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2001 Chrysler 300M
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BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish
Part Number: BAK48506
In Stock
$1,199.99
Retail:$1,398.78
You Save: $198.79
2001 Chrysler 300M
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- All Info
- Reviews (148)
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BAK Industries Tonneau Cover - BAK48506
Highlights
- Custom Fit for Your Vehicle: Secures to your truck bed with model-specific clamps and hardware
- Keeps Gear Safe and Dry: Aluminum panels, seals, and drainage help block rain and dust.
- Full Bed Access Fast: Folds up against the cab or opens partially without removing the cover.
- Strong and Durable: 1/2" rustproof aluminum panels hold up to 400 lbs evenly distributed.
- Clean, Low-Profile Look: Flush matte black finish resists scratches, scuffs, and UV damage.
- Easy, No-Drill Install: Clamps to bed rails and bolts on front hinge rail for secure fit.
Features to know about
All-Season Cargo Protection: ½" Thick Aluminum Panels
Keeping gear safe from weather and sun takes more than just a soft cover. The BAKFlip MX4 uses ½" thick, rustproof aluminum panels with a premium-density foam core for extra strength and insulation. Matte black rubber seals and a built-in drainage system help channel water away to keep the bed dry. The scratch- and UV-resistant matte finish holds up through heat, rain, and snow without fading or chalking.
Full Bed Use: Quad-Fold Design
Hauling large items doesn’t mean giving up bed protection. The MX4 folds in four sections so you can open just part of it or secure it fully upright using the built-in prop rods. That gives you complete bed access in seconds. The integrated buckle system holds the cover steady, whether it’s flipped up, folded, or shut, so you can keep working or hauling without removing it.
Secure and Simple Operation: Automatic Latching Panels
Security comes built in with the MX4. Each aluminum panel automatically latches when you close it, creating a locked bed once the tailgate is shut. The rear seal lets you open or close the tailgate with the cover up or down, so you never have to undo the whole system to reach your cargo. It’s a straightforward, reliable setup that keeps tools and gear out of sight and away from the elements.
Clean, Low-Profile Fit: Inside-Rail Mounting
This cover sits flush inside the bed rails for a smooth, factory look that doesn’t stick out or rattle. The aircraft-grade aluminum rails clamp on without drilling, while still leaving stake pockets free for accessories or racks. The matte black finish blends right in with the truck’s lines and stays looking sharp through daily use.
Built to Handle Real Work: 400-lb Capacity
The MX4 isn’t just for looks—it’s rated to hold up to 400 lbs of evenly distributed weight across the panels. That means you can stack up gear, parts, or supplies without worrying about flex or sag. Strong aluminum rails and a black powder-coated frame tie the system together for long-term durability on and off the job.
Specs
Material and Finish
- Panel Material: 1/2" thick, rustproof aluminum
- Panel Finish: Matte black
- Rail Material: Aircraft-grade, rustproof aluminum
- Rail Finish: Black powder coat
- Seal Material: Matte black rubber
- Core: Premium density foam
Weight and Capacity
- Weight Capacity: Up to 400 lbs of evenly distributed weight
Design and Features
- Design Type: Quad-fold (tri-fold for 5-foot bed models)
- Mounting Style: Inside bed rails (flush profile)
- Operation: Tailgate opens and closes with cover up or down
- Locking System: Automatically latching panels
- Drainage: Built-in drainage system
- Positioning: Prop rods for upright position
- Buckle System: Integrated buckle system for folded, flipped up, or closed positions
- Compatibility: Compatible with stake-pocket-mounted accessories and raised side rails
- Accessory Compatibility: Compatible with BakBox2 (sold separately)
Performance and Durability
- Finish Resistance: Resistant to scratches, scuffs, and UV rays
- Weather Protection: Rubber seals and integrated drainage help keep water out of bed
Installation
- Installation Method: No-drill installation
- Mounting Hardware: Frame rails clamp to inside of bed side rails; bolts secure front hinge rail to frame rails
- Utili-Track Compatibility: Compatible with Utili-Track System on Nissan Frontier
Warranty and Origin
- Warranty: 5-Year warranty
- Country of Manufacture: Made in the USA
448506 BAK Industries BAK Flip MX4 Hard Folding Truck Bed Cover
Replaces 48506
This Product Fits The Following Vehicles
- 2009 - 2012 Suzuki Equator 5 Foot Bed
- 2005 - 2021 Nissan Frontier 5 Foot Bed
Ratings & Reviews
4.6
148 reviews
by:
Jon
06/19/2018
Nissan
Frontier
This is my second Bak-flip bed cover. First one (aluminum) was on an F-150, second (fiberglass) on a Nissan Frontier. Both have been wonderful, and almost completely leak-free. Only place water has ever gotten in, is at the back corners near the tail gate, and that was only at the car wash. Installation was a snap, and operation has been flawless. Only thing that I would like different is an optional window in each panel, so when it's folded all the way up, you could see your load in the rear view mirror. You know, to make sure it's still there.
I recommend getting the fiberglass over the aluminum, if you live in an area where hail larger than pea-size is a possibility. Great product.
I recommend getting the fiberglass over the aluminum, if you live in an area where hail larger than pea-size is a possibility. Great product.
by:
John
06/01/2022
This is my second purchase from etrailer. I have purchased two hard Tonneau covers for two separate trucks. I have been very happy with both purchases and have nothing but excellent service from etrailer.
by:
Jacob
03/30/2026
Never fit my truck, and etrailer tried to charge a 50% restocking fee.
