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  6. 4001 - 5000 lbs
Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs

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

Item # BD155032
Our Price: $48.32
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Trailer Jack
Shipping Weight: 10 lbs
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Ideal for many agricultural and commercial applications, this A-frame jack features a 10-5/16" retracted height and measures 10-3/16" from the mounting bracket to the top of the jack, excluding the handle. Base sold separately. Great Prices for the best trailer jack from Bulldog. Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs part number BD155032 can be ordered online at or call 1-800-940-8924 for expert service.
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Bulldog Trailer Jack - BD155032

  • Car Hauler
  • Enclosed Trailer
  • Utility Trailer
  • 4001 - 5000 lbs
  • Topwind Jack
  • Bolt-On
  • Weld-On
  • Leveling Jacks
  • Tongue Jacks
  • 15 Inch Lift
  • No Wheel or Foot
  • Steel
  • Bulldog

Ideal for many agricultural and commercial applications, this A-frame jack features a 10-5/16" retracted height and measures 10-3/16" from the mounting bracket to the top of the jack, excluding the handle. Base sold separately.


  • 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
  • Outer and inner tubes are gray-paint finished
  • Footplate or caster assembly sold separately


  • Bracket height:
    • 10-5/16" Retracted
    • 25-5/16" Extended
  • Lift: 15"
  • Clearance: 10-3/16" from mounting bracket to top of jack, excluding the handle
  • Measurement from mounting bracket to bottom of 2-1/4" tube: 9"
  • Inner tubing diameter: 2"
  • Outer tubing diameter: 2-1/4"
  • Handle radius: 6-5/8"
  • Lift capacity: 5,000 lbs
  • 5-Year limited warranty

How to Determine the Lift Capacity You Need in a Jack

A trailer jack is designed to lift the tongue of your trailer so you can connect the trailer coupler to your hitch ball. To do this, you'll need a jack with a lift capacity high enough to handle your trailer's tongue weight.

Tongue weight is the amount of weight that your trailer applies to the back of your tow vehicle. Typically, your tongue weight should be 10-15% of your total trailer weight (trailer + cargo). In other words, a 10,000-lb trailer would have a tongue weight between 1,000 lbs and 1,500 lbs. For a trailer this size, you would need a jack with a lift capacity of at least 1,500 lbs.

It's okay to have a jack with a weight rating that is higher than your trailer's tongue weight. In fact, a jack with a higher lift capacity should operate more efficiently, allowing you to spend less time cranking and more time camping.

Trailer and Camper Jack Lift

Every jack offers a certain amount of lift or travel. Screw travel is the distance the jack extends when you crank it (or toggle it to "extend" on an electric model). Some jacks include a drop leg for extra adjustability. On these jacks, you'll see the maximum extension of the drop leg listed in the specs as well. Adding the screw travel and drop leg travel together will give you the total lift. The total lift listed above can help you determine how high this jack will be able to raise your trailer.

155032 Bulldog Round A-Frame Jack, Topwind, 15" Travel, 5,000 lbs - TWL 155 HD

Installation Details BD155032 Installation instructions

California residents: click here

Customer Satisfaction Score:

Customer Reviews

Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs - BD155032

Average Customer Rating:  4.9 out of 5 stars   (342 Customer Reviews)

Ideal for many agricultural and commercial applications, this A-frame jack features a 10-5/16" retracted height and measures 10-3/16" from the mounting bracket to the top of the jack, excluding the handle. Base sold separately.


