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  1. Tonneau Cover
  2. Lomax
  3. Fold-Up - Soft
  4. Rack Compatible
  5. Low Profile - Top of Bed Rails
  6. Aluminum
Lomax Hard Tonneau Cover - Folding - Aluminum - Black Diamond Mist
Lomax

Lomax Hard Tonneau Cover - Folding - Aluminum - Black Diamond Mist

Part Number: LOM39NR
In Stock
$1,204.45
Retail:$1,417.00
You Save: $212.55
Tonneau Cover

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Tri-fold cover combines a stylish, low-profile look with maximum protection for your truck bed and cargo. Impact-resistant, lightweight aluminum panels fasten to side rails at 10 points for security. Easy to remove without tools for full bed access. Great Prices for the best tonneau cover from Lomax. Lomax Hard Tonneau Cover - Folding - Aluminum - Black Diamond Mist part number LOM39NR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Lomax Tonneau Cover - LOM39NR

  • Fold-Up - Soft
  • Rack Compatible
  • Low Profile - Top of Bed Rails
  • Lomax
  • Aluminum
  • Diamond Plate
  • Opens at Tailgate

Tri-fold cover combines a stylish, low-profile look with maximum protection for your truck bed and cargo. Impact-resistant, lightweight aluminum panels fasten to side rails at 10 points for security. Easy to remove without tools for full bed access.


Features:

  • Custom-fit, hard tonneau cover protects your truck bed and cargo from the elements
  • Tri-fold design - cover folds up for quick access to two-thirds of your bed
    • Integrated storage clips with retractable straps keep folded panels secured
    • Folded panels can be easily removed without tools for full bed access
  • Low-profile cover sits approximately 1/2" above the bed rails for a streamlined look
    • Reduces wind drag and improves fuel economy
  • Latches at the tailgate let you easily open and close cover
    • Panels automatically secure to side rails at 10 points as they are unfolded
    • Closed cover locks truck bed when used in conjunction with closed and locked tailgate
    • Release cables at tailgate let you easily open cover from driver's or passenger's side
  • Impact-resistant aluminum panels are heavy duty yet lightweight
  • Durable aluminum side rails support panels with a high strength-to-weight ratio
    • Leave stake pockets uncovered for use with racks and other gear
  • Rubber seals and reinforced, vinyl-coated panel hinges keep water and dust out of truck bed
    • Slight arc in cover also helps shed water and eliminates the need for drain tubes
  • Black diamond mist finish absorbs impacts and is UV protected and scratch resistant
  • Simple, no-drill installation
    • 8 Tight Bite clamps secure cover side rails to truck bed rails
    • Panels secure to side rails with hooks and latches
  • Made in the USA


Specs:

  • Weight capacity: 400 lbs
  • 3-Year limited warranty


The Lomax hard tonneau cover provides complete protection for your truck bed and cargo. The tri-fold panels latch to the cover side rails at 10 points for enhanced security. These lightweight, impact-resistant aluminum panels can also be removed in seconds without tools for full bed access. The watertight cover opens with the pull of a cord at the tailgate, and it stores in the folded position at the cab with integrated storage clips and retractable straps.


Tri-Fold Design for Easy Bed Access

Fold panels for quick truck bed access

The cover has 3 panels that fold up for easy access to two-thirds of your bed.


Latch with release cable

To open the cover, simply pull one of the release cords on the driver's or passenger's side near the tailgate. Fold the rear and center panels on top of the front panel. There are built-in handles included to make this process easy.


Storage clips with retractable straps

The folded panels secure in place at the cab with integrated storage clips with retractable straps. Vinyl-coated spacers with rubber pads protect the folded panels by keeping them properly spaced. This ensures the cover will stay firmly in place while driving on a bumpy road, and limits metal-on-metal contact to reduce noise and vibration for a quieter ride.


Panels folded up for hauling flexibility

You still have plenty of rear window visibility with your tri-fold tonneau open. You can also haul long or tall items at the tailgate while still covering up cargo such as a toolbox that's stored closer to the bulkhead of the truck.


To access your full truck bed, lift up on the folded cover, and slide it away from the bulkhead of the truck. This will disengage the mounting hooks from the front catches on the side rails and allow you to completely remove the panels from the bed. Unlike many soft or hard covers, there are no hook-and-loop fasteners, snaps, or hardware to struggle with while operating the tonneau.


Sleek, Low-Profile Design

Low-profile design

The low-profile cover sits approximately 1/2" above your truck bed rails for an overall streamlined appearance. This aerodynamic design - when paired with a covered truck bed - also reduces wind noise and drag and helps to improve fuel economy. The tonneau features a black diamond mist finish that is impact absorbent, UV protected, and scratch resistant.


