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2008 Kia Rio 5
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BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish
Part Number: BAK48426
In Stock
$1,243.05
2008 Kia Rio 5
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BAK Industries Tonneau Cover - BAK48426
Highlights
- Custom Fit for Your Vehicle: Secures to your truck bed with model-specific clamps and hardware
- Keeps Gear Protected: Hard aluminum panels lock with the tailgate to secure cargo.
- Full Bed Access: Tri-fold design flips up fully so you can haul oversized loads.
- Stays Dry in Rain: Rubber seals and drain system channel water out of the bed.
- Clean, Low-Profile Look: Matte black finish sits flush inside the bed rails.
- Built Tough: 1/2" thick rustproof aluminum panels support up to 400 lbs evenly.
Features to know about
Full Bed Use: Tri-Fold Aluminum Design
When you need to haul big things like lumber or camping gear, you don’t have to remove this cover. The BAKFlip MX4 folds up in sections, so you can open one panel for partial access or secure all three upright with prop rods for full use of the bed. It even stays clear of the rear window when flipped up, and the integrated buckle system keeps it stable while you drive.
Cargo Protection in Any Weather: Matte Black Seals and Drainage System
Keeping your gear dry matters whether it’s raining or you’re driving through a car wash. The MX4 uses matte black rubber seals and a built-in drainage system to channel water away from the bed. The rear seal is designed so you can open or close the tailgate with the cover in either position. It’s not just tight—it’s smartly sealed to handle weather year-round.
Lasting Strength: 1/2" Thick Aluminum Panels
This cover is built to take use and abuse. Each panel is made from rustproof, aircraft-grade aluminum that’s 1/2" thick and has a premium foam core for added strength. It’s rated to hold up to 400 lbs of evenly distributed weight. The matte black finish resists scratches, scuffs, and UV rays, keeping it looking clean even after years in the sun.
Smooth, Secure Operation: Automatic Latching System
You don’t need extra locks or complicated latches. The MX4 automatically locks when you close the panels, and when the tailgate is locked, the whole bed is sealed up. You can flip it open from the tailgate side and close it in seconds. It’s simple, secure, and ready for everyday use.
Rack and Accessory Friendly: Inside-Rail Mounting
For anyone running a ladder rack or other rail-mounted gear, the MX4 sits inside the bed rails so you keep your stake-pocket mounts free. It works with compatible systems like the Adarac Pro Series and BakBox2 (sold separately), giving you options for work or play without removing the cover.
Specs
Material and Construction
- Panel Material: 1/2" thick, rustproof aluminum
- Panel Core: Premium density foam
- Rail Material: Aircraft-grade, rustproof aluminum with black powder coat finish
- Finish: Matte black
- Seals: Matte black rubber seals
Weight and Capacity
- Weight Rating: Up to 400 lbs of evenly distributed weight
Fit and Compatibility
- Mounting Style: Inside bed rails
- Accessory Compatibility: Compatible with stake-pocket-mounted accessories and raised side rails
- Rack Compatibility: Compatible with BakBox2 (sold separately)
Operation
- Design: Tri-fold
- Access Options: Partial or full truck bed access
- Prop Rods: Secure folded cover in upright position
- Latch System: Automatically latching panels
- Tailgate Operation: Can open and close with cover open or closed
Finish and Protection
- Surface Resistance: Resistant to scratches, scuffs, and UV rays
- Drainage System: Built-in drainage system helps to keep water out of bed
Installation
- Installation Method: No-drill
- Mounting: Frame rails clamp to inside of truck bed side rails
- Front Hinge Rail: Secured to frame rails with included bolts
Warranty and Origin
- Warranty: 5-Year warranty
- Country of Manufacture: Made in the USA
448426 BAK Industries BAK Flip MX4 Hard Folding Truck Bed Cover
Replaces 48426
This Product Fits The Following Vehicles
- 2016 - 2023 Toyota Tacoma 5 Foot Bed
Ratings & Reviews
4.6
149 reviews
by:
Jason V
02/28/2023
The cover functions ok. The tailgate leaks quite a bit. The manufactured edges that where cut were sharp and not painted or treated. The weather strip along the edges has already discolored/faded. Disappointed in the fading and less than ideal sharp edges. Somewhat expected leaks, but not this much. Average at best rating, especially for the price.
