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⚡ Power up your trailer game with RAM’s unstoppable electric jack!
The RAM Trailer Products EJ-3520-BBX is a 3,500 lb. electric trailer jack featuring a bright LED light for night use, durable hardened steel gears for long-lasting performance, and a 12V battery setup with manual crank backup. Its 18-inch travel height plus a 7.5-inch drop leg adjustment offers versatile leveling, all wrapped in a weather-resistant black powder-coated steel design.





| ASIN | B01LDS3KWM |
| Best Sellers Rank | #185,647 in Automotive ( See Top 100 in Automotive ) #463 in RV Jacks & Stabilizers |
| Brand | RAM MOUNTS |
| Brand Name | RAM MOUNTS |
| Color | Black |
| Compatible with Vehicle Type | Trailer |
| Customer Reviews | 4.4 out of 5 stars 1,884 Reviews |
| Global Trade Identification Number | 00813431010261 |
| Included Components | RAM EJ-3520-BBX 3,500 lb. Electric Trailer Jack with Drop Leg |
| Item Dimensions | 31.5 x 10 x 7 inches |
| Item Type Name | Electric Trailer Jack with Drop Leg (3500 lb.) |
| Item Weight | 23.9 pounds |
| Load Capacity | 3500 pound |
| Manufacturer | RAM |
| Manufacturer Part Number | EJ-3520-BBX |
| Material | Steel |
| Material Type | Steel |
| Maximum Lifting Height | 18 inches |
| Minimum Height | 9 inches |
| Model Number | EJ-3520-BBX |
| Number of Items | 1 |
| Style Name | Trailer Jack |
| UPC | 813431010261 |
| Unit Count | 1 Count |
| Vehicle Service Type | Trailer |
M**E
I would recommend for smaller campers
Okay, got this a little over a year ago and figured its time to write a review for it. The install was very easy since I have all the tools needed and some mechanical knowledge. Connecting it to the batter on the camper was easy as well as it connects to the hot (red, positive), side of the battery. It grounds to the frame of the camper with the star washers that are supplied. Now it works great for up and down. But sometimes I feel that it gets a little shaky when raising it up to connect to my truck. Just seems to want to wobble just a little. I have tightened the bolts several times but I think it could actually use a little thicker metal around the base that connects to the camper. I like the light that is on it although I don’t use it. The motor isn’t real fast and sometimes it acts like its straining but works well enough. My camper is 3200lbs and this is only rated at 3500 so that may be the issue. Not really sure how weather resistant it is, as I keep a 5-gallon bucket over the top to protect it from the weather when its not being pulled. Over all good product and I would recommend it to friends and family.
C**C
Easy Installation, Works GREAT, Makes it easier for anyone in the family to hitch and level our RV!
GREAT Jack for the Money! Quiet, Fast enough, LOVE the light option to light up area for hitching Day or Night. Really easy installation it took about 25 minutes from opening the box and backing up the tow vehicle to hold the weight while switching jacks, to up and running. The part that took the longest was getting the positive wire to the Battery exactly the way I wanted it (NOTE: there is no need for a negative wire so you will not have one as the unit is self-grounded with the star washers which cut into the paint enough to make a ground connection). Things to Check: *Make sure you check to be sure the jack required for your trailer is the triangular one (where the jack is mounted to the trailer frame) w/ 3 bolt holes as some trailers only accommodate a round one requiring a different Jack. *I replaced a 5,000limit manual Jack with this 3,500 Electric one - plenty of power for the job - Our 26' RV trailer has a 2,000 hitch weight limit on the trailer tongue so this still gives 1,500lbs of extra capacity if the trailer weight up front is totally maxed out which would be impossible. *I drilled a small hole in the side of the battery box closest to the positire terminal to pass the positive wire through so the wire is not pinched by the battery box top.
G**D
Resiliant Jack!
I ordered and installed this jack with nothing but ease! It came with all the hardware needed for a plug and play installation, and it took me all of 15 minutes to pop off the old manual jack, and install this one. The light is nice if you are hooking up or unhooking at night! The jack moves up and down very smoothly with the push of a button, and I have many friends looking into getting this for their trailers! All this being said, in all of my genius, with the jack retracted all the way up, and everything as it should be, I pulled out of a very steep car wash driveway at a bad angle, and ended up bottoming out the jack. Despite going slowly, it managed to slam the jack forward, bending the coupler it was attached to! Apparently this happens fairly often to people who are new to towing trailers! that being said, the main takeaway I have for those who question this product, is that even with it bent, and once we were able to bend it back straight, the jack STILL functioned normally with the buttons, allowing me to transport the trailer to our storage yard until the new one comes in in the mail, and I have the appointment to have the coupler replaced. Even with the console of the unit smashed, I was still able to operate the jack electronically with the buttons! If you're looking for a cost effective way to make your trailer set up and tear down easy, this is the jack for you!
