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Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 10

Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 10

Retail:$84.85
Our Price: $69.25
You Save: 18%
RV Leveling Blocks
Shipping Weight: 9 lbs
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Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig. Great Prices for the best rv leveling blocks from Ultra-Fab Products. Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 10 part number UF48-979051 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (232)
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Ultra-Fab Products RV Leveling Blocks

  • Stackable Blocks
  • 8-1/4L x 8-1/4W Inch
  • Blue
  • 10 Blocks
  • Ultra-Fab Products

Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig.


Features:

  • Stackable blocks provide extra lift to level your trailer or motor home
    • Position beneath jacks, stabilizers or trailer wheels
  • Interlocking design guarantees no shifting or collapsing once stacked
    • Stack straight up for extra height
    • Stagger blocks to create a ramp so you can easily drive up
  • Durable plastic construction
  • Storage case with integrated carrying handle included


Specs:

  • Quantity: 10 blocks
  • Individual block dimensions: 8-1/4" wide x 8-1/4" long x 7/8" tall
  • Weight capacity: 30,000 lbs
  • 3-Year warranty


Note: The manufacturer does not recommend stacking more than 5 blocks high



48-979051 UltraFab Ultra Leveling Blocks - 10 Pack

Item # UF48-979051





Customer Satisfaction Score:


Customer Reviews

Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 10 - UF48-979051

Average Customer Rating:  4.8 out of 5 stars   (232 Customer Reviews)

Interlocking blocks stack to different heights and can be positioned beneath jacks, stabilizers or RV wheels to add just enough lift to level your rig.

by:

This is the third set of these I have purchased. I carry lots of blocks to level a dually truck camper. Better than most other leveling blocks, but you can still break them in rocky soil or uneven areas.



by:

Great product fast delivery

Ron

4/2/2024

Good



by:

I have been using these leveling blocks for years. They set up easy,they are light and they take up very little space when stowed. I recently purchased new tires that were slightly wider on my motorhome. I needed the extra width for my rear dualies and the extra leveling blocks fixed the problem.



by:

No more random wood pieces for leveling !



by:

A little less weight than my usual wood blocks. Carry case is a good concept but I don’t think it will hold up very long.



by:

They look great. Appear to be very strong. Looking forward to using them for the first time soon!



by:

This is my second set of these



by:

Good price for good blocks

Joseph

4/23/2023

Very easy to use. Work great for leveling the camper



by:

These levelers are simple to use, very durable, and store quickly. What a difference using them with our 25' class C motorhome. Highly recommend. My order also arrived quickly & shipping method upgraded at no extra charge. Thanks!

Patti B.

10/29/2017

After a year this product still gets the job done. We are highly satisfied.



by:

These blocks worked very well. The high load rating works well for my heavy motor home.



by:

The ultra fab leveling blocks worked very well. They stack easily and store in the bag even easier.

Alan C.

9/24/2015

Very well and having no problems.



by:

Original request for review was upon delivery. I waited. I used the product . . . in all manner of conditions. Now that I've used and abused, it's ok to say: I am pleased. These are the real deal, delivered earlier than promised back when I got them, and doing a better (flawless) job than even I (an admitted grouch about quality) expected. They are solid, versatile, and one of those items you say to yourself "I did right getting those". Good, quality product.

Nancy K.

5/29/2014

Tim, Ive been reading about the colored levelers, and I read that Orange are no good, yellow is the best, but are you showing Blue and saying they are far superior, and will not break... we have 28 dual axel. 7000lbs.ksocks



by:

I finally got tired of using blocks of wood to level up my R.V., cheap yes but they take up a lot of room. So I ordered two sets of these blocks from e-trailer and glad I did. I've gotten great service from them before and they didn't let me down this time either. When I ordered them I wars told they would ship December 21st. Then I received another e-mail saying they were back ordered and would ship January the 4th. Still no problem, wasn't needing them right away. The next day I received a message that they had been shipped the day I was told they were back ordered. I recieve them on the 24th and now I can't wait to use them. Thanks e-trailer, I'm going to go clean out the wood pieces and store these right away.



by:

The leveling blocks arrived just in time for our first camping trip, the blocks work really well. The trailer is about 8,000 pounds loaded the blocks had no problem with the weight.
Also can't beat the price, quick shipping and the follow up from George at Etrailer was exceptional!



by:

Had three break (explode) while leveling our 5th wheel on a lot containing compacted sand in Florida. Never had this issue with orange Lynx Leveling Blocks.



by:

These blocks have saved us so many times, I can not tell you. From when we are told that the RV parking is "All Concrete Pad" just to arrive and find out that only 1/2 the pad is concrete (so the blocks make it so our rig is level). To parking in the rain and starting out level, to waking to our heads being smooshed against the headboard as our rig settled into the mud-Blocks to the rescue!

