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MORryde Locking RV Storage Box - 10" Deep x 25-3/4" Wide x 10" Tall - 1-1/2 cu ft
MORryde

MORryde Locking RV Storage Box - 10" Deep x 25-3/4" Wide x 10" Tall - 1-1/2 cu ft

Part Number: MR43RR
In Stock
$213.70
RV Cargo Carrier
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Utilize the empty space left by your old steps when you upgraded to the MORryde steps with this locking storage box. Store your wheel chocks, power cords, step broom, and other tools in the 1-1/2 cu ft space. Includes hardware, lock, and 2 keys. Great Prices for the best rv cargo carrier from MORryde. MORryde Locking RV Storage Box - 10" Deep x 25-3/4" Wide x 10" Tall - 1-1/2 cu ft part number MR43RR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (111)
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MORryde RV Cargo Carrier - MR43RR

Highlights

  • Utilizes empty space: Perfect fit for space left by old RV steps for extra storage.
  • Lockable storage capacity: 1.5 cu ft with built-in lock and 2 keys for security.
  • Robust steel construction: Durable with black powder-coat finish, resists rust.
  • Easy installation: Fits under MORryde steps, includes all necessary hardware.
  • Adjustable mounting: Brackets fit from 26-3/4" to 28" opening width.
  • Designed for convenience: Store wheel chocks, power cords, and essential tools.

Features to know about

Maximize Unused Space: Perfect Fit Storage Solution

If you've upgraded to MORryde steps, you might have an empty spot where your old steps were. The MORryde Locking RV Storage Box is the answer to transform that void into valuable storage space. With dimensions of 10" deep x 25-3/4" wide without the brackets, and 27-3/4" wide with brackets, it fits perfectly in the mount space left by your original step system, adding 1.5 cubic feet of storage for essentials like wheel chocks and power cords.

Security Meets Functionality: Secure Lock and Durable Construction

Protect your belongings with the built-in lock and included two keys, ensuring peace of mind wherever your travels take you. This storage box features a drop-down door for easy access and is constructed from steel with a black powder-coat finish, making it resistant to rust and corrosion. It's built to hold up to 50 lbs, offering durability that withstands the demands of the road.

Easy DIY Installation: User-Friendly Set-Up

Say goodbye to complicated installs. This storage box is designed for quick and easy installation, utilizing multiple slotted holes in the brackets to fit a range of bracket widths. Included mounting hardware ensures that you can easily set it up under your MORryde StepAbove or Quick Connect steps. Enjoy a straightforward DIY project that takes advantage of the space left by your old steps.

Convenience in Every Detail: Simple Access and Versatile Use

Accessing your stored items is a breeze with the box's drop-down door, designed to provide simple entry to your stored gear. Whether you're stowing away leveling blocks, awning tools, or other accessories, this storage solution keeps your essentials organized and ready for use, maximizing your RV's storage potential without the need for additional containers.

All-Weather Utility: Ideal for Outdoors

Although not weather-tight, this storage box is perfect for storing wheel chalks, blocks, and other essential utility items that don’t need a sealed environment. With its robust construction, it stands up to everyday use and environmental challenges, keeping your tools and equipment handy for all your travels and campsite setups.

Precision Design for Tailored Fit: Adjustable Brackets

Designed to accommodate a variety of RV models, the MORryde Locking RV Storage Box features adjustable brackets with slotted holes, allowing for a precise fit every time, even if dimensions vary slightly. This flexibility means that even if your bracket width is on the edge of standard sizing, this box can still accommodate it, making it a smart choice for a wide range of RV setups.

Specs

Dimensions

  • Dimensions: 10" deep x 10-1/2" tall
  • Overall width:
    • With brackets: 27-3/4"
    • Without brackets: 25-3/4"

Capacity

  • Storage capacity: 1-1/2 cu ft
  • Weight capacity: 50 lbs

Warranty

  • 1-Year limited warranty

SP54-099 MORryde Under Step Locking RV Storage Box - 1-1/2 cu ft

Installation Details MR43RR Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

4.6

111 reviews
Utilize the empty space left by your old steps when you upgraded to the MORryde steps with this locking storage box. Store your wheel chocks, power cords, step broom, and other tools in the 1-1/2 cu ft space. Includes hardware, lock, and 2 keys.

by:

Purchased the storage box after replacing the folding steps with solid 3 step series. This left a void where fold up steps were, which now holds leveling blocks. Product was easy to install using same mounting holes as old steps. Had to put a spacer between door and blocks, first time out blocks moved closer to door and was unable to unlock, a little flange around lock would resolve this from happening.

Jim S. profile picture

Jim S.

10/12/2025

Storage box was working fine, added a small spacer to keep items away from door lock. Sold trailer and purchased another, installed 2 boxes with locks.



by:

This box is great. It fits right under the door where the fold out steps were before we got our MORryde Steps!

