bing tracking image
  1. RV Skid Wheels
  2. Ultra-Fab Products
  3. Weld-On
  4. Frame Mount
  5. 4 Inch Diameter Wheel
Ultra-Fab Skid Wheels for Low-Profile RVs up to 30' Long - 4" Diameter - Qty 2

Ultra-Fab Skid Wheels for Low-Profile RVs up to 30' Long - 4" Diameter - Qty 2

Item # UF48-979011
lowest price pledge
Our Price: $123.86
You Save: $26.48
RV Skid Wheels
This item qualifies for Free Shipping
Shipping Weight: 16 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
Attach these sturdy steel wheels to the rear of your RV to help prevent tail dragging when backing up. Protect your undercarriage from unnecessary damage. Lowest Prices for the best rv skid wheels from Ultra-Fab Products. Ultra-Fab Skid Wheels for Low-Profile RVs up to 30' Long - 4" Diameter - Qty 2 part number UF48-979011 can be ordered online at or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (52)
  • Q & A (0)
  • Photos
  • Why etrailer?

Ultra-Fab Products RV Skid Wheels - UF48-979011

  • Weld-On
  • Frame Mount
  • 4 Inch Diameter Wheel
  • Ultra-Fab Products

Attach these sturdy steel wheels to the rear of your RV to help prevent tail dragging when backing up. Protect your undercarriage from unnecessary damage.


  • Unique casters attach to the frame of your RV to help prevent tail dragging and digging in while backing up
  • Sturdy steel construction and extra-durable roller bearings are long-lasting
  • 1/4" Thick urethane layers outer edge of each wheel
    • Provides anti-skid barrier
    • Ensures that wheel lasts even longer by avoiding metal degradation
  • Weld brackets to your RV then bolt skid wheels to the brackets using the included hardware.


  • Application: low-profile motorhomes up to 30' long
  • Wheel diameter: 4"
  • Quantity: 2 casters
  • 1-Year warranty

Note: Not recommended for use on diesel pusher motorhomes due to the extreme rear-end weight of the motorhome.

UF48-979011 Dimensions

48-979011 UltraFab Swivel Skid Wheels for Low-Profile RVs up to 30'

Installation Details UF48-979011 Installation instructions

Customer Reviews

Ultra-Fab Skid Wheels for Low-Profile RVs up to 30' Long - 4" Diameter - Qty 2 - UF48-979011

Average Customer Rating:  4.3 out of 5 stars   (52 Customer Reviews)

Attach these sturdy steel wheels to the rear of your RV to help prevent tail dragging when backing up. Protect your undercarriage from unnecessary damage.


These wheels are much better than ordinary casters from a hardware store. They are very heavy duty and perfect for a trailer. We have a Lance 1575 that is low to the ground, plus we have a steep driveway. The trailer's skid bars drug very badly while entering or exiting our driveway and these wheels solved the problem. Our trailer doesn't have the typical square bumper, which would have made mounting these wheels much easier, and its frame is pretty light weight. I ended up getting some 2 inch angle iron and "sandwiched" the trailer undercarriage to make a way to bolt on the wheels so that they are centered directly under the frame. That has worked fine. We can now move our trailer in and out very quietly.


My Ultra-Fab 4" travel trailer skid wheels arrived today. Packaging was intact and solidly wrapped. Etrailer is a great company for your rv supplies.

Doing what they are supposed to do. No more dragging. I go very slow in situations of a potential drag and watch wheels make cpntact and roll. Holding up well so far.
Brad - 11/01/2021


Excellent design and construction. Went together very easily, and exactly what I needed. Grease fittings are a plus on both the wheel and caster. Will make it very durable.


Well after a year they are still on. In rough shape though. Not really strong enough to support the weight of a camper


Product received yesterday and I must say that it is very beefy. Heavy Duty. I will be installing this in a couple days and look forward to being able to drive my Travel Trailer into my driveway without chewing up my Stabilizer Jacks. One suggestion for eTrailer is that they double box when shipping. My set came in the original product box. Because of the weight of the rollers the box had split open on one side. One of the mounting plates was sticking half way out of the box. All parts were accounted for.