by:
Daniel
01/28/2025
The representative at etrailer was very helpful finding the tonneau cover that met my needs. They are extremely knowledgeable. My cover arrived on-time, the installation was easy, and I am totally satisfied.
by:
Keith
11/08/2022
Great product!
by:
John B
07/12/2026
I love how this tonneau cover works. because it allows use of almost the entire bed of the truck when it's fully open. I was a little disappointed with the clamps for installing the side rails, as they didn't seem as robust as the clamps in the cover I bought for my last truck. However, I am happy with its operation, and the fact that the truck bed is a locked compartment when I lock the tailgate.
by:
Gordon
05/21/2025
2022
Ford
F-350 Super Duty
Bought it used.. I asked if it was complete undamaged.. It arrived complete including a scratch on the inside cover.. I'm glad it wasn't on the outside cover. Shipping was quick. Installation was fairly straight forward
by:
Doug
12/31/2025
Ordered the BAKFlip MX4 for my son on 12/15 after calling to verify the tonneau would arrive by Christmas. Then received an email that said "Your order has been forwarded to one of our partners for direct shipment to you" and never received another shipping update or any tracking info. Finally on 12/22 I emailed Etrailer.com who told me they didn't know when I would get it. The Tonneau finally arrived on 12/29, 3 days after my son returned to California (he drove his truck, 2100 miles). He won't be back till next Christmas so I have to figure out how to return this product. I had several other buying options to get this here by Christmas, but went with Etrailer because of their reputation. This will be my last purchase from Etrailer.com.
by:
David
04/10/2022
Overall, I am very pleased with my BAKFlip MX4. It has held up well after 1 year. It works well and looks good. It matches my matte black accessories and trim. It was fairly easy to assemble but I did have some tight fitment issues near the cab where the cover connects to the rail. I really like the security of the hardtop and access through the tailgate. Water is generally kept out, but sometimes there are water drips near the tailgate depending on the angle parked. So this cover keeps the bed *mostly* dry.
etrailer was very fast to deliver my cover, and it came in good condition.
etrailer was very fast to deliver my cover, and it came in good condition.
by:
Christopher
12/09/2025
The bed cover has been great so far. Followed the instructions and took my time adjusting it and it has been working well. Keeps the bed dry and looks good. I did have to order an extra kit to get enough rail clamps. Once I put the extra clamps on it feels much more secure. For 8ft beds they need atleast 8 to 10 clamps, not 6. The cover has been working in that I don’t have to uncover the whole bed to use it. I just need to open up as much as I need at the time.
by:
Chris B.
09/26/2020
So after a year I am still loving this bed cover. Had the fiberglass version for my 2013 F-150 and loved it as well, that's why I purchased this one for my 2019 Super Duty, it was also the first accessory I purchased for it because I was so used to my other one and knew I couldn't live without it. I never installed the drain tubes on either covers and still haven't had water get it my bed. Also the folks at etrailer are always awesome! Thanks again!
by:
Justin
04/23/2024
I have been using this cover for almost a year now, and am very pleased with it. It looks and fits great, and it is secure and keeps most of the bed dry in the rain. A couple of rubber trip bits have needed some improved securing, and I used a little RTV so it was easy. I drove it across the country round trip last summer and it was perfect. I would recommend this cover for a great-looking and pretty secure cover. Finally, it is easy to fold forward when it is time to haul loads taller than the bed rails.
by:
Pete
11/14/2025
Pontiac
Trans Sport Van
BAKFlip MX4 is a great addition to any pickup. It allows for secure transport of material, keeping it dry in bad weather and yet readily accessible with the flip of a panel. It also keeps the weather away from your 5th wheel hitch. Can be left on when towing.
by:
Rob
06/02/2024
Purchased this BAKFlip for my new 22 RAM Classic 1500. Installation went well, instructions were good to follow, and it fit perfectly. One of the plastic hold down clips had a manufacturer defect with excess plastic mold residue inside the clip that prevented it from properly working. I sent an online warranty claim explaining the problem, and a new clip was sent to me in a reasonable amount of time, and it worked fine. After one year of using the cover, I am very happy with it. Everything functions as it should, and it is very versatile. While it is not 100% watertight, I mostly notice a small amount of leakage around the tailgate seal after washing the truck. Under normal rainy weather, there is no leakage, and we get plenty of rain in the PNW. My four-star rating rather than a 5 star is only because of the manufacturer defect and the curling of one of the rubber cushions on the underside of one of the panels where the adhesive holding it on the edges has not held up under the hot weather (with the black color, when the sun beats down on the cover it gets pretty toasty inside the truck bed with the cover closed). I am thinking that should be an easy fix by applying some good adhesive and taping in place until the adhesive cures. Just haven't gotten around to doing it. Again, really like this cover. Would recommend it to others, and if I ever have a need for one in the future, would definitely not hesitate getting another BAKflip.