Great purchase. Buy two sets, you will NEED them!



by:

The blocks fit together neatly and securely, should function exactly as intended. They're surprisingly heavy, which bodes well for their strength for the job, though the tire loading on my small teardrop isn't much. They should last for years! Next outing starts tomorrow, we'll soon see.
etrailer was, as usual, fast and friendly.



by:

Easy to use. Durable. Excellent purchas e.



by:

LOVE LOVE LOVE these. They are so nice and compact. Having the case to keep them all in one spot is a huge plus. My husband said he likes we don't have to carry a bunch of wood around in the pickup truck. The camper backs up nicely onto them. We also use them under our stabilizing jacks.



by:

A must to carry for leveling, under your jack stand, under the leveling jacks. Rugged item!!! Helps to protect damage to asphalt as they prevent sinking in.



by:

We not only use them for tire leveling but trailer stabilizer bottom supports.

Instead of hauling heavy 6"x6" wood blocks, solid construction plastic blocks is cheaper. It's all about weight when towing a camper!



by:

These leveling blocks work well in function, but are not as durable as I expected. They need protection on any gravel surface to avoid damage. I've needed to add plywood pads under them.



by:

I have as of yet used my camper. I did put the mirrors on my truck and they look really nice as well as gives me a great view of the traffic. the leveling blocks look like they will work very well. No more planks for leveling and that great with me.



by:

I'm Very happy with my product I purchased,and I Highly recommend the Fab leveling Blocks and Scissor Jacks . Thank you for your service a speedy delivery. Best Regards



by:

