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  1. Tonneau Cover
  2. Retrax
  3. Retractable - Manual
  4. Low Profile - Top of Bed Rails
  5. Hard Plastic
  6. Matte
THIS ITEM IS NOT A FIT FOR
2009 Toyota FJ Cruiser
etrailer Installation
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Retrax

RetraxONE MX Hard Tonneau Cover - Retractable - Polycarbonate - Matte Black

Part Number: RT60421
In Stock
$1,599.99
Retail:$1,668.88
You Save: $68.89
Tonneau Cover
Not Confirmed to Fit

2009 Toyota FJ Cruiser

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In Use/Installed

etrailer Installation
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Retractable cover opens and closes manually with a pop-up, locking handle that provides excellent security for your truck bed. Durable polycarbonate is long-lasting and supremely weather resistant. Sleek, streamlined design complements your vehicle. Great Prices for the best tonneau cover from Retrax. RetraxONE MX Hard Tonneau Cover - Retractable - Polycarbonate - Matte Black part number RT60421 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (34)
  • Q & A (0)
  • Videos (2)
  • Photos

Retrax Tonneau Cover - RT60421

Highlights

  • Custom Fit for Your Vehicle: Secures to your truck bed with model-specific clamps and hardware
  • Gear Stays Protected: Locking hard cover keeps cargo secure and hidden from view.
  • Full Bed Access Fast: Retracts smoothly with sealed ball-bearing rollers and no binding.
  • Built for Any Weather: Polycarbonate handles -50° to 200°F and resists UV, snow, and rain.
  • Looks Clean and Sleek: Low-profile matte black finish sits just 1" above bed rails.
  • Quick No-Drill Setup: Clamps onto bed rails; includes 2 drain tubes for water control.
Made in USA

Features to know about

Smooth Everyday Use: Retractable Manual Design

Getting in and out of the truck bed shouldn’t be a chore. The RetraxONE MX glides open and closed with sealed ball-bearing rollers, so it moves smoothly without needing grease or adjustment. The pop-up locking handle lets you slide the cover with one hand, and you can stop and lock it anywhere along the rails. That means you can cover gear up front while leaving room for long items in back, or close it completely for full security.

Close-up of RetraxONE MX tonneau cover pop-up handle used to open and close the retractable cover manually.

Transparent view of RetraxONE MX tonneau cover fully retracted into space-saving canister showing spiral track system.

Partially open RetraxONE MX tonneau cover latched mid-way along truck bed rails for adjustable cargo access.

Year-Round Protection: Polycarbonate Construction

Rain, snow, and sun don’t faze this cover. It’s made from high-quality polycarbonate (Lexan) that stays strong from -50° to 200°F without swelling, cracking, or fading. Built-in weather stripping and foam seals keep out dust and moisture, while the overlapping tailgate edge blocks leaks at the rear. Two drain tubes route any water out of the canister to keep things dry inside.

Close-up of RetraxONE MX tonneau cover bulkhead weather strip providing watertight seal against moisture and dust.

RetraxONE MX tonneau cover drain tube shown attached to canister for directing water out of truck bed.

Built to Last: Reinforced Strength and Low Profile

Embedded 5/8" thick aluminum I-beams every 4-3/4" add impact resistance and let the cover hold up to 200 lbs of evenly distributed weight. The matte black finish resists scratches and UV damage, and the low-profile side rails sit just 1" above the bed for a clean, flush look. The canister’s angled bottom frees up extra space underneath for longer cargo.

Ford Raptor truck equipped with RetraxONE MX matte black retractable tonneau cover showing sleek low-profile design.

RetraxONE MX tonneau cover fully extended showing flush fit with canister and low-profile streamlined design.

Angled canister of RetraxONE MX retractable tonneau cover showing compact design that maximizes truck bed space.

RetraxONE MX tonneau cover installed over 5th-wheel hitch showing low-profile clearance compatibility.