This was the third jack for an tandem enclosed cargo trailer that weighs about 7000 pounds loaded. The trailer belongs to a Non-profit living history group of which I am the "Seneschal" which essentially means the guy with the truck big enough to pull the trailer. My responsibilities also include repair and maintenance of all of the gear and the trailer. The original jack was damaged and I had purchased a "speed jack" from another company and installed it last October and did not use the trailer until April of this year. One use and that jack failed. Upon dissection I discovered that the Chinese manufacturer failed to lubricate it and the bearings were rusted and in various stages of disintegration. After a bit of cursing and a bit more internet research I found etrailer. Once I abandoned the idea of a "speed jack" and went with the drop jack, I found that etrailer had what I needed at a competitive price. Calling etrailer lead to a delightful experience rich with excellent customer service with likes of which I have never experienced in my 58 years. I ordered it and was pleasantly surprised when etrailer upgraded my shipping for free. The parts even arrived a day earlier than the upgraded date. I have installed the jack and everything fit as promised. I have attached a picture. I must emphasize that this company has the best customer service that I have ever encountered.

Renscots D.


Very happy with the product and with your service. Thanks!


Wow this bulldog jack is awesome I use it daily on my concession trailer, easy to use and very durable thanks


Installed the tounge jack yesterday.fits perfect works great .no issues what so ever.i love etrailer and its staff!!!!absolutely wonderful very knowledgeable and extremely helpful and quick to reply.I HIGLY recommend etrailer.


Works great, much smoother lift and ergonomic design than cheap stock jack. Leaves enough clearance with handle retrated to clear the tail gate on my truck.


The item was perfect and fit on my trailer. The shipment came in right away and the package was of high quality. Thanks


From time of order to delivery was four days. It bolted right up to my car trailer without any issues. It cranks up/down with a load with nearly no effort. So far so good. I'll up date after a few more uses if it fails. Seems like a quality piece of equipment for being cheep in price. The one it replaced lasted about eight years and paid $160 for it.


The jack and foot appear to be an exact match to the damaged jack I am replacing. I also appreciate the fast shipping and follow ups by etrailer. Plan to purchase from them again. I will update this review after the new jack has been installed on the trailer.


I can't believe I waited 5 years to replace my broken trailer jack. After using blocks of wood, floor jacks and feats of daring to raise and lower my trailer, I finally took a chance and bought a replacement. If only my foot was longer I could kick myself you know where. This has been the best thing I've done in a while. Don't be afraid to buy from etrailer. They have an excellent product and a very good price. Go ahead and take a chance, you won't be sorry.


Have used this model of jack on two different trailers. So far, the older one is 2 years old and it has held up well. It's used on a tandem-axle car hauler. It's seen a lot of use and still works like new. I bought a 2nd one for a smaller utility trailer based on the good experience with the 1st one. It has not been installed yet.


My trailer came with a 3000lb capacity jack which was fine for regular use, but adding weight distribution and a lot of forward cargo really showed after a year. This replaced the previous BullDog jack incredibly easy. The hardest part was really getting the new one out of the super secure packaging.


Product was exactly as advertised, and got here earlier than expected. I plan to use it on an old pickup truck frame which I am converting into a pull behind trailer. The jack mounts perfectly into the coupler I ordered with it. Staff very helpful and efficient.


The hardest part about installing it was taking the old, rusted version off the trailer. I usually prefer side crank handles, but couldn't find the appropriate model/weight limit combo so bought this one instead. I was pleasantly surprised at the easy of which this one cranks up and down. I'm a fan of Bulldog products.


Installed on a 23 foot enclosed trailer. Trailer is loaded to roughly 7000lbs. This jack works fantastic! My order was shipped fast, thanks guys.


Love the A- Frame Jack. It is much better than my old one. I had never installed one before, but I viewed your installation video and it was easy as 1-2-3 to install. I ordered the product and it arrived days earlier than I thought. Everyone was very helpful and professional. I would recommend to all my friends and family.


The Bulldog jack raises the tongue 3/4"-1" higher than other similar jacks. The crank rod is very strong and the knob makes cranking much easier than jacks with a handle.


Easy to install. Did not come with new bolt so we had to go out and get some because the old ones broke while we were taking time off. The handle is pretty stiff to fold away at first but some WD-40 helped.