Brooke M. profile picture
Etrailer Expert

Brooke M.

6/2/2025

Wow that is great! Super perfect fit and it's great it doesn't really interfere with the steps at all. :)



by:

The storage box is exactly as advertised but could and should be a little larger. The size really limits what fits in the box. Extra storage is always nice but for the size I would not purchase this unit again. I also had to install some weather stripping to tighten up the lock and stop the door from rattling so much.



by:

This is the ideal solution for the space left when you remove the factory steps. I store all of my sockets, ratchets, torque wrench, etc. for checking trailer lug nuts and setting up my weight distribution hitch. Perfect!



by:

Perfect fit Remove my old steps the storage box fit perfect

Nicholas profile picture

Nicholas

5/11/2025

Excellent product



by:

High quality product that took only 20 minutes to install. Easy to follow instructions, quality hardware and well thought out installation.

Victoria H. profile picture

Victoria H.

11/12/2024

Wow, what a quick install David! Thanks for the photos of it installed as well.



by:

Exactly as advertised. Easy installation, perfect fit.



by:

install great fit great to have some extra storage in my toy hauler



by:

I got both the steps and this box to fill the void. Hard part was removing old steps. These work great and look better and gives more ground clearance as we mostly do dock in remote areas. You won’t regret getting them!!!

Derek profile picture

Derek

5/12/2023

The steps are great. The storage box lock jammed on our first trip. Almost didn’t get our leveling kit out until I pulled hard on the door and bent the latch enough to open. If you get this item swap out for a quality lock. The one supplied is a piece of crap.



by:

It works as expected. I think they could have done a better job of the door sealing to the frame. I augmented the edge seal and it works great now. I wasn’t so concerned about the weatherproof part but more of an incessant rattle every time we went up the stairs. Now it’s weatherproof AND quiet!



by:

We received the item in good condition, I found it very easy to install, took me about 20 minutes. Looks great, it's going to come in very handy.
I find Etrailer a very good and reliable company to work with.
Steve and Ann



by:

Easy install, and great fitment.



by:

Worked great on our camper where stairs used to be.



by:

Good looking box. Just wish was waterpr oof



by:

carries my leveling equipment all in one place. love it.



by:

Easy to install but a bit light duty for the price...I purchased it for the convenience of an easy installation. Next time I'll build my own.



by:

Easy to install in the old foldout step area.



by:

Great addition to the trailer! Made the empty space have a purpose.



by:

Fit well, looks great. Instructions did not list correct wrench sizes



by:

This will be installed later next year (ie springtime.)
The convenience of it fitting in the space left over by removing OEM folding stairway is a simple and effective way of hiding the gap; left by removing old stairway and now going to add just that little more storage space. It locating at the rear of the trailer is a plus too.

Roland profile picture

Roland

12/24/2023

Great. Storing my chock blocks.



by:

easy to install and good quality



by:

Very easy to install, solid, looks great and will add additional storage.



by:

Solid product



by:

We had MORryde steps installed in our new travel trailer as my wife is always afraid of smashing her finger in the traditional steps. She loves the new steps, and they are easy for her to extend and retract. I didn't want to carry around the old steps but did not like the gaping hole under the door. The MORryde step storage box is the perfect solution. It is very easy to install and the tremendous number of mounting options allows you to place it exactly right for your travel trailer. I was able to put two sets (10 each) of leveling blocks and my chocks in the box and free up room in my front storage compartment. Best of all, the gaping hole is no longer. I would recommend this storage box to anyone who has the MORryde steps.



by:

Thanks for the fast shipping All the parts look to be there and should be east to install Thanks for everything
Scott

Scott profile picture

Scott

7/13/2023

continues to work as expected am pleased with this storage cabinet. Was easy to install. Thanks


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See what our Experts say about this MORryde RV Cargo Carrier