Secure and Simple: Locking Handle and Sealed Design

When closed, the RetraxONE MX locks flat against the rails and can’t be pried up, keeping gear hidden and secure when paired with a locked tailgate. The lock itself is protected under a weather-guarded lid to keep dirt and moisture out. Because it operates independently from the tailgate, you can open either one without disturbing the other.

Closed RetraxONE MX tonneau cover showing concealed locking handle protected by flat lid for added security.

Open position of RetraxONE MX tonneau cover handle with key inserted showing unlocking process.

Truck with RetraxONE MX tonneau cover closed and tailgate open demonstrating independent operation.

Hassle-Free Setup: No-Drill Installation

Everything fits together with bolt-on clamps—no drilling required. The preassembled canister drops in as one piece, and once the rails are clamped on and drain tubes connected, it’s ready to use. The sealed, maintenance-free track system means you spend more time using your truck and less time adjusting your cover.

Two people installing RetraxONE MX retractable tonneau cover onto Dodge truck bed showing preassembled canister placement.

Specs

Weight and Capacity

  • Weight capacity: 200 lbs evenly distributed

Dimensions

  • Canister dimensions: 13-1/2" deep x 12" tall

Warranty

  • Limited lifetime warranty

60421 Retrax RetraxONE MX Hard Bed Cover - Retractable - Lexan - Matte

Installation Details RT60421 Installation instructions

This Product Fits The Following Vehicles




Video of RetraxONE MX Hard Tonneau Cover - Retractable - Polycarbonate - Matte Black
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for What to Know About the RetraxONE MX Hard Tonneau Cover

Evangeline Hey everyone, today we're taking a look at the RetraxONE, hard tonneau cover right here at etrailer. So this is the RetraxONE MX it's a hard tonneau cover. It's low profile. It has a canister style. It also has things like drain tubes, side rails, clamps. We'll talk about all of those different features.

And then that way, you can see what is the difference between different tonneau covers. And is this the right one for you. Especially given that I've installed a lot of tonneau covers, is I really like how sleek this one looks. It looks great. Especially here on the Nissan frontier.

It's very low profile with that canister style. It doesn't take up much room behind our window. Plus, we can see that no matter where you wanna secure it, you can secure it quickly and easily. You have those different options. The downsides though, with that latch, it's only over here.

So if I wanted to go and open it up towards the cab or over here on the passenger side that is not an option for me. I have to do everything over here. Now opening it up. I just need to push, but you would also have to reach all the way into the truck bed, to bring it back out. But that's just how it goes with tonneau covers.