So glad I purchased these a year ago.
LMTapia - 06/09/2017


These wheels worked perfectly to protect my sewer dump pipe from dragging for my lance trailer 1575 2015 model, the stock skid guards are worthless, I recommend replacing them with these wheels and brackets, all bracket holes match up with the lance trailer frame and is a snap to install less then 15min

After a year and using our trailer on 13 trips, the skid wheels have no damage and work very well saving our dump sewer pips. The wheels have two grease points wheel and swivel they fit perfectly on our lance 1575 trailer
Scotty - 07/23/2020


they keep the back of my camber trailer from dragging on my driveway that has a dip in the driveway. Thanks for a great product.

Not good, 1 broke when backing up driveway
Bruce - 11/04/2021


Saved the rear of my trailer many times.

Great saved the trailer many times
Rick C - 11/13/2021


Ultra-Fab is the only company I've found to produce skid wheels of the size and composition needed. I have a class B Van and a somewhat steep driveway The problem is that the metal castings for the wheels fail. Over the past several years I've gone through 3 of these wheels, with hub failure being the problem. If someone made a pressed steel hub with the 'Ultra-Fab tire' instead of a casting, the wheels would probably last longer, but so far, I've not found any. Solid steel skid wheels work just fine but tear up the street.


I added these to my 2018 42' Montana 5th Wheel camper and they have worked perfectly. I have 1 low spot that they come in contact with my drive way. I would recommend these if you have a light contact like me. I don't think these would hold up if it was a harder or heavier contact with the road. But for my purpose they are perfect.


Worked out better than I imagined. I could not get my 34 ft Keystone Sprinter in my driveway without scraping the bumper and destroying the back Jack's. Problem solved. There are even 2 campgrounds I could not go to due to steep entries now there is no problem.


Both wheels broke the third time taking the trailer out of our drive way. The metal parts, inner part, around the axels broke into several pieces.

The first two times they worked great and I was very happy.

We have purchased a second set but have not used them yet.


I went through two sets of these in a matter of a few weeks. I finally got a set a set of the 3" steel wheels which fit into the brackets for these wheels and they are still going strong


Broke the first time I pulled out of my driveway in my 20' enclosed trailer hauling 5 dirtbikes


Have a Winnabago 24J RV and the skid wheels come in handy on a lot of steep entrances, like gas stations. Works well when hauling bikes on my rear hitch. Gives the bikes more pavement clearance in the event of contact. Have had for over a year and still look and act like new.


Well, turns out I intended to write this review much earlier and thanks for the reminder.

Yes, this set of skid wheels work PERFECTLY!!! I could not be happier. We take our trailer to the mountains and it has come in quite handy on our very sloped driveway to the street---after all, it is in the mountains. Very happy with the purchase.


Products are always as advertised and the customer service is excellent.
These guys communicate well throughout the entire ordering process.
Been using them for 5 years.


They are a life saver for the rear end of a long (36') trailer. I didn't get a lot of life out of them. A young lady was to busy texting on her phone going the opposite direction and took the back end off the trailer. No more trailer.


Good heavy construction, despite this American company having their stuff made in CHINA. Not what I wanted.


Working perfectly. I have these attached to my rear frame on my trailer camper. Works great looks great!

Still satisfied with the product. Working as prescribed.
Nick Y - 04/13/2020


Very happy with the product. I have read the directions thoroughly and they were adequate for the product. Haven't dragged them on the ground yet but the quality appears to be good. I had an issue with damage during shipping- a zerk fitting broke off the swivel bearings on one caster and the zerk on the other caster is slightly deformed. A little more packing material would have prevented this. I'm picking up a couple at the store today to put in before I install.


The service an follow up for a potiential delay in shipping was excellant


One of the wheels was delivered with a broken grease fitting. I had a spare fitting and replaced it however it is disappointing that this product would be delivered with a problem.


