bing tracking image
  1. Camper Jacks
  2. Ultra-Fab Products
  3. Leveling Jacks
  4. Stabilizer Jacks
  5. Fifth Wheel Camper
  6. Travel Trailer
Ultra-Fab Power Twin II Electric Stabilizer for Trailers and RVs - 22" Lift - 6,000 lbs

Ultra-Fab Power Twin II Electric Stabilizer for Trailers and RVs - 22" Lift - 6,000 lbs

Item # UF39-941707
Our Price: $1,139.05
Camper Jacks
This item qualifies for Free Shipping
Shipping Weight: 111 lbs
Add to cart
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
It's never been easier to raise, level and stabilize your travel or 5th-wheel trailer. This electric stabilizer spans the width of your rig for maximum support and has dual, 12V motors that function independently for quick, simple leveling. 1-800-940-8924 to order Ultra-Fab Products camper jacks part number UF39-941707 or order online at Free expert support on all Ultra-Fab Products products. Great prices and Fastest Shipping for Ultra-Fab Power Twin II Electric Stabilizer for Trailers and RVs - 22" Lift - 6,000 lbs. Camper Jacks reviews from real customers.
  • All Info
  • Reviews (86)
  • Q & A (0)
  • Photos

Ultra-Fab Products Camper Jacks - UF39-941707

  • Leveling Jacks
  • Stabilizer Jacks
  • Fifth Wheel Camper
  • Travel Trailer
  • Electric Jack
  • 5001 - 6000 lbs
  • Ultra-Fab Products
  • 1 Jack
  • 22 Inch Lift
  • Bolt-On
  • Steel

It's never been easier to raise, level and stabilize your travel or 5th-wheel trailer. This electric stabilizer spans the width of your rig for maximum support and has dual, 12V motors that function independently for quick, simple leveling.


  • Cross-frame-mount jack stops front-to-back and side-to-side motion of travel or 5th-wheel trailer
    • Provides support across the width of your motor home or trailer
    • Stabilizes with wide side support brackets
    • For use on rear frame of pulled travel trailer
      • Not recommended for use on front of motorized vehicle
  • Dual, 12V motors operate independently of one another for simple, effective leveling
  • Connecting bracket holds sides of stabilizer together and provides additional support
    • Adjusts to fit the width of your trailer or RV
  • Extra-large footplates help to minimize sinking and tilting
  • Switches and emergency hand crank included
    • Switch harness has 10-gauge wires
  • Sturdy steel construction


  • Application: trailers and RVs with frames from 42" to 77" wide
    • Requires 24" of space on the frame of your trailer or RV
  • Lift: 22"
  • Weight capacity: 6,000 lbs
  • 3-Year warranty

Dimension of mounting bracket

39-941707 UltraFab PT II Electric Stabilizer - 22"

Installation Details UF39-941707 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Ultra-Fab Power Twin II Electric Stabilizer for Trailers and RVs - 22" Lift - 6,000 lbs - UF39-941707

Average Customer Rating:  4.5 out of 5 stars   (86 Customer Reviews)

It's never been easier to raise, level and stabilize your travel or 5th-wheel trailer. This electric stabilizer spans the width of your rig for maximum support and has dual, 12V motors that function independently for quick, simple leveling.


These jacks are quality built and held up for a 3 month trip to Alaska. I choose to weld the two halves together to minimize the offset. The heavy material made it easy and very sturdy. The system is powerful enough to lift rear of our RV unit partially off the ground but you need to be careful to support the axles so you don't twist the frame on light trailers.


I love these stabilizers. I wish this size was sold without the motors. One of the motors started operating on its own so I took the motors off and manually set them. They will stop a lot of movement when walking around in your camper. I highly recommend them.


Very pleased. Not that hard to install. These replace the weak stabilizers that came with the trailer. You'll need a jack and an electrical kit to complete the install.



Still working just fine, Ive suggested it to anyone who askes about it.


I ordered 2 of these units. I give UPS 1 star because they lost an entire unit so I called etrailer and I give them 5 stars for immediately shipping a third unit. Then the first unit arrived from UPS and they lost the motors and hardware kit. I called etrailer and they are shipping more motors and the hardware kit. Hoping UPS doesn’t lose the parts for the replacements! The photo shows all I received so far for two full kits.


