1. RV Leveling Blocks
  2. Camco
  3. 8-1/2L x 8-1/2W Inch
  4. 10 Blocks
  5. Stackable Blocks
  6. Gray
FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10

FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10

Item # CAM44521
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FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10 10 Blocks CAM44521
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Streamline the leveling process with this set of interlocking, stackable blocks. Durable, UV-stabilized resin construction accommodates single and dual wheel trailers and can be used with a variety of other stabilizing equipment. Lowest Prices for the best rv leveling blocks from Camco. FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10 part number CAM44521 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Camco RV Leveling Blocks - CAM44521

  • Camco
  • 8-1/2L x 8-1/2W Inch
  • 10 Blocks
  • Stackable Blocks
  • Gray

Streamline the leveling process with this set of interlocking, stackable blocks. Durable, UV-stabilized resin construction accommodates single and dual wheel trailers and can be used with a variety of other stabilizing equipment.


  • Interlocking, stackable blocks sit under RV wheels for extra lift
    • Position beneath jacks, stabilizers, or trailer wheels
  • Interlocking design ensures the blocks will not shift once you drive onto them
  • Storage base equipped with convenient nylon handle
  • Durable polypropylene plastic resists immense weight
  • Made in the USA


  • Quantity: 10 leveling blocks
  • Dimensions: 8-1/2" long x 8-1/2" wide x 1-1/2" thick
  • Each block provides 1" of lift (not to exceed 4-1/2" total height)
  • 1-Year warranty

44521 Camco Fas Ten Motor Home Leveling Blocks - 2 x 2 - 8-1/2 Inches Long x 8-1/2 Inches Wide - Gray

Video of FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10

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

Video Transcript for Camco FasTen RV Leveling Blocks Review

Today we're going to take a look at the Camco fast 10 RV leveling blocks with carrying handle. These 8 1/2 by 8 1/2 inch leveling blocks come in a quantity of 10 and gray. The part number is CAM44521, and hive is yellow, part number is CAM44512. Now our fast-10 blocks, as we've said, are available in two different colors. This is going to be the gray color, a little less noticeable while you're around the campsite, and then for the ones you don't want to leave behind or have a habit of forgetting them, those hive yellow kind of stand out in that campsite and tell you what to look for. These are the 17 inch variety, these are for use with dual rear wheels, these are 8 1/2 inch by 8 1/2 inch variety, these are going to work out really well for the front wheels of our camper or even for our stabilization jacks or things like that. A couple of nice things that I really, really like about these leveling systems and a couple of problems that have kind of been solved with the new fast 10 set up.

Look here, you look, they're not going to fall apart and they're not going to wobble. That's all thanks to the built-in carrying handle. As you can see, we pop that up, gives this a great way to get them around, get them around to the wheels when we need them, instead of having a whole armload of blocks and trying to get them over there and dropping a few. That really solves that problem. All we have to do is unthread our handle, pop it out, we're going to have full use of our blocks, whichever ones we don't need we'll put our handle right back down through, and just tighten it down to get it secured in place.

Now that you can see the interlocking design, where they're going to slide right down on one another, almost like the little kid's blocks that we don't like to step on as we're walking around. They really give us a good hold, and these aren't going to be something that we have to worry about them sliding on us. Once we get the weight of our vehicle up on there, as opposed to a couple of wood blocks or something, we don't have to worry about that shifting or any changes. Now that we've kind of gone over what they're going to do, let's go up and see them in action. Now what we want to do is park our RV or camper on the level-est surface we can find in our campsite there, and then we'll determine exactly how much lift we need. Now each block is going to give us one inch of lift, and we can go all the way up to 4, giving us 4 and 1/2 inches with the interlocking tab that sticks up here on the top.

That's going to be as high as you want to go. You don't want to go above that. To use them, you just take out your T handle there. We're going to start stacking them up, interlocking them as we do. Now you can see, we're going to put the second row kind of midway.

