Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs

Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs

Item # BD175000

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Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs Standard A-Frame Jack BD175000
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In Use/Installed

  • A-Frame Jack
  • 5000 lbs
  • Topwind Jack
  • No Drop Leg
  • Standard A-Frame Jack
  • Bolt-On
  • Weld-On
  • Bulldog
  • 15 Inch Lift
  • No Wheel or Foot
Ideal for multiple agricultural and commercial applications, this standard A-frame jack features a 12" retracted height and measures 14-3/4" from the top of the bracket to the top of the handle. Base not included. Lowest Prices for the best trailer jack from Bulldog. Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs part number BD175000 can be ordered online at etrailer.com or call 800-298-8924 for expert service.

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  • Q & A (5)
  • Videos (2)
  • Photos
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Bulldog Trailer Jack - BD175000

Ideal for multiple agricultural and commercial applications, this standard A-frame jack features a 12" retracted height and measures 14-3/4" from the top of the bracket to the top of the handle. Base not included.


  • Dependable jack is recognized as industry standard for agricultural and commercial applications
    • ASABE compliant
  • Precision-fitted parts provide exceptional stability and reliability
  • Weld-on/bolt-on bracket mounts to any standard A-frame coupler
  • Topwind handle has smooth, ergonomic design for easy cranking
    • Handle can be rotated over to feature a stowed position
  • Outer tube is gray-paint finished
  • Inner tube has a clear zinc coating
  • Footplate or caster assembly not included - drilling is required to install


  • Bracket height
    • Retracted: 12"
    • Extended: 27"
  • Total lift: 15"
  • Clearance: 14-3/4" from top of bracket to top of handle
  • Inner tube diameter: 2"
  • Outer tube diameter: 2-1/4"
  • Handle radius: 6-5/8"
  • Lift capacity: 5,000 lbs
  • Static capacity: 7,000 lbs
  • 5-Year limited warranty

175000 Bulldog A-Frame Jack - 5,000 lbs - Top Wind

BD175000 Installation InstructionsInstallation Details BD175000 Installation instructions

California residents: click here

Video of Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs

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

Video Transcript for Bulldog A-Frame Top Wind Jack Review

Speaker 1: Today we're going to be taking a look at the Bulldog A-Frame Trailer Jack, the part number is BD175000. Now this Bulldog jack is going to be a really great solution for most A-Frame trailers. It has a 5,000 pound lifting capacity and a 7,000 pound static capacity, which means 7,000 pounds would be the maximum force that you want to put downward on the jack. But overall it's going to be a nice sturdy jack to use. I like the top wind design. Essentially, this is going to give us a direct connection to the screw inside that raises and lowers the jack.

Now the top wind design as compared to the side wind or the side crank style handle, is going to alleviate a lot of moving parts. We're not going to have the side gear or the base gear to turn and maybe fail over time. This gives us that direct link and it's going to give us good reliability and dependability when we go to use it.Now let's get a quick measurement here on the handle. Basically from the very outside edge to the center it's going to be about seven and a half inches. From the center here to the center of the handle it's about six and five eighths.

You just want to make sure that you have clearance for that. Our handle will work at a slightly elevated angle, but of course in this position we're going to reduce our leverage a little bit. If you do have a tighter space, it might still work, but it might be a little bit harder to crank it.Now the handle is going to be a fully rotating handle, so you don't have to let it slip inside of your hand. It's got good grip texture on the outside. You're able to get a good hold on it and unlike some of the side wind jacks, I don't think you're going to have to worry about your hand slipping off.

Now the exterior of the outer tube is going to have a painted finish. This will allow you to color match your trailer if you choose to. To keep it from corroding over time all of the components here on the handle, with the exception of the plastic of course and the inner tube of our jack are going to be fully zinc coated so we don't have to worry about that rusting and corrosion.Here's our jack fully extended. As you can see it gives us a lot of height adjustability, that allows us to put an angle on our trailer and allow things to run off. We don't want water building up inside and things like that in certain types of trailers.