This is our second order from etrailer. We highly recommend this business. We received our order quickly, and the products that we received are excellent quality.


Like the quality and the ruggedness of these. Unfortunately, I haven't installed them yet. I hope they hold up once installed.

Show More Reviews

See what our Experts say about this Ultra-Fab Products RV Skid Wheels

  • What are the Overall Dimensions of the Mounting Plate in Ultra-Fab Skid Wheels # UF48-979011
    I went out to the warehouse and pulled an Ultra-Fab Skid Wheels, # UF48-979011, to measure that plate for you. The length is just under 7 inches and the height or width is 4 inches. The plate is approximately 3/16 of an inch thick.
    view full answer...
  • What Size Installation Bolts are Included with the Ultra-Fab Skid Wheels for Low-Profile RVs
    I spoke to my contact at Ultra-Fab and he informed me that Ultra-Fab Skid Wheels # UF48-979011 that you referenced comes with a plate and installation hardware and there are two sizes of bolts that are included. The smaller bolts are 1-1/4 inches long with a 9/16 inch head and the larger bolts are 1-1/2 inches long with a 3/4 inch head. He said that typically when you install this you weld the plate to the vehicle frame and then use the included bolts to attach the caster to the plate.
    view full answer...
  • How Do # UF48-979011 Skid Wheels Attach to RV and Do They Reduce Ground Clearance
    The skid wheels would typically weld to the underside of the RV frame. Using skid wheels would be advantageous because it would help prevent the RV undercarriage from scraping against obstructions like speed bumps. Instead, the wheel would hit the obstruction and ride along it. So technically, the wheels would decrease ground clearance but it would not create a problem because the wheels would pass over the obstacle.
    view full answer...
  • What is the Bolt Hole Pattern on the Mounting Plate for Ultra-Fab 4 Inch Skid Wheels
    On the mounting plates included with the Ultra-Fab skid wheels # UF48-979011 the center to center distance between the two larger holes is 5-3/4 inches. I have included a picture that shows this and other measurements for you. It is the same picture that is in the grouping of images on the product page next to the main image.
    view full answer...
    Image 1 for
  • Overall Height of the 4 Inch and 6 Inch Ultra-Fab Class A Skid Wheels
    The distance from the top of the mounting plate to the bottom of the wheel on the Ultra-Fab 4 Inch Skid Wheels, # UF48-979011, is 5-3/4 inches and for the 6 Inch wheels, # UF48-979013, 7-3/4 inches. I have attached a photo for you showing these measurements.
    view full answer...
    Image 1 for
  • Can the Ultra-Fab Skid Wheels # UF48-979011 Be Bolted on With U-Bolts
    The recommended installation method for the Ultra-Fab Skid Wheels # UF48-979011 that you referenced is to weld the mounting bracket to the trailer frame and then bolt the wheel assembly to it. However, if you check out the install instructions link I attached there are instructions on how to use U-bolts to install this kit are included. The U-bolts would need to be 2-3/4 inches wide.
    view full answer...
  • Skid Wheel Recommendations for a 24 Enclosed Trailer
    I'd recommend the # UF48-979011 skid wheels from Ultra-Fab that you've already looked at, which is what we'd recommend for a trailer or RV 30 feet long or less. Ideally, you'd want to mount the wheels to something substantial as far rearward on the underside of the trailer as possible. You can see product description video of the skid wheels by clicking the provided link. I've also linked you to the installation instructions.
    view full answer...
  • Will Ultra-Fab Skid Wheels fit 2016 Heartland Sundance 278TS Trailer
    Yes, you can use the Ultra-Fab Skid Wheels for Low-Profile RV's # UF48-979011 on your 2016 Heartland Sundance 278TS. These wheels are designed to mount to the RV's frame to help preventing dragging and digging of the trailer. Ultra-Fab designates these skid wheels for travel trailers. The mounting brackets for the skid wheel # UF48-979011 will weld to the trailer frame and then the wheel will bolt to the bracket. These wheels have a 4 inch diameter and a 1/4 inch thick urethane layer...
    view full answer...
