bing tracking image
  1. Trailer Jack
  2. Ultra-Fab Products
  3. Car Hauler
  4. Enclosed Trailer
  5. Utility Trailer
  6. 3001 - 4000 lbs
Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs

Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs

Item # UF38-944040
Retail:$617.48
Our Price: $365.36
You Save: $252.12
Trailer Jack
Shipping Weight: 29 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

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
This super-fast electric A-frame jack has a durable, efficient ball screw and a memory function for easy setup. Offers 18" of travel and 4-1/2" of extension with the drop leg. Extends 6" in 9.5 seconds with 1,000 lbs of tongue weight. Great Prices for the best trailer jack from Ultra-Fab Products. Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs part number UF38-944040 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (108)
  • Q & A (0)
  • Photos

Ultra-Fab Products Trailer Jack - UF38-944040

  • Car Hauler
  • Enclosed Trailer
  • Utility Trailer
  • 3001 - 4000 lbs
  • Electric Jack
  • Bolt-On
  • A-Frame Jack
  • Leveling Jacks
  • Tongue Jacks
  • 18 Inch Lift
  • With Round Foot
  • Steel
  • Ultra-Fab Products

This super-fast electric A-frame jack has a durable, efficient ball screw and a memory function for easy setup. Offers 18" of travel and 4-1/2" of extension with the drop leg. Extends 6" in 9.5 seconds with 1,000 lbs of tongue weight.


Features:

  • Electric jack lets you lift and lower your A-frame trailer quickly and easily
  • Efficient ball screw makes it fast and easy to position your trailer
    • Ball bearings roll along sturdy, threaded steel rod
  • Powered drive provides quiet operation and eliminates the need for hand cranking
  • Easy-to-access on/off and retract/extend buttons make for simple operation
    • Buttons on front panel will not break off like standard toggle switches
  • LED courtesy light on front of jack allows for simple nighttime setup
  • Durable powder coat finish resists corrosion
  • Emergency override allows manual operation in case of power failure
    • Included adapter allows you to easily use your drill to raise and lower the jack
    • Manual crank handle not included
  • Bolt-on installation


Specs:

  • Bracket height:
    • 10-1/2" Retracted - from mounting bracket to bottom of footpad
    • 28-1/2" Extended - from the bottom of the extended jack and extended footpad
  • Total travel: 22-1/2"
    • Travel: 18"
    • Drop leg: 4-1/2"
  • Drop leg: 4 adjustment holes 1-1/2" apart center to center
  • Travel speed (w/ 1,000-lb tongue weight):
    • Extends 6" in 9.5 seconds
    • Retracts 6" in 8.6 seconds
  • Lift capacity: 4,000 lbs
  • Outer tube diameter: 2-1/4"
  • Footplate diameter: 6"
  • Motor attributes:
    • 12 Volt
    • 10" Travel in 18 seconds
  • 2-Year warranty
    • 10-Year warranty if registered within 90 days


How to Determine the Lift Capacity You Need in a Jack

A trailer jack is designed to lift the tongue of your trailer so you can connect the trailer coupler to your hitch ball. To do this, you'll need a jack with a lift capacity high enough to handle your trailer's tongue weight.


Tongue weight is the amount of weight that your trailer applies to the back of your tow vehicle. Typically, your tongue weight should be 10-15% of your total trailer weight (trailer + cargo). In other words, a 10,000-lb trailer would have a tongue weight between 1,000 lbs and 1,500 lbs. For a trailer this size, you would need a jack with a lift capacity of at least 1,500 lbs.


It's okay to have a jack with a weight rating that is higher than your trailer's tongue weight. In fact, a jack with a higher lift capacity should operate more efficiently, allowing you to spend less time cranking and more time camping.