It's really up to you with what type of lifestyle are you going for What are you carrying in your truck bed Do you like that this has a 200 pound weight capacity and can be locked Or is the canister taking up space inside your truck bed, a deal breaker for you So first let's talk about hard and soft tonneau covers. This is a hard tonneau cover. It has slats that slide and it can also hold up weight. In fact, it can hold up to 200 pounds of evenly distributed weight. So soft tonneau covers usually have a canvas that's stretched out over the cover. And some people aren't completely comfortable with that because what if it tears What if someone tears it intentionally With a hard tonneau cover like this you don't have to worry about that. Now the difference's between other hard tonneau covers is some are tri folding tonneau covers. Where there are three rectangles that just fold onto each other. Others are like this, where they roll into a canister. This being a canister style means, no matter what position you have this tonneau cover in, it's going to be low profile. So some others they roll up, and then they cover your rear window. Here it rolls downwards, but there is a downside to that too. A canister will take up space inside of your truck bed. And the amount of space it will take up will depend on which type of tonneau cover you get for which type of truck. So for example, we have this installed on a 2022 Nissan frontier. The size of the canister is about, nine and a half inches from the top of the tonneau cover to the bottom of the canister. Which leaves us, nine and a half inches on the bottom of our truck bed. So for your truck, if you have a fifth wheel hitch right where I am here in the middle. You can see how you can lose some space on the front, just like as if you would have a toolbox. Plus you'd have to measure for the height of the tonneau cover. So to measure for the height, we have the side rails that sit on top of our truck bed sides. But they create rails for a tonneau cover. So your tonneau cover is actually sitting half an inch below your truck bed sides. So when you consider the half inch you lose from the side rails as well as the height of your truck bed. So for example with this Nissan frontier, we are left with 19 inches of actual truck bed height space. Now let's talk about using it. Opening and closing the tonneau cover and how easy that is. So this slides, back and forth really easy. But also you can lock it into place, wherever you want. So let's say you wanna close this part of your truck bed. Bringing that latch down means you cannot push this back and forth anymore. It's locked into place. So that gives you a lot more versatility compared to some other tonneau covers where they only have the all way open or the all of the way closed position. Plus, once you have this latch down. You can then use your keys to lock the tonneau cover. So when you're ready to drive away, you close the tonneau cover. You latch it into place with the option to lock it. And then, you close your tailgate. Even with the tailgate closed, you can actually open up your tonneau cover and push this open but it will take a lot more strength. But that way if you need to grab something real quick and you don't want to have to open up your tailgate, you can do so. The downside to that is you have to access it in the back driver's side. If you wanna access it over here in the passenger side or maybe up towards the cab, you do not have that option. All of it is operated by that latch. Now the RetraxONE MX definitely is a good looking tonneau cover. It's very sleek. It's very smooth. In fact, this has been on this truck for a couple months and it still looks almost new. It's very easy to clean off. It has a high quality polycarbonate material, and that matte black finish just makes things look nice and clean. Well what if a big storm kicks up, or how does it hold up to the elements Well, even though this one's been sitting out in the E trailer parking lot for every weekday for months, it still looks really good. You can see how that UV resistance has held up. And I don't see any fading, from the finish. Now for those storms, if you do have that water come down. You also have these drain tubes included with your tonneau cover. With them installed in the canister. This thing drains that water out of your own truck's drain holes. With this being custom fit it should work with your truck's own drain holes, but it really also depends on the truck. In fact, I had to drill this one out because we had this spray in bed liner that I had to drill through. So keep that in mind when installing this tonneau cover. But this was a look at the RetraxONE MX hard tonneau cover right here, at E trailer. My name is Evangeline and I hope you enjoyed the journey..

Ratings & Reviews

4.6

34 reviews
5 Stars
(27)
4 Stars
(4)
3 Stars
(2)
2 Stars
(0)
1 Star
(1)
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by:
2026 Ram 2500
It is a nice cover over all, install was quick and easy. However, the cover is a bit flimsy. While sitting there you can see slight high and low spots from one slat yi the next. And while driving the cover moves quite a bit in the wind. Had I known this i would have just paid the extra for the aluminum version. Like I said, it's a nice cover over all it just needs to be a little more rigid.
by:
Great product. Love the way it opens and closes so easy. It’s pricey, but well worth it. Very easy to install.
Heather A. profile picture
Etrailer Expert

Heather A.

4/11/2026

The cover looks awesome on your truck Arthur! What are you going to store under there?

by:
chevrolet Colorado
I purchased and self-installed this cover on my 2024 Chevy Colorado ZR2. Tracking of the shipment was spot on. Excellent communication by Kelly (etrailer customer support). Installation was simple and straightforward. The quality of the cover is excellent. Made in the USA. I highly recommend this cover.
Brooke M. profile picture
Etrailer Expert

Brooke M.

4/14/2025

Kelly is good people! I'll be sure she sees your review. Thanks for sending along the photos, too!

by:
This is my second Retrax poly cover. i had my first one for about 10 years and it worked well the entire time. I finally purchased a new truck and had to pick another cover and picked this one again for the quality and durability.
by:
Works as advertised and easy installation.
by:
2026 GMC Sierra 3500
I like how the top rolls up and out of the way when not needed. I should have ordered the Pro with the aluminum top. The composite top moves quite a bit when closed and driving down the road.
by:
Good product. Easy one person installation, second person needed for lifting and makes installation quicker.
by:
One year update: My RetraxONE MX still looks and performs good. For my application (fifth wheel protection) it was a good choice.
Rick W. profile picture

Rick W.