Rob
6/4/2025
The BAKFlip after 2 years is still functioning great. I fixed the curling cushion by applying some strong adhesive to the spots that had detached, taped it in place and let cure for a couple of days. That solved that issue. Would continue to recommend the BAKFlip to others.
by:
Michael
03/29/2026
Great tonneau cover. Fits as it should.
by:
Tianhe
03/26/2018
2017
Dodge
Ram Pickup
I installed the BAKFlip MX4 in my RAM 2500 Crewcab has the 6' 1/2 short bed, drived 300 miles now. good product, open and close the tailgate without lifting up the cover
by:
Gene
03/05/2026
dodge
Ram Pickup
Great fit on a Ram 2500 long bed. Everything stays dry on the inside.
by:
Mike M.
11/21/2020
I am a huge fan of the BAKFlip. The installation was pretty straight forward and easy. Anybody with moderate mechanical ability can install. I think it took less than 2 hours. I live in a heavy snow area and had more than 24” of snow on it at one point and the product performed flawlessly.
by:
Greg
05/23/2026
Excellent product! Wait time was crazy but manufacturer is to blame on that one!
by:
Dean
04/21/2021
the bedcover finally came in.
Few pictures of it installed.
Few pictures of it installed.
by:
Douglas
08/29/2025
I replace a camper shell with the tonneau cover because it is easier to remove when I want to put my pickup camper on the pickup. I am very happy with the cover and am glad I made the switch.
by:
James
07/22/2020
I really love the bakFlip cover. It locks up all my stuff when we are on the road. I really like the looks too.
by:
Robert
09/05/2025
I own three of these on three different trucks. The two I purchased this year and last year are not as good quality as the one I purchased in 2023.For the price they are feeling pretty cheap now and parts are falling off. Latch covers and rubber par to rest the top on when folded up have fallen off on both of the covers. I will not be buying these brand covers again.
by:
Mike
03/24/2022
Solid performance. Only issue is with the glue holding the pads is failing
Jenny N.
4/4/2022
You mentioned that the glue holding the pads are failing. I wanted to see if you would be able to send a picture to show the locations.
by:
Sherry H
05/16/2019
Love the MX4 ...Took a little longer to install but looks great...
Sherry H.
5/19/2020
Its still amazing. Works just like its suppose to glad I made the purchase.
by:
Jason
10/17/2022
I have owned this cover for over a year and it has been excellent. It keeps the bed fairly dry as expected and I have had no mechanical issues with it as it still performs like new. I would say the only improvement I would suggest is better foam weather striping for the front of the bed as the original never stuck to the spray in liner very well and eventually came lose and then I just swapped with some similar weather striping I bought locally.
Jason
12/11/2023
The cover is still excellent and keeps our items dry and secure on those road trips. I stand by my initial review and still wish the weatherstripping would stick the the spray in liner better but its only been a minor annoyance that hasnt resulted in any water getting into the bed.
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See what our Experts say about this BAK Industries Tonneau Cover
- Ladder Rack for 2021 Toyota Tacoma that Fits with BAK Flip MX4 Tonneau CoverI have a solution for your but since the Thule TracRack TracONE ladder racks like the # TH27000XT-501 attach by wrapping around the bed rails they cannot fit with a tonneau cover like the BAK Flip Mx4 part # BAK48426 if you have a 5 foot bed or # BAK48427 for if you have a 6 foot bed. So instead you'd want a ladder rack that attaches to the top of the bed rails like the Adarac Pro Series which also has vertical uprights that help with tonneau cover panel folding clearance. If you had...
