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Black 14-inch Dell LCD back cover lid for Inspiron 3420 N4050 M4040

DELL

DELL 14" LCD Back Cover Lid Plastic 1GJPN Black for Inspiron N4050 M4040 3420

SKU CH-79Z1-ZY24N

Genuine Dell 14" LCD back cover lid in black for Inspiron N4050, M4040 and 3420 models, includes wireless antenna cables but not hinges

  • Genuine Dell OEM part ensures exact fit for Inspiron models
  • Includes wireless antenna cables for complete connectivity restoration
  • Black finish matches original laptop aesthetics perfectly
  • Compatible with Inspiron 3420, N4050 and M4040 series
  • Hinges not included — reuse existing hardware for installation

Genuine Dell 14" LCD Back Cover Lid

This genuine Dell replacement part is a black 14-inch LCD back cover lid assembly designed for Inspiron N4050, M4040, and 3420 laptops. It carries Dell part number 1GJPN and arrives in new condition. The component restores the exterior chassis of the display panel.

Includes wireless antenna cables without hinges

The package supplies the wireless antenna cables required for Wi-Fi connectivity inside the display assembly. Hinges are not included, so the original hinges must be reused or sourced separately to complete the installation.

Fits three Inspiron models for lid replacement

Compatible with Inspiron 3420, N4050, and M4040 systems needing a replacement display back cover. It is not suitable for other Dell series or screen sizes, and buyers requiring hinges or a full display assembly must obtain those parts separately.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 67% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameDell

Questions about this item

Will the hinges need to be sourced separately when fitting this lid?

Yes, the hinges are not included with this back cover, so you will need to reuse the original hinges or obtain replacements before installation.

Which compatible model number is most likely to reach its hinge‑mount limit first under daily opening and closing?

All listed models — Inspiron 3420, N4050 and M4040 — share the same 14″ lid design, so the hinge‑mount stress limit is identical across them.

Does the black plastic lid trap more heat than the original during all‑day use?

The lid is the same OEM black plastic used by Dell, so thermal behaviour matches the factory part and adds no extra heat retention.

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