Even though they guaranteed it would fit. Be weary before buying.
Even though they guaranteed it would fit. Be weary before buying.
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.
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!
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:
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:
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:
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:
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:
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:
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:
Dean
04/21/2021
the bedcover finally came in.
Few pictures of it installed.
Few pictures of it installed.
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.
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Show More Reviews
See what our Experts say about this BAK Industries Tonneau Cover
- Installing BAK MX4 or F1 Tonneau Cover on 2019 Nissan Frontier with Utili-Track Rails I reached out to my contact at BAK and she said that on your 2019 Nissan Frontier, both the MX4 # BAK48506 and the F1 BAK72506 Hard Tonneau Covers will actually rest right above the Utili-Track system on the truck, maintaining full function of the system without any interference. One a lot of the Titan model trucks (especially older models) the covers do need to mount to the rails, which limits their function, but that is not the case with most of the newer Titans and your 2019 Frontier....
view full answer... - Difference Between BAK G2 and MX4 Tonneau Covers for a 2018 Nissan FrontierOn your 2019 Nissan Frontier the BAK G2, part # BAK26506, and MX4, part # BAK48506, tonneau covers are a lot a like. The biggest difference is the MX4 is compatibe with the BAKBox, part # BAK92100, which is a storage box. Also the MX4 has a matte finish where the G2 is glossy. Other than that they're both great tri-fold aluminum covers that fit your truck.
view full answer... - Difference Between Bak G2 and MX4 Folding Tonneau Covers for 2017 Nissan FrontierFor your 2017 Nissan Frontier the Bak MX4 part # BAK48506 and the BAKFlip G2 # BAK26506 are both pretty similar in that they are folding aluminum tonneau covers that will fit and work great, but there are a few differences. The MX4 is also compatible with the BakBox which is a storage box, part # BAK92100. The MX4 also has a weight rating of 400 lbs evenly distributed on it while the G2 isn't rated at all.
view full answer... - How Many Panels Does BakFLIP MX4 for 2005 Nissan Frontier 5 Foot Bed HaveI checked with BAK and the MX4 part # BAK48506 for your 2005 Nissan Frontier with the 5 foot bed is a tri-fold cover which means it has only three panels and not four.
view full answer... - Is the BAKFlip MX4 # BAK48506 Compatible with the Utili-Track System on a 2017 Nissan FrontierThe Utili-Track system on your 2017 Nissan Frontier will not get in the way of installing the BAKFlip MX4 Hard Tonneau Cover. I spoke with my contact at BAK Industries who confirmed this. The correct MX4 for your 2017 Frontier is found as part # BAK48506 on our site. Installation instructions have been linked for you to reference.
view full answer... - Will etrailer Hard Tonneau Cover For 6' Bed Fit 2017 Nissan Frontier With 5' BedHi Karya; I'm sorry to say the etrailer Hard Tonneau Cover # e65DR only fits models with a 6' bed. If you want a hard folding cover for your 5' bed I recommend the BAKFlip G2 Hard Tonneau Cover # BAK26506. This does lock with the tailgate so everything will remain secure, and it comes with a 3-year warranty. BAK also has the newer BAKFlip MX4 # BAK48506 for a little more which has higher-strength panels and better weather sealing with a 5-year warranty.
view full answer... - Tonneau Cover for 2014 Frontier Crew Cab with 5 Bed, Utili-Track, and Bed Rail CoversWe have the following options for your 2014 Nissan Frontier Crew Cab with 5 foot bed: BAK Revolver X2 Hard Tonneau Cover - Roll Up - Aluminum and Vinyl # BAK39506 BAKFlip G2 Hard Tonneau Cover - Folding - Aluminum # BAK26506 BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum - Matte Finish # BAK48506 BAK Revolver X4s Hard Tonneau Cover - Roll Up - Aluminum and Vinyl - Matte Black # BAK38ZR These covers will be compatible with the Utili-Track system and the bed rail covers because of...
view full answer... - What Tonneau Cover and Ladder Rack will Work with My 2008 Nissan Frontier? For a tonneau cover and ladder rack that fits with the utilitracks system on your 2008 Nissan Frontier (5-foot bed), I recommend the BAKFlip MX4 Hard Tonneau Cover - Folding - Aluminum # BAK48506 and the Thule TracRac SR Sliding Truck Bed Ladder Rack - 1,250 lbs # TH43001XT-603. Since the MX4 fits inside the bed rails of the truck, it keeps the stake pockets open to attach the Thule TracRac SR. I confirmed with BAK that in order to use the utilitracks with the BAKFlip, you need to flip...
view full answer... - Does BAK Flip MX4 part # BAK48506 Fit 2017 Nissan Frontier with Utili Track SystemThe Utili-Track system on your 2017 Nissan Frontier will not get in the way of installing the BAKFlip MX4 Hard Tonneau Cover # BAK48506 that you referenced. We spoke with our contact at BAK Industries who confirmed this.
view full answer...
Do you have a question about this Tonneau Cover?
Info for this part was:
Edited by:
Tyler C
Expert Research:
Jameson C
Video by:
Dustin K
Installed by:
Hayden R
Updated by:
Wilson B
Updated by:
Jason W
Updated by:
Noah M
Written by:
Ronnie R
Video Edited:
Zach D
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Mike L.
4/2/2026
I'm sorry that happened Jacob. I'll get that straightened out for you....