Maximum Security

This hard cover is great for protecting your fifth wheel or gooseneck connection. It deters theft far better than soft covers that can be cut open with a knife. There are no exterior latches, so no one can access your truck bed.


Hooks and latches highlighted

The tri-fold panels automatically secure to the side rails at 10 points when closed. This helps to prevent would-be thieves from prying open the cover. These 10 security points consist of 2 hooks that slide into catches at the front of the truck bed, 4 additional hooks that fasten along the aluminum channels, and 4 latches that automatically engage to the side rails when the cover is lowered into the retainment brackets. Your cargo and truck bed are completely secured when the cover is closed and your tailgate is locked.


Heavy-Duty Construction

Closed cover protects cargo

The 3 heavy-duty panels are constructed of high-caliber aluminum that is 20 percent stronger than aluminum truck body parts. These impact-resistant panels can withstand hail and falling objects.


The tri-fold panels hold up to 400 lbs. of evenly distributed weight, yet they are light enough to be picked up by one or two people. The tonneau cover only weighs approximately 50 lbs. for a high strength-to-weight ratio.


Weathertight Protection

Weathertight rubber seal

The tonneau cover is designed to seal your bed from the elements to protect your cargo. To prevent water and dirt from entering the truck bed, the cover overlaps the bed rails with continuous watertight rubber seals along the entire length of the side rails. The vinyl-coated panel hinges are also waterproof.


Additionally, the cover has a barely visible arc to route water off the cover in the same way that a road has a slight grade to shed rain away. This water-shedding design - coupled with the other weathertight features - eliminates the need for drain tubes.


Simple, No-Drill Installation

The cover rails mount to the inside lips of the truck bed side rails. Simply place each rail against the lip and secure it in place with 4 Tight Bite clamps. Your stake pockets are not covered up, so they are still free for accessories.


Installing panels onto side rails

Angle the cover towards the bulkhead of the truck and slide it forward along the side rails until the mounting hooks engage the front catches on the side rails. Lower the cover into the retainment brackets, and unfold the cover. The cover will automatically latch to the side rails as you unfold it.


Safety straps with carabiner

For additional safety, attach the carabiner on the safety strap to the bracket located between the front and center panels.



B4050129 Lomax Hard Tonneau Cover - Folding - Aluminum - Black Diamond Mist

Installation Details LOM39NR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Lomax Hard Tonneau Cover - Folding - Aluminum - Black Diamond Mist - LOM39NR

Average Customer Rating:  4.7 out of 5 stars   (89 Customer Reviews)

Tri-fold cover combines a stylish, low-profile look with maximum protection for your truck bed and cargo. Impact-resistant, lightweight aluminum panels fasten to side rails at 10 points for security. Easy to remove without tools for full bed access.

by:

Well, it's been a year since installation of the Lomax Hard Tonneau Cover on my 2023 Titan. I can say this is the best hard cover for me and how I use my truck. I use the bed mainly to carry hand tools. I have not had any water intrusion in the truck bed since installation. If I need to haul bulky items then I just fold it up and latch it down to open up the truck bed. In the thirty-five years of truck ownership, I have owned many tonneau covers from cheap to expensive. The Lomax is by far the best tonneau I have ever used. You won't be disappointed.



by:

Installed on a Rivian R1T. The cover itself looks pretty good, nice and flat. The rear squared-off corners and flat edge look a little janky compared to the curved rear edge of the R1T. Functionally I like the way the cover self-locks in two middle locations as you unfold it; the corded lock and release at the tailgate is also very easy to use. Rail installation was painful. The shim piece is supposed to fit between the plastic bed cap and the plastic bed liner and in several places there just wasn't room to force it in. This is more of a knock on the Rivian truck build than this cover but be aware there could be some frustration there. Total vertical clearance between the top of the bed ridges and the bottom of the cover's support rails is about 17 1/2 inches.



by:

I’m not sure I got a new top. Box was half open and scratches all over the top of the cover and there were bare aluminum edges. I didn’t notice these gripes until after it was installed and cleaned off. That’s another thing, all the parts were covered in dust. The installation was easy and it seems to fit well. Might be a smart idea to place thin foam sheets between folded parts for shipping. Note, this shipped direct from Agri Cover so not fault of eTrailer. Agri Cover, if you read this, I’m not a happy customer.



by:

The delivery took a little longer than expected. Installation took about 25-30 minutes. I like it. It works as expected and looks so cool. It does leak just a small amount in the front passenger corner. I think with a little bit of settling, it'll be fine. Perhaps someone there can give me some advice on correcting that.



by:

Love the cover, I think it is holding up great. It works well when hauling my 5th wheel toy hauler.



by:

we installed the Tonneau cover and it was the best-looking item for my truck. I also ordered side boards for my truck from e-trailer too and they were just as good. I am very pleased with the items that were purchased. I believe they are very durable and will withstand the Phoenix heat here. thank you, etrailer.



