Price: $182.08

Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs

Item # BD182701

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Retail:$242.64

Our Price: $182.08

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Product Images

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bulldog trailer jack sidewind drop leg square - w/ spring return 12-1/2 inch lift 12 500 lbs
bulldog trailer jack sidewind drop leg bd182701
bulldog trailer jack side frame mount drop leg square - w/ spring return sidewind 12-1/2 inch lift 12 500 lbs
bulldog trailer jack side frame mount sidewind square - drop leg w/ spring return 12-1/2 inch lift 12 500 lbs
bulldog trailer jack side frame mount drop leg
bulldog trailer jack fixed mount sidewind bd182701
bulldog trailer jack fixed mount drop leg bd182701
bulldog trailer jack fixed mount sidewind

Customer Photos

bulldog trailer jack side frame mount sidewind square - drop leg w/ spring return 12-1/2 inch lift 12 500 lbs
bulldog trailer jack side frame mount sidewind square - drop leg w/ spring return 12-1/2 inch lift 12 500 lbs
bulldog trailer jack side frame mount sidewind bd182701
bulldog trailer jack side frame mount sidewind bd182701

Videos


  • Side Frame Mount Jack
  • 12500 lbs
  • Sidewind Jack
  • Fixed Mount Jack
  • Drop Leg
  • Weld-On
  • Bulldog
  • 26 Inch Lift
  • With Foot
This heavy-duty, sturdy steel jack has easy-to-access grease fittings, a drop leg with spring return and an integrated screw stop to prevent damage to the screw and the nut. Sidewind crank sold separately. Lowest Prices for the best trailer jack from Bulldog. Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs part number BD182701 can be ordered online at etrailer.com or call 800-298-8924 for expert service.



Bulldog Trailer Jack - BD182701

This heavy-duty, sturdy steel jack has easy-to-access grease fittings, a drop leg with spring return and an integrated screw stop to prevent damage to the screw and the nut. Sidewind crank sold separately.


Features:

  • Perfect for raising, leveling and supporting horse, livestock and other heavy-duty trailers
  • Easy-to-access grease fittings for routine maintenance
  • Integrated screw stop keeps you from over-extending jack
    • Prevents damage to nut and screw
  • Drop leg with spring return increases overall extension for maximum adjustability
  • Heavy-duty steel offers superior strength and durability
  • Painted inner and outer tubes are weather resistant
  • Direct-weld design
  • Sidewind crank sold separately
  • Standard footplate included


Specs:

  • Bracket height:
    • 28-1/2" Retracted
    • 54-1/2" Extended
  • Drop-leg travel: 13-1/2"
  • Lift: 12-1/2"
  • Lift capacity: 12,500 lbs
  • Static capacity: 25,000 lbs
  • Footplate dimensions: 10" long x 10" wide
  • Limited 5-year warranty


182701 Bulldog Twin-Cam Heavy-Duty Jack with Spring Return Drop Leg - 12,500 lbs



BD182701 Installation InstructionsInstallation Details BD182701 Installation instructions



Premium - This item

Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs


Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs
Bulldog Trailer Jack

41 reviews

Code: BD182701

In Stock

Retail:$242.64

Our Price: $182.08


  • Trailer Jack
  • Side Frame Mount Jack
  • Fixed Mount Jack
  • Weld-On
  • 12500 lbs
  • Sidewind Jack
  • 26 Inch Lift
  • Drop Leg
  • With Foot
  • Bulldog


This heavy-duty, sturdy steel jack has easy-to-access grease fittings, a drop leg with spring return and an integrated screw stop to prevent damage to the screw and the nut. Sidewind crank sold separately.

more information →
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Pro Series Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 10,000 lbs


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Heavy-duty, weld-on, square, drop-leg jack includes a sidewind crank and has a front-facing plunger pin and a 28-1/4" retracted height. Perfect for agricultural, construction, livestock or heavy-duty utility applications.

