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  1. Tonneau Covers
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  3. Roll-Up - Hard
  4. Flush Profile - Inside Bed Rails
  5. Rack Compatible
  6. Aluminum and Vinyl
BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black

BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black

Item # BAK49ZR
Our Price: $1,249.99
You Save: $335.25
Tonneau Covers

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Shipping Weight: 90 lbs
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Weather-resistant, roll-up cover keeps the gear in your truck bed secure and dry. Rolls up quickly by hand for full access to your truck bed. Aluminum slats keep cover tight and help prevent break in. Requires no drilling to install. Great Prices for the best tonneau covers from BAK Industries. BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black part number BAK49ZR can be ordered online at or call 1-800-940-8924 for expert service.
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BAK Industries Tonneau Covers - BAK49ZR

  • Roll-Up - Hard
  • Flush Profile - Inside Bed Rails
  • BAK Industries
  • Rack Compatible
  • Aluminum and Vinyl
  • Matte
  • Opens at Tailgate

Weather-resistant, roll-up cover keeps the gear in your truck bed secure and dry. Rolls up quickly by hand for full access to your truck bed. Aluminum slats keep cover tight and help prevent break in. Requires no drilling to install.


  • Roll-up, soft tonneau cover keeps the gear in your truck bed secure and dry
  • Cover rolls up for full truck bed access - secures with hook-and-loop straps and buckles
  • Pinch levers let you easily open cover from either side of truck bed
    • Cover latches shut whether tailgate is open or closed
    • Tailgate lock keeps your gear secure
  • Low-profile cover with textured, matte black finish sits 1-1/2" above the bed rails
  • Double-coated, reinforced vinyl with aluminum bows is sturdy and resists tears
    • Self-tensioning frame keeps the cover taught
  • Weather seals keep out water without need for drain tubes
    • Beveled edges direct water off the sides of cover
  • Easy, clamp-on installation inside truck bed rails - no tools or drilling required
  • Limited lifetime warranty


  • Weight capacity: 400 lbs evenly distributed
  • Limited 5-year warranty

Get the advantages of both a hard tonneau cover and a soft tonneau cover for your vehicle with the Revolver X4s. This hybrid tonneau likely has an identity crisis. It's built like a hard cover, but it looks and acts like a soft cover. With the Revolver X4s, you get the strength, durability, and security of a hard tonneau and the sleek look and convenience of a soft, roll-up tonneau - all while protecting your truck bed and cargo and helping to improve your fuel mileage.

The X4s has the features of the original Revolver X4 with upgrades including a matte black aluminum underbody, integrated safety slat caps, rear corner caps, and an integrated bulkhead seal.

Strong, Convenient Hybrid Design

Fully installed coverPartially rolled up cover

The secret to the Revolver X4s's versatility is the aluminum slats on the underside of the cover that make it strong, seamless, and flexible. These individual, hinged slats give the cover its rugged body, while also allowing enough flexibility for the cover to be rolled up. Atop the slats is a tough, 1-piece vinyl layer that adds to the tonneau's sleek look and overall durability while also keeping the slats perfectly aligned. As a result, the Revolver X4s will roll up evenly every time, unlike ordinary soft vinyl covers that can get lopsided as you maneuver them.

Low-Profile Appearance

Cover sits flush for a low-profile appearance

Unlike other tonneau covers that sit 1/2" or more above your truck bed rails, the Revolver X4s sits nearly flush with your rails for a clean, ultra-sleek look.

Full Truck Bed Access

Cover rolled up for full truck bed access

The Revolver X4s gives you full use of your truck bed in a matter of seconds - just roll up the cover and secure it behind the cab. As a result, you can tote around all your gear without having to remove the tonneau. And because the Revolver X4s mounts inside your truck bed rails, you can still use your truck bed stake pockets to mount accessories like tie-down anchors.

Simple, One-Person Operation

Cover is closed and secure

The Revolver X4s is simple to operate. Following installation, just roll the cover out and press down on the rearmost slat at the tailgate to secure the tonneau in place. The built-in latches not only lock down the back end of the tonneau, but they also fasten the sides of the Revolver X4s along the length of the frame rails. The rail tooth runs the entire length of each frame rail. It rotates downward to lock the side rail into the sides of the cover.

