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PowerPack Rack - Upgrade Kit - JLU/Bronco 4D

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PowerPack Rack – Upgrade Kit – JLU/Bronco 4D

Price range: $224.95 through $1,340.06

Convert your compatible Jeep Wrangler JLU or Ford Bronco 4-door M.A.S.S. Cargo Shelf to the power-ready mounting system used by the PowerPack Rack.

Includes two main aluminum shelf panels and battery mounting brackets for your selected KC HiLiTES 105Ah or 150Ah flat lithium battery configuration.

Batteries, wiring, chargers, switching, and electrical accessories are sold separately unless specifically selected as a product option.

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SKU: N/A Category: Cargo Management Brand: American Adventure Lab

Description
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For Existing JLU and Bronco 4-Door M.A.S.S. Cargo Shelf Owners

PowerPack Rack Upgrade Kit

Convert your compatible American Adventure Lab M.A.S.S. Cargo Shelf to the power-ready mounting system used by the PowerPack Rack.

If you already own our Jeep Wrangler JLU or Ford Bronco 4-door M.A.S.S. Cargo Shelf, this upgrade kit gives you the core shelf pieces needed to move into the PowerPack Rack layout without replacing your existing vehicle mounting brackets. The PowerPack Rack layout combines raised cargo shelf utility with dedicated mounting provisions for KC HiLiTES 105Ah or 150Ah flat lithium batteries and the REDARC BCDC Alpha 50. It is still a cargo shelf first, but it becomes a much cleaner foundation for a modern auxiliary power build. Important: Batteries, wiring, switching, chargers, solar hardware, outlets, and electrical accessories are sold separately unless specifically selected as a product option.

View Kit Contents View Compatibility

Built for current shelf owners

This kit is for customers who already have a compatible American Adventure Lab M.A.S.S. Cargo Shelf installed on a Jeep Wrangler JLU 4-door or Ford Bronco 4-door.

Reuse your existing vehicle mounting brackets.
Replace the standard shelf panels with PowerPack Rack main panels.
Add the battery mounting brackets for your selected battery size.
Move toward a cleaner auxiliary power layout without starting over.

Kit Includes

The conversion pieces for the PowerPack Rack shelf layout.

Two Main Aluminum Shelf Panels

The replacement main panels provide the PowerPack Rack shelf layout shared by the Jeep Wrangler JLU and Ford Bronco 4-door versions.

Battery Mounting Brackets

The kit includes battery mounting brackets matched to your selected KC HiLiTES flat battery size: 105Ah or 150Ah.

Power-Ready Shelf Architecture

The upgraded layout is designed around KC flat lithium battery mounting and REDARC BCDC Alpha 50 mounting provisions.

What Carries Over

Keep your vehicle-specific mounting brackets.

The upgrade kit is intended for existing American Adventure Lab M.A.S.S. Cargo Shelf owners. Your current vehicle-specific mounting brackets remain the foundation for the install, while the standard shelf panels are replaced with the PowerPack Rack panels and battery bracket system. Because the Jeep Wrangler JLU and Ford Bronco 4-door shelves share the same main panels, this single upgrade kit applies to both vehicle platforms.

Installation Note

Do not reuse the steel stiffening braces.

The traditional M.A.S.S. Cargo Shelf uses steel stiffening braces on the underside of the shelf. Those braces are not reused with this upgrade kit. The rigidity of the PowerPack Rack layout is enhanced by the battery mounting brackets and the battery itself, so the original underside stiffening braces are not needed in the upgraded configuration.

Power Component Mounting

Designed for the components serious trail builds already use.

The PowerPack Rack layout is built around KC HiLiTES flat lithium batteries in 105Ah and 150Ah sizes. These batteries tuck into the shelf structure instead of taking over the main cargo floor. The shelf also includes mounting provisions for the REDARC BCDC Alpha 50, giving installers and DIY builders a cleaner starting point for DC charging without fabricating a one-off mounting solution.

Why Upgrade

Add power-component mounting without giving up your shelf system.

Use Space Smarter

Flat lithium batteries mount within the shelf structure instead of consuming the cargo floor space you need for recovery gear, tools, fridges, camp equipment, and trip bags.

Keep Cargo Storage

You keep the raised shelf function that makes the M.A.S.S. Cargo Shelf useful, including the second level of organized storage above the factory load floor.

Retain Securement Utility

Dogbone and vertical cutouts continue to support single-stud tie-down rings, Mac’s VersaTie Hooks, bungee cords, and straps for securing trail and camp cargo.

Build Cleaner Power

Battery and charger mounting provisions are integrated into the shelf architecture, reducing the need for improvised brackets or a separate battery box on the cargo floor.

Compatibility

For compatible Jeep Wrangler JLU and Ford Bronco 4-door M.A.S.S. Cargo Shelves.

This upgrade kit applies to existing American Adventure Lab M.A.S.S. Cargo Shelves for the 2018-current Jeep Wrangler JLU 4-door and the 2021-current Ford Bronco 4-door, including Bronco Raptor, because these applications share the same main shelf panels.

Vehicle	Model Years	Body Style	Compatibility
Jeep Wrangler JLU	2018-current	4-door JLU	Compatible M.A.S.S. Cargo Shelf owners
Ford Bronco	2021-current	4-door Bronco	Compatible M.A.S.S. Cargo Shelf owners
Ford Bronco Raptor	2021-current where offered	4-door Bronco Raptor	Compatible M.A.S.S. Cargo Shelf owners

Fitment note: This kit is not intended for two-door Jeep Wrangler JL models, Jeep Wrangler JKU shelves, two-door Ford Bronco models, Bronco Sport, or customers who do not already have the compatible American Adventure Lab M.A.S.S. Cargo Shelf mounting system.

PowerPack Rack Upgrade Kit FAQ

Frequently Asked Questions

Who is this upgrade kit for?

This kit is for customers who already own a compatible American Adventure Lab M.A.S.S. Cargo Shelf for a Jeep Wrangler JLU 4-door or Ford Bronco 4-door and want to convert that shelf to the PowerPack Rack mounting layout.

What is included with the upgrade kit?

The kit includes two main aluminum shelf panels and battery mounting brackets for your selected battery size.

Do I reuse my existing M.A.S.S. Cargo Shelf mounting brackets?

Yes. The upgrade kit is designed so compatible existing JLU and Bronco 4-door M.A.S.S. Cargo Shelf owners can reuse their vehicle-specific mounting brackets.

Do I reuse the steel stiffening braces from my current shelf?

No. The steel stiffening braces from the underside of the traditional M.A.S.S. Cargo Shelf are not reused. The upgraded PowerPack Rack layout gains rigidity from the battery mounting brackets and the battery itself.

Does this kit include batteries, wiring, or a charger?

No. Batteries, wiring, switching, chargers, solar input hardware, outlets, and electrical accessories are sold separately unless specifically selected as a product option.

Which battery sizes does this support?

The PowerPack Rack layout is designed around KC HiLiTES flat lithium batteries in 105Ah and 150Ah sizes. Select the battery bracket configuration that matches the battery size you plan to run.

Why does one kit fit both JLU and Bronco 4-door shelves?

The Jeep Wrangler JLU and Ford Bronco 4-door M.A.S.S. Cargo Shelf applications share the same main shelf panels, so the PowerPack Rack upgrade panels apply to both platforms.

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