GMC Sierra & Silverado 1500 2019-2025 6.5ft | TKMAUTO Aluminum Truck Bed Cap Side Windows

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GMC Sierra & Silverado Aluminum Truck Bed Cap with Slider Windows (2019-2025, 6.5ft Bed)

Built for work and adventure — automotive-grade tempered glass, integrated side sliders, and gull-wing access in a lightweight aluminum build.

Built for the 2019-2025 GMC Sierra & Chevrolet Silverado 1500, this aluminum truck cap delivers the strength and durability you need without the weight penalty of traditional steel toppers.

Once installed, your truck looks factory-fitted — purpose-built for the job site, the campsite, or anywhere in between.

Why Choose the Windowed Version?

Tinted Side Windows + Integrated Slider

Full-panel automotive-grade tempered glass on every side door — wide-view, impact-resistant, and tinted for privacy without sacrificing natural light. An integrated slider panel opens on demand for direct bed-side access or ventilation — no need to open the rear door.

Lightweight Aluminum Construction

Lighter than steel. Tougher than fiberglass. Won't rust, won't crack — built to outlast your truck.

Key Features & Specifications

Side Windows with Integrated Slider

Full-panel automotive-grade tempered glass spans each side door — wide-view, impact-resistant, and tinted for privacy without sacrificing natural light.

An integrated slider panel opens on demand for direct bed-side access or ventilation — no need to open the rear door. Lockable for job site and trailhead security.

Flush-mount aluminum framing and UV-resistant seals complete the weathertight, low-profile build.

Dual Full-Length T-Slot Roof Tracks

Full-length aluminum T-slot rails run the entire roof — strong, clean, and ready for crossbars, cargo carriers, or a rooftop tent. No drilling. Compatible with most universal T-slot systems.

Bolt-On Side Shelving System

Factory pre-drilled side walls let you mount shelving units, tool organizers, or gear trays directly to both interior walls — no modifications needed. Storage modules sold separately.

Gullwing Side Doors with Glass

Easy Access. Large gull-wing side doors with tinted tempered glass windows and gas struts allow full access to the front of your truck bed.

Lockable System. Each door has weather-sealed locks with a unified key system for security.

No-Drill Installation

Clamp System. Secure mounting to your 6.5ft bed without drilling holes in your truck bed rails.

Reversible. Can be removed without leaving permanent modifications to your truck.

Modular Design

Flat-Pack Shipping. 6-piece modular design allows efficient shipping and assembly with basic hand tools.

Assembly Time. 1-2 hours for assembly, 0.5-1 hour for installation to truck bed.

Replaceable Panels. Individual panels and windows can be replaced if damaged.

Load Capacity

Static Load (Parked). 850 lbs (385 kg) — Rooftop tent compatible when parked.

Dynamic Load (Moving). 450 lbs (205 kg) — Safe load capacity while driving.

Weatherproof Construction

Weather Sealing. A multi-point sealing system with precision-fitted EPDM gaskets around all windows and doors creates a fully enclosed, weather-tight interior — keeping cargo dry through heavy rain, car washes, and prolonged moisture exposure.

Rust-Resistant Build. High-strength aluminum alloy construction delivers corrosion resistance several times greater than steel, eliminating rust at the structural level and standing up to road salt, snow, and harsh seasonal cycles.

Cold-Weather Tested. Validated in extreme cold across Canada, maintaining full seal integrity and structural performance in sub-zero temperatures — built for year-round reliability in the most demanding climates.

Perfect Fit for Your Truck

Application	GMC Sierra 1500 & Chevrolet Silverado 1500 (2019–2025)
Bed Fitment	6.5 ft standard bed
Primary Material	6000-Series Aluminum
Finish	Matte Black Powder Coat
Side Glass	Automotive-Grade Tempered, Tinted + Integrated Slider
Rear Door	Tinted Tempered Glass
Roof Tracks	Dual Full-Length T-Slot Aluminum Tracks
Interior Rails	Pre-Drilled Side Mounting Points (Storage Modules Sold Separately)
Mounting System	No-Drill Clamp System
Weight	~190 lbs (86 kg)

Questions

Can I open the side windows while driving?

Yes — designed for ventilation at low speeds. Close and lock at highway speeds for weatherproofing.

Will the slider rattle at highway speed?

No. Precision aluminum track with rubber-lined channels eliminates vibration at speed.

Is the side glass the same spec as the rear door glass?

Yes. All panels use the same automotive-grade tempered glass — consistent strength, tint, and UV protection throughout.

Can I lock the side sliders independently?

Yes. Each slider has its own lockable latch, separate from the gull-wing door locks.

What can I mount on the T-slot roof tracks?

Crossbars, cargo carriers, bike racks, rooftop tents — anything with a standard T-slot mount. No drilling required.

Can I mount shelving inside the cap?

Yes. Pre-drilled mounting points on both interior side walls accept bolt-on shelving, tool organizers, and gear trays. Storage modules sold separately.

Does installation require drilling?

No. The clamp system secures to your bed rails — fully reversible, no permanent modifications.

How long does installation take?

1-2 hours to assemble, plus 30-60 minutes to install on your truck.

Can I mount a rooftop tent?

Yes. Use crossbars on the T-slot tracks — rated for rooftop tents when parked.

Is it weatherproof?

Yes. A multi-point EPDM sealing system on all windows and doors, combined with an all-aluminum rust-proof structure, keeps water and dust out in all conditions.