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Dell XPS 15z gray LCD back cover lid with hinges

DELL

DELL XPS 15z (L511z) Gray LCD Top Back Cover Lid 8R78P

SKU CH-73GZ-N73TP

Genuine Dell 15.6" LCD back cover assembly with hinges, antenna cables and hinge covers for the XPS 15z (L511z)

  • Accessory categoryLCD Top Back Cover Lid
  • Product colorGray
  • Genuine Dell replacement lid restores original look
  • 6 inch panel fits XPS 15z L511z exactly
  • Hinges and covers included for complete assembly
  • Wireless antenna cables integrated into the cover
  • New condition ensures flawless finish and fit

Genuine Dell XPS 15z Lid Replacement

This genuine Dell LCD top back cover lid is manufactured for the XPS 15z (L511z) laptop. It arrives new and includes the left and right hinges, hinge covers and wireless antenna cables pre-installed. The gray finish matches the original chassis colour. It is the direct replacement part number 8R78P for a damaged or worn lid assembly.

Passive Component No Power Draw

As a structural chassis part the lid assembly draws no power and produces no heat or noise during normal use. The integrated hinges operate mechanically without fans or electronic components. Thermal behaviour and acoustics are determined entirely by the laptop's internal cooling system once the cover is fitted.

Fits Only Dell XPS 15z L511z

Compatibility is limited to the Dell XPS 15z model L511z with a 15.6 inch display. The part will not align with other XPS series models or different screen sizes. Buyers who need a lid for another Dell laptop or a different generation XPS must source the correct part number for that specific chassis.

How it compares

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

Price $11.99
Cheaper than about 63% of the 8,808 comparable items (median $16.99).

Specifications

Product
Brand nameDELL
Part number8R78P
Accessory categoryLCD Top Back Cover Lid
Product colorGray

Questions about this item

How do I install the LCD top back cover lid on my Dell XPS 15z L511z, and what step do people often miss?

Remove the display bezel, disconnect the old panel's antenna cables, swap the hinges and covers, then reconnect the cables before snapping the bezel back on. People often forget to route the wireless antenna cables through the hinge channels.

What maintenance or replacement will the Dell XPS 15z L511z lid assembly need later?

The included left and right hinges may loosen over time; tightening their screws or replacing the hinge pair restores smooth opening. Antenna cables rarely fail but can be swapped if Wi-Fi drops.

What limit appears first on the Dell XPS 15z L511z lid under sustained daily opening and closing?

The hinge tension is the first limit; repeated cycles wear the internal friction surfaces, causing the lid to droop or fail to stay at an angle.

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