by:

Good quality, easy to install and remove , and it looks good. Gear in the truck bed stays protected and dry. No issues with water getting into the bed even in heavy rain and snow. Very satisfied with this cover.



by:

It arrived a week ago and I got it on. The weather was really nice here today so I took it out for a wash and took some photos thinking I would put a review up with photos since I didn't see any photos on the product's page of it on a Rivian. This evening I got on the site and I don't see an option to write a review. You guys want some pics of a Rivian with the cover? (Maybe I really just want to spread pics of Rivians lol)

Here's one from my garage. I can take some to show off the cover. I got the tailgate ends of the rails adjusted this evening and the cover is perfectly flat now all the way around and it looks really sharp on the vehicle



by:

Easy to install the frame rails on the Rambox bed. Made slight adjustments to allow the lids to open and close freely.
I like the flush look of this vs the soft cover, plus the added security it offers being rigid aluminum.



by:

Lightweight & strong. This cover has gotten alot of compliments & looks great, works well. My only criticism is that the heavy rains can let in a little water but otherwise its perfect and should last a long time to come!



by:

Perfect fit. I was expecting a black cover, but this looked great and turns out to be a real attention getter.
Items well secured when the tailgate is locked. No worries of someone cutting through a cloth cover.



by:

Very nice. Really sharp looking. This has been the best tonneau cover we have ever had.



by:

The Tonneau arrived packaged well and delivered in a fairly timely manner. Its really easy to install, took me about 30 minutes. Seems really well made and I am really happy with Lomax's quality. It weights in total about 75 pounds but once the rails are installed on the bed, the cover is surprisingly easy to take on and off if you need to fully remove it.



by:

I texted for confirmation regarding Lomax Hard Tonneau Cover. You insure that it would fit and it did. The cover will come back off in a matter of minutes. Needed for a seven day travel time to Faibanks, Alaska from Washington County, Texas.



by:

The cover was as described and installed easily (about 30 minutes). It seems secure and will allow me to store supplies in the truck without worrying so much about casual thieves. I was a bit disappointed in the deliver time as it was about 3.5 weeks. The cover was shipped from the manufacturer and no real information was given at the time of ordering as to how long it would take to deliver. Also, the corner of one of the plates was bent upon arrival and needed to be straightened. Otherwise, an excellent product and I am happy to have it on my truck.



by:

The Lomax Cover looks great on my 2021 F-150 truck. I really trust the Lomax name brand for durability and cost. I was able to install the cover in about an hour.



by:

Fairly quick delivery, especially during the holiday season. Super easy install and love the look. Still in the suggested 48 hour initial period so haven't removed the cover and reinstalled it, but if the original install is any indication, it will also go smoothly.



by:

Although the box came in a questionable condition the contents were untouched and nothing was missing. To unpack, inspect and install the cover took me about 30-40 minutes. Installation is very easy without reading instructions. No adjustments needed. The cover is very well made and solid. I hope it will last for a long time.



by:

Beautiful solid tonneau cover with sleek lines.Perfect factory fit with easy install.
A++++ Seller also.



by:

High quality cover arrived in 2 days from ordering.
.
This "hardcover" fits much better that the several less expensive vinyl covers I purchased previously. Definitely worth it.

RM



by:

Seals better than the last cover I had and looks great. No drain tubes to deal with.



by:

Fit perfectly, easy to install. Looks good on my truck



by:

This cover replaced a second soft folding cover. The intense sun here in AZ destroys things in quick fashion. Spending a bit more for a hard cover was the correct move. Installing by myself was challenging but after figuring out the clamping system, I prevailed! There were three different clamps that came with the unit. Viewing a Youtube video on installing this cover, they only showed one type of clamp for both sides of the bed rails. I used the short clamps (4) for the bed front, long clamps (2) for the midsection, and long clamps w/plates (2 for the back near the tailgate. Since my bed is covered with a rubberlike coating, I had to cut out the two plugs from the stake pocket holes in order to install the back clamps. I have an undercover swing out tool box so opening and closing the back panel is so much easier than the soft cover units. I like the slim design and the black diamond surface looks great!



by:

Very good product, easy to install. Very strong while thin and easy to fold.
I certainly recommend this product.
It installed on the side rails inside the bed.
The look is great. So far the best I ever had.
But the most is that It could be removed completely very easily!! so I don't have any folded cover on the back window of my truck.....



by:

Great hard tonneau cover - its everything advertised and more. It is very durable, fits perfect, good value and a year old now, it still looks brand new, I would buy it again in a heart beat when its time to replace, but by the looks of it, it will be a while...I definitely recommend!!


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See what our Experts say about this Lomax Tonneau Cover


Info for this part was:

Employee Matthew S
Written by:
Matthew S
Employee Daron K
Edited by:
Daron K

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