That's going to tie in the first and the second block in that lower row together, so that we don't have to worry about that sliding and stuff we had talked about. Once we get the height set where we want it, we'll just secure the rest of our blocks here. It's nice that they're going to move together, so we don't have to worry about moving one, and then the other one's not in line or anything like that. We just line that right up in front of the tire, and we'll be able to pull right up and on. Here we can see the blocks with the load on. As you can see, no signs of stress or they don't sink down or anything. Each of these interlocking blocks are going to fill up the hole below the one on top of them, giving us pure direct contact right down to the ground. Another great thing, once we have the load on here, no shifting, no moving, no issues to deal with. Now with all the fun said and done and it's time to pack up and go home, we're just going to reverse the process. We're to back off of them, we'll take our handle out. Now these are all leveling blocks, even the black one that we've got on the bottom, but that's the one that's threaded. That is the one that you want to have on the bottom when you stack your blocks up for your threaded rod or T-handle to work properly. They stack nice and easily, put them all together there, a few turns of our T-handle, and that's really all there is to it. We can just tuck these away in our storage compartment, and we'll have them when we need them next time. The nice thing about them, they're not wobbling around. We don't have a bunch of extra pieces flying around. We can just tuck them right into the storage area. Pop down the handle, and they'll be there any time we need them. Another good use for our fast 10 blocks are going to be stabilizers or jacks on our camper. A lot of times in the campsite, we might have softer ground, and we don't want to put all that weight down on just the small foot pad. Now what we'll be able to do is bring our foot pad down, we want to line it up to where we can get it kind of right in the middle of our levelers there, and then instead of having just that small footprint that's actually going to be pushing down, we're going to have a much larger area to dissipate that weight out over a wider area, so we won't have that sinking effect, especially when people get in there, kind of moving side to side or back and forth, it can kind of work those down further and further. These blocks will give us a great solution for that, and still staying with a nice, compact, portable design. That's going to complete today's look at the camco fast 10 RV leveling blocks with carrying handle, part number CAM44521 in gray.

Customer Reviews

FasTen RV Leveling Blocks w/ Carrying Handle - 8-1/2" x 8-1/2" - Gray - 2x2 - Qty 10 - CAM44521

Average Customer Rating:  4.8 out of 5 stars   (117 Customer Reviews)

Streamline the leveling process with this set of interlocking, stackable blocks. Durable, UV-stabilized resin construction accommodates single and dual wheel trailers and can be used with a variety of other stabilizing equipment.

- CAM44521
by: 09/20/2020

Will buy again. 883825

- CAM44521
by: 08/29/2020


- CAM44521

good quality products, great service. dont know what more i could ask for 807037

- CAM44521

Love the built-in handles to move them around in their neat stack, whether it’s the full set of blocksor partial. Easy to hose clean too! 707366

- CAM44521

Everything is working great. Thank you! 694633

- CAM44521

I wanted to get all those loose boards out of my storage compartment. Bingo! Mission Accomplished. I really like the way the product stacks and is secured by the screw-in handle. 678332

- CAM44521

Does what it was intended to do. 652324

- CAM44521

These work excellent. Very easy to handle and transport. Very light weight yet strong and durable. I normally use them under my jacks to reduce travel. This also helps to greatly reduce any trailer sway since the jacks move a shorter distance. 628977

- CAM44521

They work great I use them on every trip. Just have to watch driving on them. They don’t do well with large gravel and a lot of weight. But perfect for landing gear and stabilizers. 600932

- CAM44521

Ability to store is great and the carry handle is very convienent. Realized I needed another set after ordering the first. Had the fronts stacked 4 high on our 13’ 6” Solitude during 40+ MPH winds on Superior, was a bit worried they were gonna slide off but they didn’t move. I liked the Grey color because they didn’t stand out at the camp site. 584693

Still working well. My only wish is that they were 10x10 with the size of our coach 13,000+ lbs and the terrain we are on at times. We use them in coordination with out 10x10 Big Foot pads.
Troy - 11/23/2019


- CAM44521

Works great! The stay-together-stacking is quite nice also. You have to be careful about the surface smoothness you put it on because extraneous rocks distort the plastic where its difficult to get them to stack cleanly when putting them away but I hammered a bit on them with my trusty rock pick and they fit back together. Once you're aware of this its easy to avoid in the future. Haven't had a problem since. 571072

- CAM44521

Arrived quickly. Seems to be quality p roduct. 555017

- CAM44521

been using leveling blocks for a year now and they have held up well. A couple of our campsites has small sharp stones on then where we park and the leveling blocks held up well , they lock together nicely. 549641

Still using leveling blocks, but mostly for under my stabilizers. I now use a leveling chock where I just back on until camper is level chock it and done.
Joseph - 08/07/2019