I receive my order in good time I knew what was going on with my order at all times
I was able to track my order doing shipping
My new Trailer Jack & Hitch Cover was well packed and easy to install

Thank You


good product and price


Second product I ordered from etrailer with absolutely no issues. Trailer jack is exactly what was described and fit my trailer with no modifications. Best price with great service!!


etrailer never fails me. Have always the right parts I am looking for in stock with fast delivery. Keep coming back for all my trailer needs.


Very good quality as I expected. Very fast delivery. Have now bought several items from etrailer and I’ll be back. Great selection of products also.


Good jack. I prefer the top horizontal handle and this one works great. etrailer does on line right!


The whole shopping for parts experience was easy. Great products and great service and I received my order earlier then was told. Thank you all very much for making everything an easy process.


perfect replacement and 1,000 lbs stronger than original for less. advice I'd offer is to determine if you need a top or side winder, your trucks tail gate will appreciate you :)


great jack has a short top neck so it doesn't hit my tailgate when it is down

Show More Reviews

See what our Experts say about this Bulldog Trailer Jack

  • A-Frame Trailer Jack for 10,000 lb Box Trailer
    For a high quality topwind jack that would work great on your trailer the Bulldog 5k jack part # BD155032 is what I recommend. It has quite a bit more capacity than the tongue weight of your trailer would have which means it will operate easily and will also last a long time. Like most jacks of this style it does not have a grease fitting but Bulldog has told us that you can spray white lithium grease up the inner jack leg if you want to lube it although it is not required.
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  • Replacement Jack Recommendation for Atwood 80220 or 80167
    The jack you mentioned is a topwind, 1,000 capacity jack that does not have any mounting hardware on it. The closest match we have to that is the Bulldog part # BD155032 which matches all of that with the only difference being it has a 5,000 lb capacity instead of a 1,000 lb capacity.
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  • Which A-Frame, Top Wind Trailer Jack is Shortest from Mounting Bracket to Top of Jack
    The A-frame, top wind jack that has the shortest distance is going to be the Bulldog jack you referenced, # BD155032. From the mounting bracket to the top is a little over 10 inches (10.2). Another possible solution is to use a longer ball mount to move the trailer further back so the tail gate can lower without hitting the jack. We have some very long ball mounts, see link, some of which have a distance of 16 inches from the center of the hitch pin hole to the center of the ball hole.
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  • Replacement A-frame Jack for 1997 Dutchman Popup Camper with 1-3/4
    I spoke with my contact at Bulldog Trailer Jacks and he said you should not have to file the opening of your camper tongue. A standard sized jack, like # BD155032, which you referenced, should fit easily into the factory opening. The bolt hole pattern on the mounting bracket and the bolt hole pattern on your A-frame trailer tongue are standard, so matching up with the holes should not be a problem. The important thing is to choose a jack whose capacity is greater than the tongue weight...
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  • How to Lubricate the Bulldog Top Wind Round A-Frame Jack # BD155032
    According to the installation instructions for the Bulldog Top Wind Round, A-Frame Jack, # BD155032, the only maintenance needed is applying a light machine oil to the stem that the handle attaches to. The installation instructions also recommend thoroughly rinsing the jack with clean water before lubrication. I went out to the warehouse and looked at one of these jacks and there is no point in the top of the jack for insertion of grease. You could insert grease from the bottom of the...
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  • 5k Rated A-Frame Jack Recommendation
    The closest jack we offer to what you are looking for would be the Bulldog Jack part # BD155032. This is a 5k rated, A-frame jack that has 10-5/16 inches above the mounting bracket for the jack. Check out the review video I attached for more info.
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  • What are the Mounting Hole Dimensions for the Bulldog A-Frame Trailer Jack # BD155032
    I went out to the warehouse and measured a Bulldog A-frame trailer jack, # BD155032. The bolt holes are 3 inches apart on center. I measured a few other A-frame jacks that were nearby and they also had holes that were 3 inches apart on center.
