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Dell Precision 7510 7520 bottom base assembly with USB-C port and smart card slot

DELL

DELL Precision 7510 7520 Bottom Base Assembly USB-C HDW1J

SKU CH-YWJZ-5XW9M

Replacement bottom base assembly for 15 Precision 7510 and 7520 laptops with USB-C port, includes battery bay spring latch

  • Genuine Dell OEM replacement part
  • Restores structural integrity for Precision 15 7510 and 7520 models
  • Includes USB-C port cutout for optional connectivity
  • Smart Card reader slot ready for security expansion
  • Battery bay spring latch included for secure fit

Replacement Base for Precision 15 7510 and 7520

This genuine Dell bottom base assembly replaces the lower chassis on Precision 15 7510 and 7520 laptops that already have the optional USB-C port fitted. It includes the USB-C port cut-out and the Smart Card reader slot, plus the battery bay spring latch. The part is new and carries Dell part number HDW1J.

Passive Chassis Component

As a structural part with no active electronics, this assembly draws no power, generates no heat and produces no noise. It simply restores the original mounting points and port alignment. Normal use places no thermal or electrical load on the component.

Repairs Cracked or Missing Lower Case

The part replaces a damaged, warped or missing bottom cover on compatible Precision 15 models equipped with USB-C. The upgrade is worth it when the original base is broken, the USB-C port opening is deformed or the Smart Card slot is unusable. It is not for laptops that never shipped with the optional USB-C port.

Highlights

  • Genuine Dell OEM replacement part
  • Restores structural integrity for Precision 15 7510 and 7520 models
  • Includes USB-C port cutout for optional connectivity
  • Smart Card reader slot ready for security expansion
  • Battery bay spring latch included for secure fit

Specifications

BrandDell

Questions about this item

How is the bottom base assembly installed, and which step is commonly missed?

Remove the old base, transfer the motherboard, daughter-boards and battery bay spring latch, then secure all screws; the step often missed is re-seating the USB-C daughter-board connector before closing the chassis.

What maintenance or replacement will this assembly need later?

The battery bay spring latch may fatigue over time and require replacement; the USB-C port itself can wear from repeated insertions and may need a daughter-board swap.

What limit appears first under sustained heavy use?

Thermal throttling of the CPU and GPU occurs once the heatsink and fan assembly can no longer dissipate heat through the base vents, reducing sustained performance.

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