Dead MacBook? Board-level repair & secure data recovery Worldwide mail-in
Account
+1 (818) 456-4479 Ships from USA
Categories
Macbooks
11" MacBook Air Parts
12" MacBook Parts
13" MacBook Air Parts
13" MacBook Pro Parts
14" MacBook Pro Parts
15" Macbook Air Parts
15" MacBook Pro Parts
16" MacBook Pro Parts
17" MacBook Pro Parts
Categories
Phones
Phones
Apple iPhone All Phones →
Categories
Screwdriver
Popular in Screwdriver
6 in 1 Steel Bit Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics 26 in 1 Aluminum Case Screwdriver Set with 24 Bits 32 in 1 Steel Bit Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics 32 in 1 Steel Bit Precision Pocket Screwdriver Tool Set with Case 40 in 1 Steel Bit Double Barrel Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics 46 in 1 Steel Bit Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics 86 in 1 Steel Bit Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics 130 in 1 Professional Multi Bit Screwdriver Precision Tools Set For All Gadgets 140 in 1 Steel Bit Precision Magnetic Screwdriver Tool Set with Case for Phone PC Electronics Kingsdun 31 in 1 S2 Steel Bit Precision Screwdriver Tool Set in Aluminum Case All Screwdriver
Categories
Cables
Popular in Cables
Apple 60W USB-C Woven Charge Cable Apple 240W Woven USB-C Charge Cable Apple Lightning to USB Cable All Cables
Need it installed? Mail-In Repair → Track Repair Status →
NO FIX, NO FEE Mail-In Repair

Certified technicians, 12-month warranty, free return shipping — worldwide.

Start — Mail-In Repair In Los Angeles? Walk-in & drop-off at our Canoga Park shop
Hardware
Software
Your Repair
NO DATA, NO CHARGE Data Recovery Service

Your data is not lost — it’s waiting to be rescued. Free evaluation, worldwide mail-in.

Start — Data Recovery Service In Los Angeles? Free drop-off evaluation at our Canoga Park lab
Storage
Devices
Specialized
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.
Replacement external bottom case enclosure lower panel for MacBook Pro 16-Inch.

MacBook Pro 16-inch A3403 M4 Pro Bottom Case 2024

$246.99

This premium MacBook Pro 16-Inch A3403 M4 Pro Bottom Case Replacement provides structural protection for internal electronic components. The lower enclosure panels align precisely with charging ports and thermal cooling vents. It fixes deformed frames and dented bases.
SKU: A3403-BC
Brand:
Primary Category: 2024 MacBook Pro A3403

Shipping: 5 - 9 days

–

TEKDEP Guaranteed Safe Checkout

Free USA Shipping & Worldwide Delivery

  • Fast Worldwide Shipping & Delivery.
  • No-Risk Money Back Guarantee!
  • Secure Payments & Free Warranty

Online Exclusive: This product ships directly to your address. In-store pickup at our repair facilities is not available.

Product Specifications

General

SKU
A3403-BC
Brand
Apple
Year
2024
Color
Space Black
Material
Alloy Steel
Model Number
A3403

Additional Details

Compatibility
MacBook Pro 16" Family Model: A3403
NOTE: Please verify your device's model number to ensure that this part is compatible.
Whats in the box
Bottom Case

Description

This A3403 Bottom Case for 2024 MacBook Pro 16″M4 Pro replaces the lower chassis, restoring structural stability and alignment between internal components. The part secures ports, connectors, and internal hardware while addressing damage from drops, warping, or wear. Replacing this case ensures proper closure with the top housing and maintains device durability during daily use.

  • Protects internal logic boards and battery packs from physical impacts by offering a rigid outer metal shield.
  • Fixes warped or twisted laptop enclosures to allow seamless alignment between the lower body and top screen lid.
  • Maintains standard airflow distributions through accurately placed exhaust vents to keep working temperatures low and stable.
  • Replaces dented aluminum shells, missing support feet, and scratched lower housing panels to return a smooth flat surface.

INSIDE OUR BUSINESS:

Master Your Repairs with the TEKDEP
Elite 145-in-1 Precision Set

Fix with precision, tackle iPhones, MacBooks, and gaming
laptops with ease using pro-grade magnetic control

Upgrade Your Toolset

recently viewed

Related Products

0T3Y7G Original Lower Bottom Case in Silver for the 2020 Dell XPS 13 9310 13.4"
9310 Original Lower Bottom Case 0T3Y7G Silver for 2020 Dell XPS 13″ 13.4″

-56% $25.77
Was: $59.00

SM10U60159 Original Lower Bottom Case for 2020 Lenovo ThinkPad X1 Carbon 14" Gen 8
20U9001PUS Original Lower Bottom Case Cover SM10U60159 for 2020 IBM Lenovo ThinkPad X1 Carbon 14″ Gen 8

$179.01

923-00528 Original SVC Inlet for 2013 Mac Pro A1481
A1481 Original SVC Inlet 923-00528 for 2013 Mac Pro

-17% $24.00
Was: $29.00

Product on Sales

HP L92337-001 40-Pin Laptop Inner LCD Screen (
L92337-001 Inner LCD Screen Replacement 11.6-Inch (40 Pins) Compatible with HP Laptops

Original price was: $100.00.Current price is: $82.88.

HP L38114-001 40-Pin Laptop LCD Screen Assembly
L38114-001 LCD Screen Assembly (40 Pins) Compatible with HP Laptops

Original price was: $400.00.Current price is: $366.88.

HP L62989-001 30-Pin Laptop Inner LCD Screen
L62989-001 Inner LCD Screen Replacement 14-Inch (30 Pins) Compatible with Hp Laptops

Price range: $245.88 through $258.88

People are also looking for

145 in 1 precision screwdriver set JM 8183 magnetic repair tool kit laptop phone electronics
TEKDEP Professional Tool Set 145-in-1 For Electronics, iPhone, Laptop, PC Repairs

-24% $45.00
Was: $59.00

Mail-in Repair & Services

Need Help with Installation?

Worldwide, our ValetTek Mail-In Repair Service offers a smooth and efficient repair experience.

Lost Data?

TEKDEP offers top-notch data recovery to retrieve your valuable information. To Learn more about our comprehensive Data Recovery Solution.

Questions?

Contact us at Call Us (818) 456-4479, email [email protected], utilize our Live Chat feature.
Get Your repair by professional, Fast & Secure Without leaving home
Fill out the form to get started! 👉

Official TEKDEP Tutorials

Subscribe for expert tutorials, pro tech tips, and teardowns.

Subscribe

Configure Specs