728342-003 fit? 728342-003 (HP service part) is documented to fit 4 laptop models: HP ProBook 645 G1, HP ProBook 655 G1, HP ProBook 640 G1 and HP ProBook 650 G1. Fits come from OEM documentation (HP service guide), last checked 2026-11-04; not bench-tested. Full compatibility list.
HP spare part description: "Maintenance and service guide document part number". 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 4 models: HP description: "Maintenance and service guide document part number". OEM documentation only; not bench-tested.
| Model | Brand | Last checked | Confidence |
|---|---|---|---|
| HP ProBook 645 G1 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 655 G1 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 640 G1 All service part for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 650 G1 All service part for this model | HP | 2026-11-04 | OEM documented |
HP Maintenance and Service Guide c04823617, PDF page 2: "728342-003" (Maintenance and service guide document part number). (via MG fold)
HP Maintenance and Service Guide c04823617, PDF page 2: "728342-003" (Maintenance and service guide document part number). (via MG fold)
HP Maintenance and Service Guide c04823617, PDF page 2: "728342-003" (Maintenance and service guide document part number). (via MG fold)
HP Maintenance and Service Guide c04823617, PDF page 2: "728342-003" (Maintenance and service guide document part number). (via MG fold)
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 640 G1 | HP | Business laptop |
| HP ProBook 650 G1 | HP | Business laptop |
Repair guides for the HP ProBook 650 G1: 23 guides
Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP service guide
728342-003