Installed on a 2018 E350 Ford Minnie Winnie. The package arrived really beat up but only a single cover was damaged. It was replaced quickly. Nothing was missing.

I had to shim it down from the frame about 1.5 inches using a bar of 1.5"x3"x 24" inch aluminum stock on each side. Then it would clear the fuel tank and the gray water.

Switches are installed in our garage under the bed. Wiring came from power panel which is fairly close to the switches so it all went fairly well. Wire nuts are not recommended so I had to hunt around to find connectors that would work.

I have not used it for camping so do not how well it will work to stabilize the vehicle. We do a lot of boon docking so will have to have some good blocking to level and stabilize. It feels a little better sitting on the street. I do wish there was a lockout for them being raised before moving the vehicle outside of PARK?



After a year of use, they make a huge difference when parked overnight.


I got the jack for three reasons. My original jack was intermittent, it was bent and it did not level the trailer because it had only one motor. The new jack works great and it can level the trailer because it has two motors and the power required. It was not the easiest to install because of the increased size and it will not level the trailer if it is off more that 2 inches or so side to side. In spite of these drawbacks and the fact it added weight to the rear of the trailer I am very happy with the new jack.



Good. Only issue I have is it is slower than my old jack


Your going to love this product. I was able to fit on to a 1987 Avion travel trailer I renovated for my sister (spectacular renovation). It made the camper rock solid. You can't feel anybody walking around, no high wind movement. It felt like we set it on a concrete foundation. It is a well designed product I will use in the future if I renovate another classic beauty, even my own every day travel trailer.

Great product.



Excellent product


Scary at first, but following directions, it bolted right onto the frame, used a floor jack to hold it in place while attaching. Wiring was uncomplicated, except for figuring out where to route the wires. works fine, I am a happy camper!

Glenn F.


still works great.


I was very satisfied with the excellent service I received. Rose was very helpful. Box was a little tattered but all parts were intact. I installed stabilizers and they work as expected .Very easy to install as I did them myself



They are working great just as u expected very good product. Would recommend to anyone. Thanks Again to Rose for her help


i find these easy to operate. installation took a little time as i had to works underneath the camper. i have discovered, the middle of the jacks flex when leveling. i have some heavy angle iron, i am going to reinforce them. before i do that operation, i am going to add more bolts, that may be the simple solution.

overall, excellent product.


Installation was easy, need a helper just to make it safer. CSR people are great very helpful!! Works as promoted and I have recommended this product to other campers.

James F.


Well after 1 year of use the Jacks are still doing very well we have gone on at least a dozen trips that they have been utilized. I am very glad to have purchase them, the installation was very easy great videos!! Best Regards P.S I have recommended to other campers and have even assisted on installing them.


On my 5 whl the landing gears froze up and would not turn either way. I ordered LC179013 and installed myself. That was s good job for an old 70Yrs fat man to do..
I got them installed and wired up and they work like a champ. That has been over a year ago and have been used alot.


I purchased 4 sets of these for 2 trailers. One motor intermittently will not run unless I remove the cover and turn it by hand. It occurred immediately after installation. Should have returned it.


The product itself is a good product but the packaging for shipment is very bad. I received mine and the box was badly torn apart and tapped back together. I was missing multiple pieces and had to wait until the replacement pieces arrived. Customer service was very helpful with resolving this problem within minutes.


Exact replacement of what was on the Carrilite 5'er with both products, the levelers and the front landing gear.
Fast efficient service as usual!


The product does what we needed it to d o.



Finally got around to installing my PT II Stabilizers 30" front and rear of our 26' Surveyor. Pre - assembled them to make sure they went together ok. Luckily I had two sources for power front & rear which made wiring easy, I used a Buss block to make all positive connections, grounds straight to frame, soldered all connections and heat srinked to seal. Using the 3/8" self tappers was fun.Well got it all together and all works well makes trailer very stable, don't have to worry about scissor jacks collapsing anymore.


It looks like a great product am anxious to install them.
I have a symbol of them in my garage and I have one with a really crooked foot. The bolt hole on the retracting arm was drilled in the wrong place so it is totally crooked, not a deal breaker though. I’m sure the are more than Adequate


I finished the assembly and install of the power twin II stabilizer and have included pictures of the install. This is a good quality unit and I am very happy with how it works.



