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This is the right, or street-side, leg for hydraulic trailer jack setups that use side-specific port positioning. The hydraulic connections are arranged differently from the matching left-side leg (e83VV - sold separately), so choosing the correct side helps keep hose routing and installation where your system expects them.
Loaded equipment, livestock, and commercial trailers can put a lot of weight on the tongue. This leg provides 12,000 lbs of lifting capacity and 15,000 lbs of support capacity, letting hydraulic power handle the hard work. Its 24-1/4" lift gives you plenty of movement for hitching, unhitching, and adjusting trailer height.
A hydraulic jack can become frustrating if the trailer slowly settles while it sits. The integrated counter-balance valve helps lock the leg in position after adjustment, reducing hydraulic drift and keeping the trailer at the height you set during storage, loading, or extended parking.
This is a hydraulic jack leg rather than a self-contained system, so it requires a compatible external hydraulic power unit, hoses, and controls. The lower 9/16-18 #6 SAE JIC 37-degree flare port powers extension at up to 3,200 psi, while the upper port powers retraction at up to 1,500 psi. A compatible power unit such as e43VV is sold separately.
The leg does not have its own manual override, so backup operation depends on the hydraulic power unit used with it. If two legs are operated together, a flow divider is strongly recommended to help keep their movement synchronized.
The 10" x 10" footplate spreads the trailer load across a large contact area and pivots as the jack moves, helping it sit more naturally on uneven gravel, dirt, or pavement. The square-tube leg uses two 7-1/2" x 4" mounting tabs for bolt-on installation, while the exterior-grade black finish helps protect the exposed steel from weather and road use.
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.