Camper Jack

/

etrailer

/

A-Frame Jack

/

3500 lbs

/

Electric Jack

/

25-1/8 Inch Lift

Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black

Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black

Item # EJ-3520-BBX

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Camper Jack

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Shipping Weight: 24 lbs

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EJ-3520-BBX - Bolt-On etrailer A-Frame Jack
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Product Images

In Use/Installed

Customer Photos

Electric A-frame jack has 2 toggle switches for operation. Jack has a retracted height of 9", an extended height of 28-1/2", and 19-1/2" of travel. Drop leg offers an extra 5-5/8" of lift. Includes a manual override handle. Call 800-298-8924 to order etrailer camper jack part number EJ-3520-BBX or order online at etrailer.com. Free expert support on all etrailer products. Guaranteed Lowest Price and Fastest Shipping for Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black. Camper Jack reviews from real customers.
  • All Info
  • Reviews (719)
  • Q & A (170)
  • Videos (2)
  • Photos
  • Why etrailer?

etrailer Camper Jack - EJ-3520-BBX

  • A-Frame Jack
  • 3500 lbs
  • etrailer
  • Electric Jack
  • 25-1/8 Inch Lift
  • Bolt-On
  • 2-1/4 Inch

Electric A-frame jack has 2 toggle switches for operation. Jack has a retracted height of 9", an extended height of 28-1/2", and 19-1/2" of travel. Drop leg offers an extra 5-5/8" of lift. Includes a manual override handle.


Features:

  • Electric jack lets you raise and lower your A-frame trailer
  • Drop leg allows for increased lift and saves time when raising or lowering
    • Pin and clip holds leg at desired location
  • 2 Toggle switches on the front of the housing let you operate the jack
    • On/off switch controls light
    • Extend/retract switch controls up and down movement
  • LED light illuminates at a downward angle to help you focus on your coupler
  • Emergency crank (included) allows you to manually operate jack if needed
    • Requires a 3/8" socket to use the manual crank
  • Black powder coated outer tube
  • Zinc-finished inner tube and footplate resist corrosion
  • Simple, bolt-on installation
    • Wires to 12-volt power source
      • 12-Gauge wires
    • Serrated washer included for ground connection


Specs:

  • Bracket height:
    • Retracted: 9"
    • Extended: 28-1/2"
  • Total lift: 25-1/8"
    • Screw travel: 19-1/2"
    • Drop leg travel: 5-5/8"
  • Clearance:
    • 20-1/2" From bottom of bracket to top of jack
  • Outer tube diameter: 2-1/4"
  • Inner tube diameter: 2"
  • Hole spacing on drop leg: 1-7/8"
  • Footplate diameter: 5-1/2"
  • Lift capacity: 3,500 lbs
  • 1-Year warranty


EJ-3520-BBX Ram Powered Jack w/ Footplate - Drop Leg - A-Frame - 19-1/2" Screw Travel - 3,500 lbs - Black







Video of Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black


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




Video Transcript for etrailer Electric Jack with Footplate Review

Speaker 1: Today we're going to be taking a look at the Etrailer Electric Jack with Footplate designed for use on A-frame trailers. This offers 25 and 1/8 of an inch of lift and a 3500 pound capacity. In black, the part number is EJ-3520-BBX and in white, it's part number EJ-3520-WBX.Now an electric A-frame jack like this is going to take a lot of the work out of hooking it up and disconnecting your trailer. With these big enclosed trailers, campers and even utility trailers, it can be quite heavy. Getting a manual jack, the operator lifting it up to your ball, it's just not very feasible.With this, we're able to very quickly and easily adjust the height up and down. When connected to either our vehicle or to a 12 volt power source inside our trailer.

Now on the front of the jack, you're going to have two buttons to operate it. One will be for up and down. The other's going to be for the light. Now this can be pretty handy. We've got a lens here on the bottom that shines right down on our coupler, and also out towards our vehicle so we can make our wiring connections pretty easy.Now the cover on the jack's designed to shield it from any kind of moisture or anything like that.

As the rain comes down, it hits, it's going to run off, we've got our seam around the bottom side here so we shouldn't have to worry about that moisture getting in. Also you've got a cap here, you're gonna turn it and lift up. It allows you to access the emergency override. Now in the event that you don't have a power supply or maybe your trailer's battery is going dead, we can take the provided handle, place it down and on and easily raise or lower our trailer so we can still make our connection.Now as you can see, the jack's designed to really give you a lot of lift on the front side of your trailer. So this can help with run-off and drainage on the backs so things don't sit on top.

And something else you'll like, when it gets to it's fully extended position, it just stops, we don't have to worry about overdoing it.With it in this position, we'll get a bracket height measurement that'll be right up to that mounting surface. It's going to be about 33 and 3/4 of an inch. So if we retract our footplate, that'd be closer to that 28 and 1/2 inch mark.We see fully retracted with that leg extended. We're at about 14 and 1/2, 14 and 5/8, so if we subtract the drop leg, it puts us at about 9. Now the outer tube of our jack and the plate are going to have a black powder coat finish.

