bing tracking image
  1. Trailer Jack
  2. Stillwell
  3. Dump Trailer
  4. Enclosed Trailer
  5. 5th Wheel Trailer
  6. Gooseneck Trailer
Atlas IV Vaquero Self-Contained Hydraulic Tandem Jacks - 26" Lift - 20,000 lbs - Bolt On
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Stillwell

Atlas IV Vaquero Self-Contained Hydraulic Tandem Jacks - 26" Lift - 20,000 lbs - Bolt On

Part Number: ST27VR
$1,897.00
Trailer Jack
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Upgrade a large livestock, equipment, or gooseneck trailer with two 10K hydraulic jack legs powered by one self-contained HPU. The tandem system gives you 20,000 lbs of combined lift capacity, 26" of lift, and two 12' connection hoses. Great Prices for the best trailer jack from Stillwell. Atlas IV Vaquero Self-Contained Hydraulic Tandem Jacks - 26" Lift - 20,000 lbs - Bolt On part number ST27VR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (1)
  • Q & A (0)
  • Videos (1)
  • Photos

Stillwell Trailer Jack - ST27VR

  • Dump Trailer
  • Enclosed Trailer
  • 5th Wheel Trailer
  • Gooseneck Trailer
  • 10001 lbs or More
  • Hydraulic Jack
  • Bolt-On
  • Side-Mount Jacks
  • With Rectangle Foot
  • 26 Inch Lift
  • Stillwell

Upgrade a large livestock, equipment, or gooseneck trailer with two 10K hydraulic jack legs powered by one self-contained HPU. The tandem system gives you 20,000 lbs of combined lift capacity, 26" of lift, and two 12' connection hoses.


Highlights

  • Two Jack Legs, One Hydraulic Power Unit: Vaquero lead jack powers the dependent follow leg from one self-contained system.
  • 20,000-lb Combined Lift Capacity: Two 10K Atlas legs support larger livestock, equipment, and gooseneck trailers.
  • Balanced Tandem Operation: Included hydraulic connection kit lets both legs operate together for smooth, coordinated lifting.
  • Connection Kit Included: Two 12' high-pressure hoses and adapters connect the lead and follow legs.
  • Manual Backup at the Power Unit: SJP-320 HPU includes manual extend and retract functions for loss-of-power situations.
  • Universal Bolt-On Brackets: 7" x 20" mounting plates give you multiple positions without requiring a weld-on installation.

Made in USA

Features to Know About

Two Hydraulic Legs Powered by One Vaquero System

Large livestock, equipment, and gooseneck trailers can benefit from two lifting points, but that doesn't mean you need two separate hydraulic power units. This setup pairs a self-contained Vaquero lead jack with a dependent Atlas follow leg, giving you 20,000 lbs of combined lift capacity from one hydraulic power source.


Each jack provides 10,000 lbs of lift capacity and 26" of lift. The follow leg runs from the lead jack's hydraulic system and is not designed to operate independently.

Tandem Plumbing Is Included

The included connection kit ties the lead and follow legs together for balanced, synchronized operation. Two 144" (12') high-pressure hydraulic hoses give you room to route the lines between the jacks, while the included adapters and connection fitting complete the tandem hookup.


Because the Vaquero lead jack carries the hydraulic power unit, you don't need a separate trailer hydraulic pump just to operate the jacks. The system still requires hydraulic plumbing between the two legs and electrical power for the Vaquero HPU.

Built for Heavy Trailers and Backup Operation

Both Atlas legs use bolt-on mounting plates that measure 7" wide x 20" tall, with mounting holes spaced approximately 2" apart vertically. That gives you multiple mounting positions without committing to a direct-weld installation.


Glide bearings inside the Atlas legs help prevent steel-on-steel tube contact during repeated operation. If electrical power is lost, the SJP-320 power unit also provides manual extend and retract functions using a 1/4" hex-bit drill or driver.

