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

Item # MR43RR
Our Price: $186.30
You Save: $9.69
RV Cargo Carrier
Shipping Weight: 27 lbs
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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 or call 1-800-940-8924 for expert service.
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  • Reviews (72)
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MORryde RV Cargo Carrier - MR43RR

  • Cargo Bins
  • Chassis Mount
  • MORryde
  • 25-3/4 Inch Long

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.


  • Storage box mounts in the space left by your factory steps on your travel trailer or 5th wheel
    • Fits under your MORryde StepAbove or Quick Connect steps where the old steps used to be installed
    • Utilizes that empty space for extra storage
  • Drop-down door provides easy access to cargo space
    • Store your wheel chocks, power cords, step broom or brush, awning tools, and other accessories
  • Built-in lock with 2 included keys keeps your belongings safe and secure
  • Steel construction with powder coating resists rust and corrosion
  • Quick and easy installation with included mounting hardware


  • Dimensions: 10" deep x 10-1/2" tall
  • Overall width:
    • With brackets: 27-3/4"
    • Without brackets: 25-3/4"
  • Storage capacity: 1-1/2 cu ft
  • Weight capacity: 50 lbs
  • 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:

Customer Reviews

MORryde Locking RV Storage Box - 10" Deep x 25-3/4" Wide x 10" Tall - 1-1/2 cu ft - MR43RR

Average Customer Rating:  4.6 out of 5 stars   (71 Customer 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.


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!!!



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.


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.



Great. Storing my chock blocks.


Purchased the cargo carrier to fit where my oem stairs fit on my fifthwheel after I purchased aftermarket stairs that fold into the RV.Fit was excellent, very easy installation. Great product.....


Excellent product very fast delivery thank you Kelsey enjoyed doing business with you and your company morryde thanks again


Just purchased the MORryde steps and decided to fill the gap of the old fold-out steps with this storage box. Was pleasantly surprised too when I did it during a 15% discount offer that my sales agent made apparent to me.


Works well as storage for smaller items. I had problems with the lock getting stuck locked.



Box still works as intended. Took a significant hit from , I’m guessing, a rock and Still works as designed.


Excellent product that is an easy install. As has been said before it took longer to remove the old steps than it did to install the storage box. Thanks for the quick shipment!


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



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


Works great, fills the space well.
over fill because stuff blocks the latch and can make it difficult to open


Ordering was easy and very fast Deliver y.


This is the prefect storage spot for wheel chocks, wheel clamps, blocks ect. It is not the cleanest area so it has more suited as a “utility” area. We love it.


Installed easily; could have been bigger but fills the gap where the stock stairs were nicely.


Works great perfect fit


Best update you could do. Easy install.


Well worth it.


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


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.


Product was as expected and service was as always great.


This is a great replacement to the old steps. Thanks etrailer


Easy install and nice for extra storage. Good value for the price. The toolbox IS NOT WEATHER TIGHT. No rubber seals and has small openings in the corners. Great for storing wheel chalks or blocks.


Great storage box mri fit where my old stairs were


Storage box was an easy install,box seems well built.It was well packaged in
cardboard box lined with styofoam & plastic.Storage box came as advertised with
lock & keys.


Fits perfectly!


The box is Great and works good


My husband is installing in our old step box to put our wheel chocks in to fill in the hole. It looks nice

Show More Reviews

See what our Experts say about this MORryde RV Cargo Carrier

  • 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...
  • 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...
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  • 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 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...
  • 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...
  • 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 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...
  • 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
  • Recommended Replacement for a 2K Lippert Torsion Axle
    I did some digging around and I was able to find out that those are 2K axles, however unfortunately we don't carry torsion axles. With that being said, we do still have other options for you to look it if you're interested like the Trailer Idler Axle Beam with Easy Grease Spindles # e48GR. This is just a 2K axle beam that measures 60" from hub face to hub face, 48" from spring seat to spring seat, and has built in easy grease straight spindles. I wasn't able to find out the measurements...
    view full answer...
  • 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

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 Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H
Employee Michael B
Installed by:
Michael B
Employee Ryan G
Installed by:
Ryan G
Employee John S
Video by:
John S
Employee Konnor K
Updated by:
Konnor K
Employee Carrie F
Updated by:
Carrie F

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