While the inner tube or pinning clip and drop leg are going to have the zinc finish. Both of those are going to be great at resisting corrosion.Now not only does this drop leg help to save us some wear and tear on our jack and also us some time, but it also helps to spread the energy or the force of that jack out over a greater area. This can be really important when we're on softer surfaces and prevent it from sinking into the ground.Now another measurement to keep in mind will be from the top of our bracket here to the very top of our jack, we've got about 20 and 1/2 to 20 and 5/8 of an inch. You just want to make sure if you have anything overhanging, you've got enough room for that to fit in.Now to begin your jack installation of course, you'll want to remove your old jack. Save the hardware with that though. The jack doesn't come with it, so you'll want to have that handy. Then we'll just remove our footplate here, set to the side and we'll be ready to drop our tube down through. Now this is a two and a quarter inch outside diameter tube. So you just want to ensure that your holes large enough to accommodate that, and you should have your triangle shape bolt pad in there. It's pretty standard on A-frame trailers. It's going to bring that right down through and line those up.Now if you don't have hardware already existing or if you need to replace it if yours is damaged, you just want to ensure that you're using a 3/8 inch diameter bolt that needs to be at least a grade five. As long as you meet those requirements, you'll be in good shape. You see ours had a lock washer on it. I'm gonna keep that and then we're gonna place on our flat washer. The flat washer's provided with the jack as well as the star washer. That's gonna go underneath that flat washer. When we tighten it down, it's gonna penetrate that paint, so we get a good ground. We're going to do that in all three of our locations. Now we're going to torque our fasteners down to the specifications listed in the instructions.Now once we've got our jack nice and secure, we now are going to move onto wiring it up. You'll see they give you a good length of wire here. What I like to do is run this along with my seven pole. You can there are a couple zip ties already on there. It really uses many zip ties as you need to keep everything nice and secure.Now you can get power for this from two ways. If you're using it on a camper or an enclosed trailer, something that already has a battery on board, you can just run this to your battery. It's going to be grounded here so everything should work as long as your battery is grounded. If not, if you don't have an on-board battery, you can do it right off the power coming through your vehicle through your seven pole plug. Ours runs to a junction box. The wire coming out of the junction box is here and that'll provide the power that we need when we're hooked up. So, if you have the option to hook it up to the battery, I recommend doing that, then you'll always have power. If you don't have a battery on-board, you'll only have power to the jack when this is plugged into a truck with a working 12 volt power outlet or any vehicle for that matter with a working 12 volt power plug coming out of it.Now the extra wire, I've just coiled up here at the base of the jack, really keeps it out of the way, not really too much of an issue, and then you'll have extra if you ever need to change it or make any modifications. We're going to run that to our power wire here. So let's cut them off to the appropriate length. We're going to get both sides of that stripped back and we're going to use a butt connector to connect 'em, this is part number DW05745. It's a heat shrink butt connector. Since this is going to be out in the elements, it's a good idea to use the heat shrink just to protect it from the moisture. Got both sides of that crimped down, and then we'll use a heat gun, a mini-torch or a lighter and get that shrank. Just going to apply a little heat at a time here and you'll see that start to shrink down around the wire. Once you have it fully shrank, almost looks like your wire magnifies a little bit.Now we'll just use a couple more zip ties. Make sure our wires are nice and tight so they don't get hung on anything. You see on our drop leg here, we've got four holes to choose from. This one will have it in it's highest position. That's going to be more of a stored position. But this gives us four holes with an inch and 7/8 between 'em for a total of 5 and 5/8 inches of adjustment. That's just going to save wear and tear on our jack and the time we have to have it operating. We can get that down and then use our jack a little bit more quickly.Now we'll take the provided pin and clip. You just want to set your drop leg where you like it, bring that through and then secure it with the clip there. And as you can see, that's drastically going to reduce the distance our jack has to travel. Now we'll hook it up to our vehicle as you can see here so we have power, run the jack on down and support it.That's going to complete our look at the Etrailer Electric Jack with Footplate.


Customer Reviews

Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black - EJ-3520-BBX

Average Customer Rating:  4.7 out of 5 stars   (719 Customer Reviews)

Electric A-frame jack has 2 toggle switches for operation. Jack has a retracted height of 9", an extended height of 28-1/2", and 19-1/2" of travel. Drop leg offers an extra 5-5/8" of lift. Includes a manual override handle.

- EJ-3520-BBX
by:

After purchasing a small camper and using the hand crank jack two times that I would look for an electric jack to replace it. Many of the jacks cost more than I wanted to spend. Then I found "etrailer.com". The prices were reasonable. I ordered Item EJ-3520-BBX electric jack. I have had it for a year now and have used it many times. I truly a happy camper. It has saved me time and energy. My wife can operate it and has no trouble letting me fish while she breaks camp with no help at all. The follow up service is great. Check "etrailer.com" before you buy any where else. 566675


Comments

It is still doing great.

Samuel L - 09/19/2019

61316

- EJ-3520-BBX
by:

Well, we installed the electric tounge jack on our new Coleman camper and it worked perfectly. Easily installed, perfect for our trailer. Can't wait for Spring! 576113


Comments

Awesome, make life good again!

Peter - 10/21/2019

62953

- EJ-3520-BBX
by:

What a easy upgrade for your camper. I ordered and received in a few days. etrailer just does it right. Install was so easy, anyone can do it. No more cranking for me, push the button and like majic, you can take your trailer up or down. I also purchase the cover to keep the weather of the motor and controls. It is nice too. Thanks Lisa D for your great service. 496356



- EJ-3520-BBX
by:

Excellent product! This was super easy to install, took longer to look up what wire I needed to connect the jacks power lead to on my trailer that it did to do the actual install! This thing works great and has made life so much easier for my wife, hooking and unhooking our 7x16 cargo trailer is a breeze now, she often does craft shows. If I had another trailer I'd buy this jack again. 446201



- EJ-3520-BBX
by:

I installed the jack in about 10 minutes. It works great. I would recommend this to anyone who needs a good jack without spending a lot of money. The service was great also and I will be buying from etrailer again if I need anything. Thanks! 393024


Comments

The jack is hanging tough and working great

Bob N - 06/14/2018

39752

- EJ-3520-BBX
by:

I just installed this jack. The installation went easy but I did need a hammer to get the jack past the bottom hole in the trailer mount. Hook up to the battery was easy, just crimp on a ring terminal and connect it. I don't think this jack is very weather proof so I covered it with a canvas and suggest this is a necessary step. Only time will tell how it works long term but the price for this unit is very competitive and the jack seems well made. It was important to me to have the ability to raise and lower the jack manually and this is an option on this jack. 435649


Comments

I have had my trailer out a number of times in the past year. The jack has worked flawlessly. The only down side is my tailgate will not lower all the way with the trailer hitched up. It means I have to do a bit of preplanning but other wise its not a problem. I still keep the jack covered and suggest this is necessary for long life.

