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SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs

SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs

Item # LC664640
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RV Cargo Carrier
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Shipping Weight: 55 lbs
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This 27-1/4" long x 11-5/16" wide storage box mounts to your RV's chassis underneath your SolidStep entry steps. Door flips down for easy access to your stored gear. Holds up to 100 lbs. Hardware, lock, and 2 keys included. Lowest Prices for the best rv cargo carrier from Lippert. SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs part number LC664640 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (10)
  • Q & A (7)
  • Videos (3)
  • Photos
  • Why etrailer?

Lippert RV Cargo Carrier - LC664640

  • Cargo Bins
  • Chassis Mount
  • 27-1/4 Inch Long
  • Lippert

This 27-1/4" long x 11-5/16" wide storage box mounts to your RV's chassis underneath your SolidStep entry steps. Door flips down for easy access to your stored gear. Holds up to 100 lbs. Hardware, lock, and 2 keys included.


  • Storage box mounts to your RV's chassis to provide secure storage
    • Fits under your SolidStep entry steps where your old steps used to be installed
  • Drop-down door provides easy access to cargo space
    • Lock and 2 keys included
  • Powder coated steel resists rust and corrosion
  • Quick and easy installation with included mounting hardware
  • Box dimensions: 27-1/4" long x 11-5/16" wide
  • Weight capacity: 100 lbs

664640 Lippert Components (LCI) Solid Step Locking RV Storage Box - Powder Coated Steel - 100-lb Capacity

Installation Details LC664640 Installation instructions

Video of SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs

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

Video Transcript for Lippert SolidStep Locking RV Storage Box Review and Installation

Jake: Hey guys, it's Jake here with etrailer. Today we're going to be taking a look at and I'm going to show you how to install this storage box by SolidStep. It's going to install where your factory steps from your RV used to be before you got your SolidStep. With this box you're going to be able to lock it up, so it's going to keep any of the contents on the inside safe from anybody else. With a simple push of a button, you can see it's going to be spring loaded latch, so that you can open it up and load any type of wheel chocks or if you have any other gear to help you get your landing gear in place, this will be a great location for it, because you'll know it'll always be in this compartment. And then to close it up, simply push it close and set the latch.The storage box is going to have a heavy steel construction with a nice black powder coat finish to be able to resist rust and corrosion.

And one thing I like is it's extremely easy to use. As long as it's unlocked, you push that button, the latch pops out and you can load anything in it. Now this box is going to have a hundred pound weight capacity, so you can see as much space as we have, you're going to be able to load it pretty well to the max before you hit that limit. On the inside of our door, you're going to see there is a weatherstripping. That's going to help to resist any water or dirt and debris from getting inside our box.The box dimensions are going to be 27-1/4" long and 11-5/16" wide.Here's a quick demonstration on how they're designed to work with your SolidSteps.

It is going to be a flush mount design, so it's going to sit back where your old steps used to be. So when you open up your SolidSteps, simply pull down your steps, set them in place, and it's not going to interfere and it's going to be hidden back behind your steps. Then to replace your steps, you just simply lift them back up into place, load up your box and you're ready to hit the road.Now that we've gone over some of those cool features, let's go ahead and show you how easy it is to get installed. To start our install, we're going to need to get our bracket in place. Now in order to install this toolbox in the side of your camper, you're going to have to remove your factory steps.

So if you don't have a set of SolidSteps or if you do and you just never took your factory steps out, you're going to need you to remove those. Then you're going to have to figure out via your specific set of steps, the opening may be different from ours here, but we went from the bottom of our I beam one inch up to make sure that our storage compartment is level. Now we're going to take our plate, line it up with our holes. We put some markings where our holes are so that all we have to do is just line the holes up. Now we'll take our self tapping screw that's included in your hardware and lag it to the frame.Now we'll do the same for the other six holes.

On the back of your box, you're going to have these two tabs which are going to hook into the bracket and hold on so that you can get your four screws in the back of your box. These are the two slots in which those tabs are gonna hook into. So now we can go ahead and set our box in place.Now since the box does have a significant weight to itself, it's a lot easier if you sit around in a little chair and lift it in place. And what you can do is you can push on this button opening your latch and let your door down. Now you're going to locate the four holes to insert your bolts. You'll see here our bolt holes are not lined up exactly. So we'll have to scoot our box over till they are. And we can take our included hardware with our locking washer and thread it on.With your four screws safely securing your box to the inside, you're ready to load it up with some tools or accessories, close it up, latch it, and hit the road.Well guys, with all that being said, that's going to do it for our look and installation of the SolidStep RV Locking Storage Box.

Customer Reviews

SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs - LC664640

Average Customer Rating:  4.7 out of 5 stars   (10 Customer Reviews)

This 27-1/4" long x 11-5/16" wide storage box mounts to your RV's chassis underneath your SolidStep entry steps. Door flips down for easy access to your stored gear. Holds up to 100 lbs. Hardware, lock, and 2 keys included.

- LC664640

This was a good purchase. Easy to install. Solid storage box for a good use of the space where the steps used to be.