view full answer... - Will The Thule TracRac Ladder Rack Work With A BAKFlip MX4 Tonneau Cover On A 2023 Toyota Tacoma The Thule TracRac SR sliding ladder rack, which mounts in the stake pockets of the bedrails, would be compatible with the BAKFlip MX4 Hard Tonneau Cover # BAK48426. Thule unfortunately does not have a confirmed fitting TracRac SR available for your 2023 Toyota Tacoma though. The other versions of the TracRac all mount in the same space as the rails for the cover so they wouldn't work together. You would need to use a ladder rack like the Adarac Pro Series Custom Truck Bed Ladder Rack...
view full answer... - Ladder Rack Recommendation to Fit With BAKFlip MX Tonneau Cover on a 2021 Toyota TacomaThe Thule TracRac Sr Sliding Truck Bed Ladder Rack will technically work with the BAKFlip MX4 tonneau cover on your 2021 Toyota Tacoma, but since the uprights are angled you'll have to adjust the uprights back and forth to open up the cover. Because of this I recommend using the Adarac Pro Series ladder rack instead because it can be adjusted back and forth along the rails and it has uprights that are straight up and down so you don't have to adjust them to open up your cover. Here are...
view full answer... - Best Tonneau Cover and Ladder Rack that are Compatible with Each Other on a 2022 Toyota TacomaI can help you out with that, it is always a good idea to ask for help when needing to verify that everything will be compatible with each other while also still fitting your truck. The cover I recommend for your 2022 Toyota Tacoma with 5' bed is going to be the BAKFlip MX4 Hard Tonneau Cover # BAK48426. This is going to mount inside the rails on your truck bed allowing you to use the Adarac Pro Series Custom Truck Bed Ladder Rack # A76ZR which will be installed using stake pocket inserts....
view full answer... - Recommended Removable Ladder Rack Compatible With A BAKFlip MX4 Tonneau CoverWhile we no longer carry the Rapid Switch System ladder rack you're referring to, we do still have a compatible option with the Adarac Pro Series Custom Truck Bed Ladder Rack # A76ZR. This ladder rack mounts in the stake pockets and sits on the bedrails to allow for compatibility with tonneau covers that sit inside of the bedrails, like your BAKFlip MX4 # BAK48426. The towers can be easily loosened in the track and slid back and forth along the bedrails to fit your hauling needs and then...
view full answer... - Truck Bed Rails And Crossbar For A 2016 Toyota Tacoma Double Cab Short BedYes, the TS Rails for TruXedo Elevate Rack System # TH75FR will work great with your BAKFlip MX4 Hard Tonneau Cover # BAK48426 on your 2016 Toyota Tacoma Double Cab Short Bed. To be able to mount cargo, skis, or a bike rack to # TH75FR, I recommend using the Rhino-Rack Vortex Crossbar System for Retrax XR Series and Mountain Top EVO-M Tonneau Covers # RRVA165B-RRRLT600. These bars are 65" long and can support up to 220-lbs.
view full answer... - Is the Rapid Switch Systems Pro Sport Ladder Rack Compatible with BAKFlip MX4 TonneauYes. The Rapid Switch Systems Pro Sport Ladder Rack # RS49FR will be compatible with a BAKFlip MX4 tonneau cover # BAK48426 (5ft bed) or # BAK48427 (6ft bed) for your 2021 Toyota Tacoma.
view full answer... - Is The Thule TracRac SR Compatible With A BAKFlip MX4 Tonneau Cover On A 2018 Toyota TacomaYes, the BAKFlip MX4 Hard Tonneau Cover # BAK48427 (6' bed) and # BAK48426 (5' bed) are both compatible with the Thule TracRac SR sliding ladder racks, but Thule unfortunately does not currently have a compatible fit for your 2018 Toyota Tacoma. Adarac however does have a fit that will work along with the MX4 cover that's able to slide with their Pro Series line. For a 5' bed you'll need part # A76ZR and for a 6' bed you'll need part # A26ZR.
view full answer...
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Info for this part was:
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Video by:
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Expert Research:
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Installed by:
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Updated by:
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Updated by:
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Claire H.
7/14/2026
Thanks for the great feedback! We're glad you're enjoying the tonneau cover and that being able to use almost the entire truck bed when it's open has been such a big plus. It's also nice knowing your gear stays secure when you lock the tailgate. We appreciate you mentioning the clamps too—that kind of feedback is always helpful. Thanks again, and we hope you keep enjoying your new cover!