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BAK

BAKFlip MX4 TS Hard Folding Tonneau Cover w/ T-Slot Rails For 2017-2027 Ford F-250/350 8' Bed - 449331TS

SKU 449331TS
Original price $1,699.99 - Original price $1,699.99
Original price $1,699.99
$1,699.99 + Free Shipping
$1,699.99 - $1,699.99
Current price $1,699.99 + Free Shipping
Free ShippingOn this item
Only 5 LeftIn stock now

Free gifts included with your order

$69.99 value
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Free Shipping To All US States (Excluding Puerto Rico, Hawaii, Alaska)

Shipping Times:
We strive to deliver your order as quickly as possible. Estimated shipping times are based on information provided by suppliers and freight companies and are subject to change without notice due to factors such as supply chain disruptions, delays in raw material production, and increased shipping demands. We appreciate your patience and understanding during these times. 

Most orders will ship out within 0-2 Business Days. Once the order ships, it will take between 1-5 Business Days to get delivered.

Please note that shipping times may vary based on the brand and whether the item is made to order. Refer to the brand-specific shipping estimates below for more accurate timelines:

Brand Specific Shipping Times

  • WildTop Products: Ships within 3–5 business days; transit time is 7–16 business days. (Estimated Delivery: 10-21 business days)

  • Fas-Top Products: Ships within 5-10 business days; transit time is 1–7 business days.(Estimated Delivery: 6–17 business days)
  • Chandler Truck Accessories Products: Ships within 3–5 business days; transit time is 2–7 business days.(Estimated Delivery: 5-12 business days)

  • OPENROAD Truck Caps: Ships within 3-5 business days; transit time is 1–7 business days. (Estimated Delivery: 4-12 business days)

  • Bodyguard Bumpers: Ships within 50-60 business days; transit time is 1-7 business days. (Estimated Delivery: 51–67 business days)

Cancellations & Refunds: At Truck Bed Supplies we pride ourselves on having the best return policies in the industry. Cancel your order any time before it ships completely free of charge (exceptions apply such as custom/special orders, see below). 

If you have questions, please send an email to sales@truckbedsupplies.com

Cancellations (Before Order Ships)

If you need to cancel an order, please contact us as soon as possible so we can refund you in full before your order leaves the warehouse. Reach agents during business hours at (845) 579-3631, the chat in the bottom right, or email sales@truckbedsupplies.com any time. 

Cancellations After The Order Has Shipped

Once an order has shipped, it can no longer be canceled. If you no longer want the item, you will need to wait until it is delivered and then initiate a return. A Return Merchandise Authorization (RMA) number is required to properly return the item.

Cancellations of Custom Orders

Custom or made-to-order products cannot be canceled or refunded as these products are put into production specifically for your order.

These units are custom-made to your specifications or created once you order. Once you place your order they start building your unit. Your warranty will guarantee you a fully functional and operational product. If it is not clear whether your order is custom or made to order, please message or call us. 

All sales are final for custom-made and Made-to-order products.

Refunds and Returns.

If you need to exchange your product, you may do so, as long as the product has not been used or opened. You, as the customer, are responsible for any shipping costs throughout any returns and exchange processes. 

Not all orders are available for return once they have shipped. We order our products directly from the manufacturer. Therefore, if the manufacturer will not permit us to return a product, we cannot offer you a return. This often varies on a case-by-case basis; please reach out to us if you would like specific information on your brand and/or product. 

Due to drastically increasing LTL/freight shipping costs, any outright returns will incur a 20% restocking fee + return shipping costs. If you are replacing the product with something else, we may be able to help you cover some of the costs depending on the product. 

Customers have 30 days from the date they received the item to initiate a return.

Please Read the Following

When you are making a purchase from Truck Bed Supplies, you are acknowledging the following of the Exchange Agreement:

  • I understand I am to inspect the package upon delivery, and notate and take pictures if there is any damage and provide it to Truck Bed Supplies within 24 hours of the product being delivered.

  • I understand that I am responsible for the cost of return shipping and the cost of a new product shipping in the case of a refund or exchange. 

  • I understand that products need to be returned unopened and unused.  An additional restocking fee may occur.

  • I understand that if my order has left the warehouse, that I am unable to receive a full refund. 

  • I understand that if I return my order once it has shipped, I will be responsible for paying any return shipping fees and restocking fees, which vary by product but are usually around 20%. 

  • I understand that shipping date estimates outlined on product pages are estimates and may change due to factors completely outside the control of Truck Bed Supplies.

  • I understand and agree that I will not cancel my order or file a chargeback for an order delay or because an estimate time provided to me turned out to be incorrect due to factors outside the control of Truck Bed Supplies (such as manufacturing and logistical constraints of our partner companies).

Damages

If a package appears to have been damaged during shipping, most likely the item is still okay. Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should take any pictures and make note of it when signing for delivery.  If your item(s) do arrived damaged please send photos of damage, box and SKU, along with a brief description of the damage tosales@truckbedsupplies.com and we will process an insurance claim on your behalf. Photos and videos must be sent for freight damage within 48 hours of arrival or the freight damage claim will not be valid. Any punctures, or visible signs of exterior damage must be reported within 48 hours. 

Warranty

Warranties vary depending upon the manufacturer - see individual product pages for details. Warranty damages occur over time and from use. If an item was damaged upon arrival, and not reported within 30 days, that is not a warranty claim.

