RealTruck UnderCover Flex Hard Folding Tonneau Cover Fits 2004-2014 Ford F150, 2006-2008 Lincoln Mark LT, 6'7" Bed
- Material Aluminum
- Finish Gloss Black
- Install Less than 1 hour
- Difficulty Level 1: Simple Installation
Questions about fitment? Live chat or call 866-235-4715
Not Sure of Your Bed Size?
- Lower the tailgate.
- Measure along the bed floor from the bottom of the front wall (bulkhead) straight back to the tailgate opening, where the bed floor ends. Don't include the tailgate.
- Pick the listed bed size closest to your number.
Still unsure? Our team is available by phone or live chat to help verify fitment before you buy.
Couldn't load pickup availability
- Free shippingMost orders $500+
- 30-day returnsSee policy
- Warranty supportWe work with the maker
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
Specifications
| Brand | Undercover |
|---|---|
| Part number | FX21004 |
| Material | Aluminum |
| Color | Black |
| Drilling Required | No |
| Lockable | No |
| Finish | Gloss 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 | Without Cargo Channel System |
| Compatible with Bed Caps | No |
| Cover Color | Black |
| Design | Low Profile |
| Electric | No |
| Exclude from sync to O'Reilly's | true |
| Front Opening | Yes |
| Full Bed Access | Yes |
| Low Profile | Yes |
| Operation | Fold-Up |
| Painted | No |
| Rails To Install | Yes |
| Remote Control Included | No |
| Sits on Truck Rails | Yes |
| Style | Hard Folding Cover |
| Tool Box Compatible | No |
| Tool Box Included | No |
| Made in America | Yes |
| Country of Origin | US |
| Warranty | 3 Years |
| Weight (lbs) | 70 |
| Install time | Less than 1 hour |
| Difficulty | Level 1: Simple Installation |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
Features
- Premium hard-folding tonneau cover
- Easy-to-use tri-fold design
- Durable yet lightweight aluminum-skinned panels
- Corrosion-resistant gloss-black textured finish
- Flush, low-profile design
- EPDM rubber hinges, perimeter seals, and dual-action tailgate seal
- Integrated drain channels and tubes
- Offers complete full bed access when folded flush against the cab
- Simple no-drill installation
- 400-lb. weight rating (evenly distributed)
- Limited 3-year warranty
- Proudly Assembled in Missouri
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
For ultimate cargo protection, you can’t beat a rugged, hard tri-fold bed cover, like the UnderCover® Flex from RealTruck®. The premium truck bed cover offers a robust and secure hard-shell construction, easy-to-use folding design, low-profile aesthetic, and exceptional weather resistance, protecting your truck bed in all conditions.
The UnderCover Flex Tonneau Cover features rigid yet lightweight aluminum panel construction for superior durability. These panels are impact, abrasion, and cut-resistant—they can even support up to 400 pounds when evenly distributed. UnderCover treats the Flex Tonneau Cover with a durable gloss-black coating for superior corrosion resistance and sleek styling.
Accessing your truck’s cargo area is simple and quick—simply drop the tailgate, pull either of the cover’s release cables, and fold the cover onto itself toward the bulkhead. You can secure the cover in the ⅔ open position with the integrated safety straps or fold it flush against the rear window, securing it with built-in prop rods for 100-percent bed access. When you’re finished loading or unloading, close the tonneau cover, fasten and lock the tailgate, and your cargo in the bed is safer than your cargo in the cab. Installing the UnderCover Flex is just as easy using UnderCover’s clamp-on mounting system.
The UnderCover Flex is just as resistant to inclement weather as it is to theft. The tonneau cover’s EPDM rubber hinges, perimeter seals, and dual-action tailgate seal prevent moisture from seeping into the bed. Any water that slips past the side seals gets diverted through built-in water channels and out of integrated drain tubes, keeping your cargo dry.
UnderCover is a RealTruck® brand. When you order this tonneau cover or any other UnderCover product from us, you’re dealing directly with the manufacturer. We back each UnderCover Flex Tonneau Cover with a limited 3-year warranty against manufacturing and material defects.
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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