C**S
A bit of a problem to install...
This was a replacement for a failing jack on my 28' Outdoor Research trailer. The trailer, loaded, is about 10K lbs. Once installed, the jack worked fine - after I had to fix two different issues: First, the holes in the tongue top and bottom plates were not the same size. The lower hole was just a bit smaller so I had to file it for about 20 minutes to widen it so the jack would slip all the way down. Second, once wired in, the jack wasn't getting power to the head unit. I traced the problem to the fuse holder supplied with the jack just below the head. The plastic molding around the fuse contacts had gotten inside the contact and wasn't making connection. I tried scraping the plastic out but was unable to make it work. So, I cut out the fuse and used the original fuse holder for the original jack instead. Once those issues were resolved, the jack worked fine. Pros: > I like the fact that the foot has multiple holes in it to raise or lower the foot height. My old one did not do that. > The jack appears to have plenty of power to raise the trailer. It seems a bit slower but perhaps not. > It as a built-in LED light Cons: > Overall, the jack is made of lighter tubing and steel than the original. Hopefully it will be sufficient under stress. > The positive wire feeding the jack is 1 or 2 smaller gauges than the original. Time will tell if this jack will hold up to frequent use and stress.
A**R
Great electric jack
So far, so good. We bought this one to replace ours that decided to quit working.
M**S
Simple and straightforward
This is a simple and straightforward replacement for a manual or power a-frame mounted trailer jack. It requires only a hot power lead. It is mounted with three bolts. The only thing to remember is to place the foot extension in place so that the jack lowers onto it; you probably won’t have room to put it in after you bolt the jack in place.
G**N
Excellent, so far.
I have only had this for 2 months, so I can only report immediate results -- not long-term wear. So far it has proven a very capable jack. I installed it myself in a few hours, and it worked well from the start. It raises and lowers faster than I would have expected, and beats the heck out of cranking. Also, the leg cotter pin is intelligently designed so to be easier to use than some. From experience, I know that moisture getting into the unit can be fatal to it, so if you buy this, for longest life, you will probably NEED a waterproof cover -- I would recommend the BougeRV 600D Universal Trailer RV Electric Tongue Jack Protective Cover (Size 14″H x 5″W x 10″D) which fits this perfectly and is also available on Amazon for about $10. Also, if buying this jack, I would recommend getting the 4-year protection package. It's a pricey (but very useful) item, and, for the small cost difference, you'll want to be sure to get at least 4 years out of it without having to buy another.
K**R
Everything was fine until yesterday
Everything was fine until yesterday. Product arrived quickly, installation was a snap. Worked perfectly. Yesterday I started to prepare our travel trailer for the holiday week coming up. The jack would retract but now lower. Battery good, fuse on unit good, but the motor will not lower the jack. I am now in the process of tracking down their customer service department to check on warranty info. In the mean time I still have to get ready for vacation and their is no way of getting a replacement before I leave. For your information a 7/16 socket with a half inch corded drill will raise or lower the unit. So disappointed UPDATE: After returning from vacation I was able to contact PSE Jacks by e-mail. They responded immediately and are sending a replacement jack tomarow . I do not have to return the bad jack. This is excellent customer service and I would expect no less from an Amazon vendor, Hopefully I have better luck with the replacement.
A**R
Works great!
This electric trailer jack was easy to install. As many have commented, it is slow, but it does the job with ease. I absolutely love it. I would recommend it to anyone who has a travel trailer and is sick of manually cranking up and down the trailer.
S**T
Easy and fast install. 5 minutes but I took my time.
Love it even though it’s slower than cranking. The only red wire can be temporarily bolted under the current connection till I take the time to attach a ring. ;) Be careful not to go past the indicated point ( stuck on label, lol ). The grease will mark this spot after the first couple moves. The arrows on the switch indicate which way it will raise or lower not…. The light shines down as well. Happy camping!
W**L
Products that work
Easy to install but the ram is a little on the slow side when raising or lowering but overall works well.
L**C
Awesome
Bolted right in, does not come with new bolts, but thats minor. Like the light, comes with a handle for manual operation. Jacks my camper up just fine. Like the drop plate as well. I have no issues with the speed, its maybe no faster than I could crank it before, now I just hold the button. Love it.
P**R
qualité
Produit arrivé selon la prévision, propre et bien emballé. Produit robuste, facile d`installation. S`utilise très bien. Très satisfait de mon achat
Trustpilot
2 weeks ago
3 weeks ago