Returns

If you choose to return an item for any reason other than shipping damage or product defects within 30 days of receiving it, please contact us first to obtain a Return Merchandise Authorization (RMA) number and the correct return address. Please note that return addresses may differ from the original shipping address, so it's important to reach out before sending your item back. You, the customer, are responsible for all return shipping costs, including any insurance. Once we receive the item and confirm that it is unused and undamaged, we will issue a full refund, minus a 20% restocking fee.

Nearly all of our products have guarantee warranty policies - meaning that you will 100% get a fully functional, operating product that you paid for without any extra expenses incurred on your end - please see individual product pages for details. 

Contact Information

If you have any questions or concerns regarding our shipping and return policy, please contact us below:

Business Name: Truck Bed Supplies
Email: sales@truckbedsupplies.com
Phone Number: ‪(845) 579-3631
Customer Service Hours: Mon-Fri 8am-6pm EST

BAKFlip MX4 TS Hard Folding Tonneau Cover w/ T-Slot Rails For 2017-2027 Ford F-250/350 8' Bed - 449331TS Reviews

  • 5 stars: 12 (80%)
  • 4 stars: 2 (13%)
  • 3 stars: 1 (7%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
B
Bob
Great cover

Great cover. Easy install. Works well with Elevate ladder rack. Many options for loading. Very pleased!

D
David Scheels
The BakFlip MX4 TS was slightly difficult for me

The BakFlip MX4 TS was slightly difficult for me, a novice, to install. It took about 2 hours to successfully install it myself. I had initial trouble with the last fold (next to the tailgate locking but after contacting back flip on line it was quickly resolved with the there guidance. I added a ladder rack with it and it works great,

Z
Zach
Best customer service ever

The product is great, which I figured it would be. But the thing I was most impressed with was the customer service I received. Questions were answered via text and email promptly. Also, a little plastic piece was broken during shipping and they helped me file the warranty claim, kept me updated along the way, and reached out to ensure everything arrived and worked properly. Outstanding, especially during a time of automated/ai support, this was much appreciated.

A
ANDREW ARMSTRONG
2026 Nissan Frontier install

Just installed on my son’s 2026 Nissan Frontier. Fairly straightforward install but took some finagling to get it to sit right. Looks great and seals up pretty well. Shipping and delivery were quick and painless.

A
Anonymous
Great fit and quality.

Very quick and well informed delivery. Great quality with perfect fit and easy installation except.

J
Jakob K
Excellent Cover for 4th Gen Tacoma

Excellent cover and the T-slot rails are a great addition! Fits perfectly on a 4th gen Tacoma. Delivery was very quick, everything was packaged, and the install video found online was straightforward.

K
Kalina
BAKFlip MX4 TS Hard Folding Tonneau Cover w/ T-Slot Rails For 2015-2020 Ford F-150 5'7" Bed

This product is so well made and fits the truck perfectly! It’s durable and came in the mail quickly and undamaged. This was a gift for my husband and he loves it!

K
KT
Great Hard Cover and Love it!

So, I picked up this BAKFlip MX4 TS tonneau cover for my truck a couple weeks ago since it has those T-slot rails for adding racks later.
The box showed up in good shape – everything was packed tight, no damage, and they threw in all the bits I needed plus a few extra hardware, which was nice in case I dropped one. Instructions were pretty straightforward; I just followed them step by step without any head-scratching moments. I’m not a pro mechanic or anything, but I got it installed solo in about an hour. Clamped right on, no drilling needed, and the cover lined up fine.
The cover feels solid – aluminum panels with a tough finish that doesn’t look cheap. It’s easy to fold up when I need full bed access, and it seals up very decent against the weather so far under a downpour rain 2 days. Comparing to OEM version, it seems to be better, especially the coating on the tonneau for durability.
All in all, I’m happy with it. If you’re looking for something sturdy that doesn’t take forever to put on, this one’s a good pick. I’d buy it again.

L
Louie Hoerner
Waterproof, Easy Install

So far, this cover is completely waterproof. It is easy to install for anyone who is mildly DIY capable. I chase BakFlip after getting years of service off of my last one.

W
William Lanigan
We just installed our MX4 TS

We just installed our MX4 TS. It fit's perfectly. The instructions we precise and easy to follow.

Installed, it looks sharp and works smoothly.

J
Jason

Great fit and easy install.

B
Brian Judd
When installed correctly

When installed correctly, it will still be short of covering the gap between the tailgate and the inside of the box. Water still gets in the gap created by the design of the tailgate and the box on the Colorado. I have adjusted the cover towards the rear as much as possible without creating a gap in the front, and still don't have enough cover to cover this gap between the tailgate and the bed. I have even installed Silicone Weather Stripping Door Seal at 3/4" in the front to try to get more coverage near the tailgate and still cant get enough to cover the tailgate gap between the tailgate and the box. Images are not of mine but are of someone elses with the same issue.

A
Anonymous
Easy install

Easy install, sits nice and flush, and secure. I really like this cover.

J
Justin
Good cover but difficult install

Good cover but difficult install. Getting the clamps to tighten in the correct slot was not easy. I wish it followed the taper of the bedsides. 6.5 bed also doesn't have latches for every segment.

A
Anonymous
Folding Truck Bed Cover

Product is very well made and was perfect for my truck. It was shipped quickly and came undamaged. Very happy with my purchase!

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