Ed B - 09/23/2018

43904

- EJ-3520-BBX
by:

This inexpensive travel trailer jack arrived after only two days via UPS. Securely packaged. It is truly a quality item! Very easy to install and works great. The manual handle is a bonus in the event it is ever needed. Be sure to follow the instructions making sure the three screws on the plate are solidly grounded using the supplied star washers. I can honestly say that this jack is one of the best items I've ever bought for my RV. Thanks etrailer! 480612


Comments

Still working great after a year. Im using the black vinyl cover, although the jack appears to be resistant to weather.

John M - 03/03/2019

50089

- EJ-3520-BBX
by:

I have installed the tongue lift on my camper . It fit perfectly and it operated just fine . No problems so far . I used a small battery clip on the hot wire from the lift and when I need to use it I simply clip it to the 12 volt battery on my camper . The way my camper is wired the ground wire from the camper to the battery has to be hooked up in order for the lift to operate . But I am very happy with it so far . By the way what is the warranty on the lift ? Sending pictures also of installation . 471421


Comments

Douglas, this product is covered by a 1-year limited warranty.

-- Laura E - 01/31/2018

34098

- EJ-3520-BBX
by:

I installed this jack about two weeks ago on a 22' travel trailer, and have only used it 3 or 4 times. This is the first electric jack I have owned. It was a breeze to install, only took about 10 minutes to replace the manual jack. If I would have known how easy they were to install I would have replaced my manual jack several years ago. I didn't rate it 5 stars because it operates slower than I expected, (may be normal) and I originally had trouble getting the jack to work. Seemed to be stuck or the gears out of sync. I took the manual crank and worked the jack back and forth a few times to get it going. Works good now. For the price I'm very satisfied. Only time will tell how the jack holds up, but if I can get 3 years or so out of it I will be happy. Sure beats cranking the trailer up and down by hand. I had a an old laptop case that I am using to protect the motor unit from the weather and it seems to do the job. 489608


Comments

Still very satisfied with this jack. After one year of moderate use I have had no problems. Its so much easier than the manual crank type. Thanks ETrailer!

Tom F - 03/27/2019

51071

- EJ-3520-BBX
by:

The Ram jack was very easy to install and hook up!! The motor runs super quite and has plenty of power to raise and lower our camper trailer. Only thing wrong with it was the plastic housing has a crack in it which I think happened in shipping. 394778



- EJ-3520-BBX
by:

Installed the new RAM electric tounge jack on my enclosed car hauler trailer. Very happy with this unit. Quick install, like the adjustable foot pad, and operated smoothly. etrailer packages well and deliveries quick. 500199


Comments

Working great. No problems to report. Highly recommend this product and your business! Thanks

Gary D - 04/24/2019

54400

- EJ-3520-BBX
by:

Customer Service is number 1!! Mr. George is awesome on ensuring you receive the product and are satisfied. I had the electric jack installed in less than an hour. That included reading instructions, acquiring the tools, running electrical check for hot wire, and replacing the tools. I used the electrical box under front of the trailer for the power. To ensure I would not chaff the wire, I selected a hole in the box and drilled it to 3/8". I then drilled a hole in a valve stem cap so the wire would slip through the valve stem cap. I then pushed the cap into the hole and wired to existing electric wires with wire cap. 491854



- EJ-3520-BBX
by:

Would have to say 4.5 on the rating only because of the installation instructions. On installation instruction #4 it tells you how to assemble the hardware and then directs you to a figure above. This figure is nothing more than the plain jack. Then it tells you on #6 to position the fuse holder as close to the power source positive terminal as possible. The fuse holder comes in already attached to the jack adjacent to the jack control switches. Ease of installation other than above. Common sense will get anyone past those directions. Jack operation was perfect after installation. Test of jack showed it works as advertised and I can't wait to use it in the upcoming camping trip. Ordering, customer service and shipping/receiving was excellent. I was informed on the delivery date and status of shipment by ETrailer to whole time. Properly packaged and the unit came in in excellent shape with no defects. As you can see in the pictures it is a clean install and I added a very nice cover which was also sold through E-Trailer. Another nice product to finish a successful installation. 379431



- EJ-3520-BBX
by:

I put the RAM hitch on the trailer and did not have any problems. Bolted in place and hooked the electrical up without any issues. I have not taken the camper out yet because of rain, but tried the light and up/down on the hitch and seems to work fine. Service at etrailer is very good. The only reason I did not give five stars is the instructions for installation are not very good. They tell you to refer to a picture and the picture is not there. It also tells you to install the fuse holder as close to the battery source as possible. However, the fuse holder is already in line and close to the unit. Minor issues as it is simple to install. One call to etrailer to check about the placement of the fuse holder and good to go. 523903


Comments

good

Matthew - 06/19/2019

56845

- EJ-3520-BBX
by:

We at Cariboo RV Mobile Part Service & Repair bought 2 of these Electriic Jacks (EJ-3520-BBX) and have sold them, nice product... Thanks etrailer... 442049


Comments

My camper jack is great, still working as good as new.... thanks so much...