  • Can Skid Wheel Set for Up to 30 Foot RVs be Welded On
    Yes, you can weld the mounting plates from skid wheel set # UF48-979011 to the frame. The side to side measurement of the bolt holes on center is approximately 2-3/4 inches (69mm to be exact which is 2.71 inches). The space between the holes is approximately 2.33 inches.
    view full answer...
    Image 1 for
  • Recommended Location to Install Skid Wheels on RV with 5-Inch Square bumper
    Generally an RV bumper is designed to take lateral force but not the vertical force it would encounter from having skid wheels installed on it. The RV frame at the rear (near the bumper) is the best place to mount skid wheels. If there is a hitch on the RV that too can be used as a mounting point. The plate included in Ultra-Fab skid wheel kit # UF48-979011 is what the skid wheel itself attaches to after the plate is welded on, and you are correct that the bolt heads do sit on the top...
    view full answer...
  • Skid Wheel Recommendation for 18 Foot Jayco Trailer to Prevent Skidding on Driveway
    For your 18 foot trailer I really like the frame mount skid wheels that can swivel. For that the Ultra Fab kit part # UF48-979011 that you referenced would be your best option. I attached a picture that shows these attached to a trailer frame as well. These don't have weight capacities, but instead have trailer length recommendations. This kit is designed for up to 30 foot trailer so based on that this would be what you need.
    view full answer...
    Image 1 for
  • Does Ultra Fab Skid Wheel Kit Part # UF48-979011 Have Weight Capacity
    The Skid Wheels part # UF48-979011 don't have weight capacities, but instead have trailer length recommendations. This kit is designed for up to 30 foot trailer so based on that this would be what you need.
    view full answer...
  • Recommendation for Preventing Car Trailer From Dragging Up Steep Driveway
    Adding skid wheels to your open car trailer is indeed what I recommend to help prevent the trailer from dragging when going up a steep driveway. These are designed specifically for this very purpose and will work well. I recommend taking a look at the Ultra-Fab Skid Wheels for Low-Profile RVs # UF48-979011. You will simply weld the included brackets to your trailer frame and then bolt the skid wheels to the brackets using the hardware that is also included. These skid wheels feature a...
    view full answer...
  • Skid Wheel Recommendation for a 2017 Coachmen Apex 215RBK
    I did a little research on your 2017 Coachmen Apex trailer Model 215RBK and found that it is 25 feet, 4 inches long overall so skid wheels # UF48-979011 are a great option for you. These particular skid wheels are a weld-on application so installation should be performed by a professional welder. I would stay with the 4 inch diameter wheels in order to keep the reduction to ground clearance at a minimum. I have linked a video review of these skids wheels for you.
    view full answer...
  • Best Skid Wheel Recommendation for 30 Foot 5th Wheel Camper
    For your 30 foot 5th wheel I really like the frame mount skid wheels that can swivel. For that the Ultra Fab kit part # UF48-979011 would be your best option. I attached a picture that shows these attached to a trailer frame as well. These don't have weight capacities, but instead have trailer length recommendations. This kit is designed for up to 30 foot trailer so based on that this would be what you need.
    view full answer...
    Image 1 for
  • Skid Wheels for 24 Foot Box Trailer
    For your 24 foot box trailer I recommend using the Ultra-Fab Skid Wheels # UF48-979011. These wheels have brackets which you weld to your RV; you would then bolt the skid wheels to the brackets with the hardware that comes with the kit. These wheels are 4" in diameter and have 1/4" urethane layers on the outer edge. I've added a link to a video review of these wheels for you to check out as well.
    view full answer...
  • Mounting Hole Pattern of the Wheel Assembly in Skid Wheel Set # UF48-979011
    The holes on the wheel bracket itself are spaced 3-3/8 inches apart on center by 2-1/2 inches apart on center. You can use those dimensions to determine if they match up to the holes you have. I have also included a link to our skid wheel selection. You mind find something in there that will work better for your application.