Trailer and Camper Jack Lift

Every jack offers a certain amount of lift or travel. Screw travel is the distance the jack extends when you crank it (or toggle it to "extend" on an electric model). Some jacks include a drop leg for extra adjustability. On these jacks, you'll see the maximum extension of the drop leg listed in the specs as well. Adding the screw travel and drop leg travel together will give you the total lift. The total lift listed above can help you determine how high this jack will be able to raise your trailer.



38-944040 Ultra Fab Phoenix Power Trailer Tongue Jack - A-Frame - 18" Travel - 4,000 lbs

Installation Details UF38-944040 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs - UF38-944040

Average Customer Rating:  4.5 out of 5 stars   (108 Customer Reviews)

This super-fast electric A-frame jack has a durable, efficient ball screw and a memory function for easy setup. Offers 18" of travel and 4-1/2" of extension with the drop leg. Extends 6" in 9.5 seconds with 1,000 lbs of tongue weight.

by:

I have had 6 trips with the Phoenix 4000 and it worked great for first 4 . Hooking up for 5th trip I pressed button to raise . Button lite up for a second then turned off. Trailer did not raise . I turned power off then back on hoping to reboot and it worked.
It failed again at camp . I used ratchet to operate. When I got home I found 30 amp fuse blown inside of camper . I replaced fuse . I also believe inline fuse provided was loose at spring so I replaced with30 amp blade style fuse . It has worked perfectly now and hoping it will continue.



by:

I installed this on a construction tool cargo trailer. This trailer is outfitted with solar and a battery bank so an electric jack was a no brainer since I already had plenty of power storage. I didn't want to install in the stock jack location so that I could fully open my truck's tailgate. I was able to find a bolt-on jack bracket from a different online store, which made for a easy installation without welding. The same electrician that installed the solar and batteries wired the jack into the elec system and he said it was slick. The trailer has several thousand pounds of tongue weight and this jack has no problem lifting it. The memory settings are handy. This saves quite a bit of time connecting and disconnecting. With the push of a button the trailer jack lifts or lowers automatically while I deal with the safety chains, break away cable, and 7 prong plug. Just as advertised it lifts very quickly even under load. It was installed about a year ago and it's still going strong. I give this a 5 star rating without hesitation. Strong, durable, and well made.



by:

This Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs unit works great. It lifts my car hauler quickly, and with ease. Based on other reviews, I was unclear if the tailgate on my Chevy 2500 would fully open with this jack installed. I installed it with the controls facing to the drivers side to provide additional clearance. With weight on the trucks receiver, the tailgate just contacts the jack when opening, but will fully open. If the jack is extended, and the receiver / tongue is raised, it provides enough clearance to open fully without contact. I'm very happy with this purchase.



by:

I Love the speed of its raising and lowering. I loved the memory button. Haven't used my trailer all winter and when I went to hook it up, I pressed memory #1 and it raised up to the position to back underneath it. How cool is that? To me, this is the number one best jack on the market.



by:

I have these jacks on my fish house so they have been used in -25F temps. The jacks work great and they are fast.

Richard

12/28/2023

Still working as should but one jack sounds a little rough on retract.

Etrailer Expert

Mike L.

12/28/2023

@Richard Has the jack ever been over extended or retracted? Doing so can damage the jack. The jack is covered by a 2-year warranty.


by:

Keep scrolling!
This jack has been replaced
twice now within a year. Thankfully Phoenix does send a replacement but having a 16' enclosed trailer stuck to your truck gets old quick. Also, the option to manually turn the jack by hand does not work when the jack freezes up



by:

Easy to install, works very well. Mounting the unit sideways to provide more clearance for the tailgate makes the light point sideways. All fasteners come up from the below which eliminates the possibility for rust. Nice design...



by:

Very happy with the performance of this trailer jack.The speed is so fast and it has held up very well.



by:

I LOVE this jack.
I cant stand pushing
a jack button and waiting forever for the jack to run up or down, I wanted something faster. This is it!!
No issues lifting my loaded race trailer, smooth operation, no standing in the rain for 10 minutes waiting for it to run up off the ball of the truck. Best accessory I ever bought for my trailer.
Definitely recommend!