Would have been nice to know that it didn't fit my Grand Design Imagine 22MLE without some "frame modifications", and over $xxxx in installation costs.


Electric motors are very slow, seems like it takes forever to drop each foot.

BUT----------They do work.


After installation the stability or my toy hauler was increased X3. The installation was relatively easy and all that was needed was common tools and a floor jack. Wiring was covered by simple easy to follow instruction. Some shrink wrap and a solder gun make permanent water resistant connections which I recommend.


If you are looking for "stabilizers" that are strong enough to handle heavy trailers this is the unit for you. A little inconvenient because of the independent screws but they will lift the weight indicated which is why the stabilizers are in quotations.


Little intimidating at first, just took my time and it went together without any major problem. The problem that I had was dealt with quickly. It's solid and well built. Print on the instructions was a little small for my eyes. Having the instructions on line was a great help.


The Jacks are considerably more durable well built compared to the Lippert models. The lifting power is real and once on the ground the prevent movement of the RV by orders of magnitude over the other style jacks. I only have one in the center of a long trailer and it has stopped the bouncing and side to side swaying of the trailer. Just stepping onto the stairs to get in its rock solid. Also when all the legs are deployed the doors close way better than they ever had with just the Lippert jacks on the front and back. Definitely recommend to anyone thinking about a better jack than what's provided oem.