Cover is latched closed

When the cover is rolled out and the rear slat is pressed down at the tailgate, the latches on both sides engage. When this happens, the integrated teeth pivot down and rest on top of each slat of the rolled-out cover. Closing the rear slat effectively pins the cover to the rails, ensuring that the cover stays closed from front to back. It's that simple - no Velcro to seal or snaps to wrestle with. When your tailgate is closed and locked, no one will be able to get through the cover, thereby safeguarding your truck bed and its contents. The cover automatically secures as the locking levers at the tailgate engage. These sturdy levers have reinforced gussets that give them added strength and durability. And they will never need adjustment.

Cover unlatched and partially unrolled

To roll up the cover, unlatch the rear slat by dropping the tailgate and pulling either of the 2 release cords located along the bottom corners of the slat's housing. Either cord will release both of the latches so that you can raise the rear slat. When the latches are disengaged, the teeth roll back into the frame rails, releasing the sides of the cover so that you can easily roll it up. Just fold the rear slat over and roll up the cover the rest of the way.

Rolled up cover secured to end of cab by buckle straps - from aboveRolled up cover secured to end of cab by buckle straps - from below

Then secure the tonneau behind the cab with built-in nylon straps and sturdy plastic buckles. These straps help to keep the bundled tonneau from contacting your cab while you drive. And 4 rubber bumpers act as cushioned barriers between the cover and your truck cab.

Heavy-Duty Construction

Heavy-duty, aluminum construction under matte black vinyl

The Revolver X4s's rugged aluminum and vinyl construction makes it an ideal match for your truck, no matter what you do while at work or play. This cover is strong enough to hold up to 400 lbs of evenly distributed weight when it's rolled out. The 1/4" thick, aircraft-grade aluminum slats are covered with a matte black vinyl skin for superior resistance to impacts, UV rays, and weather. This skin is what gives the tonneau its soft, sleek look. While the Revolver X4s may look like a soft cover, its aluminum skeleton provides exceptional security because it cannot be cut through in the same way that a standard soft vinyl cover can be.

Cover lays atop protective felt strips

Felt strips on the underside of the tonneau help to keep the slats from scuffing the vinyl top as you roll up the cover. The soft felt also shields your hands when the cover has gotten hot or cold. And rubber strips overlay your truck's side rails, cab rail, and tailgate, creating a seal that helps to conceal any gaps and works to prevent water from seeping in.

Easy, No-Drill Installation

Clamp-on installation

Installing the Revolver X4s is simple. All you need is a wrench, and you don't have to do any drilling. The tonneau's frame rails clamp to the inside of your truck bed side rails to create a base for the cover. The included bolts secure the front hinge rail to the frame rails at the cab.

Slotted brackets at the ends of the tonneau side rails allow the bolts to shift in case you need to adjust the cover to achieve a snug fit. These brackets ensure proper alignment of the tonneau frame on your truck bed side rails. This eliminates trial and error in installing your rails - you won't have to put them on and then take them off again to get the correct fit. Pre-installed shims and spacers also help to ensure that the Revolver X4s rails are installed squarely on your truck bed.

80331 BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black

Replaces BAK79331

Installation Details BAK49ZR Installation instructions

This Product Fits The Following Vehicles

California residents: click here

Customer Satisfaction Score:

Customer Reviews

BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black - BAK49ZR

Average Customer Rating:  4.4 out of 5 stars   (67 Customer Reviews)

Weather-resistant, roll-up cover keeps the gear in your truck bed secure and dry. Rolls up quickly by hand for full access to your truck bed. Aluminum slats keep cover tight and help prevent break in. Requires no drilling to install.

2021 Ford F-350 Super Duty

The tonneau cover fits as advertised no leaks it has been a great addition to my truck I really like the way I have my whole bed to use and still have the security of a hard cover without blocking my view out of the rearview mirror for hoking up my fifth wheel trailer.