by:

THIS JACK IS BY FAR THE FASTEST AND MOST USER FRIENDLY.I WOULD HIGHLY RECOMMEND THIS JACK.



by:

Easy install. Other than the speed of this jack the best feature is you can mount the front of the jack facing the drivers side so you now have room to lower your tailgate without it hitting the jack.



by:

Very smooth and quiet operation, and seems to be plenty powerful for my trailer. Easy install and no issues after one year. Very happy with this jack.



by:

worked great for 1 year, 4 months. I will be submitting warranty claim. the jack suddenly popped a fuse and stopped working. my electrician checked it and says it is an internal dead short in the motor. lucky me....

Etrailer Expert

Jenny N.

5/15/2023

This jack does have a two year warranty and I will send over the warranty return instructions to you.



by:

This jack is amazing. Fast. Quiet. The memory is very useful. The extra mounting holes on the base plate allow you to spin the jack to place it so that the truck tail gate will not strike the head of it if you drop the tailgate. I highly recommend this jack.



by:

This is the best jack I have had (and I seem to have gone thru quite a few). It was a quick and easy install for a replacement and I have found it is the fastest jack to raise or lower my hitch. It is also one of the quietest I have ever used. Great for early morning packing and not waking up all the neighbors. :) The jack seems a lot stronger than other jacks I have used and better built with less plastic on it than most. Would definitely replace any manufacture supplied jack on a new trailer with this one again on a heartbeat!

Lonny A.

9/13/2017

I have had a problem with the switch on this jack. It was the first generation of the jack. I spoke with Ultrafab and they replaced the whole jack with a new one without any issue to correct the issue. I am very impressed with the Jack and especially the great customer service! Cant be beat!



by:

Installation was very easy. Just pulled off the old jack and installed the new Phoenix. Wired it up an WOW!! This thing is FAST!! My travel trailer is 36' long. This operates it up and down like it weighs nothing! My old jack quit working 2 months out of warranty and it NEVER operated half as fast as this one. If the durability is as good as the operation this may be the best tongue jack ever! Being able to double click the up or down button for automatic operation is a great idea! If any problems arise I will try to update this review.



by:

One year anniversary of installing this on my Airstream Basecamp, works great and really makes life a lot easier compared to the hand crank that came with the trailer.



by:

After only a few uses the jack quit working. First the memory settings kept getting "forgotten". I reprogramed them twice before they quite working altogether. I kept using it without the presets but later it would not go up and down. I had to use a wrench and the provided socket to to move the jack which was much harder than expected. While I was turning the jack it started running, ripped the wrench out of my hand, and the wrench handle put a hole in my propane tank cover. The manufacture replaced the jack at no charge but would not do anything about my propane cover. After using the 2nd jack awhile in now is making clicking noises as the tongue is lowering. It sounds like maybe there is a tooth missing on one of the gears. My tongue weight is around 1400 lbs so well below the rating yet the jack does not seem to be holding up well even though it is not use all that often.

Otherwise I do like the jack. It is fast and the memory presets are a nice convenience. I also like that the head is smaller than other similar units.



by:

The jack is very nice. We had an issue with the original; however, etrailer and the mfg immediately replaced it. As always great customer service!



by:

Very happy works great can even but the tailgate down.
Wish you would include to ring turminals for the battery post. Thanks



by:

Great addition to my cargo trailer. Much easier than the crank.



by:

Best jack out there. The fast up and down speed along with the 2-button memory makes this jack the best one out there in my opinion. Mine had 2 memory buttons (a lot of the promo material suggested only 1 memory button) so I can set one for the extended/hitching position, and a second for the fully retracted position. Thus, I never need to hold extend/retract...rather I just hit one of the memory buttons and it does the rest. Huge time saver. To set the memory on mine I hold the desired memory button and wait for the light to flash red (not green like the manual said). The drop foot is also a nice feature. I would strongly recommend this jack.



by:

Works well and is VERY fast.
Strong enough
to lift the back of my pickup up. (raised it a little to far when putting on my weight distribution hitch.)

