GMC Sierra Camper Shell | ARE Premium Truck Caps
Our CX-Series camper shell transforms your GMC Sierra into a weatherproof cargo vault. Engineered specifically for Sierra 1500, 2500HD, and 3500HD models, this cap matches your truck's roofline while adding 50+ cubic feet of lockable storage. We hand-fit every unit to Sierra body contours, ensuring factory-grade seals that keep moisture and dust out mile after mile.
Whether you're hauling gear to the jobsite or loading up for weekend trips, the CX-Series gives you walk-in access through double-locking rear doors and three side windows for interior visibility. The shell installs over your existing bed rails using our proprietary clamp system—no drilling required—and our RTM composite construction resists dents, rust, and UV fade better than aluminum or fiberglass alternatives.
What's Included with Your Sierra Shell
Construction & Materials
We build every GMC Sierra camper shell from Resin Transfer Molding (RTM) composite—a material originally developed for marine and aerospace applications. Unlike traditional fiberglass that cracks under impact or aluminum that dents and corrodes, RTM forms a single-piece shell with no seams or weak points. The process bonds reinforced fibers with resin under pressure, creating a structure that’s 30% lighter than fiberglass yet absorbs impact energy without permanent deformation.
Our Sierra shells include integrated roof ribs that distribute load across the entire cap, so you can mount roof racks, RTTs, or solar panels without worrying about stress cracks. The composite material won’t rust or oxidize, even in salt-heavy climates, and our UV-stabilized gelcoat resists chalking and color fade for decades. Every shell leaves our facility with a full-perimeter foam gasket that compresses against your truck’s bed rails, forming a dust-proof and water-resistant seal.
Fitment & Compatibility
Sierra Model Coverage
This camper shell fits all GMC Sierra generations from 2014 to current model year, covering 1500, 2500HD, and 3500HD variants. We manufacture specific molds for each cab configuration—Regular Cab, Double Cab, and Crew Cab—and every bed length from 5’8″ short bed through 8′ long bed. The shell’s rear edge aligns flush with your tailgate, and the front cap sits 1/8″ below your cab roofline to prevent wind noise at highway speeds.
Installation Requirements
Our clamp system mounts directly to your Sierra’s factory bed rails without drilling through the bed floor or sidewalls. You’ll need a 10mm socket, a Phillips screwdriver, and a second person to lift the shell onto the bed. We include adjustment shims to level the cap on trucks with aftermarket suspension lifts up to 3 inches. Owners switching from competitor models often note our shell sits lower and tighter than other brands—that’s because we measure Sierra body lines at the assembly plant, not from CAD files.
Access & Security Features
The CX-Series rear doors swing open 180 degrees on stainless steel piano hinges, giving you full-width access to load plywood sheets, toolboxes, or coolers. Each door locks independently with a rotary latch keyed to match your Sierra’s ignition (bring your truck key to the dealer at pickup, and we’ll rekey the locks on-site). Slam latches engage automatically when you close the doors—no fumbling with handles or secondary locks.
Three sliding side windows let you reach in for smaller items without opening the rear, and each window includes a removable screen insert for ventilation when you’re parked. The tinted safety glass blocks 65% of UV rays to protect cargo from sun damage, and the frames seal with EPDM rubber that stays flexible in sub-zero temperatures. Our interior dome light wires into your Sierra’s cargo lamp circuit, so it activates automatically when you unlock the truck or open the tailgate.
Shop Camper Shells for Other Makes & Models
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Common Questions About Our GMC Sierra Camper Shell
Yes—we manufacture shells for every Sierra bed length, including the 6.5' standard bed. When you order, specify your truck's year, model (1500/2500HD/3500HD), cab style, and bed length, and we'll pull the correct mold. The CX-Series fits 2014–current Sierra generations, so your 2023 is fully covered.
Absolutely. The CX-Series roof includes three integrated cross ribs rated for 300 lbs of static load when properly distributed. You can bolt aftermarket roof rack systems directly through the shell using the pre-marked drill points we provide, or use clamp-on racks that attach to the drip rails. Many owners mount rooftop tents, kayak carriers, and solar panels without issue.
We use a two-stage base/clear paint system identical to GMC's process, and we color-match using official GMC paint codes. The finish should blend seamlessly with your truck's panels when viewed in daylight. Keep in mind that paint on different materials (steel vs. composite) can show slight variations in metallic flake orientation, but most owners report they can't tell where the truck ends and the shell begins.
When you pick up your shell, bring your Sierra's ignition key to the dealer. We'll rekey the camper shell locks on-site to match your truck, so one key operates your ignition, doors, and shell. If you order online, we ship the shell with generic locks, and you can have any locksmith rekey them to your truck key for around $20–$30.
Most owners report a 1–2 MPG decrease in highway fuel economy due to increased aerodynamic drag. The CX-Series sits lower than some competitor caps, which helps minimize drag, but any camper shell adds frontal area and disrupts airflow over the bed. The RTM composite material is lighter than fiberglass, so you're not adding excessive weight—typically 120–140 lbs depending on bed length.
The clamp system allows removal, but we strongly recommend two people due to the shell's size and weight. Loosen the eight perimeter clamps (four per side), lift straight up, and set the shell on padded sawhorses. The process takes about 15 minutes with help. Most owners install seasonal roof racks or trade the shell between trucks rather than removing it frequently.
Our five-year structural warranty covers defects in the RTM composite material, including cracks, delamination, and hinge failures. The lifetime paint warranty covers peeling, blistering, and excessive UV fade—not rock chips or scratches from normal use. Moving parts like latches and window sliders have a one-year warranty. Keep your purchase receipt and register the shell online within 30 days of installation to activate full coverage.