- LC664640

etrailer shipping was fast. Really fas t.

- LC664640

Etrailer is was very prompt in getting it to me. The box is solid. I can see why its rated up to 100 lbs

- LC664640

After installing Solid Steps on our trailer, I decided to use the extra space for some tools. I installed this where the old steps were. Don't expect to receive any instructions with this product as there are none. I was able to figure out the installation pretty quickly by marking the center of the opening and the center of the mount for the box. On my rig, I had some bolts coming through the frame so I drilled an extra hole in the mount and used the bolt in the frame as part of what held the mount on. The mount is made so you can't install it too high as the box hangs on a set of ears when it's installed. You do have 4 screws inside the box to secure it to the mount so it's pretty solid. I elected to paint the box so it matches the apron of our rig and it looks better than flat black. The box is very useful and well made. I do think it's a little expensive for what you get though, hence only 4 stars.

- LC664640

Shipping and delivery were prompt as usual. Packaging was a little flimsy but arrived undamaged. Would have liked installation instructions - there were none.

- LC664640

No instructions in box. Difficult to install on my windjammer after grunt and grown fit ok very useful would buy another one if need be

- LC664640

Fast service.

- LC664640

- LC664640

- LC664640


Ask the Experts about this Lippert RV Cargo Carrier

  • Depth of Lippert SolidStep Locking RV Storage Box
    Good question; you are right that the SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs # LC664640 measures 27 inches long and 11-5/16 inches wide but it also has a large 13-3/4 inch depth, which is a significant amount. The box can carry up to 100 lbs and is lockable to help keep your property safe. I have added a link to the manual as well as a link to a video review and install I recommend checking out of the SolidStep Locking RV Storage Box # LC664640.
    view full answer...
  • Compatibility of SolidStep Locking Storage Box on Trailer With SolidStep Steps from Factory
    The SolidStep Locking RV Storage Box - Powder Coated Steel - 100 lbs # LC664640 can be used on your trailer even if you don't have the space where an old step would be located as long as you are willing to make the cut in your trailer siding if it isn't present. It will mount directly to the frame rail and give you the storage option in that location or really anywhere you want to mount it along the frame.
    view full answer...
  • Will Screen Door and Entry Door Close Normally with SolidSteps in Place?
    When the Lippert # LC791572 steps are properly installed with the threshold plate firmly against the outside threshold you should have no issues. The only thing we hear from customers is how much they love them! While you have your tools out you might as well take down those old stock rattle-trap steps that came stock on your trailer and install the Lippert # LC664640 locking steel box just made to fit in the spot where the steps were. Great spot for black water supplies, or roadside...
    view full answer...
  • Lippert Fold Down Solid Step for 2017 Coachman RL251
    You will need two measurements to pick the perfect fitting Lippert fold down solid steps. First the door way width which is the distance between the narrowest part of the door, usually where the flanges stick out. See the picture on the product page. Second you will need to measure the "Entry Height," which is the height from the threshold at the bottom of the door to the ground. With these two number in hand refer to the chart of the product page. I have attached a copy of it here. For...
    view full answer...
    Image 1 for
  • SolidStep Manual Fold-Down Steps Leg Adjustment Height
    The SolidStep Manual Fold-Down Steps for 25" to 28-7/8" RV Door Frames - Triple - Aluminum, # LC791572, has adjustable legs that adjust in 1" increments. When drawn fully in the feet can be pulled in approximately 1" from the bottom step. Please note the product review and installation videos that have been linked. A valuable addition to the SolidStep is the, Lippert Entry Assist Handrail for SolidStep, # LC799640. And the SolidStep Locking RV Storage Box - Powder Coated Steel -...
    view full answer...
  • Fold Down Steps For a 2013 Forset River Rockwood Signature Ultra Lite 8281WS
    From my research and experience installing steps on fifth wheel campers your 2013 Forest River Rockwood Signature Ultra Lite Fifth Wheel the door opening should be 30" to 36". If I am correct I recommend SolidStep Manual Fold-Down Steps for 30" to 36" Wide RV Door Frames - Quad - Aluminum Item # LC791575. Most fifth wheel campers sit a little higher. Having the fourth step ensures the bottom step is not too far from the ground. The steps have adjustable legs for un-level terrain so you...
    view full answer...
  • SolidStep Fold Out Steps For 2013 Coachman Chaparral 5th Wheel
    Since your door way width at the narrowest point is 30” and your entry height is between 35” to 44”, then the Lippert # LC791575 Solid Step is the best fit. With bigger steps you may want to consider a bigger hand rail support. The Stromberg Carlson # AC-530 Folding Handrail is the perfect solution. It is easy to install and is very strong. When you install the SolidStep it will just be natural to remove the old rattle-bang stock steps that came on your trailer. The Lippert #...
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Installed by:
Kathleen M
Employee Jacob H
Installed by:
Jacob H
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Shane H
Test Fit:
Shane H
Employee Kristina F
Written by:
Kristina F
Employee Halie H
Updated by:
Halie H
Employee Noah M
Updated by:
Noah M

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