    view full answer...
    Image 1 for
  • Replacement Ultra-Fab Skid Wheels To Replace Paktron 10-4218 Caster Skid Wheels
    The Ultra-Fab Skid Wheels # UF48-979011 will contain everything that you need to change over from the Paktron 10-4218 system that you currently have. This will have a similar mounting plate and caster wheels like your Paktron, the axle bolt is 1/2" to match what you have. Currently we do not carry the replacement wheels in this size.
    view full answer...
  • What Part Can I Use to Avoid Bottoming Out on My Travel Trailer?
    While we do not carry a specific V-drag weld-on bar that protects your trailer from bottoming out, we do have an option that serves the same purpose. From the specs I have on your 2010 Forest River Cherokee Grey Wolf travel trailer, it measures 29.25 feet long. For that length, I recommend using the Ultra-Fab Skid Wheels for Low-Profile RVs up to 30' Long - 4" Diameter # UF48-979011. These skid wheels come with weld-on brackets and are constructed for the length of your trailer to prevent...
    view full answer...
  • Are Swivel Skid Wheels or Jumbo Roller Wheels Better For Trailer When Backing Straight in Driveway
    This is a two fold answer according to my technical contact at Ultra-Fab. If you happen to be turning at the same time you are backing up then you will want to go with the caster type wheels # UF48-979011 that you referenced. I do want to mention that swivel casters are for motor homes up to 30 ft long. In you only hit ground when you are backing straight into your driveway then you will want the roller type, Ultra Fab # UF48-979023. Both wheels have advantages. The caster is good...
    view full answer...
  • Skid Wheels for a 36 Foot Long 5th Wheel Trailer
    Since your 5th wheel trailer is 36 feet long I recommend going with Ultra-Fab skid wheels # UF48-979013. These wheels are designed for RVs that are 34 feet and longer. You can bolt these wheels to the bottom of the trailer to the frame so you will not have to weld.
    view full answer...
  • Recommended Skid Wheels for 35-Foot Travel Trailer
    We do offer a range of skid wheels for travel trailers and all can be seen on the link at right. Given the substantial 35-foot length of your Greywolf travel trailer I do suggest a caster type skid wheel since it will be able to rotate and so disengage from the road surface rather than stay locked into one position as fixed skid wheels do. The set I suggest is the bolt-on 6-inch diameter Ultra-Fab Skid Wheels # UF48-979013 which are intended specifically for trailers longer than 34-feet.
    view full answer...
  • Recommendation of Skid Wheels to be Mounted on a 3 Inch Wide Surface
    I might have a solution for you. However, the Ultra Fab 4 Inch Caster Wheels, # UF48-979011, will not be a viable option for your trailer. The best option will be to use the Ultra Fab Steel Jumbo Rollers, # UF48-979023. These roller have a 3 inch long x 2-1/2 inch wide mounting bracket could easily be welded on to the 3 inch surface on your trailer. This roller also has a height of 3-1/2 inches tall. The base plate of the 4 inch wheel caster of # UF48-979011 measures 4-3/8 inches long...
    view full answer...
  • Recommended Ultra-Fab Skid Wheel on a 4 Inch by 4 Inch Bumper
    I would instead recommend the Ultra-Fab # UF48-979011 skid wheel for your 4 inch by 4 inch bumper. The plate would need to be welded to the frame and then the included mounting hardware be used to secure the skid wheel. The Ultra-Fab Skid Wheels # UF48-979015 mounting hardware would be at the 4 inch distance and unsuitable for your bumper. We do not have a skid wheel that will accommodate the size of your bumper without having to drill through your frame. The # UF48-979015 skid wheel...
    view full answer...

< Previous

  • Why

    At we guarantee:
  • Highest quality rv skid wheels for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate rv skid wheel information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Written by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Rachael H
Updated by:
Rachael H
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Halie H
Updated by:
Halie H
Employee Noah M
Updated by:
Noah M
Employee Cole B
Installed by:
Cole B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.