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Bulldog Square Jack - Drop Leg w/ Non-Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs


Bulldog Square Jack - Drop Leg w/ Non-Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs
Bulldog Trailer Jack

Code: BD182700

In Stock

Retail:$234.70

Our Price: $172.99




    This heavy-duty, sturdy steel jack has easy-to-access grease fittings, a manual drop leg and an integrated screw stop to prevent damage to the screw and the nut. Sidewind crank sold separately.

    more information →

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    Video of Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs


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




    Video Transcript for Bulldog Trailer Jack BD182701 Review

    Today we are going to be taking a look at the Bulldog Square Jack. This jack does have a drop leg, has a foot plate and it is going to have the spring return. This is going to be perfect for raising, leveling and supporting a trailer, such as horse, livestock and other heavy duty trailers, whether it is a Gooseneck or Fifth wheel or whatever. This is going to handle heavier loads. It is actually going to have a capacity when it comes to the lift capacity of 12,500 pounds. It is also going to have a static capacity, which is a support capacity of 25,000 pounds, so it is a nice strong durable design. I do want to point out, when it comes to maintenance of this particular jack, it is pretty simple.

    You do want to make sure that down here these moving components always stay lubricated, so you can just put some grease in there. It is going to come pre-greased and ready to go. Right here, I want to point out that there is going to be a couple greased zerk fittings, which just allows for easy maintenance. You can hook up your grease gun, pump grease in there and lubricate the internal components. It has got those, those are very easy to access and it just makes it a little bit easier for routine maintenance. The unit is going to feature an integrated screw stop.

    What that does is that is going to keep you from being able to over extend the jack, which ultimately prevents damage to the nut and screw system which is the main component of this jack. The integrated screw stop is a really neat feature to have. Again, it does have the drop leg, I do have it pulled out. It is on the second setting right now, just to show you how to adjust. I am going to show you how to release it here in a moment, but it does have the drop leg with the spring return.

    That is really going to help increase overall extension for maximum adjustability. On this side right here, it is going to feature the foot lever to engage and disengage the drop leg function. I will show you how to do that as well. The unit is constructed of heavy duty steel, it is going to offer superior strength and durability. It is going to have black painted inner and outer tubes, they are weather resistant. When it comes to installing it, it is a direct weld design.

    That is going to feature the handles right here. This would use a side wind crank to raise and lower the jack, that is sold separately, it is not included. We offer those here at Etrailer.com if you are in need of one. It is going to have the standard foot plate here at the base. It is a nice large design. Foot plates are going to come in handy when it comes to adding stability to the overall unit, as well as to help prevent sinking, even on softer ground. If we take a measurement of this one, we can see it is going to measure about 10 inches by pretty close to 10 inches, more like 9 and 3/4, so it is a really nice large design. The unit is going to give us a travel or lift of about 12 and a 1/2 inches, not including the drop legs. If we take a measurement of the height right now . I am go move it to the fully retracted position, so in order to do that, I already have it retracted all the way down here at the handle, but I need to go ahead and lower or retract that foot plate or the drop leg. To do that, right now this is in an engaged position, so this foot lever is connected to an internal pin and that when it is in the up position, it engages those pin holes. If we want to disengage it, and also be careful with spring return, it is going to retract that leg very quick. I am going to put one foot on it, just to put weight on it so it doesn't fold up on its own or retract on its own. I am going to step on this lever here, and then that allows us to move the unit up and down to all the different locations. That foot lever is a really nice, easy to use design and it also keeps you hands free from the area so that way you don't have to worry about them getting pinched, so it is also a little bit safer. With it fully retracted, measuring from the ground, or in this case my table top, to the top of the jack, that is going to us the height of about 28 and 1/2 inches. I fully extended it and it measured 41 inches, which gives this jack a traveler lift of 12 and 1/2 inches. The drop leg is going to offer an additional 13 and 1/2 inches of travel and that can be adjusted in increments of 3 and 3/8 of an inch. With it fully extended and with the drop leg fully extended, it is going to have a fully extended height of 54 and 1/2 inches. That is measuring from the ground to the very top of the jack. Again, this is going to have a lift capacity of 12,500 pounds and a static or support capacity of 25,000 pounds. That is going to do it for today's look at the Bulldog Square Jack, with a drop leg and spring return.


    Customer Reviews

    Bulldog Square Jack - Drop Leg w/ Spring Return - Sidewind - 12-1/2" Lift - 12,500 lbs - BD182701

    Average Customer Rating:  4.7 out of 5 stars   (41 Customer Reviews)

    This heavy-duty, sturdy steel jack has easy-to-access grease fittings, a drop leg with spring return and an integrated screw stop to prevent damage to the screw and the nut. Sidewind crank sold separately.