Trailer leveling blocks worked fine, just as advertised. May get another set


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Show More Reviews

See what our Experts say about this Ultra-Fab Products RV Leveling Blocks

  • Dimensions of Ultra-Fab Leveling Blocks
    The Ultra-Fab Leveling Blocks individually measure 8-1/4" wide x 8-1/4" long each; they are available in different quantities: - Quantity of 4: Ultra-Fab Leveling Blocks # UF48-979050 - Quantity of 8: Ultra-Fab Leveling Blocks # UF48-979052 - Quantity of 10: Ultra-Fab Leveling Blocks # UF48-979051 I have added a link to a video review of these leveling blocks for you to take a look at.
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  • Difference Between Lippert Stabilizing Jacks
    The only difference between the two Lippert high-speed stabilizing jacks is the color of the switch kit, with one being white and the other being black. Otherwise, they are exactly the same, though neither will level your trailer, they are for stabilization only; the two part numbers are the following: - Black Switch: Lippert High-Speed Power Stabilizer Jack # LC298707 - White Switch: Lippert High-Speed Power Stabilizer Jack # LC369774 Since you mentioned leveling, the easiest way to...
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  • Trouble Shooting And Calibration Of Zero Point On Hydraulic Level Up Leveling System
    The Gear needs to go to the ground so it can in turn lower the front end. If the gear is not touching it will time out or if it runs out of stroke it will time out, to save the motor from burning out. If you press any button during the auto level process the system will stop the auto level process. When you are trying to auto level the system it will try to go through these steps. Front landing gear will retract, lowering the front of the unit below level, stopping, then lifting the front...
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  • Can 2 or More Andersen Camper Levelers be Used on the Same Side of a Triple Axle Trailer
    Because of the travel of the suspension on a trailer, using just one leveler, # AM3604, would not provide enough lift in most circumstances. It would be difficult to use more than one per side on a triple axle trailer so I recommend going with a different type of leveler. Take a look at the Ultra-Fab Levelers, # UF48-979051. These 10 levelers can be stacked as needed and the space between tires of multiple axle trailers should not be an issue. With a triple axle trailer though a 10-pack...
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  • Recommendations for Leveling a Toy Hauler on an Uneven Driveway
    Once installed from the pin to the bottom of the foot is going to be under 8 inches tall so that is probably not going to be enough lift for you. Instead you could use something like a scissor jack, # JSC-30-IND, that offers 30 inches of lift. We also have some handy levelers, # UF48-979051, that you can use under the jack for additional height. A similar product would also work well. Take a look at the stabilizers # UF48-979004. With these you get height adjustment from 11 to 17 inches...
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  • Can Bottle Jack be Used For Leveling Trailer
    No you definitely don't want to use a bottle jack to level a trailer. They aren't made for leveling or stabilizing as they don't have the design needed; they don't attach to a large enough portion of the frame. If you need more leveling, use leveling jacks to do so: - Ultra-Fab Ultra Scissor Jacks # UF48-979002 If you don't want to add more jacks then the best thing to do is use leveling blocks, Ultra-Fab Leveling Blocks for Trailers and RVs # UF48-979051.
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  • Stackable Leveling Blocks For 2017 Keystone Passport
    Yes, you can use leveling blocks to support your stabilizer jacks, I recommend the Ultra-Fab Leveling Blocks for Trailers and RVs - 8-1/4" Wide x 8-1/4" Long - Qty 10 # UF48-979051. Not knowing the weight rating of the A frame jack I can not say yes or no. You will have to find out the weight capacity and tolerance of the specific jack.
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  • How Flexible are the Ultra-Fab Leveling Blocks and What is the Weight Capacity
    The Ultra-Fab leveling blocks, # UF48-979051, have a 30,000 pound capacity. These blocks are rigid and could potentially flex some if torqued enough. A co-worker has blocks similar to these and he has not experienced any cracking, even in cold weather, but he says what will happen over time is the tops will start to get smooshed. Otherwise they will be a durable item.
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  • Comparing the Ultra-Fab and Stackers Leveling Blocks
    The Lynx Leveling Blocks you have will not work with the Ultra-Fab Leveling Blocks part # UF48-979051. The reason for this is that the surface pattern which is used to lock them together is different. You would need to either purchase more of the Lynx Leveling Blocks or a new set of Ultra-Fab Leveling Blocks. In order to minimize the amount of blocks needed to level your trailer you may also be interested in the Stackers Leveling Blocks part # A10-0918 which are 1-3/8" tall compared to...
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  • Leveling Ramp Recommendation for F-350 with Truck Bed Camper
    The FloTool RhinoRamps Max Vehicle Ramp Set # FT11912MI is not designed for use as a leveling jack. It is only designed as a jack to raise both sides of a vehicle up evenly. Basically the manufacturer doesn't want you using these on uneven ground as the ramp was never tested in this setup. Their fear is that the ramp could lose traction or the tire slip off the ramp etc. The part # UF48-979051 is a block setup that is designed for leveling which would be the best option we have.
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  • Leveler Recommendation for a Tandem Axle Cougar 5th Wheel Trailer
    The Andersen Rapid Jack, # AM3620, when used on tandem axle trailers is only meant to be used as a jack, not a leveler. For tandem axle trailers, I recommend Ultra-Fab levelers # UF48-979051. This kit comes with 10 levelers so you can raise the trailer in 1 inch increments. I have linked a video review of this kit for you.
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  • Recommendations for Leveling the Front of a 1994 Vectra Motorhome
    If you need 8 inches to allow your 1994 Vectra Motorhome to sit level the part # AM6320 would be the correct product. If you need a different amount of height you would instead want the part # UF48-979051 as it is adjustable. I attached a review video for the # UF48-979051 for you to check out.
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  • What Does the Out of Stroke Error On the Lippert Ground Control System Mean