The Tonneau Cover has been working Great no leaks. I really think this product works as advertised. I would and have recommended this product to other people.


would have given it a 5 star rating ... BUT ...on a VERY windy day in Kansas ... somehow the cover bowed enough to slip out of the latch rail ...very strong side-wind & it was seen floating up & down in my rear view mirror ...I quickly pulled over to secure it! The small rear corner plastic seal was lost and the other later became so warped in the summer heat it was unusable - after an extended period of being in rolled /stowed position! So now I get a wet rear bed liner when I drive through rain & the carwash ... but as my one initial experience with the customer service was not great I have not followed up on trying to get replacement parts! I use black gorilla tape to seal the rear corners! Othe than that -I really like the security for my truck bed contents, the ease of use ease of install and I just double check the latch (& rail alignment) by thumping it upwards each side before closing tailgate more issues with side-winds!

Etrailer Expert

Katrina B.


Holy wind strength! Luckily this has a 5 year warranty. I will send you more detailed information about contacting BAK in an email.


It’s awesome. However one section toward tear of bed separates sometimes. It takes a minute and a second set of hands to reassemble. Has anyone else had this issue?

Etrailer Expert

Jenny N.


I would not say that this is normal and I will reach out to the manufacturer.



The original cover was improperly sized from the factory (direct shipment from BAK due to backorder). etrailer, as usual, went above and beyond to get me the correct fitting cover. The new cover fits perfectly and looks great on my truck. Hopefully it will last, though I worry about the quality considering BAK did not notice they sent me a cover with the wrong dimensions originally. Giving 4 stars due to poor QA from the factory on the original shipment.


This is my second BAK cover. I had the flip before this one. I definitely prefer this roll up style as it is much easier to open/close and not nearly as heavy. It would be 5 stars except for the fact that I have to constantly re-adjust and pull the cover back towards the tail gate. It seems to slide forward a micro amount with each opening. So after a few weeks of opening and closing there is a small gap between the tailgate and cover so I have to move it back to seal the gap. Otherwise love this cover.


I’ve had this for a year now. The good: Very nice product, I recommend it. The rollaway ease is great - quick, easy, compact and reliable during near every day use. Effective watertight (not water proof) seal. Definitely recommend the rugged vinyl of the X4 over the X2.

The not so good: the ribs can get kinked and are hard to work back into position when they do. This was really only an issue during initial install, so just be cautious to avoid letting it bend the wrong way. The plastic end caps on the lock rail can pop off, so I recommend using adhesive to hold them firmly in place.

Overall it’s great. Definitely recommend.


Mostly a great cover. I've had this cover on my 2021 Ram 8' bed for 1 year. Install took about 45 minutes. There are 2 issues. After snow or rain and temperatures drop below freezing the cover's locking system along the rails freezes making it very difficult to open or close. You have to go the rails and pull the mechanism free. This year I will try WD 40 prior to the winter season to displace moisture.

2nd, issue two of the hinged supports in the cover separated after being rolled up during a several day trip. One about 3 months ago the second 2 weeks ago.The first one was mostly cosmetic. The second separation would not allow the cover to close without forcing it. I contacted BAK and they quickly opened a warranty claim. After sending them photos and a description of the problem they sent a replacement cover. The 5 year warranty is a pluse. Hopefully this is a one off issue. If I have the issue again I will ask for a different cover.


This is by far the best tonneau out there and BAK is one of the best companies I have ever dealt with. My cover arrived with a broken plastic corner at the tailgate end, I called BAK and without any questions, they sent me the part I needed and also extra ones for both sides. I couldn't be happier.


I am very happy with the purchase 1 year later. I have a 21 Honda Ridgeline and found the instalation easy. You need to install the included sidewalls to accommodate the ridgeline bed shape and they do create an extra seam, but its not an issue. I can still access the trunk. Works well.


Looks great. Seems to be good quality. If installing on a Ranger pickup, find ALL of the instructions, including the one in the hardware package that tells you what to do before step 2 of the main instruction sheet.


Literally the best cover there is on the market. It’s sleet. It’s durable and I get compliments everywhere I go. Thank you etrailer.


Some of the hardware didn't quite fit, needed to change bolts. Otherwise, excellent. Have now been using it 7 months... love it.