Denise Y - 10/13/2018

44589

- EJ-3520-BBX
by:

It took way to long to come ,due to a back order , not etrailer fault. but then when it did come they actully put a screw in with no threads i never sen anything like that so i took a old screw from my old unit. and replaced it. i wasnt happy when i seen thay had a white one same thing but white for 116.00 and i paid 144.00 I actully told them after waiting I wanted the 116.00 one I think I should have got it or at least had the price reduced. im only writing this review because ui got a letter askig em to and i speak the truth period 545114



- EJ-3520-BBX
by:

Very solid and heavy duty jack, with bright LED lighting, manufactured by Ram. Adjustable foot piece for quicker adjusting... Jack pretty easy to install, with single wire electrical connection and 3 bolts. Jack has low gear ratio and foot shaft moves slowly, but has plenty of power to lift front of trailer. Plenty of clearance behind jack for propane tank cover on our Airstream. Replaced more expensive model that was bent at mounting flange being winched onto transport trailer. 474270


Comments

Jack is still slow and steady and has worked perfectly since installation... The adjustable foot unit is about an inch too tall for at lowest position some sites, based on low hitchball height of our tow vehicle, but we have used the shorter foot from prior jack as an alternate, and that solved problem...

John - 02/09/2019

49341

- EJ-3520-BBX
by:

The Jack seems to be great quality and was very easy to install. At first I was a bit perturbed with the lack of detail and small font of the one page directions, but it’s as simple as 3 bolts and one wire to the battery(the hack is grounded inside). It raises my 2017 Jayco Baja much higher than stock crank jack. I hope it lasts the test of time as I am very happy with it this first day. The light seems bright as well. 497245


Comments

After a year it still works great!!! Looks good and works like a dream!

Mike B - 04/17/2019

53050

- EJ-3520-BBX
by:

Received yesterday and had it mounted within half hour after delivery. Very simple installation and works great. Arrived just in time for leaving today for two weeks camping. I have bought from you people before and have never been disappointed with your service or delivery. Thank you. 441191


Comments

So far so good. The electric jack stand has held up very well this past year. Highly recommended

Bill S - 10/10/2018

44467

- EJ-3520-BBX
by:

Great customer service. After receiving a damaged unit on Tuesday the 26th, I called and spoke to Sal and emailed him pictures of the damages. Also they had originally sent a white one but I had ordered a black one. They immediately shipped a new black undamaged unit and I just received it on the 29th and got it installed. The damaged unit is on it's way back to E trailer. I have purchased many items from Etrailer and am very pleased with their service. 463641


Comments

I had to enlarge the hole in the tongue with a rotary file but after that the installation went well. Have used it for about 6 trips now and dont know how I ever did without it.

Jerry H - 12/29/2018

48085

- EJ-3520-BBX
by:

I checked out a lot of reviews before buying this jack. Part of my decision was based on the price point and that it has a higher lifting distance than some of the others. Installing the jack was a snap. Just mount the trailer on your trucks hitch for temporary support during the change over and you're off to the races. The bolt pattern matched the old manual jack so no issued there. Even with the washers that come with the electric jack my original screws were still long enough (you will need to reuse yours, the electric jack doesn't come with any). I simply zip tied the wire to the existing wire bundle under the A-frame. I did buy a ring kit to attach the end of the power wire to the battery properly. I did not cut any length from the wire as some reviewers had advised. Just coiled up the excess. The jack worked right away. I think I heard my aging shoulder breath a sigh of relief. Afterwards. I did order a cover for the electric jack head. I figure the unit will last longer if the sun isn't always burning down directly on it. So far, I would recommend this jack. Time will tell. 543425



- EJ-3520-BBX
by:

I received the tire package and electric tongue jack today. Everything arrived without damage and installed easily. Although I cannot predict longevity, I can say that the items seem of high quality. The new tires transformed my travel trailer. About the only negative thing I can say about the tongue jack is that it is a little slow but looks sturdy and well built. 569519



- EJ-3520-BBX
by:

The jack was not well put together. Some screws on the motor cover were falling off and the LED light was loose in its housing. The housing itself was installed incorrectly. I had to take it apart to put it together properly. Also, the cable where the fuse connection is was exposed. I used electrical tape to seal it. Not good for something new! After that mess the install was pretty simple. The jack lifts my trailer easy enough. On paper, this is the only jack that has long enough travel and drop leg to level our trailer on our driveway. The black also matches the trailer well. Time will tell if it holds up to normal use. It's on a Winnebago Micro Minnie 1706. 395461



- EJ-3520-BBX
by:

My electric trailer jack came at noon today. Got home from work at5:30 and had all hooked up and running in 25 minutes! Easy to install! Was worried about the motor head being too tight against propane bottle cover...but it fit perfectly!Runs super smooth so far. I put up with a hand crank tongue jack for far too long. Seems like a good product for a reasonable price!! 394253



- EJ-3520-BBX
by:

I bought this jack after doing a lot of research. The conclusion I came to was that most of these electric jacks are basically the same design with a different name stamped on them. I like how this one has an inline fuse, a higher lift range, and an adjustable footplate. I read a lot of forums, Facebook pages and reviews on a variety of websites. Etrailer offered the best option for what I was looking for. This jack is well made. It's heavy and solid. It was super easy to install. If you can't install this, you probably shouldn't be pulling a trailer. It was literally 3 bolts and a ring terminal. The wire lead does not come with a ring terminal attached. You have to add your own, which is no big deal. It comes this way so you can cut the excess wire to fit your application. It also came with 3 washers and 3 star washers to ensure a good ground connection on the wiring. The light is super bright as well. Etrailer kept me up to date the whole way through the ordering and shipping process. This was my first purchase from them and it was a great experience. 438735



- EJ-3520-BBX
by:

I just got this, opened the box, hauled it out to my trailer (which was stuck due to a frozen 'jack; already removed) and had this one installed and wired in about 5 minutes. And it worked; confirming my diagnosis that the old one was 'toast'. The only improvement that I can think of would be to incorporate a 'hanger' for the 8 pin plug when not in use.... So I pulled the old one off the dead jack and ziptied it to the main upright. Problem solved. The only reason there are only 4 stars is that it worked TODAY. In a month I may have to review again but shipping was fast and free. The jack worked well. So..... so far; no complaints! 571675



- EJ-3520-BBX
by:

This jack was easy to install and is exactly what I was hoping it would be. Etrailer has excellent customer service! When my jack was originally shipped it was not able to be delivered to me due to flooding. The jack was shipped back to etrailer. All it took was one phone call when the roads cleared and without hesitation they immediately shipped my jack back out. I received it within a few days. Above and beyond great customer service and just as good of a product. Will definitely use etrailer in the future. Thank you! 574502



- EJ-3520-BBX
by:

This was an excellent choice. It has lifted the tongue of my very heavy 16 ft enclosed trailer, fully loaded with approx 7000 lbs, many times. It has never failed to operate just as it should. And, the price was excellent. Pushing the button versus cranking a jack is a no brainer. Would buy again without hesitation. 571933



- EJ-3520-BBX
by:

It worked perfectly especially for its low price. Tow thumbs up 566583



- EJ-3520-BBX
by:

From super customer service from Natalie L to my first order being placed, I was extremely happy. I had just found this company on line and was leary of what I might encounter. Natalie L was customer friendly, courteous, and out going !! Her knowledge of the products was unbelievable !! The prices were very competitive and the shipping time was way faster than I had expected. From now on this will be my first choice for all my RV needs. Many thanks for a great experience !!! 450564


Comments

After a years use, this unit works as well as it did on day one. It has more than paid for itself with the amount of work it has saved me THANX ETRAILER

Bill - 11/09/2018

45583

- EJ-3520-BBX
by:

The old jack on our tent trailer (2" outer pipe) was getting harder to crank, and just didn't have the reach of this 12v powered jack I read about in an eTrailer email. I felt somewhat sure of the measurements and ordered it. It came on the third business day which was terrific as we're headed on a 5,000 mile odyssey up to Maine and through New England starting three days later. I rechecked the measurements, and note that, without the footplate, the lower level is 7" with about an additional 1-1/8" reveal of the inner 2" pipe. Installation was basically easy, and the holes lined up perfectly to re-use the original bolts along with the furnished washer hardware. In my case, the lower plate was LESS THAN 2-1/4'' and I spent a few minutes cutting with a Dremel tool to accommodate the lower pipe. The electrical hook-up was simple. I normally leave the negative connection to my battery detached, and this unit won't work without it re-connected since it grounds the frame. The upside of that is that you don't need to have an inline switch to thwart mischief, simply disconnect the negative cable to your trailer battery. This unit gives me much more range of height, the motor is powerful and quiet, and moves at a reasonable pace. The included footplate adds more height, but I'll use a short, flat one as a matter of convenience. Everything was as described, except for the measurements. I'd note that the top box is a full 8" deep. For us, that means I can't open the back gate of the tow vehicle when attached, but we'll change our discipline and put last minute items in the storage area of the trailer. Well done, eTrailer! 441983


Comments

A year later, the electric jack has worked flawlessly for us over the past year. I still give the unit a 5-star rating and enjoy the solid performance of the electric trailer jack.

Brian i - 10/13/2018

44565

- EJ-3520-BBX
by:

The trailer jack arrived in great condition and as described, it took about 15 minutes to take the old one Ok ff and install the new EJ-3520-BBX. Wired direct to my positive side of the RV battery works flawless, on my 2017 Jaco Jayflight 32BDSW. Thanks for fast and easy search on your website. 538711



- EJ-3520-BBX
by:

Good product so far. I have a suv and the rear door swings up. The door doesn’t hit the top of the jack. It hooked up easy but the main positive wire was busted up about on foot from jack. I didn’t like doing a extra splice but it’s all good. 464837



- EJ-3520-BBX
by:

Totally pleased. Have used it often and a wonderful help in setting up and down. Thank you for asking. Use on an A frame type popup. 572996



- EJ-3520-BBX
by:

Jack was easy to install and has worked flawlessly the few times I have used it. Was a great deal and works as well as similar ones costing much more. 572004



- EJ-3520-BBX
by:

Great value for money. First, the manual crank works better than the original manual only jack. Second, my wife finds the electric option very helpful. The physical installation is very easy and it fits right where the original jack was. The downside is that installation is simple but needs planning if your trailer doesn't already have an electric jack. You need to plan to put a large 12V battery on the trailer and then wire it in to both the jack and the trailer to tow vehicle connection. That connection is needed since, in our experience, even a charged car battery won't last for a complete raise so the tow vehicle connection is needed to supply the extra needed power to complete the lift. 572020



- EJ-3520-BBX
by:

Excellent quality economy priced jack. It’s on my 19’ travel trailer. I recently used a couple times a day on a month long road trip, with no problems. Soooo much better than the crank! 573882



- EJ-3520-BBX
by:

After four camping trips with a manual tounge jack, I decided to buy an electric one. My last camp site was 8 inches off level and that was enough for me. I installed the EJ-3520-BBX this afternoon. Everything worked fine except for a few tweaks. The lower a-frame hole for the tongue jack was too small so I had to use a sanding drum on a drill to open it up so it would fit. Not a big deal to me but might have been for someone non-mechanical. Not sure if that was a trailer problem or a non-standard tube diameter. The jack light (three LED's mounted on a circuit board) under the jack screw and motor cover had become completely dislodged from its slotted mount and was just floating around in the plastic housing. I took the cover off, re-mounted it and used stainless washers under the cover screws to prevent them from digging into the plastic when I put the cover back on. The jack works as advertised, and even picked up the rear of my Ram 2500 Cummins several inches to facilitate putting my Blue Ox WDH sway bars on. The tongue weight of my trailer is 650 lbs so I'm guessing it picked up well over 1500 lbs. I found an old dry bag and it fits perfectly over the jack to protect it from the weather. So far I am pleased with it but wished the manufacturer had used and automotive type spade fuse instead of the antiquated tubular glass fuse. Only time will tell as to the durability and longevity of this product but I am optimistic and there is a manual crank included if something goes down. A tick over a hundred bucks can save one a lot of aggrevation! 443807


Comments

Generally, I am happy with the product it has adequate power to lift my 900 lb. tounge weight plus lift the rear of my Ram 2500 to facilitate installing the spring bars of my Blue Ox WDH. However, what I dislike about the jack is the fact that there is no limit switch either up or down. It is possible to over-extend or collapse the jack when that happens, you can hear the gears slip a tooth which Im sure, over time, will incapacitate the jack.