  • Is There a Storage Box to Fit Cavity From Old RV Steps?
    Good to hear from you again, Gary! Yes, the MORryde Locking RV Storage Box # MR43RR is what you're looking for. This enables you to utilize that cavity for storage space, and it fits 26-3/4" to 28" opening widths. Does this look like it will fit in place of your old steps?
    view full answer...
  • Looking to Upgrade My Trailer Suspension
    Hey, Jack! Thanks for your question. It sounds like you're look at the upgraded equalizer kits? Wanted to make sure I'm on the same page as you. Also, what requirements did you not meet for the Morryde kits? It is very possible that swapping out for something like the Morryde part # MR87ZR or the Dexter part # K71-652-00 would raise your trailer a bit. I've never seen them lower a trailer at all. Both Morryde and Dexter don't have an equalizer kit that's rated for 3.5k axles. However,...
    view full answer...
  • Correct Dimensions of MORryde Locking RV Storage Box
    The difference is between just the MORryde Locking RV Storage Box # MR43RR and when you add the brackets at their widest setting. Just the box measures 25-3/4" but when you add the mounting brackets is when you'll see that 27-3/4" width that you mentioned. I'm attaching a photo to demonstrate this as well as the video Michael made on the box.
    view full answer...
    Image 1 for
  • Lippert Solid Step for 24" Doorway
    Since your narrowest entry width is 24", and your entry height is between 22" to 28", the best fitting Lippert Solid Step is part # LC713662. If your measurements are different you can pick the part number from the table below. Once you have these awesome steps you can get rid of the old rattlers and install a MORryde # MR43RR locking storage box. This box is great for tools, or roadside emergency supplies, or even black water hoses and parts that you do not want mixed in with other storage!
    view full answer...
    Image 1 for
  • Lippert SolidSteps for 2021 Forest River Surveyor Legend 18RBLE
    To measure for fit of the Lippert SolidStep, measure the entry way from right to left at the narrowest point. Generally there will be a flat metal flange that extends out 1/2" all around. This is the flange that the door closes against and keeps the door from trying to swing inside. From that measurement, round up to the next even inch. So, your door (at the narrowest point) is 21-1/4" wide to the door flange, and rounded up we get 23". The narrowest width for solid steps is 24 inches....
    view full answer...
    Image 1 for
  • MORryde StepAbove Fold-Down Steps for 2018 Montana Fifth Wheel
    Since the distance from your threshold to the ground is 38", and the narrowest part of your door is 28-1/4" side-to-side, the MORryde steps that are a fit for you are the MORryde # MR28RR steps featuring 8" deep steps. Optionally you could also use the MORryde # MR85RR steps which are the same as the MR28RR's except they feature gas lift struts that allow you to lift of lower the steps with one finger! If these steps are replacing traditional fold in steps you should consider the MORryde...
    view full answer...
  • How Wide is the MORryde Locking RV Storage Box MR43RR w/out the Brackets?
    Hey Jim! We've had this box out recently and have taken some measurements. I can confirm that the outside length of the MORryde Locking RV Storage Box item # MR43RR is 25-3/4" without the brackets attached.
    view full answer...
  • Can MORryde Locking RV Storage Box # MR43RR Fit Bracket Width of 26-7/8 inches
    Yes, the MORryde Locking RV Storage Box # MR43RR will fit your bracket width. The brackets have multiple slotted holes that can be used which allows the width range that you mentioned.
    view full answer...
  • Do The OE Steps Need To Be Removed To Install Lippert SolidStep RV Steps # LC713662?
    You do not have to remove the factory folding steps to install the Lippert SolidStep RV Steps # LC713662. We do have the MORryde Locking RV Storage Box # MR43RR if you want to replace them with something you will be able to use. I find this is a great place to store wheel chocks, landing pads and levelers which you need before the steps are folded down and block the storage box.
    view full answer...
  • Fold Out Camper Steps for 24" Wide Door and 27"-36" Entry Height
    The Lippert # LC698799 is no longer available however the MORryde # MR98RR is a better choice for doors with thresholds 30" to 33" off the ground and doorway widths of 23-3/4" to 26-1/4". Depending on your measuerments the MORryde # MR26RR is good for thresholds 25" to 29" off the ground and doorway widths of 23-3/4" to 26-1/4". Either way these steps are large and ensure a safer entry to your trailer with out the disturbing trailer roll that standard steps cause. If you are removing...
    view full answer...
  • How to Tell if MORryde Locking RV Storage Box Will Open With Steps Deployed
    The MORryde Locking RV Storage Box # MR43RR sits close enough to the stairs that I don't think you'll have the ability to open up the door. If you already have the steps installed you can mock up the door to see if it will open with out any issues since part of the clearance will depend on what stairs you have and how tall they are. This door measures 27-3/4" Wide x 10" Tall so you can use these dimensions for your mock up. Attached are some videos for you to check out!
    view full answer...
  • MORryde StepAbove 3 Step RV Steps for 27-3/4" to 30-1/4" Wide Doorways
    Yes, we still have the MORryde StepAbove RV Steps # MR68RR for 27-3/4" to 30-1/4" wide doorways. We also have the Handrail # MR83AR and Storage Box # MR43RR that will work with these steps.
    view full answer...

Do you have a question about this RV Cargo Carrier?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Amanda M
Edited by:
Amanda M
Employee Jonathan Y
Video by:
Jonathan Y
Employee John S
Video by:
John S
Employee Halie H
Written by:
Halie H
Employee Michael B
Installed by:
Michael B
Employee Ryan G
Installed by:
Ryan G
Employee Kurt W
Installed by:
Kurt W
Employee Konnor K
Updated by:
Konnor K
Employee Carrie F
Updated by:
Carrie F

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