Honest 1-year review. I like the cover but have issues with it. First, let me state the cover is very nice and does a great job as a cover. But if you have motorcycles like I do the cover presents a challenge when trying to haul them in the back of my truck. There is no easy way to take it off and it's a real pain in the butt. I've found one of my bikes has a fender and doesn't fit under the cover and will rub it if I try. The only solution is to remove the cover and it's proven to be a pain in the butt. So more often than not I do not use the truck with this cover on it to haul my motorcycles. I also don't like how the rubber edge strips just project a few extra inches past the front of the cover. Another thing is the cover is unusable if there is ice on it. You can't roll it up unless you melt all the ice so if you needed it in a pinch and store your truck outside like me you'll find removing the cover with ice on it to be a nightmare. But other than that the cover has been very good. I'd give it a 4 star rating for everyday use but when it comes to hauling motorcycles or winter use I'd give it a 3 for not having a quick-release feature and making it difficult to remove.


Fit is a little tight at the latch end even after removing shims, but overall very nice and sturdy. There was some minor damage to the product when it arrived, but nothing that impacted its function or outward appearance. Much nicer than the Revolver (old name) that I had on my last truck.


This item was forwarded to BAK for fulfillment / shipping - Looks like I am going to wait a month or so for delivery - Probably not etrailer's fault but certainly frustrating -


Great cover overall. Let's just a tiny bit of water through, super strong and tough.

My only complaint - at the very end near the tailgate, occasionally the joint between a couple of the slats pops out. You can still use it like this, but it looks like there's a bump in the cover. Takes a little bit of effort to pop it back in.


East to install. Great fit, very durable and easy to operate


Love this cover. Absolutely worth the money. Will buy again on my next truck. Everything is locked securely, cover is sturdy, rolls up nice, and makes no noise when driving with the back window of the truck open. I don’t feel you would regret purchasing this.


The Revolver looks clean and is very secure. I get compliments on it all the time! Been installed for just over a year now and still looks great!
Customer service is top notch!!
I love the videos guys. They answer so many questions and help you decide. Thank you for taking the time to make all of them. Smartest thing ever!!!


Love the streamlined fit and added security of this cover. After one year I experienced the same issues others had reported. The hinges used for rolling the cover came separated and caused the closure of the cover to be extremely difficult. Also started to have the vinyl covering separate from metal frame. Thankfully BAK industry stands by the product and replaced the cover under warranty. New cover was shipped for free and already installed. Not 100% waterproof but acceptable trade off for the added protection of aluminum cover. Hopefully the issues with the hinges have been resolved but still have a 5 year warranty.


I was able to install this cover, with help from a friend, on my 2015 Chevy Silverado 6.5' bed in about 45 minutes. Everything aligned perfectly, it closes smooth, seals well, kept out the rain from a torrential rainstorm the next day. The matte finish on the vinyl matches the plastic on my truck, and doesn't look cheap like most other covers. I love the low profile between the rails look, the truck looks like their isn't a cover on until you get above the bedrail. Totally happy with this product!


Easy to install and a great fit on the bed of the pick-up. As advertised, great looking and very functional tonneau for your truck!


Love this cover. It was a bit tricky to figure out how this works as the Honda Ridgeline requires a kit that comes with it so it'll fit. Once this step was completed, the rest of it was not too hard to figure out.


1 year of use and no regrets. Phenomenal tonneau cover and it was so easy to install I did it in the dark. This is my 2nd truck that I have installed a BAK product on and I am completely satisfied.

