HP Business Laptop

HP EliteBook 850 G4

Spare part numbers for the HP EliteBook 850 G4 come from HP's official Maintenance and Service Guide (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide). US keyboard layouts only. Parts vary by configuration, so match your original part number before ordering. Not bench-tested.

Compatible Replacement Parts (28)

Compatibility from OEM documentation, not bench-tested.

Keyboard

HP US non-backlit keyboard

OEM Part Number: 836621-001

HP US non-backlit keyboard. Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

United States layout; no backlight. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 2 / Keyboard section: "Keyboard - HP EliteBook 850 G4 Notebook PC models - Without a backlight (836621-xx1; -001 = United States)".) Last checked 2026-10-27
Keyboard

HP US backlit keyboard

OEM Part Number: 836623-001

HP US backlit keyboard. Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

United States layout; backlit. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 2 / Keyboard section: "Keyboard - HP EliteBook 850 G4 Notebook PC models - With a backlight (836623-xx1; -001 = United States)".) Last checked 2026-10-27
Palmrest

HP top cover (EliteBook 850)

OEM Part Number: 821191-001

HP top cover (EliteBook 850). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 3: "Top cover - HP EliteBook 850 G4 Notebook PC models".) Last checked 2026-10-27
I/O Board

HP power button board

OEM Part Number: 914750-001

HP power button board. Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 4: "Power button board".) Last checked 2026-10-27
Touchpad

HP touchpad button board (EliteBook 850)

OEM Part Number: 836620-001

HP touchpad button board (EliteBook 850). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

Without NFC antenna. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 5: "TouchPad - HP EliteBook 850 G4 Notebook PC models - Without NFC antenna".) Last checked 2026-10-27

HP touchpad (EliteBook 850 G4), with NFC antenna. Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

Including NFC antenna. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 5: "TouchPad - HP EliteBook 850 G4 Notebook PC models - Including NFC antenna".) Last checked 2026-10-27
Speakers

HP speaker kit 821170-001

OEM Part Number: 821170-001

HP spare part description: "Speaker assembly".

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p32, Computer major components table item 10: "Speakers (includes cable)".) Last checked 2026-10-27
Fingerprint Reader

HP fingerprint reader assembly (with cable)

OEM Part Number: 849912-001

HP fingerprint reader assembly (with cable). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

Models with a fingerprint reader. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p32, Computer major components table item 11: "Fingerprint reader assembly (includes cable)".) Last checked 2026-10-27
I/O Board

HP USB/audio board (with cable)

OEM Part Number: 916923-001

HP USB/audio board (with cable). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p32, Computer major components table item 12: "USB/audio board (includes cable)".) Last checked 2026-10-27

HP heat sink/thermal module with fans (15", discrete graphics). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

Discrete graphics models; HP spares the heat sink and fan as one assembly. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p33, Computer major components table items 15-16: "Heat sink/fan assembly - For use in models with discrete graphics".) Last checked 2026-10-27

HP heat sink/thermal module with fans (15", UMA graphics). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

UMA graphics models; HP spares the heat sink and fan as one assembly. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p33, Computer major components table items 15-16: "Heat sink/fan assembly - For use in models with UMA graphics (HP EliteBook 850 G4 Notebook PC models only)".) Last checked 2026-10-27
RTC Battery

HP RTC (CMOS) battery 914384-001

OEM Part Number: 914384-001

HP spare part description: "Battery for real-time clock (RTC)".

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p33, Computer major components table item 19: "RTC battery".) Last checked 2026-10-27
Battery

HP 3-cell 51Wh battery 854108-850

OEM Part Number: 854108-850

HP spare part description: "Battery pack (Primary) - 3-cell lithium-Ion (Li-Ion), 4.42Ah, 51Wh (TA03051XL-PL)".

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p33, Computer major components table item 22: "Battery (3 cell, 51 WHr, 4.42 Ah)".) Last checked 2026-10-27
Bottom Cover

HP bottom cover (15")

OEM Part Number: 821181-001

HP bottom cover (15"). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p33, Computer major components table item 23: "Bottom cover (includes RJ-45 door, feet, sponge) - HP EliteBook 850 G4 Notebook PC models".) Last checked 2026-10-27

HP touch display assembly (EliteBook 850 G4). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

Touch models only; touch display assemblies are spared only as whole units (hinge-up). OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p31, Computer major components table item 1: "Display assembly, touch - HP EliteBook 850 G4 Notebook PC models".) Last checked 2026-10-27
Display Bezel

HP display bezel (EliteBook 850)

OEM Part Number: 821183-001

HP display bezel (EliteBook 850). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p34, Display assembly subcomponents table item 1: "Bezel".) Last checked 2026-10-27
Hinge

HP hinges (15")

OEM Part Number: 821187-001

HP hinges (15"). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p34, Display assembly subcomponents table item 2-3: "Hinge Kit (includes left and right hinges)".) Last checked 2026-10-27
Camera

HP webcam 800575-020

OEM Part Number: 800575-020

HP spare part description: "Webcam module - 1p DM U2 Mjpeg 720p CTS - Includes dual-array microphone".

