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Threaded Replacement Packout Rails 12.6" (320mm) Compatible with Milwaukee Packout Rolling Tool Box 48-22-8426- Heavy Duty Aluminum Rails - Fits Packout Accessories - Black

  • Based on 84 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: Only 10 left in stock, order soon!
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Arrives Saturday, Dec 13
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Color: Black


Size: 12.6" (320mm) - 2 Pack


Features

  • DROP-IN REPLACEMENT RAILS: Drop-in rails with threaded inserts and hardware to mount anything you can imagine. A clean, stock-appearing look that unlocks endless possibilities. Get your Packout up to speed with the competition today. Shop our full line of Alpha Rail compatible accessories in our store.
  • FULL ACCESSORY SYSTEMS AVAILABLE: No more removing rails to change up your stack! You can now change things up within seconds. Extension cord mounts, level holders, tool rails, cross mounts, front Packout plates, and more are on the way. All accessories are designed to attach and detach from the Alpha rails as fast as you can remove one bolt.
  • COMES WITH END CAPS AND ALL HARDWARE: Injection molded, polypropylene end caps (with some secret ingredients) come included and installed. These caps make it extremely easy to install and they match the color and material of your red Packout. Each rail comes with an M8-1.25x25mm (13mm head) hex bolt for each threaded hole.
  • ALUMINUM DESIGN: Significantly stronger than OEM, even with the threaded holes. The infill volume is significantly more than the stock rails, this will be immediately apparent as soon as you hold them. No more breaking rails when a box slides around in the van or truck.

Description

Upgrade your Milwaukee Packout Rolling Tool Box (48-22-8426) with the Alpha Engineered 12.6" (320mm) Threaded Replacement Rails. Crafted from heavy-duty aluminum, these precision-engineered rails offer increased strength and long- lasting durability. Designed for a perfect fit, they are fully compatible with Milwaukee Packout accessories, allowing for expanded customization and improved organization. Whether you're adding tool mounts, brackets, or other accessories, these replacement rails provide a reliable and secure base. Easy to install and built for demanding use, they’re ideal for both professionals and serious DIYers looking to enhance their Packout system.

Brand: Alpha Engineered


Material: Aluminum


Color: Black


Product Dimensions: 1.16"L x 0.54"W x 12.6"H


Water Resistance Level: Water Resistant


Brand: ‎Alpha Engineered


Material: ‎Aluminum


Color: ‎Black


Product Dimensions: ‎1.16"L x 0.54"W x 12.6"H


Water Resistance Level: ‎Water Resistant


Number of Compartments: ‎3


Global Trade Identification Number: ‎75


Manufacturer: ‎CurvaNamic LLC


Part Number: ‎ARxxxx


Item Weight: ‎1.32 pounds


Item model number: ‎ARxxxx


Size: ‎12.6" (320mm) - 2 Pack


Number Of Pieces: ‎2


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: September 2, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Welding extension
Color: Silver Size: 7.7" (195mm) - 4 Pack
Great quality, design gives great availability for accessories for mobile boxes, used for table top for welding box. The fit was very tight. Able to use for many functions.
Reviewed in the United States on June 30, 2025 by Brian Perry

  • Good Quality
Color: Silver Size: 10.4" (265mm) - 4 Pack
What can I say if you’re into Milwaukee PO then you know these guys make great products they are on the expensive side but there is no substitute I needed a replacement for two of my rails that had gotten bent and swapping them out was easy and they thought of everything when you replace them you don’t need the extra caps that everyone else charges you for over all it’s a solid upgrade if that’s what you’re looking for they have a lot of product options and they are very quick to answer any questions you might have. ... show more
Reviewed in the United States on February 19, 2025 by Everett

  • Strong and a real upgrade worth the price.
Color: Black Size: 10.4" (265mm) - 4 Pack
I hope they make these for all the boxes that come out. Especially the other rolling pull out chest
Reviewed in the United States on September 26, 2025 by ArticWarKing

  • They fit very well. Very easy to install
Color: Silver Size: 10.4" (265mm) - 4 Pack
Nice rails. Great idea. To install simply drill out the tops of the OEM rails and they slide right out. Then slide the new ones in from the bottom and secure them with the provided Allen head fasteners.
Reviewed in the United States on February 20, 2025 by CarPartsAreMoreImportant CarPartsAreMoreImportant

  • An excellent solution to a Milwaukee design flaw
Color: Silver Size: 10.4" (265mm) - 4 Pack
These are far better than the retrofit solutions for the stock rails on the drawer boxes, and still allow the use of third party accessories, along with whatever you can think to bolt onto them with the included hardware. Nicely done.
Reviewed in the United States on July 4, 2025 by Time And Motion

  • Be prepared for a difficult installation.
Color: Black Size: 12.6" (320mm) - 2 Pack
Seem durable. Installation was slightly difficult had to pry on a brand new packout but it fits and hopefully soon enough there will be more attachments. It worked so it was worth the money.
Reviewed in the United States on April 7, 2025 by Kaitlin

  • it fulfills its function
Color: Black Size: 12.6" (320mm) - 2 Pack
I fit well in the box
Reviewed in the United States on October 18, 2025 by Diego Meléndez

  • Tough
Color: Black Size: 3.2" (81.5mm) - 4 Pack
Fit perfectly and add the extra support you need. 5 stars.
Reviewed in the United States on September 30, 2025 by Chizzle

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