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Dell Precision 15 7510 7520 bottom base assembly without USB-C port

DELL

DELL Precision 15 7510 7520 Bottom Base Assembly No USB-C 3K8M9

SKU CH-D7H8-4KNWM

Replacement bottom base assembly for Dell Precision 15 7510 and 7520 models without USB-C, includes battery bay spring latch

  • Genuine Dell OEM replacement part
  • Designed for Precision 15 7510 and 7520 models without USB-C
  • Includes Smart Card slot for secure authentication
  • Battery bay spring latch supplied for easy installation
  • Exact match for Dell part number 3K8M9

Compatible Laptop Base Assembly

This Dell Precision 15 bottom base assembly fits the 7510 and 7520 models that were built without the optional USB-C port. It includes the Smart Card slot and the battery bay spring latch. Technicians can use it to replace a damaged chassis on these specific workstation configurations.

Sustained Service Use

The part restores structural integrity and port alignment for daily mobile workloads. Because it matches the original mounting points, the laptop maintains its thermal and mechanical behaviour over extended periods. No modification is required during installation on the correct system.

Direct Chassis Replacement

This assembly replaces the factory base only on Precision 15 7510 or 7520 units lacking USB-C. It is not suitable for models that include the USB-C port, nor for other Dell series. Verify the part number 3K8M9 before ordering to avoid a mismatch.

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

Does the bottom base assembly generate any noise, heat or draw power during all-day use?

The assembly is a passive chassis part with no moving components or electronics, so it produces no noise, adds no heat and draws no power.

What existing laptop components must I already own for this base assembly to work?

You need a Dell Precision 15 7510 or 7520 that was built without the optional USB-C port, plus the internal hardware such as motherboard, battery and drives that mount into this chassis.

Will this base assembly fit alongside older hardware I may keep from a Precision 15 7510 or 7520?

Yes, it is guaranteed compatible with Precision 15 7510 and 7520 models lacking USB-C, so retained parts like the battery bay spring latch and other internal modules will install directly.

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