LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image
LEER 100XQ Fiberglass Truck Cap product image

LEER Fiberglass Truck Caps – Premium Protection & Style

★★★★★4.8· thousands of reviews

Our LEER 100XQ represents decades of engineering excellence in fiberglass truck cap design. We built this cap for truck owners who demand factory-smooth paint finishes and weather-sealed protection without compromising bed access. The low-profile design hugs your truck's roofline while providing full standing height inside, making it equally at home on work sites and weekend adventures.

Every 100XQ leaves our facility with a complete aluminum frame system and stainless steel paddle latches that resist corrosion in coastal and winter climates. We custom-paint each cap to match your truck's exact factory color code, then cure the finish in our temperature-controlled booths for a showroom appearance that lasts.

Find Your LEER CapView Details
01
One-piece fiberglass construction with seamless reinforced corners
02
Factory-matched automotive paint with UV-resistant clear coat
03
Aluminum frame with stainless steel mounting clamps
04
Frameless side windows with secure slam latches
At a glance

Key construction details

One-piece fiberglass construction with seamless
Factory-matched automotive paint with UV-resista
Aluminum frame with stainless steel mounting cla
Frameless side windows with secure slam latches
Front sliding window with screen and locking mec
Fully carpeted headliner with integrated dome li
Fiberglass Construction & Paint Process
Product details

Fiberglass Construction & Paint Process

We manufacture every LEER fiberglass truck cap using a proprietary composite layup process that eliminates the thin spots common in budget caps. Our molds produce consistent wall thickness across the entire shell, which prevents the stress cracks and spider-web fractures that appear after a few seasons of temperature cycling.

The paint process begins with color-matched primer followed by multiple base coats and a UV-stabilized clear coat. We cure each layer at precise temperatures to achieve the same depth and gloss you see on new truck paint. This isn’t a vinyl wrap or spray-can finish—it’s an automotive-grade system that resists stone chips and oxidation for years. When owners explore our full fiberglass cap collection, they immediately notice the paint quality difference compared to aluminum or plastic alternatives.

Frame System & Mounting Hardware
Sizing & fit

Frame System & Mounting Hardware

The 100XQ rides on an extruded aluminum frame that distributes load across your truck bed rails without creating pressure points. We drill and tap every frame section to accept stainless steel mounting clamps—never self-tapping screws that strip out after the first removal.

Each clamp features a rubber isolation pad that grips your bed rail without marring the paint. You can remove and reinstall the cap dozens of times for seasonal use without loosening the fit. The front header bar integrates a cab seal that bridges the gap between your rear window and the cap, blocking wind noise and rain intrusion at highway speeds.

Styling

Window Configuration & Access Points

We equip the 100XQ with frameless side windows that slide open independently for ventilation without exposing your cargo to weather. Each window rides on nylon tracks and locks in the closed position with a cam-action latch. The tinted safety glass blocks UV rays while maintaining visibility for backing maneuvers.

The front slider opens to a 50-percent position and includes a removable screen for airflow when the cap is parked. This window gives you pass-through access to the cab for long items like fishing rods or lumber that won’t fit through the rear door. We seal every window opening with EPDM rubber that compresses for weather resistance but doesn’t dry out or crack in extreme temperatures.

Window Configuration & Access Points
Window Configuration & Access Points
Window Configuration & Access Points

