Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Works on Models w/ or w/o Deck Rail System
- Will NOT Work w/ Trail Special Edition Storage Boxes
Specifications
| Brand | Undercover |
|---|---|
| Part number | AX42018 |
| Material | Aluminum |
| Color | Black |
| Drilling Required | No |
| Lockable | No |
| Finish | Matte Black |
| Type | Hard |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific Fit |
| Paintable | No |
| Cover Material | Aluminum |
| Actual Color | Black |
| Cargo Light Included | No |
| Cargo Management System | With or Without Cargo Management System |
| Compatible with Bed Caps | No |
| Cover Color | Black |
| Design | Low Profile |
| Electric | No |
| Exclude from sync to O'Reilly's | true |
| Front Opening | No |
| Full Bed Access | Yes |
| Low Profile | Yes |
| Operation | Fold-Up |
| Painted | No |
| Rails To Install | No |
| Remote Control Included | No |
| Sits on Truck Rails | No |
| Style | Hard Folding Cover |
| Tool Box Compatible | No |
| Tool Box Included | No |
| Made in America | Yes |
| Country of Origin | US |
| Warranty | 5 Years |
| Weight (lbs) | 84 |
| Install time | Less than 1 hour |
| Difficulty | Level 1: Simple Installation |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
Features
- 11X MORE DURABLE AGAINST SCRATCHES: Tougher-than-tough Multi‑Shield™ coating defends against everyday scratches, scuffs, and wear.
- FULL BED ACCESS ANYTIME: 100% bed access all the time. Open the cover from either side with a simple pull of the cable, then fold to the cab, secure, and safely drive with the cover fully open.
- BUILT-IN SECURITY YOU CAN TRUST: Patented rail and clamp system with automatic slam latches lock down every panel to keep gear secure and out of sight.
- FITS TIGHTER TO KEEP WATER OUT: Upgraded seals and all-new tight-fit clamps provide superior state-of-the-art weather protection.
- BUILT STRONGER AND MORE DURABLE: Engineered for increased durability and heavy-duty use with a high-density polymer core protected with a premium-grade matte black aluminum exterior shell.
- EASIER TIP-AND-CLICK INSTALL: One-person DIY installation is now even faster with all-new click-in design. No need for an extra hand to help, and no drilling for most makes and models. Install yourself in under 30 minutes.
Fitment
| Years | Vehicle |
|---|---|
| 2022-2027 | Toyota Tundra (6'7" bed): w/o Trail Special Edition Package |
Use the fit check above with your truck selected, or ask a specialist if your trim isn't listed.
Installation
- Estimated install timeLess than 1 hour
- DifficultyLevel 1: Simple Installation
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
The ArmorFlex hard folding truck bed cover delivers total access, cutting-edge security, and maximum durability, built stronger and engineered for heavy-duty use in the toughest conditions. Its low-profile design sits nearly flush with the bed rails for a clean look while still supporting up to 400 lbs. of evenly distributed weight.
A high-density polymer core sits beneath a premium-grade matte black aluminum exterior shell, while a tougher-than-tough Multi-Shield™ coating makes the surface 11 times more durable against everyday scratches, scuffs, and wear. An exclusive soft-impact underside adds a padded layer of protection for shifting cargo, and the cover has been tested through extremes from negative 40 to 180 degrees Fahrenheit and up to 95 percent humidity for years of reliable use.
Getting into the bed is simple. Pull the release cable from either side of the truck, fold the cover toward the cab, and secure it in place for 100 percent bed access, all the time. It’s safe to drive with the cover fully open, and the slam latches reengage automatically as soon as it’s closed. A patented rail and clamp system with automatic slam latches locks down every panel to keep gear secure and out of sight, delivering built-in security you can trust.
Upgraded seals and all-new tight-fit clamps help the cover fit tighter than before, keeping out water, dust, and debris even in harsh weather. Installation uses RealTruck’s redesigned Tip-and-Click mounting system, enabling one-person installation in under 30 minutes, with no drilling required on most applications and no extra hand needed.
The ArmorFlex is proudly assembled in Missouri, backed by a 5-year warranty, and supported by dedicated product experts and a customer service team based in the USA.
PRODUCT HIGHLIGHTS
- 100 percent bed access, all the time, from either side
- Patented rail and clamp system with automatic slam latches for built-in security
- Premium-grade matte black aluminum exterior shell over a high-density polymer core
- Multi-Shield coating makes the surface 11 times more durable against scratches
- Exclusive soft-impact underside adds padded protection for shifting cargo
- Low-profile design sits nearly flush with the bed rails and supports up to 400 lbs.
- Upgraded seals and all-new tight-fit clamps fit tighter to keep out water, dust, and debris
- Tested through extremes from -40 to 180 degrees Fahrenheit and 95 percent humidity
- Proudly assembled in Missouri
- Redesigned Tip-and-Click mounting system for a one-person install in under 30 minutes—no drilling required
- 5-year warranty supported by dedicated product experts and a customer service team based in the USA
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
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