    - BD182701

    by: ConnerCattleCompany12/13/2016


    Quite possibly one of the best jacks I have ever used. I bought this jack to go on a 1993 S&H 6x20 stock trailer and it has performed great. One feature that is really nice is the grease zert on the front. I never understood why a lot of these jacks do not have a zert. The jack that this jack replaced did not have one and I am fairly certain that is the reasoned it failed. The other great thing about it is the spring and spring release handle. If you do not have a spring jack you should. No more squatting down in the mud to raise the jack stand leg for me. Just lower the jack, push the handle down with your foot, (left or right foot, it's ambidextrous so it doesn't care which) lock your trailer to the ball and you are off and running with no mud or grass stains on your knees! Also on a side note the service with etrailer is great. Same day shipping usually and if not it's the next day and will be there quickly. Great people too. Bottom line is I would recommend this product and company to anyone in need of a jack or other trailer parts/accessories. 324554



    - BD182701

    by: JC little Inc11/24/2015


    The replacement Jack is very well built. has maintenance grease Zerk's for easy usability, the retracting assembly is easy to use and installing is not complicated. Ordering and receiving part was in a timely manner and the on line help for dis in engaging the foot mechanism was very helpful . This This Bull Dog Mechanical jack is much ease-yer to operate and and maintain than the factory install jack. Thanks Gerald L. 232494



    - BD182701

    by: JC little Inc11/24/2015


    The replacement Jack is very well built. has maintenance grease Zerk's for easy usability, the retracting assembly is easy to use and installing is not complicated. Ordering and receiving part was in a timely manner and the on line help for dis in engaging the foot mechanism was very helpful . This This Bull Dog Mechanical jack is much ease-yer to operate and and maintain than the factory install jack. Thanks Gerald L. 232491



    - BD182701

    by: Frank D11/03/2017


    Quality jack for a great price, much better jack for my equipment trailer then the top crank one that came with it 448700



    - BD182701

    by: Gene Perkins12/09/2014


    Ordering was fast ad easy. Order confirmation was almost immediate. Delivery to my shop was super fast! I am so happy from start to finish with the whole process. Any outfit that does that great has my return business forever. I would do pictures,but my kids are not home to help the old gearhead, lol. 164029



    - BD182701

    by: Jon09/09/2017


    Great trailer jack for the price It's pretty heavy and could have been packaged a little better. Would have given 5 stars but foot plate got bent a little bit during shopping. Must have been dropped. Still useable so didn't return since I need it now. 430530



    - BD182701

    by: M.T.A.08/31/2017


    etrailer was the cheapest I could find for my Bulldog brand trailer jack. The jack weighed 64 lbs. and they gave me free shipping, which was totally unexpected. I will definitely look to etrailer first for my future trailer part needs. 427388



    - BD182701

    by: Susan P.02/15/2015


    We received our jack in perfect condition! It was exactly what we needed & it works wonderful!!! Thank you so much etrailer.com - we are telling all of our friends & family where to buy their trailer products! You are amazing! 174848



    - BD182701

    by: Jim G08/07/2017


    product was delivered in a very timely manner, it beat its delivery date by one working day , plus the weekend . The Jack was as I expected, got it welded on the trailer and all of my worries are gone . Thank you etrailer. 417448



    - BD182701

    by: Scottie D.07/03/2013


    The jack was exactly what I was needing. It will be perfect for my trailer. It will carry the load, the drop leg is easy to operate. My old jack was heavy duty but not heavy enough, PROBLEM SOLVED!! 87266


    Comments

    Is it a 2 speed crank?

    -- comment by: Tony - 08/24/2013

    1950

    This jack is a single speed unit. For a comparable 2 speed version, look at part BD183750. Same high weight capacity and drop-leg, but with a 2 speed gear-box for the crank.

