Motobilt offers full-replacement, weld-together cage kits for Jeep JKU, JLU and JT Gladiator platforms. Each kit is designed around its specific Jeep body, interior and top configuration rather than presented as a universal cage.
Use this guide to compare platform fitment, tubing, included structural components and installation requirements. Review the linked product page and assembly instructions for the exact kit before ordering.
JKU Cage Kit – MB3033
The Classic 4-Door Wrangler Upgrade
The factory JKU cage looks the part, but it’s little more than stamped steel shaped to resemble something tubular. Our MB3033 kit replaces that entire setup with 1.75” x .120” DOM tubing, precision-cut and CNC-bent for a consistent fit.
Key features:
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True full replacement cage—not a bolt-on sport cage add-on
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A-pillars added to support the windshield section
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Rear support structure with new C-pillar and X-bracing
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Pre-notched + labeled tubes for straightforward mockup and welding
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Expanded mounting footprint—from 4 factory points to 8 Motobilt tie-ins
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Keeps factory seats, belts, and hard top
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Soft tops still work with minor modification
Optional tubes (included but not required) allow you to configure a front and rear harness bar system based on your needs.
The JKU cage is assembled inside the Jeep, removed for finish welding or coating, then reinstalled for final fitment—making it a true, customized interior upgrade for off-road use.
JLU Cage Kit – MB3045
Complete structural cage package for the 2018-current Wrangler JLU
The MB3045 is a full-replacement, weld-together roll cage kit for Jeep Wrangler JLU four-door models. The main hoops use 2-inch x 0.120-inch-wall DOM tubing, with 1.75-inch tubing used for specific crossmembers.
Included and fitment highlights
- 10 body tie-in points
- Dash V-bars, B-pillar harness bar, C-pillar X-bar and grab handles included
- Precision-cut and identified components
- Compatible with factory hard tops and factory soft tops
- Sky One-Touch Power Top can be made to work with modification; Motobilt does not currently have a dedicated One-Touch kit in development
- Retains factory seats—including 2024 power seats—and factory seat belts
- Factory soundbar and visors are not retained
- Some trimming of factory interior plastic panels is required
The primary structural components Motobilt offers for the MB3045 cage are included. Separate structural-option purchases are not required to build the cage configuration shown on the product page.
MB3045 ships secured on a pallet by freight truck. Motobilt calculates the freight charge from the delivery address and displays it at checkout before the order is placed.
The kit requires professional welding and fabrication. Use the Motobilt Dealer Locator or contact Motobilt for help finding a qualified installer.
Rockstar Garage Part 2 shows the separately sold MB3044 B-Pillar Chop Kit. That configuration is optional; MB3045 can be installed with the factory B-pillars retained.
JT Gladiator Cage Kit – MB3096
Full-length strength for the longest Jeep ever made
The Gladiator’s stretched interior and bed design introduce unique challenges—so we built a cage specifically for the JT chassis, not a repurposed Wrangler system.
Using a mix of 2” x .120” DOM for the main hoops and 1.75” DOM for crossmembers, this cage adds serious strength and an unmistakably aggressive look.
Key benefits:
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Six reinforced mounting points strengthen the JT’s long cab structure
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Laser-cut, etched parts guarantee a clean fit
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Compatible with:
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JT hard top
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JT soft top (with MB3052 door surrounds)
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Works with factory seats including 2024+ power seats
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Supports aftermarket harnesses
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Lighting provisions for Baja Designs dome lights
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Featuring:
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Grab handles
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Dash V-bars
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B-pillar harness-ready X-bar
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C-pillar harness bar
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Also pairs perfectly with our Motobilt half doors and optional B-pillar chop kit if you’re building a more aggressive, open-air JT.
How Motobilt Cages Are Built
Across all three platforms—JKU, JLU, and JT—every Motobilt cage shares a few core traits:
1. DOM tubing only.
We use high-grade drawn-over-mandrel steel, not ERW, not stamped metal.
2. Precision you can see.
Fiber-laser cutting, CNC tube bending, etched indexing marks, and pre-notched ends make assembly more intuitive for installers.
3. Weld-in design.
These are full replacement systems. They require:
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Removal of the factory cage
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Interior assembly
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Finish welding
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Painting/powder coating
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Final reinstallation
4. Off-road intention.
Our cages are purpose-built for off-road environments and are not designed for on-road use, racing, or motorsports.
Which Cage Is Right for You?
JKU (MB3033) – Best for JKU owners who want a full DOM replacement with the option to retain all factory features and maximize interior structure.
JLU (MB3045) – For 2018-current four-door Wrangler owners seeking the complete Motobilt cage package with 10 tie-in points, included bracing and compatibility notes for current factory seating and top configurations.
JT (MB3096) – Perfect for Gladiator owners who wheel hard and want a cage specifically engineered for the JT’s long cabin and unique geometry.
Ready to Build a Jeep Interior With Real Backbone?
Whether you’re reinforcing a rock crawler, building a trail rig that sees real miles, or simply replacing the stamped factory structure with something purpose-built, Motobilt has a cage kit engineered for your Jeep.
Main Photo Credit: ERIC HILBERT