Dennis D - 10/18/2018

44755

- EJ-3520-BBX
by:

Super fast delivery! Couldn't wait to install it, got right to it and it couldn't have been easier! Hooked up my camper to my van, then removed the 3 bolts holding my existing manual jack. Wish the instructions showed the proper order to install the new star/flat washers, but found that information online. Had it up and running in no time. It is a little slower than I expected but knowing that I won't have to hand crank anymore is awesome! Going to attach the one wire to an O ring today to complete the installation, was getting too dark last night, lol! Please update the instructions. 559772



- EJ-3520-BBX
by:

Bought for a gift. Looks great and sounds easy to install according to the reviews I read. But I can speak to the ease and incredible service this site provides. etrailer is fast to deliver and gives updates to shipping thru delivery. Thanks! 456519



- EJ-3520-BBX
by:

After one year I’m very happy with it. Works perfect every time. 574216



- EJ-3520-BBX
by:

Everything went perf CPT from initial question to installment. Your guys customer service and communication is excellent. 560076



- EJ-3520-BBX
by:

TOOK 10 MIN. TO INSTALL . WORKS GREAT. 435357


Comments

made setting up and taking down easy. best camping tool I have ever bought, and it only took me 10 minutes to install.

Don N - 09/22/2018

43876

- EJ-3520-BBX
by:

Works great easy install really good value at the lowest price I've seen. Every bit as good as those priced 2 to 3 times more. Great company great prices highly recommend.6 568013



- EJ-3520-BBX
by:

Purchased for a 2015 Tracer 238 Air Travel Trailer. It works as advertised. It comes with a single cable which is connected to the + positive side (red) of the battery. It is a slow process & like all new products there is a learning curve. My only regret is I didn't purchase one sooner. Make sure you buy a cover to protect your investment. I've also added an internal 30A surge protector, 30A automatic transfer switch, rear cargo carrier & generator to my trailer. I hope this helps. 477769



- EJ-3520-BBX
by:

The product we ordered was out of stock and we had to wait for it. They gave us many other options but we didn't need it right away. They sent follow up emails to let us know the status of the order. When it came from the manufacturer they sent it to us very quickly. Great customer service. We would definitely buy from them again. 436693


Comments

Still working great. Thank you so much. Question about storage for the winter. Cover or uncover?

Electric j - 09/26/2018

44032

A cover is recommended, and for this trailer jack I recommend # UF38-944020
Ultra-Fab Protective Cover for Electric A-Frame Jacks - Vinyl - 10-1/2" x 13-3/4"
$13.26
, and I have included a link for your reference.

-- Rachael H - 9/27/2018


- EJ-3520-BBX
by:

Should have done this sooner, no more cranking and struggling in the hot Texas sun. I slid the foot off, and installed the swing-up foot from my old jack and that extended the usable range of the electric jack. I also hooked the hot wire and a ground into a flat 4-plug, and plug it into the unused one on my truck, turn on the truck lights, and seems to work just fine. Yeah, it is a little slow, but I also don't have to take a break in the middle of cranking if my arm and elbow want a break. Add the bonus of a light on the top of it, and I'm very happy with my purchase. Ordering was easy, and shipping was fast. 524186



- EJ-3520-BBX
by:

The electric jack arrived on time and in excellent condition - had it installed that afternoon- installation couldn't have been any easier- Well made and it works Awesome - just replaced suspension on trailer - now it's good for 6k pounds - now my sons can load it to the max with logs and I won't have any problem getting it off my truck. 525380



- EJ-3520-BBX
by:

Jack works amazing! Installation fairly easy and straight forward.. 730906



- EJ-3520-BBX
by:

Used it for about 5 dry camping trips last summer with my 24' toy hauler. Works fine, has plenty of power to lift the tongue off the trailer hitch even when it is somewhat bound to the hitch ball. Bought a cover to keep it covered and out of the high elevation sun. It sure saves a lot of manual labor fighting with the manual hitch crank. 730284


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  • Wiring Electric Jack to Plug Into 7-Way on Tow Vehicle
  • Although wiring an electric jack like the etrailer.com # EJ-3520-BBX you referenced to a dedicated battery on the trailer is the preferred solution for ensuring you get the needed power, you can indeed wire it to a 7-Way plug like # A7WCB for it to be connected to the 7-Way on your truck when needed. If you don't yet have an electric jack, we actually have a 3,500 pound unit available with the Buyers Products # 3370093500 that is designed to be used this way right out of the box. This...
    view full answer...

  • Electric A-Frame Jack Recommendation for Jayco Jay Flight Travel Trailer
  • For a Jayco Jay Flight travel trailer that weighs 6100-lbs dry you will want an electric tongue jack rated as high as possible to ensure the jack does not have to work too hard; this will help it provide a longer service life. All of our bolt-on a-frame electric tongue jacks are shown on the linked page. These offer varying amount of lift, from 14- to 25-inches. We offer a great-value option in parts # EJ-3520-BBX (black)and # EJ-3520-WBX (white). This jack has 3500-lb capacity, 25-1/8-inches...
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  • Wiring Diagram for RAM Jacks Powered A-Frame Jack Switch part # EJ-3520-PSW
  • I attached a picture that I got from RAM jacks that shows how the RAM Jack switch part # EJ-3520-PSW that you referenced gets wired up.
    view full answer...