9/30/2023

Another year in the books, and I still believe this cover was the right choice for me. Still opens smooth and looks good. Had to replace the opening mechanism user error, but parts were readily available.

by:
Great service love e trailer
by:
It is extremely hard to open and close even with grease on the rails and proper alignment.
Nick S. profile picture
Etrailer Expert

Nick S.

11/17/2025

The number one reason causing trouble opening and closing the cover is either debris or misalignment. I would double check and inspect the rails for any debris and double check the alignment. Let me know if the issue does not change.

by:
2024 Ford F-250 Super Duty
Easy to install, great fit, looks fantastic. Arrived on time.
by:
I am very happy with the cover. It is exactly what I needed and it works great.
Thanks for the follow up. Everything I have ordered from etrailer has performed great.
You are my go to website.
Tom profile picture

Tom

2/1/2025

Stellar product. Exactly what I needed.

Robin H. profile picture
Etrailer Expert

Robin H.

2/2/2025

@Tom glad to hear it!
by:
2006 Toyota Tacoma
I spoke with Jesse who was very helpful in helping me pick out this product for my 2006 Toyota Tacoma. He was also very helpful when he informed me that I needed a tailgate lock. The product arrived in a timely manner and was as advertised. My daughters and I set up the RetraxONE MX Hard Tonneau Cover pretty quickly. The installation was simple and straight-forward. Would purchase again from etrailer.
by:
Nice so far. Easy installation.
by:
I was pleasantly surprised by the quality and durability. I like the ability to cover, lock and latch in partially closed position to help support large items. I'm sure I'm getting a little bit better gas mileage because of the drag reduction off the bed. The only drawback: the space that the canister takes up reduces your bed size. It hasn't impacted me yet as I have the larger bed size. If you have a bed extender, that will help. I definitely like the retractable better that the folding ones.
by:
Had had it long but very satisfied.
by:
Excellent product. Easy do it yourself installation and looks and works great. Very high quality.
by:
It fits great looks great it works e-trailer is a great company to use
by:
this is a great product if your on the fence pull the string easy to install works good.
Art R. profile picture

Art R.

4/8/2021

GREAT

by:
Installation straightforward, well built.
Randy profile picture

Randy

10/5/2022

I can slide cover over my 5th wheel hitch, easy to operate.

by:
A little challenging at first with the directions but with my neighbor helping we pulled through. 3-4 hours of slow methodical reading and working. Very nice product looks great and works as advertised.
by:
The unit shipped to my location with over a months delay. This was too late for our last camping trip of2 2021, which I was counting on using it. I installed this year instead. Some of the tapped holes need to be re-tapped. Also, drain plugs were a little tricky in that the hose interfered with that latching mechanism, so they did not latch correctly at first. The roll-up into the box does not seem as smooth as the videos seem to show. Roll down to close is smooth.
by:
Easy to install.
by:
We love this cover! I will most likely be ordering another one because unfortunately I got trapped in a terrible hail storm and the cover was damaged. No way any covered would have survived.

Thank you
Brooke M. profile picture
Etrailer Expert

Brooke M.

4/7/2025

I am so sorry to hear the hail did it in! I am glad that it was great before that, and we will be here if you decide to order with us again :)

by:
2018 Ford F-150
Everything was on time and good quality. Easy to install, but you need to open the lock before installing the rail. If the lock is in the lock or down position the rail won’t go on. Other than that it was easy and it looks great on the truck!
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See what our Experts say about this Retrax Tonneau Cover


Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Jason W
Updated by:
Jason W
Employee Erin H
Updated by:
Erin H
Employee Mark S
Updated by:
Mark S
Employee Ronnie R
Written by:
Ronnie R
Employee Evangeline M
Installed by:
Evangeline M
Employee Charles A
Video by:
Charles A

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