- CAM44521

Thanks for the fast shipping! 516198

- CAM44521

Love them under my scissor jacks but I don’t know if I trust them under the hitch jack. Smooth plastic might be slippery. 504740

- CAM44521

Thanks Lindy for keeping up on my order and very fast shipping. Since I can't beat your deals I will be back. 495981

- CAM44521

Product as stated on website Great ser vice 478081

- CAM44521

This product works well for leveling trailer on parking pads. Combined with a good level mounted on your trailer that will tell you how many to locate under each wheel, this is a great solution. Nice compact storage as well! 472253

- CAM44521

etrailer service was excellent as usual and the product was exactly as ordered. Used them several times over the summer and had no problems. 452988

- CAM44521

I like the way the blocks stack together and the handle keeps them from coming loose in transit. What I don't like is that when used in gravel, the rock deforms the grids enough that I can't stack the blocks anymore. Maybe needs to be made out of stronger plastic. 452288

- CAM44521

Great item. Much better than carrying blocks of wood or cement blocks around. 434727

- CAM44521

Been thinking about getting plastic blocks for a while. My last trip the wood boards I had been using had bugs on them and they got inside my trailer. With the plastic blocks I can wash them off before placing in the trailer. I actually will be buying one more set very soon. 432324

- CAM44521

These level get blocks work great. Not only for levelling under the tires, but also to use under for jack stabilizers and the tongue jack! And the easy storage capability is awesome. Very pleased with these......love the product. 414027

- CAM44521

They are working out great, thanks for checking in. 400346

- CAM44521

Great Quality, love the included handle and super quick shipping!.. Have purchased from etrailer before and will again! 389671

Show More Reviews

Ask the Experts about this Camco RV Leveling Blocks

  • Comparing Ultra Fab and Camco RV Leveling Blocks
    I would say that quality wise the Camco kit part # CAM44521 is the same as the Ultra Fab kit part # UF48-979052. Based on price alone I would go with the Camco if it were me. Unless you really like the color blue... You can also use them on your trailer's jack as well. I attached a review video for you to check out too.
    view full answer...
  • Do Camco FasTen Leveling RV Blocks Have Weight Capacity
    I confirmed with Camco that their FasTen RV Leveling Blocks # CAM44521 do not carry a maximum RV weight rating so they are compatible with virtually any RV or motorhome out there. This set is gray and the part # CAM44512 is yellow.
    view full answer...
  • Supporting the Sides of an Aspen Popup Camper After Lifting it for More Ground Clearance
    What I recommend is to use leveling blocks such as # CAM44521 to compensate for the increased height of the camper. This set of blocks has 10 blocks and each is 17 inches long and 8-1/2 inches wide. Each block is 1-1/2 inches thick. I have included a link to a video review of these blocks for you. We also have kits for raising the height of the trailer. You may be able to use an over/under conversion kit if: The trailer leaf spring stack is currently mounted under the axles The trailer...
    view full answer...
  • Can an RV Stay Parked on the Tire Grip Traction Plate # 288-07411
    The Tire Grip traction plate # 288-07411 was designed to be used at the time of getting stuck so you wouldn't want to keep the RV parked on it. I do have an option that you can stay parked on and can also help with leveling if need be. Take a look at the 10 pack of leveling blocks # CAM44521. Several of these on the ground will provide a solid platform and they can be stacked to help with leveling. I have included a link to a video review for you.
    view full answer...
  • Difference Between Gray and Yellow FasTen RV Leveling Blocks
    The FasTen RV Leveling Blocks come in both yellow, part # CAM44512, and gray, part # CAM44521. Other than the color they're the same product.
    view full answer...
  • Can Scissor Jacks be Used to Lift an RV 1 Foot Off the Ground
    Scissor jacks such as # JSC-30-IND are not meant to lift up vehicle or trailer so I do not recommend them for this application. What I recommend is to use leveling blocks such as # CAM44521 for a 10-pack. You can drive right up onto these blocks though it may be difficult to get it up to a foot tall without using a bunch of them stacked like a pyramid. Another option is to use a bottle jack such as # ALL640405 to lift the vehicle and then use the blocks or jack stands to hold the...
    view full answer...

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Info for this part was:

Expert Research:
Jameson C
Installed by:
Cole B
Updated by:
Sarah W
Written by:
Jacob W

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