Show More Reviews

See what our Experts say about this Ultra-Fab Products Camper Jacks

  • Would the Ultra-Fab Products Trailer Jack # UF39-941707 fit a Open Range 319fls Lite
    You will need to measure the frame of your Open Range 319fls Lite, if the distance between the frame members is between 42 and 77 inches the Ultra-Fab Products Trailer Jack # UF39-941707 that you referenced would work for you.
    view full answer...
  • Rear Electric Stabilizer Jacks for a 12,000 Pound 5th Wheel Trailer
    Ultra-Fab has a couple of options that could work for you. They are versatile and each is rated for 6,000 pounds total. This is important because stabilizers are not meant to lift weight, just support and level the trailer. It is possible that the weight where you place the jacks will exceed 6,000 pounds so you have to be careful of where you place them. Behind the rear most axle, as far back as you can go, would be ideal. For a model with 22 inches of lift use # UF39-941707 and for a...
    view full answer...
  • How to Install the Ultra-Fab Power Twin II Electric Stabilizer on the Frame
    The measurement you will need is from the outside of the frame. The Ultra-Fab Power Twin II Stabilizers # UF39-941707 can be adjusted between 48-77 inches wide. The mounting brackets will sit under the frame with the outside of the angled metal bracket resting on the outer edge of the frame.
    view full answer...
  • Would Ultra Fab Stabilizer Jacks part # UF39-94170 Fit Mercedes Sprinter 3500
    Most likely yes but you will need to take a few measurements. The Ultra Fab Stabilizer Jacks part # UF39-941707 that you referenced are designed to fit trailer frames that are 42 and 77 inches apart and require 24 inches of open space on the frame of the trailer. If your RV works with those requirements this stabilizer setup would fit and work well.
    view full answer...
  • Can Forest River R-Pod 180 Travel Trailer Use Electric Stabilizer Jacks
    Smaller and lighter camper trailers like your R-Pod 180 typically do not have electric stabilizer jacks but instead use manual scissor type jacks. The main reasons are ground clearance, weight and power consumption. The manual scissor jacks typically need less ground clearance than electric ones and they add much less weight to your towing system. They also do not deplete precious battery power. Ram 2500-lb manual jack # TJSC-24, for example, has a retracted height of only 5-inches and...
    view full answer...
  • How to Determine if Electric Stabilizer Jack Will Work on Motorhome
    We do have a potential option for you, but the Lippert Components High-Speed Power Stabilizer Jack # LC298707 is mostly for travel trailers and requires a very specific mounting hole spacing on the frame of 68-11/16" from center-hole to center-hole. We don't have any way of knowing if your 1999 Fleetwood Tioga has that spacing but it is highly unlikely. An option with a much better chance of working is the Ultra-Fab Power Twin II Electric Stabilizer. These can be used on motorhomes and...
    view full answer...
  • 2008 Fleetwood Bounder Replacement Leveling System
    Your 2008 Fleetwood Bounder has a power gear electric leveling system. That unfortunately was not a great system and was discontinued. I don't have any replacement parts for that system but it sounds like the controller/brain of the system is malfunctioning. You have a couple of options for replacement. You can use the Ultra-Fab Power Twin II Electric Stabilizer for Trailers and RVs - 22" Lift - 6,000 lbs # UF39-941707 you asked from to allow you side to side leveling. You will likely...
    view full answer...
  • Dimensions of Motor and Gear Box of Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707
    I attached a picture that shows the dimensions of just the motor and gearbox of the Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707 that you referenced. This comes with a manual override crank in the event of an issue with powering the jacks but there is also a manual version of setup as part # UF39-941704.
    view full answer...
    Image 1 for
  • Stabilizer Jack that Can Fit RV Frame Width of 51 inches
    For a frame width of 51 inches you'd want the Ultra Fab stabilizer jacks part # UF39-941707 which fits frame width range of 42-77 inches. This also has a dual motor setup that operates independently which allows you to level and stabilize from side to side.
    view full answer...
  • Will Ultra-Fab Power Twin II Stabilizer Fit 2015 Thor Siesta Class C Motorhome
    Ultra Fab has told us that you can use Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707 at the rear of motorhomes like your 2015 Thor Siesta Class C so this would work for you as long as your frame rails are between 42 and 77 inches apart. I attached a review video for this for you to check out as well.
    view full answer...
  • How Does the Ultra-Fab Frame-Mount Stabilizer Jack Install on a Trailer
    Ultra-Fab Stabilizer Jack # UF39-941707 will bolt onto a trailer using the bolt holes that are present on the mounting flanges of this jack as well as with the included nuts and bolts. You will most likely have to drill holes in the frame of your trailer so that you can install this jack. Check out the picture I attached that shows the mounting flange up close.
    view full answer...
    Image 1 for
  • Will Ultra Fab Stabilizer Jacks UFB39-941707 Fit on a Chapparral 29RLS 5th Wheel Trailer
    If the plate on the trailer frame is only for the mounting of the current stabilizer jacks you certainly could remove it to install the Ultra-Fab Jacks part # UF39-941707. If it's part of the bracing of the chassis I would not recommend you have it removed. If you had to install the jacks slightly forward so that the 24 inch wide mounting bracket would fit that wouldn't be a problem either.
    view full answer...
  • Willl Lippert High-Speed Power Stabilizer Jack Fit 2018 Airstream Sport
    The mounting holes on the Lippert High-Speed Power Stabilizer Jack # LC298707 are not going to line up with the ones from your existing stabilizer jacks. You should expect to drill new holes when installing. Also, I recommend leaving your current jacks in place if possible so you have the option to use them for additional stability. You can see this in our installation video below. The Power Stabilizer Jack holes are 68-11/16" across from center-hole to center-hole so you will need to...
