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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

Mike L.
12/11/2025
Thank you, we're glad we could help!!

Victoria H.
3/14/2025
That's awesome Eric! We're so happy to be your go-to and appreciate your business!

Victoria H.
3/14/2025

Gwendolyn Y.
10/14/2024
Hey Walter. Sounds like a let down for sure. I do see that one of our customer service reps got a replacement out to ya. If you have any issues at all with the replacement, let me know and I can take care of it for you.
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Mike L.
1/5/2026
I'll get that taken care of for you.