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Black plastic laptop bottom cover with screw holes and ventilation slots

NA

NA Bottom Case Cover for MSI Modern 15 MS-1551 M15 15.6" 307551D214 US Lower Base

SKU CH-8CT4-R6NF9

Replacement bottom case cover for 15.6 inch MSI Modern 15 MS-1551 M15 laptops

  • Case styleBottom Case
  • Fits MSI Modern 15 MS-1551 M15 15.6" models
  • Replaces damaged lower base with part 307551D214
  • Protects internal components from dust and impacts
  • New bottom case restores original laptop structure

Replacement Base Cover for MSI Modern 15

This bottom case cover fits the MSI Modern 15 MS-1551 M15 15.6" laptop using part number 307551D214. It restores the original lower chassis when the factory base is cracked or missing screw posts. The part matches the US keyboard layout cut-outs and hinge mounts exactly. Installers can reuse all existing internal brackets and rubber feet.

Thermal Access and Structural Integrity

The cover exposes the factory ventilation grilles so airflow follows the original thermal path without restriction. Fan noise and component temperatures remain unchanged because the internal ducting geometry is identical to the OEM design. No additional power draw is introduced since the part is purely mechanical. Replacing a damaged base prevents chassis flex that can stress the motherboard and cooling assembly.

How it compares

Measured against everything we stock in Laptop Carrying Cases & Bags, at today’s prices. Recalculated every night.

Price $48.99
Pricier than about 89% of the 5,942 comparable items (median $24.99).

Specifications

Size & build
Case styleBottom Case

Questions about this item

How do I install the 307551D214 bottom case on my MSI Modern 15 MS-1551 M15 15.6" and which step do people often get wrong?

Remove all screws from the old base, disconnect the battery cable before lifting the motherboard, then align the new 307551D214 cover screw posts carefully; the step most often missed is reconnecting the battery before securing the final screws.

What maintenance or replacement will the 307551D214 lower base need over time on this 15.6" laptop?

The 307551D214 bottom case itself requires no scheduled maintenance; replacement is only needed if the plastic cracks from impact or the screw bosses strip during repeated disassembly of the MS-1551 chassis.

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