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  • Replacement Tongue Jack Recommendation for a Bri-Mar Dump Trailer
    The replacement tongue jack that you will want for your 2006 Bri-Mar dump trailer is our Bulldog A-Frame Jack, # BD155032. This is a top wind, A-frame jack with 5,000 lbs lift capacity and measures just over 10-3/16 inches from the mounting bracket to the top of the cylinder. It will bolt right in place of your existing jack and if you need a new foot plate as well, you will want part # JF-99.
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  • Radius of Handle on Bulldog Jack # BD155032
    The handle radius of the Bulldog jack part # BD155032 is 6-5/8 inches including the knob.From the picture you sent in this would likely hit the box on your trailer, but the great thing about the swivel handle of this is that you can angle it up as you come around where the box is and you'll be able to avoid it.
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  • Higher Capacity Trailer Jack that Can Fit 2022 Big Tex 14LD
    I looked up your 2022 Big Tex 14LD and it looks like it has an a-frame style trailer jack so for a higher capacity option that would fit we have the Bulldog part # BD155032 which has a 5,000 lb lifting capacity. In this style of jack we do not have anything with a lifting capacity of 12k. Also worth noting is that these jacks only need to have lifting capacity for the tongue weight of the trailer and not the entire weight so a 5,000 lb capacity should easily work for you.
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  • Availability of 5,000 lb Bulldog Jack for A-Frame Trailer
    We have several 5,000 lb Bulldog trailer jacks but I was not able to find your exact part number. If you check out the link I attached you can see all of the 5k Bulldog jacks we carry. The closest matching part number we have is the part # BD155032 which is an A-frame jack with a top wind.
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  • Trailer Jack Recommendation for Boat Trailer 8,500 Pound Gross Towing Weight
    When choosing a jack for your trailer, you want to choose one that surpasses the tongue weight of the trailer when it is fully loaded. The tongue weight of the trailer is typically between 10 - 15 percent of the weight of the trailer. A jack that easily surpasses your trailer's tongue weight is certainly okay to use. I recommend the Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs # BD155032. This jack will weld on like your existing jack, and it is also a side frame mount,...
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  • Looking for Shorter A-Frame Jack to Clear my Tailgate
    I went to our warehouse and was able to locate an a-frame jack that measured less than 12 inches from the bracket up. The Bulldog Round A-Frame Jack, # BD155032, comes in just under 11-1/2 inches which included the handle. I have attached a picture to illustrate the measurement. This a-frame jack has a lift capacity of 5,000 pounds and mounts to any standard a-frame coupler. If you would like a footplate for the jack, Bulldog offers the Detachable Footplate, # BD018564. If you are still...
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  • Low Profile Trailer Jack Recommendation for Better Tailgate Clearance
    Sounds like you are looking for a lower profile jack for your trailer so that the tailgate of the vehicle does not interfere with it. I went to our warehouse and was able to locate an a-frame jack that measured less than 12 inches from the bracket up. The Bulldog Round A-Frame Jack, # BD155032, comes in just under 11-1/2 inches which included the handle. I have attached a picture to illustrate the measurement. This a-frame jack has a lift capacity of 5,000 pounds and mounts to any standard...
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  • Replacement A-Frame Trailer Jack for a 2006 Forest River Wild Wood Trailer
    It sounds like you have a 5,000 pound capacity A-frame trailer jack. There are many options in this category. If we narrow it down to top wind, bolt-on jacks with a round tube, there are 4 possible options. The 14 and 15 inch lift specification is how much the inner leg travels. For a jack with 15 inches of travel, I recommend the Bulldog Round, A-Frame Jack, # BD155032. If you need a foot plate, you can add # BD018564. I have included a link to a video showing this jack being installed.
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  • Replacement Bulldog Jack Solutions for part # 1551060301
