Search  for anything...
UNDERCOVER

UnderCover Flex Hard Folding Truck Bed Tonneau Cover | FX51016 | Fits 2016 - 2022 Nissan Titan w/ track system 6' 7" Bed (78.7")

    • Based on 151 reviews
Condition: New
Checking for product changes
$1,099.99 Why this price?

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day easy returns

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by Midwest Aftermarket
Arrives Feb 6 – Feb 8
Order within 19 hours and 5 minutes
Available payment plans shown during checkout

Color: High Gloss Black


Size: 6' 7" Bed


Features

  • Fits 2016 - 2024 Nissan Titan w/ track system 6' 7" Bed (78.7")
  • 100% BED ACCESS | The Flex allows you to drive with the cover in three secure positions: closed, partially closed, & fully open. The cover folds into an upright position with dual prop rods, without resting on the back of the cab.
  • STYLISH LOW PROFILE DESIGN | The Flex hard folding cover has a gloss black finish and lies flush with the truck bed to enhance the appearance of your truck. It also features full perimeter seals to help prevent water intrusion.
  • EASY OPERATION | This cover has durable, aluminum automatic-latching panels that release with pull cables on either side of the truck. The dual-action tailgate seal allows you to shut the tailgate without lifting the cover first.
  • PURCHASE WITH CONFIDENCE | The UnderCover Flex hard folding tonneau is lightweight & easy to install. It comes with a 3-year, hassle-free guarantee, is made in the USA with globally sourced materials, & is backed by a US-based customer support team.

Description

The UnderCover Flex hard folding truck bed cover comes in a gloss black finish and lies flush with the truck bed. The Flex hard folding cover allows you to drive with the cover partially or fully open, providing 100% bed access when you need to transport large items that stick out of the bed. When fully open, the Flex is secured in an upright position with dual prop rods that lock into place and stow away easily when not in use. The Flex provides the ultimate security, with durable aluminum panels and an automatic latching system that locks the cover into the bed’s side rails. The latches are easily released with multiple pull handles underneath the cover, on either side of the bed, so you can effortlessly open the cover from either side of the truck. The Flex is also extremely functional, with a dual-action tailgate seal that enables you to close the tailgate without having to lift the cover first. The Flex is proudly made in the USA with a US-based customer support team and it comes backed by a 3-year, hassle-free guarantee. The Flex provides the ultimate security, with durable aluminum panels and an automatic latching system that locks the cover into the bed’s side rails. The latches are easily released with multiple pull handles underneath the cover, on either side of the bed, so you can effortless open the cover no matter what side of the truck you happen to be on. The Flex is also extremely functional, with a dual-action tailgate seal that enables you to close the tailgate without having to lift the cover first. The Flex is proudly made in the USA with a US-based customer support team and it comes backed by a 3-year, hassle-free warranty.

