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When a trailer sits for weeks or months, standard hydraulic jacks can slowly retract and drop the tongue. This hydraulic jack solves that problem with an integrated counter balance valve that eliminates drift and retraction while stationary. It keeps the trailer at the height you set, making it ideal for seasonal storage or long-term parking without constant readjustment.
Heavy trailers need real lifting muscle, and this jack delivers. With a 12,000 lb lift capacity and 15,000 lb support capacity, it raises and stabilizes large setups with ease. The 24-1/4" lift and 34-7/8" retracted bracket height give plenty of range for leveling or coupling. The hydraulic system operates smoothly even under load, so raising a full trailer feels effortless every time.
Level ground isn’t always an option, but this jack handles it. The heavy square tube design and wide 10" x 10" footplate provide a solid foundation, while the pivoting pad adjusts to uneven terrain. That stability translates to less sway and more confidence when loading, unloading, or storing on gravel or dirt surfaces.
Rain, dust, and sunlight are hard on exposed metal, but this jack’s exterior-grade black finish keeps corrosion at bay. It resists wear from weather and road debris, maintaining smooth operation and a clean look. The robust construction is heavier built than many factory jacks, giving lasting performance in demanding conditions.
Swapping to this jack doesn’t mean starting from scratch. The bolt-on mounting tabs (7-1/2" x 4") align easily for installation, and it connects directly to existing hydraulic setups with two 9/16-18 #6 SAE JIC 37° flare fittings—one for the retract port and one for the extend port. It pairs with systems offering up to 3,200 psi extension and 1,500 psi retraction pressures, making it a straightforward upgrade to stronger, steadier hydraulic control.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everyone. Steve here with etrailer.com. Today, we're looking at our very own etrailer hydraulic jack with the integrated counterbalance valve. Now this is considered a right leg square two bolt-on jack rated at 12,000 pounds. Now again, it's a right side or street side jack leg. It's gonna work with your existing hydraulic setup, so you're gonna need a hydraulic pump and power unit E43VV, and a left, or curbside leg, E83VV sold separately if you don't already have them.
Now, this is gonna work great with units offering up to 3,200 PSI extension and 1,500 PSI retraction pressure. Now, it has a built-in integrated counterbalance valve that's gonna eliminate drift and retraction. Right here is where you'd hook up all your hydraulic lines. I'll just twist one of these off for you to see, and the other one twists off as well. Now, these are great for seasonal trailers and again, that counterbalance valve eliminates drift and retraction.
This will give you a smooth and effortless operation, even for those heavy loads. And the foot pad down there, I've got wedges in it to keep it from falling over, 'cause this is really super heavy. But this can actually pivot like so, if I we inchesre to take those wedges out, and it can pivot pretty far both ways. So it does have that pivoting foot pad. That foot pad is a 10-inch by 10-inch foot pad.
It's gonna be great for stabilizing you on uneven surfaces. The design here is a square tube design. These mounting plates here and here, these are seven and a half inches long by four inches tall. Now, the lift capacity is 12,000 pounds, while the support capacity is 15,000 pounds. Now, the jack screw that's inside here, making it go up and down, that has a screw travel of 24 and one quarter inches.
As you can see, it's got a nice, durable black powder coat finish all the way around. It's gonna give you great corrosion protection, resistance, those kinda things. And it is an easy bolt-on application with those mounting plates as well. Well folks, I think that's gonna wrap it up for our quick look together at this etrailer hydraulic jack. I'm Steven. Thanks for watching and as always, stay safe while you're towing.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
All good
Very poor package not all parts came with it savers and bolts all lose in box
The jack shipped quickly, but the packaging was inadequate, leaving it vulnerable during transit. The main issue is the misleading claim about the counterbalance valve. It only prevents drift when extended, not during transit, which is a key safety concern. A proper counterbalance valve should lock in both directions. I plan to test it further and hope to make it work with modifications, but buyers should know the limitations upfront. For the low price, it’s worth trying to salvage.
It’s working real good
Everything was exactly the way I wondered it Thanks
Gets the job the done at a slower pace.
Great option for a heavy duty, easy to use jack. Was easy to customize to fit our application. Will be buying more of these for our customers.
Very pleaeed
This is our 4th one of these jacks, we put them on all our trailers and they work great.
The product itself is good this is my second Ram jack. Unfortunately like others I received the package severely damaged.
Working Awesome
Love the jack, but, it came without a box. Only a piece of it was left. Some parts missing because box was non existent.
I just bought two more, so they save some time. Boxes were destroyed as other reviews say... Have not been home to see if the product is damaged/
etrailer has great parts and even better service their staff is amazing!
Very Good Product Works Very Well, The Guys at ETRAILER WERE VERY PROMPT AND PROFFESSIONAL. The Only Gripe I have is the Shipping package by the time it got to me the cardboard packaging was tour all to h***LL. I was worried that the fittings were broke off, But they were OK. Other than that COMPLETLY SATISFIED.
The jack is great. The lightweight shipping box is a disaster. Thankfully the jack wasn’t destroyed when it arrived, only the cardboard box was torn into shreds and no instructions were to be found. Also, check e-trailer’s pricing. I watched the price change in the web site literally every time I looked it up, sometimes changing twice daily. There was a $[xx] price swing between when I bought it, and the dozens of times I checked price before purchasing.
It is a great trailer jack.
Item shipped super fast and was heavy built and was actually heavier built than oem jack. Thanks a lot for the great service.
Product looks ok so far , its box was in very bad shape. Looks like it thrown and dropped a few times .
I only received one leg ?
Is second one shipped separately?
Do you have a question about this Trailer Jack?
Info for this part was:
At etrailer 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.
Mike L.
1/5/2026
I'll get that taken care of for you.