    We have checked with Bulldog in the past about the replacement options for the Bulldog A-Frame Jack part 1551060301 that you have and they were able to give us all of the information we need to offer you a solution. The best option we have is the Bulldog Round A-Frame Jack part # BD155033. This jack has the same 2,000 lb capacity, topwind handle, and 15" travel as the one you have now and will work as an exact replacement. If you are wanting to upgrade to a higher capacity then I recommend...
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  • Comparing Differences for Bulldog A-Frame Trailer Jacks
    All three are very similar but there are differences between the three. Measure your stock trailer jack and buy the according jack that works for your application. Bulldog # BD1750290317 has clearance of 10-11/16 inches from mounting bracket to top of jack and is 10-13/16 inches retracted or 25-13/16 inches extended. Bulldog # BD155032 has clearance of 10-3/16 inches from mounting bracket to top of jack, excluding the handle and is 10-5/16 inches retracted or 25-5/16 inches extended. Bulldog...
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  • Installation Of Square Drop Leg A-Frame Jack On Coupler With Round Hole
    The drop leg jacks that we offer have square tubing. You mentioned that the round hole you have on your coupler is 2-3/8 inches diameter. The tubing on the Bulldog Square, A-Frame Jack, part # BD195318 you referenced measures 3 inches diagonally. you would have to modify the hole in your coupler to make this jack fit. We do offer a Bulldog Round, A-Frame Jack, part # BD155032. This has a capacity of 5000 lbs and has a 2-1/4 inch outer tube diameter. I would then recommend the Bulldog...
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  • Pro Series Round, A-Frame Jack # PS1401000303 Recommendation for a Trailer with Low Tongue Clearance
    I think the best option for your trailer would be a Pro Series Round, A-Frame Jack # PS1401000303. This jack has a retracted height of 5-1/2 inches to give you additional clearance when you are traveling on uneven terrain. This jack also has 2,000 lb capacity, but since you said you only get near that capacity and not over you should be fine.
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  • Recommended A-Frame Trailer Jack To Replace Damaged Pro Series PS1400600303
    I reached out to Pro Series and unfortunately there is no replacement parts available for the Pro Series Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs # PS1400600303 you have so your only option will be to replace the jack. A frame jacks like the Pro Series # PS1400600303 you have use a standard 3 bolt pattern so you would not have any issues replacing it with a Bulldog jack like the Bulldog Round, A-Frame Jack - Topwind - 15" Lift - 5,000 lbs # BD155032. I included a video of...
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  • Side Mounted Trailer Jack Recommendation for a Trailer for Good Ground Clearance
    From the pictures I found of your 2016 r-pod 178 trailer it looks like you have an A-frame jack like the part # BD155032 that you referenced. If ground clearance is a problem with this jack one solution you have would be to replace the jack with one that attaches to the side of the trailer frame and can swivel. The Pipe Mount Swivil Jack part # DL22685 uses a pipe mount that would get welded to your trailer frame and would allow the jack to swivel up and out of the way when not in use.
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  • Replacement Top Wind A-Frame Trailer Jack Options for a 16 Foot Camping Trailer
    We have oodles of jacks like the one in your picture suc has # BD155032. I have included a link to them for you. The mounting pattern is an industry standard so you won't have to weld a new jack on. What you will want to look at is the capacity, outer tube diameter, lift amount, and the retracted height. Most jacks have an outer tube diameter of 2-1/4 inches but there are some that are different. Some of the options is the link have feet or a wheel and some do not and there are numerous...
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    Image 1 for
  • 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 # BD500245 and for a footplate use # BD018564
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  • Recommended Replacement for the Bulldog A-Frame Trailer Jack Part 1551060301
    I called Bulldog about the Bulldog A-Frame Jack part 1551060301 that you are wanting to replace and they were able to give me all of the information I need to offer you a solution. The best option we have is the Bulldog Round A-Frame Jack part # BD155033. This jack has the same 2,000 lb capacity, topwind handle, and 15" travel as the one you have now and will work as an exact replacement. If you are wanting to upgrade to a higher capacity then I recommend the Bulldog Round A-Frame Jack...
    view full answer...

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