Show More Reviews

See what our Experts say about this BAK Industries Tonneau Covers

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    In order to use the BAK Revolver X4s Hard Tonneau Cover part # BAK49ZR on a 2017 Ford F-350 with 8' Bed we would have to recommend you remove the ramp plate. Unfortunately, neither we nor Bak has tested this cover with the ramp plate. It's possible you can nudge the cover more towards the cab for clearance but this also means there could be a gap to let water in.
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  • How Much Does The BAK Revolver X4s Hard Tonneau Cover For 2024 Ford F-350 8' Long Bed Weigh?
    The BAK Revolver X4s Hard Tonneau Cover # BAK49ZR for your 2024 Ford F-350 long bed has total weight of 90lbs.
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  • Best 2023 Ford F-350 Long Bed Tonneau Cover for Gooseneck Towing and 3rd Brake Light Camera
    The absolute best tonneau cover for your 2023 Ford F-350 Super Duty long bed is the BAK Revolver X4s: - BAK Revolver X4s Hard Tonneau Cover # BAK49ZR This is by far my favorite cover to recommend because it combines the sleek look of a soft cover with the durability of a hard cover as it's a roll up cover with aluminum slats. This means that you get security when your tailgate is locked, a good looking cover, plus your 3rd brake light camera won't be obscured when this cover is rolled up.
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  • Best Tonneau Cover for a 2022 Ford F-250/F-350 for 5th Wheel Towing
    The BAK Revolver X4s Hard Tonneau Cover is a great option for trucks with fifth wheel hitches as you can secure the cover at the cab when towing, the cover sits flush to the bed so there won't be clearance issues with the hitch when closed, and it has a hard shell so it will provide security with the tailgate shut and locked. It also rolls up like a soft cover for ease of use. The correct one is part # BAK99ZR for 6-3/4' beds or part # BAK49ZR for 8' beds.
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  • Will The BAK Revolver X4s for a 2023 Ford F-350 8' Long Bed Cover The Front Portion Of Bed Only?
    The BAK Revolver X4s Hard Tonneau Cover # BAK49ZR which fits your 2023 Ford F-350 8' long bed has to be in either the fully rolled up or fully covered position. If you go with a cover like the BAKFlip MX4 Hard Tonneau Cover # BAK48331 you will be able to have the panels folded up on the front of the bed partially covering your bed.
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  • Will Extang EnCore Fit with 5th Wheel Trailer on a 2018 Ford F-350 Long Bed
    You should be able to install a 5th wheel hitch and couple up to your 5th wheel trailer with the Extang EnCore Hard Tonneau Cover # EX62430 installed and in the folded up position on your 2018 Ford F-350 Super Duty but it will definitely reduce your turning clearance. I have some similar recommendations for you though. I recommend going with the BAK Revolver X4s Hard Tonneau Cover # BAK49ZR instead. This combines the sleek look of a soft tonneau with the durability of a hard tonneau due...
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  • Ladder Rack and Tonneau Cover Recommendation to Fit 2017 Ford F-250 Long Bed
    Yes, since the Adarac Ladder Rack part # A70620 installs by attaching to the tops of the bed rails on your 2017 Ford F-250 long bed you can install the BAK Revolver tonneau part # BAK49ZR as well since it mounts between the bed rails.
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  • How Much Space Does BAK Revolver X4s Take up at Front of Truck
    The BAK Revolver X4s Hard Tonneau Cover, short bed # BAK99ZR or long bed # BAK49ZR, measures about 8" when rolled up. It doesn't roll up completely up to the front so it will probably hang over the bed about 9" or 10" so you'll want to take that into account with your toolbox. Please note that it your toolbox spans the entire width of your truck bed then you may have trouble opening it with any tonneau cover installed due to the rails that will be sitting inside the bed rails. You may...
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  • Can BAK Revolver Tonneau Cover Fit Ford F-250 with TracRac SR Ladder Rack
    Yes, the BAK Revolver X4s is actually the only tonneau cover that fits your 2023 Ford F-250 with the Thule TracRac you have because it rolls up narrower than the base rails of the ladder rack. So if you have a long bed truck you would want the part # BAK49ZR or if you have a short bed truck # BAK99ZR. You should be able to install the cover with the ladder rack installed but it would be easier if you removed it.
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    I have an option that will allow you to fit a Thule TracRac ladder rack on your 2017 Ford F-250 but you have to go with the sliding TracRac ladder rack part # TH43003XT-000 that you referenced as it fits through the top of the truck bed rails and allows clearance for a tonneau to fit. Now the only tonneau cover we know fits and clears well with this rack is the BAK Revolver part # BAK49ZR as it's rail system is far enough to the inside of the bed rails that it can roll up without interfering...