To make it go up or down just a little bit, press firmly and release. If you try to tap it lightly, and do it twice too fast, the jack will go ALL THE WAY in that direction.

It would be very nice if it came with a weather proof cover. (No bright logo please. People would know it is a good one and might wish to steal the jack.)



by:

I have been happy with the jack. It is much faster than my old one, and doesn't sound like it is going to die while lifting. I really like the memory settings it has, as they come in very handy.



by:

Replacement for my camper and it works great. Easy install and operation. Also like the 10 year warranty.


25
108
Show More Reviews

See what our Experts say about this Ultra-Fab Products Trailer Jack

  • Phoenix Electric Trailer Jack Mounting Bracket to the top of the Jack Dimensions
    The total height from the mounting flange to the top of the Phoenix Electric Trailer Jack Phoenix Electric Trailer Jack is 22.75". The overall height is 33". I have attached a diagram for your reference.
    view full answer...
    Image 1 for
  • Troubleshooting Phoenix 4000 Electric Jack Not Working
    Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs # UF38-944040 sounds like it needs a better ground connection. You can wire it directly to the battery like in the installed video or you can install the ground wired to the trailer frame directly with a bare metal to metal connection. The battery itself may need a charge so I'd check that out as well by connecting to a different battery or charging the trailer battery then reconnecting the jack. If the red LED flashes...
    view full answer...
  • Could Powered A-Frame Jack be Powered From Breakaway Battery
    You would not want to connect a powered a-frame trailer jack to a breakaway battery like you mentioned. The battery would not have enough power to operate the jack. You'd want to put a second battery on your trailer that would be used for powering the jack or draw the power for the jack from the 12 volt accessory circuit of the trailer wiring.
    view full answer...
  • Why Does My Electric Trailer Jack Beep when the Trailer is Not Hooked Up
    If you have Phoenix Electric Trailer Jack - A-Frame - 22-1/2" Lift - 4,000 lbs Item # UF38-944040 it will show a red light when there is a low voltage situation. There could still be a low power situation though so you could have the battery on the trailer tested. If it is a different brand jack there may be something to indicate why it is beeping in the manual. If you do not have the manual tell me the make and model of the jack and I can see if I can find more information on it. In...
    view full answer...
  • Troubleshooting Phoenix Electric Trailer Jack for Beeping
    When we have seen this before with the Phoenix Electric Trailer Jack, # UF38-944040 it frequently is from an improper voltage reading. The unit is shutting itself off for protection. Please verify that your battery bank is fully charged and in good working order then check all the wiring connections for the jack ensuring you have a good ground.
    view full answer...
  • Troubleshooting A Non-Working Ultra-Fab Phoenix Electric Trailer Jack
    If your Phoenix Electric Trailer Jack # UF38-944040 has power but isn't extending/retracting and the light isn't working then your in-line fuse has most likely blown. If you look at the attached video below around 9:30 minute mark Conner will show you the included fuse holder. You'll want to unscrew the cap on the fuse holder and check that the wire inside the fuse isn't blown apart. You can pick up replacement 30 amp slow blow fuses at your local hardware store.
    view full answer...
  • What is Amperage Draw of Phoenix Electric Trailer Jack UF38-944040
    The Phoenix Electric Trailer Jack # UF38-944040 internally has a 30 amp slow blow fuse for circuit protection so that would be the rating breaker you would want to use.
    view full answer...
  • What is the Dimension From the Mounting Plate to the Top of the Phoenix Electric Jack
    The measurement from the mounting plate to the top of the jack on the Phoenix Electric Trailer Jack # UF38-944040 is 22.75".
    view full answer...
    Image 1 for
  • Memory Settings for Phoenix Electric Trailer Jack if Power Removed