It allows us to get that angle. The bracket height or the measurement from the ground to our mounting surface of our jack here is going to be about 27 inches. Now we'll take it on down to the ground and see how short that goes. Now at its lowest position, we've got a bracket height of about 12 inches, which is going to account for that 15 inches of travel.Now to begin your installation process, of course you'll need your old jack to be removed. It's a good idea to support it with some jack stands on the tongue of your trailer so you don't have to worry about it falling. The only requirement we're going to have is in the hole size where our jack is going to slide through. The outer tube here is two and a quarter inches in diameter. Once we've confirmed that our opening will accept the jack, we can just bring it right down in there. Your single hole most often is going to be facing towards the front. You'll see how the holes are a little bit oblong here, that's going to give us a little bit of play. If our holes are a little bit further apart or a little bit closer together, it should still work.Now you'll want to reuse the existing hardware that you had. We had self tapping bolts, now if you don't have hardware, if you need to replace it you want to use a minimum of three eighths inch diameter hardware. You want to have that be a minimum of grade five. We'll thread them in. In some cases you're going to have nuts and bolts. We're going to be sure you use a lock washer, a nylon lock nut. If you've got threaded holes like we have here, just be sure you've got a lock washer on, just to prevent your bolts from ever backing back out on you. It's better to get them all started while your jack is a little loose, so you can move it around a little bit. Then we'll begin tightening them down.Once we have them all snug, we can torque them down appropriately for the hardware size that you're going to be using. At that point we'll just use the jack, take the weight off our jack stand and we can get that removed. That's going to complete our look at the Bulldog A-Frame Trailer Jack, part number BD175000.


Ask the Experts about this Bulldog Trailer Jack
Do you have a question about this Trailer Jack?

  • Recommended A-Frame Trailer Jack for Bottom Mount Trailer Application
  • For your trailer jack, I recommend Bulldog A-Frame Jack - 5,000 lbs - Top Wind # BD175000 which will be an easier installation than a sidewind option on your trailer based on the photos. If you prefer the sidewind style, it can absolutely still be used. For this, I recommend the Round A-Frame Trailer Jack - Sidewind - 15-5/8" Travel - 5,000 lbs # TJA-5000S-B. The installation of a sidewind will require disassembling the jack because the gearbox wouldn't otherwise clear the installation...
    view full answer...

  • Where Is Retracted Length Measured On Trailer A-Frame Jack
  • The retractable height of a jack like the Bulldog A-Frame Jack, part # BD175000, is the distance from the bottom of the inner jack leg when fully retracted to the mounting bracket. The measurement is taken with no bottom bracket or wheel installed. The BD175000 has a retracted measurement of 12-1/4 inches and has a capacity of 5,000 lbs.
    view full answer...

  • Recommended Trailer Jack for 2017 Sure Trac Dump Trailer
  • For your 2017 Sure Trac Dump Trailers, I recommend the Bulldog Round, A-Frame Jack - Sidewind - 15" Lift - 5,000 lbs # BD1700100317 along with the foot plate # BD018564 for a sidewind option or the topwind # BD175000 if you prefer that style with the same foot plate. These jacks are very well made and have a high tongue weight load capacity of 5,000 lbs when lifting or 7,000 lbs static. Both these jacks have a 5 year warranty.
    view full answer...

  • Correct Trailer Tongue Jack Capacity for a Trailer with GVWR of 2980-lbs
  • When it comes to either trailer tires, hitches, winches or jacks, having extra capacity is a good idea. With jacks, using one rated for more weight than you're actually going to ask it to lift means it will have to work less hard to do its job. That tends to mean reduced wear and tear and can lead to a longer working lifespan for the jack. Since the cost difference between 1000-lb and 2000-lb jack is often quite small, it just makes sense to add safety margin whenever possible. For...
    view full answer...

  • Bulldog A-Frame Trailer Jack with Hole for Footplate or Caster Wheel
  • The Bulldog A-Frame Jack # BD175000 does not have a hole in it for a caster wheel or footplate. I talked to Bulldog and they said a hole can be drilled. For a similar jack that does have a hole already we have # BD155032. For a caster use # BDCP555 and for a footplate use # BD018564
    view full answer...

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Info for this part was:

Updated by:
Lindsey S
Updated by:
Laura H
Installed by:
Cole B
Expert Research:
Jeffrey L
Photos by:
Sam P
Installed by:
Randy B
Video Edited:
Chris R
Updated by:
Shelly K
Updated by:
Sarah W
Updated by:
Alexander C
Video by:
Zach D

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