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  1. Tonneau Cover
  2. Retrax
  3. Retractable - Powered
  4. Low Profile - Top of Bed Rails
  5. Aluminum
  6. Matte
THIS ITEM IS NOT A FIT FOR
2025 Lexus LC 500h
Retrax

PowertraxPRO MX Hard Tonneau Cover - Powered - Aluminum - Matte Black

Part Number: RT90312
In Stock
$2,899.99
Tonneau Cover
Not Confirmed to Fit

2025 Lexus LC 500h

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Product Images

In Use/Installed

Heavy-duty, powered cover opens and closes with the press of a button. Built-in brake lets you secure cover at any point along the rails, and a cargo light makes it easy to see inside the bed. 1" Thick aluminum slats provide the best security. Great Prices for the best tonneau cover from Retrax. PowertraxPRO MX Hard Tonneau Cover - Powered - Aluminum - Matte Black part number RT90312 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (7)
  • Q & A (0)
  • Videos (3)
  • Photos

Retrax Tonneau Cover - RT90312

Highlights

  • Custom Fit for Your Vehicle: Secures to your truck bed with model-specific clamps and hardware
  • Open Bed Hands-Free: Remote key fob lets you retract or close the cover with one button press.
  • Keep Gear Locked Down: 1" aluminum slats and built-in lock secure cargo when tailgate is locked.
  • Stay Dry Year-Round: Weather stripping, foam seals, and drain tubes channel water out.
  • See Inside Anytime: Built-in LED cargo light turns on/off from the key fob.
  • Carry Big Loads Fast: Cover locks at any point for hauling long gear or full bed access.
Made in USA

Features to know about

Hands-Free Access: Powered Retraction with Remote Key Fob

When your hands are full, the PowertraxPRO MX does the work for you. With the press of a button on the key fob, the cover glides along sealed ball-bearing rollers for smooth, even motion—no straps or snaps to deal with. The electromagnetic brake lets you stop and lock the cover at any point along the rails, so you can secure longer cargo while still keeping smaller gear covered. The wireless remote also controls the built-in cargo light, which automatically shuts off after 3–5 minutes to save your battery.

Pair of PowertraxPRO MX key fobs showing open and close buttons used to operate the powered retractable tonneau cover.

Truck with PowertraxPRO MX tonneau cover partially retracted, showing ladder extending past the tailgate to demonstrate adjustable locking positions for cargo.

Close-up of PowertraxPRO MX built-in LED cargo light on canister, illuminated to show interior truck bed lighting feature.

Secure Storage in Any Weather: Aluminum Slats and Full Perimeter Seals

This cover is built from 1" thick aluminum slats that resist dents, impacts, and harsh weather. When paired with a locked tailgate, it offers near-impenetrable protection for valuable tools or equipment. The matte black finish won’t fade or scratch easily, and the overlapping tailgate design, weather stripping, and foam seals block out rain, snow, and dust. Two drain tubes route any collected water out of the canister to keep the bed dry and clean.

Close-up view of PowertraxPRO MX bulkhead weather strip and foam seals that prevent water and dust entry into truck bed.

Close-up of PowertraxPRO MX drain tube attached to canister, demonstrating water management system that channels moisture out of truck bed.

Truck with tailgate open and PowertraxPRO MX cover closed, demonstrating independent operation for secure cargo access.

PowertraxPRO MX remote key fobs placed on top of closed cover, illustrating secure remote-only operation of powered tonneau.

Keeps Bed Space Open: Space-Saving Canister Design

When retracted, the cover rolls into a compact canister at the bulkhead. The spiral track system inside prevents the cover from rubbing against itself, reducing wear. The canister’s angled bottom saves room underneath, giving you more usable cargo space for long items. Even with the canister installed, the low-profile rails—just 1" above the bed—keep the truck’s lines clean and uncluttered.

Transparent view of PowertraxPRO MX canister showing spiral track system that prevents contact between cover slats during retraction.