Specs

Capacity and Lift:

  • Jack quantity: 2
  • Lift capacity:
    • 10,000 lbs per jack
    • 20,000 lbs combined
  • Lift: 26" per jack

Hydraulic System:

  • Configuration: single-pump tandem system
  • Lead jack: self-contained Vaquero with integrated HPU
  • Follow leg: dependent Atlas hydraulic jack
  • Power unit: SJP-320
  • Working pressure: 3,000 psi
  • Operation: hydraulic extend and retract
  • Manual override: built into SJP-320 power unit
    • Manual extend and retract functions
    • Operates with 1/4" hex-bit drill or driver

Included Tandem Connection Kit:

  • (2) 144" (12') high-pressure hydraulic hoses
  • (2) 90-degree hydraulic adapters
  • (1) Additional connection fitting

Mounting:

  • Mount style: bolt on
  • Mounting bracket: 7" wide x 20" tall
  • Vertical hole spacing: approximately 2" on center

Construction:

  • Glide bearings help prevent tube-to-tube wear

Warranty:

  • 2-year limited warranty


SJ001B5DEM4 Stillwell Atlas IV 10K Hydraulic Trailer Jack with Vaquero Bracket

SJ001B5DEM4VQ Stillwell Atlas IV 10K Hydraulic Trailer Jack with Vaquero Package

02002-9001-0079 Stillwell Hydraulic Jack Hose and Adapter Kit (Tandem Vaquero)

Installation Details ST27VR Installation instructions



Video of Atlas IV Vaquero Self-Contained Hydraulic Tandem Jacks - 26" Lift - 20,000 lbs - Bolt On
Video Thumbnail Video Player Dialog

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




Video Transcript for The Power Behind Stillwell Hydraulic Jacks: Manufacturer Interview

Hello, neighbors. It's Brad here from etrailer, and today, I'm at NATM. And this convention brings a lot of the vendors that we have at etrailer to a convention where we have their booths and their products set up. I had a chance to catch up with quite a few of 'em, so let's take a look at their products a little bit up close and ask some of the questions to those vendors about their products. I'm here with Taylor from Stillwell, and Taylor, what is Stillwell Stillwell is a domestic manufacturer for the trailer industry. Our primary focus is hydraulics.

We've been doing that for nearly the last two decades. We have facilities in Minnesota and Texas and trying to bring as much manufacturing back to the US as we possibly can. Beautiful. So as far as hydraulic jacks, you guys have a few offerings here Yep. What do we have So this one here is our Vaquero.

It's a 10,000 pound lift capacity self-contained unit for primarily horse trailers. We've seen it in a wide variety of applications from the vacuums on Ditch Witch, generator trailers in the oil fields and the tilt trailers that a lot of these customers use in just your equipment and utility space. Brad So tons of different applications. Yep, if we keep moving down the line, we have two different just height options for our Atlas jack. This one is the 20 inch used on a lot of low profile dump trailers.

Super easy tie-in application using some of our proprietary valving. And then we also have a 26 inch option, which is better for your gooseneck trailers. Gives you a little bit more of that extra pipe and travel for those lifted trucks. You know, our industry, they like them a little bit taller. Absolutely.