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  • Will BAKBox 2 Work with RetraxPRO MX Tonneau Cover for 2017 Ford F-350 Long Bed
    The BAKBox 2 Collapsible Truck Bed Toolbox # BAKBX92333 is designed to work with rails on the BAK Revolver X2/X4s, Roll-X (discontinued), and BAKFlip tonneau covers. Although the BAKBox 2 has not been tested for compatibility with the RetraxPRO MX Hard Tonneau Cover for your 2017 Ford F-350 long bed, part # RT80384, from what I can see, it's highly unlikely that they would work together. Below are the correct part numbers for the available tonneau cover options that do work with the #...
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  • Recommended Tonneau Cover For A 2012 Ford F-350 With Fuel Tank Tool Box
    Base on the pictures of your fuel tank/tool box it looks like the lid sits level with the bedrails of your 2012 Ford F-350 so the BAK Revolver X4s Hard Tonneau Cover # BAK49ZR is going to sit too low to be compatible. The aluminum backing will also roll up too large for you to open the lid on your tool box. Instead I recommend the TruXedo Deuce 2 Soft Tonneau Cover # TX769601 which will sit above the bedrails and will roll up to allow you to hook up your fifth wheel and use the rear hinge...
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  • Correct Thule TracRac SR Fit for 2018 Ford F250 Long Bed
    The correct Thule TracRac SR sliding truck bed ladder rack for a 2018 Ford F250 long bed is part # TH43003XT-000. I've linked to a product demonstration/install video showing the rack being installed. The TracRac SR ladder rack has generous 1250 lb capacity so you'll likely run out of stuff to put up there before you run out of capacity. The rack uprights can be slid fore and aft to adjust for all kinds of different length loads. One really convenient feature- the sliding rails sit completely...
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  • What Ladder Rack Fits with the BAK Revolver X4s # BAK49ZR on My 2018 Ford F-350 with 8-Ft. Bed?
    Since we do not carry the Adarac Extreme Mid Height Triple Crossbar Rack and since we do not know exactly how the rack installs, we cannot confirm with absolute certainty that the Bak Revolver X4s # BAK49ZR (BAK 80331) works with the cover on your 2018 Ford F-350 Super Duty with an 8-foot bed. Judging by the photos, though, the rolled-up cover most likely will interfere with the mid-height bars of the rack. Also, the X4s only works with ladder racks that install directly into the stake...
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  • Recommended Tonneau Cover Options For A 2023 Ford F-350 With 8' Bed
    Not every cover uses a styrofoam filler so it's really dependent on the materials used and the overall quality of the cover. Styrofoam can absorb water though so what you heard isn't untrue. Since you'll have a trailer hitch in the bed the easiest option would be to either use a roll-up or retractable cover to avoid having any issues with the cover being in the way while hauling your trailer. If you'd like a roll-up style then the BAK Revolver X4s Hard Tonneau Cover # BAK49ZR would be...
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  • Sliding Thule TracRac Ladder Rack and Tonneau For 2019 Ford F-450 Long Bed
    Yes, Thule does have a sliding SR TracRac that fits your 2019 F-450 long bed with the part # TH43003XT-000 I just checked with them to confirm. Then for a roll up tonneau you'd need the BAK Revolver # BAK49ZR and you'd be set. This is only option currently that fits with TracRac ladder rack as well.
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  • What Ladder Rack will Work with the BAKFlip MX4 Hard Tonneau Cover on a 2018 Ford F-350
    I do have options for you but the Thule TracRac SR Sliding Truck Bed Ladder Rack part # TH43003XT-000 won't work with the BAKFlip MX4 Hard Tonneau Cover part # BAK48331 on your 2018 Ford F-350. The reason for this is because the uprights on the ladder rack are angled inward and the folding slats on the MX4 would come into contact with the uprights when lifted. You may be able to open the first slat if you moved the rear upright all of the way forward but this is surely not ideal. Instead,...
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  • Ladder Rack & Tonneau Cover Compatible With 2018 Ford F-450 Super Duty
    While we have an option for a ladder rack and tonneau cover that fits your 2018 Ford F-450, there isn't a tonneau cover that will work with a rack that mounts inside the bed rail. The reason for that is all tonneau covers either use or sit up against the bed rail when installed, so there would be interference with a rack. The best option is going to be a ladder rack that mounts on top of your F-450's bed rail, and a tonneau that mounts inside the rail. For the rack, what you will need...
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Info for this part was:

Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Written by:
Matthew S
Employee Daron K
Edited by:
Daron K
Employee John S
Video by:
John S
Employee Evangeline M
Installed by:
Evangeline M

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