  • Replacement Cap for RAM Electric A-Frame Trailer Jack
  • For the replacement cap that will cover the manual override on your Electric A-Frame Jack # EJ-3520-BBX, you will just need the Replacement Cap # EJ-3520-BCP. This will include one cap for your jack.
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  • Recommended Electric A-Frame Jack for Trailer with 5,824 Dry Weight
  • When looking at electric A-frame jacks, the important weight to consider on your trailer is its tongue weight. This is the weight that the jack will actually be lifting and not its total loaded weight. A trailer's tongue weight should be 10 to 15 percent of its total weight. If your trailer has an empty weight of 5,824 pounds, we can estimate a dry tongue weight of around 580 to 875 pounds. Note though that you will want to also account for the loaded cargo weight as well when the trailer...
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  • Can the Electric Jack w/ Footplate # EJ-3520-BBX be Connected to 12V Circuit on 7-Way
  • You can use the 12V circuit on your 7-Way to power the Electric Jack w/ Footplate # EJ-3520-BBX but it is usually best to use a separate 12V battery that is stored on your trailer. Reason being that sometimes the trailer jack needs more power than the 12V wire from your tow vehicle can deliver. Is it possible, yes, but if that isn't enough power you will need to add a battery to your trailer. We do have the Buyers Products Jack # 3370093500 which you can plug right in to your 7-Way...
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  • Recommended Electric Trailer Jack for an A-Frame Trailer With 700 lb Tongue Weight
  • I recommend using the etrailer.com Electric Jack with a Footplate, part # EJ-3520-BBX, for A-Frames. This trailer jack is rated for 3,500 lbs so it will have more than enough power to lift and lower your tongue weight of 700 lbs. This trailer jack has a total lift of 25-1/8 inches and comes with an LED light that shines down towards the coupler to make connecting or disconnecting your trailer in the dark much easier. Another great feature about this electric trailer jack is that it has...
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  • Replacement Switch for Ram Electric A-Frame Trailer Jack-3500 LBS
  • The replacement power switch for your Ram Electric Jack Item # EJ-3520-BBX is Item # EJ-3520-PSW. Links to additional information attached.
    view full answer...