    I confirmed with the manufacturer that yes, the Phoenix Electric Trailer Jack, # UF38-944040 can be disconnected from power source and it will still retain its memory settings.
    view full answer...
  • Options if an Ultra-Fab Phoenix Electric Trailer Jack Has a Bad Circuit Board
    Good news and bad news. There is not a replacement circuit board available for the Phoenix Electric Trailer Jack # UF38-944040. So if the circuit board goes bad, it will either need to be covered under warranty or you'll need a new jack. The good news is that the Phoenix Electric Trailer Jack # UF38-944040 comes with a 2 year warranty or all the way up to a 10 year warranty if you registered your jack within 90 days of purchase.
    view full answer...
  • How To Manually Extend And Retract An Ultra-Fab Phoenix 4000 Electric Trailer Jack
    You should never use an impact drill to raise or lower a jack since it would hammer as it drills and most likely damaged the internal components of the jack making it harder to manually raise and lower it. Ultra-Fab has stated that the Phoenix Electric Trailer Jack # UF38-944040 isn't the easiest jack on the market to manually raise and lower, but what you're describing is well beyond the norm. When manually overriding the jack you need to first unscrew the fuse and remove it and then...
    view full answer...
    Image 1 for
  • Length and Gauge of Wires of the Phoenix Electric Trailer Jack # UF38-944040
    The wires of the Phoenix Electric Trailer Jack # UF38-944040 are 10 gauge and 81 inches long.
    view full answer...
  • How to Remove Cover on Phoenix Electric Trailer Jack
    According to Ultra-Fab there should be two screws underneath the head toward the back of the # UF38-944040. Removing these two screws will allow you to lift the cover off. It sounds like a wire inside may have been pulled loose since you have power running up into the jack. If you are unable to repair it Ultra-Fab said it would be covered under the warranty. Assuming you registered the jack within 90 days, you should have a 10-year warranty to cover anything like this.
    view full answer...
  • Cover Recommendation for Phoenix Electric Trailer Jack # UF38-944040
    The Ultra Fab jack cover part # UF38-944020 is the recommended cover for the Ultra-Fab jack part # UF38-944040. This will fit the jack perfectly.
    view full answer...
  • Powered A-Frame Jack Recommendation for 5,600 lb Toy Hauler with Weight Distribution
    The higher the capacity of the jack that you go with the quicker it will raise and lower due to less straining but you could easily get by with a 3,500 lb capacity jack on a trailer with a 700 lb tongue weight. My favorite one to recommend is the Phoenix part # UF38-944040 which is by far the fastest jack out there as it extends in less than 10 seconds. This will make the process of jacking up and down to install your WD system much quicker and easier.
    view full answer...
  • Electric jack Recommendation for 2018 Jayco Jay Flight 242BHSW
    The electric jack I would recommend for your 2018 Jayco Jay Flight 242BHSW is the Phoenix Electric Jack part # UF38-944040 as this is the fastest electric jack out there. Travel speed (w/ 1,000-lb tongue weight): Extends 6" in 9.5 seconds Retracts 6" in 8.6 seconds Most electric jacks are pretty slow but this one is very quick. I attached a review video for this for you to check out as well.
    view full answer...
  • Is There a Replacement Motor for Tongue Jack on Forest River XLR Boost
    I do have some great full replacement options for you but the motors are not replaceable on trailer tongue jacks. There might be one or two out there which are but none of the dozens we carry ever have that option. Instead, I recommend the Phoenix Electric Trailer Jack part # UF38-944040 which is one of the fastest options on the market and it comes with a 10 year warranty. I have attached a video I did on this very same jack below.
    view full answer...
  • Replacement A-Frame Jack for 2020 Grand Design Reflection 300RBTS