Brand: UNDERCOVER


Style: 2016 - 2022


Exterior Finish: Black


Material: Aluminum


Lock Type: Tailgate


Manufacturer: ‎Undercover


Brand: ‎UNDERCOVER


Model: ‎Flex


Item Weight: ‎70 pounds


Product Dimensions: ‎32 x 82 x 8 inches


Item model number: ‎FX51016


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Black


Manufacturer Part Number: ‎FX51016


Date First Available: February 11, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 6 – Feb 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Flexing my Tonneau Cover
Color: High Gloss Black Size: 5' 7" Bed
I own a 2021 Nissan Titan with the special tie down railing. I have owned a few trucks and a few different branded Tonneau Covers. I have experience installing all of them as well. I had very limited choices owning a Nissan Titan. Coming from RAM, Ford, Chevrolet.... you have a bunch of options of Tonneau Covers and a wide variety of prices as well. I found out that most options that exists for a Nissan Titan do inherently cost more... This was a bit of a shock to me at first, but I eventually settles on the UnderCover Flex. Installation was a breeze and the instructions were decent. One of the main reasons installation was easier than the others I have installed is because of the railing and claps provided by this bedcover for my type of setup. For those that have not installed a bedcover, they typically have 6 clamps, 3 each side to hold down the railing that holds down the bedcover itself. Normally it is difficult to hold the clamp to the bed while also tightening it. The Nissan Titan with the special railing and these engineered clamps, you just slide them in and tighten. No having to stick your hand under the side of the bed and hold it down while you tighten. The BedCover itself is somewhat heavy, depending on you age and size you will safely need two people to lift it and place it on the truck. The plastics are made well and durable the center pieces in the tri-fold are a nice textured glossy black finish. I am very happy with the build quality. I have owned this bedcover about a year now and I do take it through the occasional car wash, I do wax the textured inserts and apply conditioner to the plastic trim/rubber. It has held together with zero signs of wear. It does a great job of keeping the rain out, car wash.... not so much, but that is to be expected with high pressure sprayers pointed directly at it. The symbol it came with did fall off at some point, but again I imagine that was the car wash. I highly recommend this to Nissan Titan owners and I believe the other versions of the brand are great as well! ... show more
Reviewed in the United States on February 23, 2023 by Poolboy16
    • Great Bed Cover With Durable Coating
Color: Matte Black Size: 6' 7" Bed
The installation was really easy once I read the instructions and realized that the clamps they sent were put together in a way to minimize shipping space and not to be ready to install... It fits snuggly and I have high confidence that it will provide the dry, secure storage that I am looking for in the bed of my truck. It definitely makes the bed of my truck look better since I have the utilitrack system, even though the will keep me from using the side rails without removing the bed cover. As little as I expect to need to use the tie downs it should not be an issue. The quality of construction is evident as this comes in at a hefty 80ish pounds with clean lines. It took a couple of days for the rubber weatherguard to settle in but it now creates a solid seal around the entirety of the bed of the truck and kept everything dry during a dousing. I highly recommend this if you are looking for a high quality bed cover that is covered by a 5 year warranty. ... show more
Reviewed in the United States on November 5, 2020 by Kylie
    • Super easy/fast to install by myself, works as advertised, perfect fit for 2022 Nissan Titan Pro4X
Color: Premium Line-X Coating Size: 5' 7" Bed w/ Track System
Super easy/fast to install by myself, works as advertised, perfect fit for 2022 Nissan Titan Pro4X. I was not in any hurry at all and it didn't take me over 45 min to install. Had it now for about a month and several rains and carwashes later with no issues. For my specific truck, the drain tubes really have nowhere to go as the holes in the bed are too small for them, but there has not been any notable water in so far bed at all even after heavy rains and traveling in rain. ... show more
Reviewed in the United States on December 14, 2022 by Keith
    • Easy installation and great security for truck bed.
Color: Matte Black Size: 5' 7" Bed w/ Track System
Looks great, easy installation and gives security to truck bed. Weather proof and insulated which makes a big difference In Florida sun.
Reviewed in the United States on August 6, 2023 by Robert Aylsworth
    • Best cover on the market
Color: High Gloss Black Size: 5' 7" Bed
This cover I have been buying since I've owned a truck 20 years through 4 different trucks. I bought this one in full confidence that it will be the cover I always buy and it was. Extremely strong, extremely lightweight, extremely easy to use, easy install minimal tools required. this cover hits all the stars and is top quality ... show more
Reviewed in the United States on May 20, 2023 by scott blum
    • Great look
Color: Matte Black Size: 6' 7" Bed w/o Track System
Like the way it looks when completed but it is not fit per vehicle rails clamp on and are hard to get to stay on besides that it’s great
Reviewed in the United States on June 23, 2023 by mark potter sr
    • Great cover, but came with the wrong clamps.
Color: Matte Black Size: 5' 7" Bed w/ Track System
Review Image by L.Martin L.Martin
Review Image by L.Martin L.Martin
Review Image by L.Martin L.Martin
“Update” My original review I rated this cover at 1 star. All the pictures showed this to have the clamps for a truck without a tie down rail system. The clamps it came with were for the rail system and I had to order the correct clamps from Summit Racing after hours of searching. I have had this cover on my truck almost a month and I have adjusted my rating to 4 stars. It would have been 5 if they had sent the correct clamps. Tried contacting seller but never heard anything back from them. This cover is great! I have had no issues with it since I put it on. I have even taken it in an automated car was and there was some water that made it into the bed, but hardly any. Easy to install and comes with a side storage bag. I would recommend this product IF you are able to contact the seller and confirm which style clamps you will be receiving. ... show more
Reviewed in the United States on December 16, 2017 by L.Martin L.Martin
    • Looks good. Works well.
Color: High Gloss Black Size: 5' 7" Bed
Went into this not knowing anything about covers. Chose Undercover because I needed a cover quick and it has good reviews. Received this afternoon and had it installed in about an hour. Once I figured out how the rails were installed it was a breeze. Instructions could be clearer in my opinion. Looks good, works well. Wasn’t sure black gloss would look good but it goes well with my black Titan. Very easy to open and feels secure with tailgate closed. If someone really wants in, they will get into any cover. Per Undercover, it will support 400 lbs evenly distributed, which can come in handy. Time will tell if it is durable and reliable but happy with initial experience. ... show more
Reviewed in the United States on February 26, 2024 by N Davis

Can't find a product?

Find it on Amazon first, then paste the link below.