PowertraxPRO MX small canister installed at truck bed front, showing angled bottom that saves cargo space beneath retracted cover.

PowertraxPRO MX tonneau cover fully extended and sitting flush with canister for a smooth, gap-free, aerodynamic appearance.

Truck with PowertraxPRO MX cover extended over 5th-wheel hitch, showing low-profile side rails that allow hitch clearance.

Built to Last: Heavy-Duty Construction for Everyday Use

The PowertraxPRO MX handles up to 500 lbs of evenly distributed weight or snow load without bending or sagging. The durable aluminum body stands up to impacts and years of exposure to the elements. Weather protection, scratch resistance, and a flush-fit design all come together to deliver a cover that looks good and performs reliably season after season.

Truck fitted with PowertraxPRO MX matte black aluminum tonneau cover, demonstrating durable, sleek, low-profile design.

Simple Setup: Clamp-On Rails and Direct Power Connection

Installation is straightforward. The canister and rails come preassembled—just position them, clamp the rails to the bed, and route the drain tubes through existing bed holes. The wiring harness connects directly to your vehicle’s battery for consistent power to the motorized canister and LED light. Once installed, the powered operation makes daily use effortless and dependable.

Two people installing PowertraxPRO MX canister and rails onto truck bed, demonstrating recommended two-person setup process.

Close-up of PowertraxPRO MX powered canister showing electrical connectors where wiring harness attaches for powered operation.

Specs

Weight and Capacity

  • Weight capacity: 500 lbs evenly distributed

Dimensions

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

Warranty

  • Limited lifetime warranty

90312 Retrax PowertraxPRO MX Hard Bed Cover - Electric - Retractable - Aluminum - Matte

Installation Details RT90312 Installation instructions

This Product Fits The Following Vehicles




Video of PowertraxPRO MX Hard Tonneau Cover - Powered - Aluminum - Matte Black
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Checking Out the PowertraxPRO MX Hard Tonneau Cover

What's up everybody It's AJ with etrailer.com. Today, we're going to be checking out the Retrax PowerMax hard tunnel cover. And now this is gonna be an automatic tunnel cover. Let me open up the back and show you. So we're gonna remote control so you can open it. With just the push of a button.

There's no straps to grab or you don't have to pull it back or push it back or anything. You can close it with that same remote and it stops anywhere you need it to. So, it's very easy to use, whether you need to open it or close it. It goes onto your Ram box. Let's take a look at it.

Because of the Ram box this one comes with hardware to specifically mount it to the track here. That lifts it up and puts it on top of the rails. That way you can still have access to the Ram boxes on the side. So that the rails are mounted up here on top. The cover's gonna be made out of a matte black aluminum.

So, it's pretty sturdy. So it can hold up. It's definitely better than some of the soft tunnel covers. Those usually have three bars in the middle and can be a problem if it rains or snow collects or even setting something down on there that can make that material bend down and cause issues down the line. This is gonna be a hard tunnel cover.