  • Recommended Electric A-Frame Trailer Jack for 2011 Open Range Journeyer 340FLR
  • Tongue jacks are often rated higher than the weight of the trailer tongue they will be supporting. For tongue jack to meet your needs, I recommend the etrailer.com Electric Jack w/ Footplate - A-Frame - 25-1/8" Lift - 3.5K - Black # EJ-3520-BBX. This jack will mount to the same location on your trailer tongue A-frame and will give you a drop leg as well as a really nice LED light on a separate switch to help with connecting or disconnecting. If you want what I consider to be the best...
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  • Determining the Correct Electric Jack for Jayco 22FB Trailer
  • There are no obvious cons to having an electric jack as opposed to a manual jack and most people prefer an electric jack due to its ease of use. As for what electric jack you need for your Jayco 22FB, that is going to depend on the diameter of the jack hole; it will need to accept the outer tube diameter of the jack. For example, the Ultra-Fab Electric A-Frame Jack # UF38-944017 has a 2" outer tube diameter, the etrailer Electric Jack # EJ-3520-BBX has a 2-1/4" outer tube diameter and...
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  • Availability of Wiring Diagram for the Replacement Power Switch # EJ-3520-PSW
  • I am attaching a picture of the Replacement Power Switch # EJ-3520-PSW when it is properly installed on the Electric Jack w/ Footplate # EJ-3520-BBX but unfortunately there isn't a wiring diagram available. If you be mindful to note which position each wire is supposed to be in when you disconnect your current switch you simply just have to install this switch in the same way.
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  • Recommended Electric Tongue Jack For Toy Hauler
  • For your toy hauler, I recommend the Electric Jack w/ Footplate - Drop Leg # EJ-3520-BBX. This jack has a 3500 lb capacity and will lift 25-1/8 inches total. That lift is including a 5-5/8 inch drop leg travel. It has the outer tube diameter of 2-1/4 inches to fit your A-frame's jack hole diameter. If you are interested in a jack that requires less power draw and uses a low-friction ball screw to reduce wear, I recommend the Husky Brute # HT87247. This jack will also fit your application...
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  • Troubleshooting Ram Electric Jack Lights Working But Jack Not Operating
  • If the light on your Ram Electric Jack w/ Footplate # EJ-3520-BBX is working but the jack motor is not actually getting any or enough power to operate, I first recommend checking to make sure the power source is good. Make sure the battery you are using is fully charged and in good condition. If the battery is good, check to make sure you have a solid ground connection to a clean, bare metal surface. A weak ground might be allowing for just enough power to reach and power the lights, but...
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  • Powered A-Frame Jack Recommendation for 2017 Keystone Passport 2670BHWE
  • My favorite powered jack to recommend is the Husky Jack part # HT87247 as it has bearings in the screw which allow it to operate quicker and smoother. It also shuts off automatically before topping or bottoming out. Other jacks will allow you to go too far with the jack but in doing so you damage the threads of the screw. It has a lifting capacity of 4,500 lbs which would be more than you'd need but will ensure that the jack will operate quickly and last a long time. If you are considering...
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  • Troubleshooting Ram 3,500 lb Trailer Tongue Jack Working Intermittently
  • I reached out to my contact at Ram and he said that their electric jacks, like part # EJ-3520-BBX, # EJ-3520-WBX, or # EJ-3527-BBX have one fuse and it is located on the black wire where it enters the housing. From what you described I believe your problem is a bad ground. These jacks ground through the mounting hardware so if the connection isn't solid and constant it can cause the issues you are having. What my contact recommended doing was taking some of the paint off of the trailer...
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  • Fuse Location on etrailer.com Electric Jack # EJ-3520-BBX
  • On the etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX that you referenced the 30 amp barrel fuse like # EJ-FUSE is located in a flared opening right where the black power wire comes out of the motor housing. It is very easy to access and replace if the need arises. I have attached a short video demonstration on this jack that you can check out as well.
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  • How to Replace Power Switch on RAM Electric Jack w/ Footplate
  • It sounds like you have either the Electric Jack w/ Footplate part # EJ-3520-BBX or the Electric Jack w/ Footplate part # EJ-3520-WBX. If that is the case then the Replacement Power Switch part # EJ-3520-PSW is the correct replacement for you. In order to replace the switch you need to take a flathead screwdriver or pick and pry the top and bottom of the switch to release it from the housing. You can then unplug the spade connectors from the old switch and into the new switch making sure...
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  • Availability of Wheel to Use on etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX
  • The etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX referenced in your question features an inner tube diameter of 2 inches. With this in mind, the Replacement Heavy-Duty 6 Inch Caster # BDCP555 will work well to replace the footplate on the jack, since it is designed to fit 2 inch jack tubes. Keep in mind though, that when using the wheel on your jack, its 3,500 pound capacity will be reduced to the 1,500 capacity of the wheel. This is simply because the trailer jack will be limited...
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  • Replacement Housing Assembly for etrailer and Ram Electric A-Frame Jack
  • Yes we do! The replacement housing assembly for Electric Jack # EJ-3520-BBX is the Replacement Cover, Cap, and Lens for etrailer and Ram Electric A-Frame Jacks # EJ-3520-BCV.
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  • Replacement Parts Available for the eTrailer Electric Jack with Footplate
  • If you are referring to the Electric Jack w/ Footplate part # EJ-3520-BBX for black or part # EJ-3520-WBX for white then yes, we do have the correct replacement extend/retract switch and for this you will want to use the Replacement Power Switch for RAM Electric Trailer Jack part # EJ-3520-PSW. We also have several other replacement parts which I have attached for you below. Replacement Light Switch for Electric Trailer Jack with Footplate - part # EJ-3520-LSW Replacement Cap for Electric...
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  • Does etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX Have Fuse
  • Tthe etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX that you referenced has a 30 amp barrel fuse like # EJ-FUSE which is located in a flared opening right where the black power wire comes out of the motor housing. It is very easy to access and replace if the need arises. Hopefully it's just a fuse that blew and you didn't damage the threads of the screw which is common when over extending powered a-frame jacks.
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  • Recommended Electric A-Frame Jack for 2006 Eclipse Attitude 21AK Travel Trailer
  • When selecting a powered tongue jack for a travel trailer like your 2006 Eclipse Attitude 21AK it is best to over-spec the jack, meaning to select one that has more weight capacity than you absolutely need for the trailer. The Attitude 21AK has a specified weight of 6100-lbs so I suggest a tongue jack rated for 3500-lbs. This will let the jack work less hard to do the lifting it needs to do and that tends to help such items last longer. If value is a key factor in your decision go for...
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  • Can 7-Way 12V Power Feed Operate High-Capacity Electric Winch
  • The 12V power circuit in standard 7-way trailer wiring is typically limited to about 30-amps current. This is enough to operate a trailer's electric A-frame tongue jack, like # HT87247 or # EJ-3520-BBX, but it may not be even close to the power needed by a high-capacity winch. For instance, the Bulldog Trailer Winch # BDW15020, rated for 4400-lbs, will draw at full load well over 300-amps of power! This requires a dedicated trailer-mounted winch battery of at least 650 cold cranking...
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  • Replacement Fuse for etrailer.com Electric A-Frame Trailer Jack
  • The etrailer.com Electric Jack w/ Footplate # EJ-3520-BBX has a 500V 30 amp fuse that is a bus style fuse. You can use the Replacement Fuse for etrailer or Ram Electric A-Frame Jack - Qty 1 # EJ-FUSE if that fuse goes bad.
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  • Capacity Needed for A-Frame Trailer Jack On 6,200 Pound Camper
  • An electric A-frame trailer jack like the etrailer.com # EJ-3520-BBX that you were looking at just needs to be able to lift a trailer's tongue weight. The tongue weight of a trailer should be around 10 to 15 percent of its total weight, which likely puts the tongue weight of your 6,200 pound trailer at around 620 to 930 pounds. With this in mind, a jack like this that has a 3,500 pound lift capacity is more than enough and will work great. It's always a good idea to use a jack that...
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  • Best Value Electric Trailer Jack For Toy Hauler Trailer
  • The etrailer.com electric jacks part # EJ-3520-BBX and part # EJ-3520-WBX are the most valuable option for your money. The etrailer.com jacks are manufactured by RAM industries which is a very dependable and well known trailer jack manufacturer. They also will provide you with 28-1/2" of lift with 3.5K capacity and smooth operation and they feature LED lights that allow you to hook up your trailer more easily at night.
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  • Can etrailer.com Electric Jack Be Rotated to Allow Clearance for Truck Tailgate
  • The motor housing on the etrailer.com Electric Jack # EJ-3520-BBX can't by itself be rotated but you could certainly spin the entire jack around on the trailer since the mounting holes are asymmetric. This should hopefully give you the needed clearance to drop your Ram's tailgate. Another option is to leave the jack how it's installed and replace your existing ball mount with a longer one such as the Curt # D-26 that measures 12-5/8 inches from the center of the pin hole to the center...
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  • Replacement Cover for RAM 3,500 lb Electric A-Frame Jack
  • If your RAM jack has the same design as the 3,500 lb etrailer.com jack # EJ-3520-BBX (a rebranded RAM jack), then the replacement cover is part # EJ-3520-BCV on our site.
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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Jacob T
Installed by:
Cole B
Installed by:
Randy B
Updated by:
Sarah W
Updated by:
Hannah L
Updated by:
Mike S
Written by:
Amanda M
Video by:
Zach D

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