    The out of stroke error you are seeing is shown when you have extended the jacks further then they are designed to reach. The solution to this problem would be to try and find a more level place to park the trailer but you can also use the Ultra-Fab Leveling Blocks part # UF48-979051 so that the jack legs do not have to extend as far. The out of stroke error could also be caused by a few other things but if all works as it should save for this then odds are you are just reaching the maximum...
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  • Manual Stabilizing Jacks For Class C Motorhome
    These manual scissors jacks are for stabilization and not for leveling, so if you want to level out your Class C Winnebago Vita motorhome then you will need leveling blocks, the Ultra-Fab Leveling Blocks for Trailers and RVs # UF48-979051. Then for stabilizing jacks, ground clearance should not be an issue, no, and what you will need depends on the distance from your frame to the ground. The Stromberg Carlson Scissor Jacks have a 5,000 lb capacity per jack and each has a retracted height...
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  • Is There A Maximum Distance That Motorhome Wheels Can Hang With Air Lift Air Springs Installed
    Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers # AL88240 require that the axles be supported at all times, otherwise the weight could rip the bellows from the brackets. If you used leveling jacks to lift the frame of the motorhome you would need to place a support under the wheels as well, like leveling blocks # UF48-979051. Air Lift has stated that they offer cradles that will attach the lower bracket to help support the springs, so you could also reach...
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  • Height of Ultra-Fab Leveling Blocks Part # UF48-979051
    Each leveling block is 1-3/8 inches tall, but 1/2 inch of that will nest into the block placed on top of it. Two blocks stacked atop one another would be 2-1/4 inches tall.
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    Image 1 for
  • Is pewag Utility Tote Bag - Large PW4 Large Enough to Carry Ultra Fab Leveling Blocks
    Yes, the pewag Utility Tote Bag # PW4 would be large enough to fit the Ultra-Fab Leveling Blocks for Trailers and RVs # UF48-979051.
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  • Troubleshooting Out of Stroke Error Code on Lippert Ground Control 3.0 of RV
    If you get the Out of Stroke error message on the Lippert Ground Control system, such as # LC358590, then that indicates that the jack has extended as far as it will go and cannot go any further. You might be able to solve this issue by raising the jack back up and placing some sort of leveler under it, such as # UF48-979051, so that the jack does not have as far to go. The other possible option is to move the coach or trailer to a different, more level location. To clear the error you...
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  • Recommended Scissor Stabilizer Jacks For A 2019 Grand Design Imagine 2250RK
    Scissor jacks like the Ultra-Fab Ultra Scissor Jacks # UF48-979002 you were looking at are designed more for stabilization and less for leveling the trailer because they aren't really designed to hold the weight of the trailer off the ground. Even though you won't be fully lifting the trailer I still recommend getting close to the GVWR of your trailer. The GVWR listed for your 2019 Grand Design Imagine 2250RK is 6,995lbs so with four scissor jacks you could switch to a lower rated option...
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  • Should Both Tires be Raised When Using Leveling Blocks?
    When using leveling blocks such as the Ultra-Fab # UF48-979051 you do not have to raise both tires on 1 side. If you are using the blocks on 1 tire on 1 side of your travel trailer and you are level then you can continue to do that without any type of problem.
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  • Out of Stroke Error Troubleshooting on Lippert Ground Control
    If you get the Out of Stroke error message on the Lippert Ground Control system, such as # LC358590, then that indicates that the jack has extended as far as it will go and cannot go any further. You might be able to solve this issue by raising the jack back up and placing some sort of leveler under it, such as # UF48-979051, so that the jack does not have as far to go. The other possible option is to move the coach or trailer to a different, more level location. To clear the error you...
    view full answer...
  • Are Trailer Scissor Jacks Made for Leveling or Stabilizing a Trailer or Both
    Scissor jacks on trailers can be used as levelers or stabilizers. They are just not meant to lift up the weight of the trailer so that would limit the amount of leveling they can do. I recommend also using leveling blocks # UF48-979051, or the ones you already have, so that they are doing most of the leveling and the scissor jacks can be used to keep the trailer stable. Scissor jacks aren't meant to support a load off of the ground indefinitely so a secondary leveling device is recommended...
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  • Can Scissor Jacks be Used to Level a 5th Wheel Trailer and Will it be Hard to Manually Crank Them
    Ultra-Fab Ultra Scissor Jacks # UF48-979002 are designed to stabilize and support a trailer. To do so they will push up on the trailer but they cannot lift the trailer up off the ground so keep that in mind. This is true for all scissor jacks. Considering that the jacks will be placed where the trailer is the heaviest it would be difficult to manually crank the jacks. But if you used drill attachment # UF48-979005 and an electric drill it would make it a lot easier and faster. Another...
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  • Availability of a Top Cap for the Ultra-Fab Leveling Blocks
    The Ultra-Fab leveling blocks # UF48-979051 are designed for leveling trailers and RV's and the reason they are quite rigid on top and extremely durable. I called our representative at Ultra-Fab and there isn't any type of top cap available. You can use an additional set to increase their height as needed since they are stackable.
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Andrew K
Installed by:
Andrew K
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Lindsey S
Written by:
Lindsey S
Employee Jacob T
Video by:
Jacob T
Employee Aidan B
Video by:
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Employee Adele M
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Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Halie H
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Halie H
Employee Matthew E
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Matthew E
Employee Eric H
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Employee Chris R
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Chris R

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