Now, if someone wanted to add this to one of their trailers, what would they need to do to make sure that your application fits theirs So typically, one of the things we'll do is we'll walk through the current installation process that the manufacturer has, so whether it's bracketed on, welded on, and that'll start to drive the conversation to finding the right solution for you. So, we work with a lot of the OEM manufacturers, so we try to make it as easy as possible with bolt-on applications, plug and play as much as possible. Brad You bet. As far as hydraulics go, we manufacture a wide variety of valving to tie the jacks into the system. So, this one being our dual selector valve is designed to use the existing hydraulics on the dump trailer and allows you with just a flip of this switch to go back and forth between the dump bed and then a hydraulic jack in the front. The original cast iron screw valves, the number one complaint is that they leak, but it's how they work. Like, that's how they're designed, leak. So we came out with a zero leak. It doesn't hydro lock the way that a valve typically would and that's what sets us apart because we we inchesre able to solve both problems. So, it's easy to use. So all the pressure that it takes for me to turn this right now is all it takes under load, versus with the screw valves, that design, because otherwise they'd freeze up and you wouldn't be able to actuate them. So that's where we designed this, but then we provide that to everything about a trailer. So this is our 3-way ball valve. It's designed for the tilt trailers and it's similar application. It's, you lock the system, the trailer's not gonna move. You open it up and now you're able to actually typically grab the tilt. Moving down to one of the other ones, so The Cube here is what is used predominantly on the gooseneck trailers and it's dual flow dividers, dual PO checks so it locks the load in place, makes sure that the flow is even going out and coming back in. And then sure that those jets move in tandem with each other with little to no delay. We also manufacture all of our hydraulic lines out of our facility in Texas, so everything is cut and print, made to order. These have four to one safety factors, so they are designed with safety in mind and again, we adhere to all of your standard SAE qualifications for it. And they're designed to be an easy plug and play with all of our other hydraulic systems. We've standardized all of our adapters to be the same size between the jacks, the cylinders, the valving, so that it's as simple as possible for the end user. For the most part, everything can be completely installed with one wrench. Brad That's awesome. Taylor That's the goal. Now, hydraulic lines, obviously, you don't want damage to those. It's gonna cause a whole lot of issues and a lot of that is setting up the trailer to where you're not gonna have road hazards causing any issue. And so, managing those lines is important, and you guys have a solution for that. Yeah, yeah. So because we've worked with so many different manufacturers and they all weld rings to the trailer, you have to run every hose through, we decided we need to make that easier for one, the manufacturer, and two, for the service after the fact. And so, we came out with these hose clamps here. They're designed to be a peel and stick application. That way, you're not having to run the hose lines through a ring underneath the trailer every three, four feet. They're really easy design. They use VHB tape. So you can just peel the backing off here, and then when you're ready to run your lines, you've got everything figured out. It just fits in there nicely and clamps shut. Yeah, that tape is no joke, too. So if you're worried about an adhesive not holding onto the frame of your trailer, I'm here to tell you it will. It absolutely will. It's super strong. Yep, and everything we do has got a glass field nylon, so it's hardened. It's designed for the road. It's gonna hold up. You could drive over these with your truck and nothing's gonna happen to them. Yeah. That's the way that it's all designed and we put a lot of thought and engineering into the actual use of the product and so we designed it around the trailer. We like to say around here that we don't wanna build the trailer around the products available. We're gonna build the products to build the best trailer. Flip the script on it. I love it. Yeah, awesome. Well thank you, Taylor, for taking the time to break down Stillwell and some of their offerings. Look like fantastic products. Yeah. And I'm excited that etrailer has them. So thanks again, Taylor. Yeah. Appreciate it. Appreciate it, Brad. Thank you so much.

Customer Satisfaction Score:

Ratings & Reviews

4.0

1 reviews
5 Stars
(0)
4 Stars
(1)
3 Stars
(0)
2 Stars
(0)
1 Star
(0)
Review Sort Icon
by:
1
1
true

See what our Experts say about this Stillwell Trailer Jack

  • Can I Wire 2 of the Atlas IV Vaquero Self-Contained Hydraulic Trailer Jacks Together?
    Hello Jake, Great question. I have a better option for you instead of wiring 2 of the Atlas IV Vaquero Self-Contained Hydraulic Trailer Jack - Bolt On - 10K # ST45FR, instead you can get the Atlas IV Vaquero Self-Contained Hydraulic Tandem Trailer Jacks - Complete Set - 20K # ST27VR. This will come with the # ST45F but will also give you the lines you need as well as the follow leg. I checked the part numbers and the # ST27VR will have the remote as well. What kind of trailer are you...
    view full answer...

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Dustin K
Video Edited:
Dustin K
Employee Alexander C
Updated by:
Alexander C
Employee Alex H
Updated by:
Alex H
Employee Kim H
Written by:
Kim H

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.