Buy now, pay later with Learn More
Help
X

Need Help?

We've got you covered!

877-216-5446
Sales & Service Hours
X

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed

Sales

  • Monday to Saturday: 8am - midnight EST
  • Sunday: 9am - 10pm EST

Undercover Folding Tonneau Cover FX21004

Product Information
List Price:
$965.97
Our Price:
$814.00
Factory Mail-In Rebate - Free tailgate pad with the purchase of an UnderCover Flex Download the rebate form.
Rating:
5 (5 reviews)
Part #:
FX21004
UPC:
897197404724
Applications:

Description

Measure Your Truck Bed for a Tonneau Cover

Does your truck have a track system?

  • Panels constructed of aluminum with an FRP coating on top
  • EPDM seals provide maximum water resistance
  • FRP exterior panel stays cooler to the touch
  • Holds 300 lbs evenly distributed
  • 3 year warranty
  • Made in the USA

The Undercover Flex is constructed of Fiberglass reinforced polymer and aluminum. The aluminum provides structure and rigidity while the fiberglass reinforced polymer protects against scratches and dents. The Flex also utilizes EPDM rubber seals and hinges so it provides maximum security from rain and snow.
The Undercover Flex installs easily with no drilling thanks to the clamp-on design. You only need basic tools like a socket wrench to complete the installation on most vehicles. One of the best features the Flex offers is the ability for you to gain full bed access without having to remove the cover completely. You simply fold the cover panel by panel to the front of the bed, then attach the prop rods to secure it upright position. The truck can safely be driven with the cover in this position at highway speeds.
Undercover warrants this cover against any manufacturing defects for a period of 3 years. The cover also is made in the USA so you can rest easy knowing the quality is second to none.

View Available Part Numbers For This Product Line

Fits

  • (2004) Ford F150 New Bodyside Bed, 6'7" Bed
  • 2005-2009 Ford F150 Styleside Bed, 6'7" Bed
  • 2010-2014 Ford F150, 6'7" Bed
  • 2006-2008 Lincoln Mark LT w/o Bed Rails, 6'7" Bed

Videos

Watch This Video
UnderCover Flex l Hard Tri-Folding Bed Cover Overview
(01:50)

Review

Product Reviews Summary

Overall
5.0 
Appearance
5.0
Price / Value
4.8
Ease of Installation
4.8
Quality
5.0
5  Customer Reviews
5 Star
5   
4 Star
0   
3 Star
0   
2 Star
0   
1 Star
0   
Order by

Part #: UDC-FX21004 Posted on
Was this review helpful?
5.0
(Merrimack, NH)
Appearance
Price / Value
Ease of Installation
Quality
The most awesome birthday gift EVER! My husband was so impressed that I picked out a truck accessory that was PERFECT and that he loves! And the Real Truck operator did all the work for me. Sshhhh. ( I will take the credit)
Part #: UDC-FX21004 Posted on
Was this review helpful?
5.0
- 2014 Ford F150 (Florence, AL)
Appearance
Price / Value
Ease of Installation
Quality
loved it
Part #: UDC-FX21004 Posted on
Was this review helpful?
5.0
- 2014 Ford F150 (Kingsville, TX)
Appearance
Price / Value
Ease of Installation
Quality
Beat any price here in Arizona!
Part #: UDC-FX21004 Posted on
Was this review helpful?
4.8
(Glendale, AZ)
Appearance
Price / Value
Ease of Installation
Quality
I priced these out here in Phoenix and even with a Veterans discount REAL TRUCK beat them by over $200. Installation was pretty easy to do did it by myself. Only thing I have noticed is the back latch panel area due to the extensive HEAT here has melted the weather strip a tiny bit. Now it's nothing bad and with 115 degrees outside it's not the products fault. Overall I give this product 9 out of 10. I have friends and members where I work asking where I got it.

In addition I have added the Bedrug and tail gate carpets, these makes a great addition to the cover!

Thank you for all of the help so far REAL TRUCK!

C FLINT

PHX ARIZONA
Bed cover
Part #: UDC-FX21004 Posted on
Was this review helpful?
5.0
- 2014 Ford F150 (Colorado Springs, CO)
Appearance
Price / Value
Ease of Installation
Quality
have not had my cover long enough to know it is to hold up under use, the concept is excellent, construction is great, and looks are even better, very please at this point and time, will know better after vacation. thanks dean
Page
 Top

Warranty

3 Year Warranty

UnderCover Flex truck bed covers are backed by a 3 year warranty against defects in materials or workmanship


Installation

Installing the Flex model bed cover from UnderCover is easy and simple enough to do right at home. Your tonno has been designed to mount using common hand tools without any drilling or cutting needed. Some models may need to have some drilling done to properly install the drain tubes. We are always happy to answer any questions you might have about any UnderCover product. Feel free to call us at 1-877-216-5446 or 701-253-5906 for any additional information.

 

Watch This Video
UnderCover FLEX Installation on Toyota Tacoma | The Mountain Project
(02:41)