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p34, Display assembly subcomponents table item 5: "Webcam module (includes microphone)".) Last checked 2026-10-27
Display Cable

HP display/webcam cable (Cable Kit)

OEM Part Number: 914749-001

HP display/webcam cable (Cable Kit). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

HP lists this display/webcam cable as the Cable Kit. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p34, Display assembly subcomponents table item 6: "Display/webcam cable (HD/FHD and UHD) - 914749-001 (Cable Kit)".) Last checked 2026-10-27
Screen

HP HD raw display panel (EliteBook 850 G4)

OEM Part Number: 806864-005

HP HD raw display panel (EliteBook 850 G4). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

HD panel. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p35, Display assembly subcomponents table item 9: "Raw panel - HP EliteBook 850 G4 Notebook PC models - HD".) Last checked 2026-10-27
Screen

HP FHD raw display panel (EliteBook 850 G4)

OEM Part Number: 721363-016

HP FHD raw display panel (EliteBook 850 G4). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

FHD panel. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p35, Display assembly subcomponents table item 9: "Raw panel - HP EliteBook 850 G4 Notebook PC models - FHD".) Last checked 2026-10-27
Screen

HP UHD raw display panel (EliteBook 850 G4)

OEM Part Number: 813033-002

HP UHD raw display panel (EliteBook 850 G4). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

UHD panel. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p35, Display assembly subcomponents table item 9: "Raw panel - HP EliteBook 850 G4 Notebook PC models - UHD".) Last checked 2026-10-27
Display Back Cover

HP display back cover (HD raw panel)

OEM Part Number: 821180-001

HP display back cover (HD raw panel). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

HD/FHD models. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p35, Display assembly subcomponents table item 10: "Display enclosure (includes antennas) - HP EliteBook 850 G4 Notebook PC models - HD/FHD models".) Last checked 2026-10-27
Display Back Cover

HP display enclosure (UHD, with antennas)

OEM Part Number: 918428-001

HP display enclosure (UHD, with antennas). Documented OEM replacement; see each fit for configuration limits.

Fit & Installation Notes:

UHD models. OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p35, Display assembly subcomponents table item 10: "Display enclosure (includes antennas) - HP EliteBook 850 G4 Notebook PC models - UHD models".) Last checked 2026-10-27
Power Adapter

HP 710412-001 Power Adapter

OEM Part Number: 710412-001

65 W HP Smart AC adapter, non-PFC, 3-prong AC input; 4.5 mm barrel output

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p39, Miscellaneous parts (AC adapter, non-PFC, 4.5 mm): "AC adapter, non-PFC, 4.5 mm: 65 W HP Smart AC adapter, 3 prong".) Last checked 2026-10-27
Power Adapter

HP 65W 4.5 mm barrel AC adapter 714635-850

OEM Part Number: 714635-850

HP spare part description: "Smart EM AC adapter (65W) - 4.5mm barrel connector, non-power factor correcting (NFPC) - Requires separate 3-wire AC power cord with C5 connector".

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p39, Miscellaneous parts (AC adapter, non-PFC, 4.5 mm): "AC adapter, non-PFC, 4.5 mm: 65 W HP Smart AC adapter, 3 prong, EM (for use in HP EliteBook 850 G4 Notebook PC models)".) Last checked 2026-10-27
Power Adapter

HP 741727-001 Power Adapter

OEM Part Number: 741727-001

45 W HP Smart AC adapter, non-PFC; 4.5 mm barrel output

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p39, Miscellaneous parts (AC adapter, non-PFC, 4.5 mm): "AC adapter, non-PFC, 4.5 mm: 45 W HP Smart AC adapter, 3 prong (for use in HP EliteBook 850 G4 Notebook PC models)".) Last checked 2026-10-27
Power Adapter

HP 742436-001 Power Adapter

OEM Part Number: 742436-001

45 W HP Smart AC adapter, 2-prong AC input; 4.5 mm barrel output

Fit & Installation Notes:

OEM documentation only; not bench-tested.

Difficulty: Not verified Type: OEM Listed Replacement
Evidence Source: https://h10032.www1.hp.com/ctg/Manual/c05357619.pdf ↗ (HP EliteBook 850 G4 Notebook PC / ZBook 15u G4 Maintenance and Service Guide, PDF p39, Miscellaneous parts (AC adapter, non-PFC, 4.5 mm): "AC adapter, non-PFC, 4.5 mm: 45 W HP Smart AC adapter, 2 prong (for use in HP EliteBook 850 G4 Notebook PC models)".) Last checked 2026-10-27
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