    For an A-Frame jack replacement on your 2020 Grand Design Reflection 300RBTS I recommend the Phoenix Electric Trailer Jack # UF38-944040. I'm not sure what your current jack capacity is but this has a lift capacity of 4,000 lbs, which is more than enough for your travel trailer. It has a 10-1/2" retracted bracket height and a 28-1/2" extended height with a total travel of 22-1/2". This also comes with a 10-year warranty if registered within 90 days that can't be beat.
    view full answer...
  • Can The Phoenix Electric Trailer Jack Be Wired To The 7-Way Instead Of The Battery
    You could power the Phoenix Electric Trailer Jack # UF38-944040 by wiring it to the 12v accessory wire of the 7-way in your junction box, like part # 38656, instead of wiring it directly to the battery. There are pros and cons to this though. The pros being that the wiring is a bit more tucked away and less likely to corrode on terminal in the junction box versus sitting outside with the battery (if you don't have a cover). You'll also never have to worry about a dead battery since you'll...
    view full answer...
  • Powered A-Frame Trailer Jack Recommendation
    For an electric a-frame jack I would recommend the Phoenix part # UF38-944040 as this has more than enough capacity and is the fastest electric jack out there that can go from all the way up to all the way down in a matter of seconds. To be exact: Extends 6" in 9.5 seconds Retracts 6" in 8.6 seconds
    view full answer...
  • Replacement Powered A-Frame Jack to Replace 3,500 lb Jack that Failed
    Trailer jacks do sometimes fail even when they are being used under their capacity so while it's a bummer that yours did I wouldn't say you did anything wrong and maybe just had some bad luck with yours. For a replacement I really like the Phoenix Electric Trailer Jack part # UF38-944040 which has a slightly higher capacity at 4k but what I really like about it is that it is incredibly fast. It can fully extend or retract in less than 10 seconds. It also has a reputation as being very...
    view full answer...
  • Troubleshooting Ultra-Fab Phoenix Electric Tongue Jack That Won't Extend or Retract
    The Ultra-Fab Phoenix Electric Trailer Jack with Remote- 5,500 lbs # UF38-944055 or 4,000 lb # UF38-944040 without remote sounds like it may have a mechanical issue. I recommend using the manual crank to extend or lower the jack. If you can use this, then you isolate the issue to electrical with a possible bad ground or motor issue. If you can't physically move the jack with the manual crank then we know the issue is mechanical with the inner rod seized or having stripped threads. If...
    view full answer...
  • Is Replacement Bolt for Head of Husky Brute Jack Available
    I reached out to my contact at Husky and she said that those bolts aren't available as replacement parts so if you are outside of the 1-year warranty then the only option is to replace the jack. I recommend the Phoenix Electric Trailer Jack # UF38-944040 which has a slightly lower rating at 4,000 lbs but it boasts an impressive travel speed of 10" in 18 seconds. The upgraded version of the Phoenix is part # UF38-944055 which has a higher weight capacity at 5,500 lbs and comes with a remote...
    view full answer...
  • Electric Trailer Jack Recommendation for Coachmen Travel Trailer
    If you were looking for a cost effective electric jack that would work great on your 1997 Coachman the Stromberg part # JET-2500 that you referenced would work really great. This is a really solid jack that will work great for a long time and it doesn't break the bank. If you wanted something nicer that raises and lowers incredibly quick we have the Phoenix jack part # UF38-944040 which raises and lowers completely in less than 10 seconds.
    view full answer...

Do you have a question about this Trailer Jack?


Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Amber S
Video by:
Amber S
Employee Thomas T
Video by:
Thomas T
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Installed by:
Kathleen M
Employee Cole B
Installed by:
Cole B
Employee Randy B
Installed by:
Randy B
Employee Conner L
Installed by:
Conner L
Employee Wilson B
Updated by:
Wilson B
Employee Halie H
Updated by:
Halie H
Employee Mike S
Updated by:
Mike S
Employee Eric H
Updated by:
Eric H
Employee Kristen H
Written by:
Kristen H
Employee Michael H
Test Fit:
Michael H

At etrailer.com 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.