Complete the look

Premium Fiberglass Cap Options


Customer reviews

Rated 4.8 by verified buyers

4.8
★★★★★
Based on verified reviews
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Perfect Paint Match on My Ram
I ordered the 100XQ in Granite Crystal and honestly can't tell where the truck paint ends and the cap begins. The color match is flawless and the clear coat has the same depth as my factory panels. Installation took about an hour at the dealer and it's been rock-solid through two winters of salt and snow.
M
Marcus T.
Verified buyer
★★★★★
Finally Upgraded From My Old Aluminum Cap
I ran an aluminum cap for years and always dealt with condensation and rattles. This LEER fiberglass unit is in a completely different class. The carpeted interior stays dry, the windows seal tight, and nothing squeaks even on rough forest roads. Should have made this switch a long time ago.
J
Jennifer K.
Verified buyer
★★★★★
Quality You Can See and Feel
The fiberglass is noticeably thicker than the caps I looked at from other brands. When you close the rear door you hear a solid thunk—not a tinny rattle. The paddle handles operate smoothly and the gas struts hold the door up perfectly every time.
R
Robert D.
Verified buyer
★★★★★
Great for Camping Gear Storage
We use our truck for weekend camping trips and this cap has been perfect. The side windows vent moisture when we're parked and the dome light makes packing at night so much easier. Everything stays completely dry even in heavy rain. The carpeted interior is a nice touch that protects our gear from scratches.
A
Amy L.
Verified buyer
★★★★★
Best Investment for My Work Truck
I haul tools and equipment daily and needed something secure and weatherproof. This 100XQ has protected thousands of dollars worth of gear for three years now. The locks are solid, the seals keep dust out, and the paint still looks new despite constant sun exposure at job sites.
C
Carlos R.
Verified buyer
★★★★★
Easy Removal for Seasonal Use
I take the cap off in summer for hauling dirt bikes and reinstall it in fall for hunting season. The clamp system makes this incredibly easy—just four clamps per side and it lifts right off with two people. The fit is just as tight after multiple removals as it was on day one.
B
Brandon M.
Verified buyer
★★★★★

Good to know

Common Questions About LEER Truck Caps

Fiberglass caps resist denting and maintain their shape over time, while aluminum caps can show dents from impact and may develop rattles as fasteners loosen. Our fiberglass construction also provides better insulation, reducing interior temperature swings and condensation. The composite material won't corrode in salt environments, whereas aluminum can oxidize and pit over years of exposure.

The paint finish on fiberglass integrates with the material itself rather than sitting on top like powder coating on metal. This means stone chips and scratches are less visible and easier to repair with touch-up paint.

Yes, we design our mounting systems to accommodate both drop-in and spray-in bed liners. The aluminum frame clamps adjust vertically to sit properly on bed rails with liner material up to one inch thick. For spray-in liners, we recommend asking your liner installer to mask the top surface of the bed rails so our clamps contact bare metal for the most secure fit.

If you have a drop-in liner with stake pocket covers, you may need to trim those covers slightly to clear the cap's mounting clamps. Most professional installers handle this adjustment during cap installation.

We offer factory-installed roof racks rated for 300 pounds that integrate into the cap's structure during manufacturing. These racks mount through the fiberglass into reinforced backing plates and include weatherproof seals.

Retrofit racks are not recommended because drilling through an installed cap risks compromising the weatherproof integrity and may void your warranty. If you think you'll need a rack, we suggest ordering it as a factory option so it's properly engineered into your specific cap model.

We back every LEER cap with a three-year limited warranty covering manufacturing defects in materials and workmanship. This includes the fiberglass shell, frame components, windows, hardware, and paint finish. The warranty transfers once to a subsequent owner if you sell the truck.

We also offer an optional extended warranty that covers an additional two years beyond the standard term. Normal wear items like weatherstripping and gas struts are covered for the first year, with replacement parts available through our dealer network.

Standard factory colors that match current truck models typically ship within four to six weeks from order date. Custom colors or match requests for older truck years may add two additional weeks as we mix and test the paint formula.

Production time includes color verification, layup, curing, paint application, hardware installation, and quality inspection. Your dealer will provide a more specific timeline based on current production schedules and your truck's specifications.

We recommend washing your cap with the same car wash soap you use on your truck, then applying a quality automotive wax twice per year. This protects the clear coat and maintains the glossy finish. Avoid automatic car washes with harsh brushes that can scratch the paint—touchless systems work well.

Check the weatherstripping annually and clean any dirt buildup from the sealing surfaces. Lubricate the door hinges and paddle latches with silicone spray to maintain smooth operation. The carpeted headliner can be vacuumed as needed to remove dust.

Yes, the fiberglass construction accepts automotive paint refinishing. A professional body shop can sand, prime, and repaint your cap to any color. The process is similar to repainting a car panel and typically costs less than a full vehicle respray since the cap is a single removable component.

We recommend using the same high-quality automotive urethane paint and clear coat system to maintain durability and UV resistance. A quality respray should last as long as the original factory finish when properly applied and cured.

The collection
Find Your Perfect LEER Fiberglass Cap
Custom-built to fit your truck's exact year, make, model, and bed length