So you won't have that issue. And instead of being a tri-fold design where you have to fold it up in three spots. You don't have to manly lift anything here from the side of the truck. You can see, even with the Ram box here, that can be kind of hard to reach in there and do that over and over and then lean up against the glass. Well then you can't see out of the back. This one rolls up into the canister and the bed. So that means it's just low profile and it stays out the way. So as I put it away here, one I don't have to do anything with my hands cause it's got the remote. But it goes in that canister and then you have full bed access. For the most part. The canister does take up a little space down there. That's something else you gotta consider especially with loading with cargo. That it does take up a little bit of your bed there. So just remember that. But there is space at the bottom to still slide things in. So one thing we can do is prop it up on the tailgate. And one of the nice things about this cover versus some of the other ones, like I said, the tri-fold design you're kind of stuck by where that folds out. So you might not be able to pull it out halfway and leave it like that. With this one, you can go to close it, you can stop it wherever you need it to, so. Bring it all the way up to the ladder. Stop right there. So not only are we allowed to take the longer loads that stick out a little bit on our tailgate, but the rest of the bed is still covered. The grease ball bearings help the tunnel cover go along the track evenly and smoothly. The cover being all rolled up in the canister is nice, because with that track and the ball bearings in there it's always gonna come out evenly. So as it rolls out, you don't have to worry about it bunching up. Some of the manual ones that have the tracks though, you have to pull out, sometimes get jammed up here. When like a panel gets stuck somewhere or the ball bearing doesn't quite go. This one we've had no issues with it. Rolls out very smoothly every time. The O is for opening. This is gonna retract the cover. The C is to close. So that brings the cover to the back of the tailgate. And then this button here is gonna be the light function. The light that's built into the tunnel cover. So you can hit that on the remote and get some light. Whether it's in the evening of the job site or early in the morning, you can't quite see all the way up there in the back of your bed. Now you're gonna add some light to help you find that stuff. Looking beyond the light, you can see at the bottom there are drainage tubes there for the canister and that's gonna be helpful for if it rains and you've got your bed covered up or even some snow build up and you go to retract it. That water that goes into the canister will be able to drain out to the side of the vehicle. So you don't to worry about being stored in there and getting nasty. The cover can handle 500 pounds evenly distributed here on the cover. So that goes to say, if you go to throw like a cooler or something up there, it's gonna be able to handle it. It's not one of those soft covers where that would damage it. This is pretty sturdy, but you know, make sure you don't overdo it. Especially with the Ram boxes on the side. It can be harder to access things here in the middle. So if you need to set something here on the end to grab something outta the box or putting something in, you can definitely do that. Overall, I think it's a good cover for your Ram. Especially if you have the Ram boxes on the side. You already have that more narrow bed. You're gonna make it easiest possible to have it cover, but still have it function. I like that it can stop wherever you need it to. So you're not just restricted to the three quarter panels or just completely removing it. You don't have to remove it. Now it does take up a little of your bed. So that'd be one thing I'd be concerned about. Just the canister coming out to here. And then the cover's stopping here too. So it does eat up a little of your bed, but overall you can still fit things underneath or prop it up and still get the cover for most of it. So it actually does work out and I think it works out pretty good. Well, I think that does it. Thanks for hanging out. And I hope this helped..

Ratings & Reviews

3.9

7 reviews
Review sort icon
Heavy-duty, powered cover opens and closes with the press of a button. Built-in brake lets you secure cover at any point along the rails, and a cargo light makes it easy to see inside the bed. 1" Thick aluminum slats provide the best security.

by:



by:



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Not even close to water tight



by:

Very easy install. Love the finished product. Roughly 2 hours to install. I did install by myself and worked fine.



by:

Had one on my other truck
Good to have
one on this truck as well



by:

Stopped working, will move 3 inches and then gets stuck



by:

Product is so far so good. There is a screw holding the motor housing that seems tilted. Hopefully it won't be an issue down the road. Delivery was terrible as it was late and I needed this for work. I spoke to etrailer customer service which was unhelpful and not accommodating for additional accessories I was looking to purchase.


7
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See what our Experts say about this Retrax Tonneau Cover

  • Retrax Retractable Tonneau Covers For a 2003 Ford F-150 With 6-1/2 Bed
    Based on the brochure for a 2003 Ford F-150 it was only offered in a 5-1/2', 6-1/2' or 8' bed length. Do understand these are the interior bed dimensions so if you placing the tape measure on the side fenders or bed rails they will be longer than the bed interior so you most likely have the 6-1/2' interior bed size. Here is a list of the Retrax covers we have which fit the 6-1/2' bed on your F-150. PowertraxPRO XR Hard Tonneau Cover - Powered - Aluminum - Accessory T-Slots # RTT-90312 PowertraxPRO...
    view full answer...

Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Chris R
Video Edited:
Chris R
Employee Dustin K
Video by:
Dustin K
Employee Hayden R
Installed by:
Hayden 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

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