    view full answer...
  • Stabilizer Jack Option for a 2008 Winnebago Class C
    The stabilizer jacks # UF39-941707 is designed for frames that are 42 to 77 inches wide. Width is measured from the outside of one frame rail to the outside of the other. Most likely the width of your trailer frame falls in the range but you still would want to check. These have a 6,000 lb capacity but you should note that these are not rated for lifting the RV off the ground so the capacity is a stabilizing capacity and not a carrying capacity. Because of that it would work well on your...
    view full answer...
  • Replacement Motor/Gearbox for Stabilizer Jack on 2015 Jayco White Hawk Travel Trailer
    For your 2015 Jayco White Hawk travel trailer that has a powered stabilizer we offer complete new powered stabilizer assemblies as well as replacement gear motors, both displayed on the linked pages. Motor part # BD1046130-00 fits Bulldog brand products # BD1824200100 and BD1824210100. Part # UF39-750009 fit Ultra-Fab Power Twin II Electric Stabilizers # UF39-941705 and # UF39-941707. If you have another brand please include a photo as well as all part number information on it.
    view full answer...
  • Will Lippert Electric Stabilizer LC298707 Fit a Frame Width of 43 Inches
    I do have an option that will work with your 43 inch frame spacing but Lippert power stabilizer # LC298707 has a fixed hole spacing of 68-11/16 inches on center so it will not work. The Ultra-Fab Power Twin # UF39-941707 will fit frame widths of 42 to 77 inches. This model has 22 inches of lift. I have included a link to a video review of this set for you.
    view full answer...
  • How to Remove Stabilizer Jacks From a Travel Trailer
    There are only 2 ways to install a jack on a trailer; by bolting it on or by welding it on. A simple bolt-on installation could very well be removed at home but you will need to make sure that whatever jack you decide to replace it with is installed correctly for safety. If it is welded on you will need to find a qualified welder to remove the jacks. If you have scissor style stabilizer jacks like the Lippert Scissor Stabilizer Jacks with Handle # LC285344, then we do offer a stabilizer...
    view full answer...
  • Replacing Scissor Jacks with Frame Mount Stabilizer Jack on a 32 Foot 5th Wheel Trailer
    The advantage that the Frame-Mount Stabilizer Jack, # UF39-941707, gives you over scissor jacks, like part # UF48-979002, is that it is one unit mounted across your trailer frame providing more stability. This stabilizer jack can be adjusted from either side like your scissor jacks to accommodate for surfaces that are not level.
    view full answer...
  • Lifting Capacity and Motor Specs of the Lippert Components High-Speed Power Stabilizer Jack
    The Lippert Components High-Speed Power Stabilizer Jack part # LC298707 is a stabilizer jack and is not designed to lift therefore, does not have a lift capacity. It will be suitable for most camper trailers, travel trailers, 5th wheel trailers, and gooseneck trailers according to Lippert but they do not list specific capacities. The Klauber C800 motor that is used on the jack has a 25.8 ft lb torque rating and an 80 RPM speed. If you need a stabilizer jack with an exact capacity then...
    view full answer...
  • Are the Switches of the Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707 Waterproof
    The switches of the Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707 are considered weather resistant meaning that as long as you don't submerge them under water they will hold up just fine under normal rain/snow situations.
    view full answer...
  • Electric Stabilizer Jack Options for a 2012 Keystone Laredo
    We have a few different electric stabilizer options that could work on your trailer. First we have # UF39-941705 which has dual motors and fits trailers and RVs with frames from 48" to 80" wide. It offers 30 inches of lift. It is rated for 6,000 pounds with the legs extended to 30 inches and 3,000 pounds with the legs extended 15 inches. We also have # UF39-941707 for trailers and RVs with frames from 42" to 77" wide. it has 22 inches of lift and is rated for 6,000 pounds. The amount...
    view full answer...
  • What Is The Length Of The Ultra-Fab Twin II Stabilizer Mounting Bracket
    The mounting bracket for the Ultra-Fab Power Twin II Manual Stabilizer # UF39-941704 is approximately 35-3/8" in length. The frame height would dictate the amount of lift you would want but there are other factors to take into account. The placement of the stabilizer could lead you running into clearance issues when going up or down a steep hill so if you'd prefer to have as much clearance as possible then you'd go with the 22" # UF39-941707. The trade off is that you'd most likely have...
    view full answer...
  • Benefits of Using Dual-Motor Electric Trailer Stabilizer
    Most of the frame-mount motorized RV stabilizers we offer are single-motor types that raise the stabilizer as a single total unit. Dual motor types like the Power Twin II # UF39-941707 offer the advantages of more motor power to do the job, generally faster operation and also that each motor - and each half of the stabilizer - can be operated independently for finer control of leveling. This is especially valuable when your trailer is on less than perfectly level ground (in other words,...
    view full answer...
  • Weight and Mounting Location of the Ultra-Fab Power Twin II Electric Stabilizer # UF39-941707
    I have confirmed with my contacts at Ultra-Fab and the weight of Ultra-Fab Power Twin II Electric Stabilizer for Trailers # UF39-941707 is 109 pounds. This stabilizer should be mounted directly to the frame of your trailer, and will work great along the rear of your trailer.
    view full answer...

< Previous
123. . .4

Do you have a question about this Camper Jack?

Info for this part was:

Employee Jackie C
Expert Research:
Jackie C
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Lindsey S
Written by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Halie H
Updated by:
Halie H
Employee Noah M
Updated by:
Noah M
Employee Eric H
Updated by:
Eric H

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. Let us know if anything is missing or if you have any questions.