    -- Patrick B - 8/24/2013


    - BD182701

    by: Barry Hultz08/08/2017


    We are very pleased with the Bull dog jack that we got for our cow trailer. It is very heavy duty and easy to use. Wish we had bought it a year ago. Service was wonderful and would buy from them again. Thanks. Barry 417484



    - BD182701

    by: Ralph L.10/01/2016


    Jack shipped and received promptly. Only took a couple hours to remove old jack and replace with this new heavy duty one. Works great! Only complaint is that it was made in Mexico rather than the good old USA. 302417


    Comments

    I am still very happy with the Bulldog jack. I only half-jokingly told my brother the other day that since I got this jack, I really look forward to hooking up to the stock trailer to move cows! Thanks

    Ralph L - 10/17/2017

    29393

    - BD182701

    by: James09/11/2016


    It is a good jack. The only draw back that I have encountered is that it has two pins that spread apart and when you go to lift the leg and when you put it back in, they fit too tight. 293579


    Comments

    Works just fine...as I expect.

    James - 09/11/2017

    28113

    - BD182701

    by: Mike j12/31/2014


    Nice product. ...1 note you must have at least 1"of clearance at the side for the lever handle when raised. May be better to get side access lever in some situations 167439



    - BD182701

    by: Big Brian01/15/2014


    Trailer jack little beat up from shipping (to be expected with weight ) but works better than some jacks that came new on my chippers and deckover trailers. 113896



    - BD182701

    by: Dave Johnson04/10/2015


    Great people to deal with, fast shipping and the best Prices I could find. Good jack replacement. I like the foot release with spring return. Thanks, Dave 184572



    - BD182701

    by: Teresa P.02/03/2014


    A bulldog jack, not a Chinese copy. Really fast shipping! And free to boot! I saved a bundle shopping at etrailer. Really good folks. Thank You. 115588



    - BD182701

    by: Rolland H04/13/2013


    it was great serviceI would recommend you to anybody I'm very happy it is a very nice Jack and you had the best price sorry no picture 75752



    - BD182701

    by: Jb10/11/2017


    Excellent in all respects. Product is advertised. Tech support was fast with response to questions. Free shipping took 3 days. 441679



    - BD182701

    by: Ron B.10/15/2014


    This is my second purchase from eTrailer and am pleased with this purchase as with my first. Easy ordering and quick shipping. 156057



    - BD182701

    by: Justin11/18/2017


    Etrailer is the only place I buy trailer parts and the truck/towing stuff I need. They have the best price and selection. 453328



    - BD182701

    by: Shawn M02/23/2017


    Have not installed yet but looks like good quality. Received in timely manner. Will give full review when installed. 344705



    - BD182701

    by: David A .04/15/2014


    Jack came in 2 Days after it was shipped in great shape , Installed and it works great. Thanks David A,. 125202



    - BD182701

    by: Chris Carmon09/29/2017


    Much larger foot base than i had before, the spring loaded release makes it so much easier. 437699



    - BD182701

    by: Spud08/19/2017


    Bought jack for trailer. As always, good product, knowledgeable service and fast delivery. 422607



    - BD182701

    by: Scott R07/07/2017


    Always a great company to deal with, fast shipping and great service. Thanks Scott R 402681



    - BD182701

    by: Allen11/15/2017


    Works really smooth. Use it as a tandem jacks on a 25 foot goose neck. No problems! 452140



    - BD182701

    by: Eric04/02/2013


    Product is as described. Well made product and operation is smooth. 73941



    - BD182701

    by: Steve C10/05/2016


    So far so good.I'm pleased with the easy of use n durability. 303569



    - BD182701

    by: Gman09/27/2016


    Just what the trailer needed. Price and delivery was great. 300317



    - BD182701

    by: Randy h05/14/2017


    Product arrived on time, worked just gr eat. 380164



    - BD182701

    by: DL11/02/2017


    Delivered just as ordered. Shipped time ly. 448281



    - BD182701

    by: Builder Dave05/07/2016


    Easily replaced original unit. Well bui lt. 248917



    - BD182701

    by: Jeff S09/19/2017


    Great service, Fast shipping, Great Jack 434046



    - BD182701

    by: Jeff S09/19/2017


    Great service, Fast shipping, Great Jack 434045



    - BD182701

    by: Michael B03/12/2017


    Yea everything is working great. Thanks 355528



    - BD182701

    by: Becki Holte03/08/2017


    Good communication,fast delivery hapoy 349793



    - BD182701

    by: MCC01/13/2017


    Competitive pricing and fast shipping. 332178



    - BD182701

    by: Troy08/25/2017


    The jack works great, fast shipping. 424865



    - BD182701

    by: Eric05/17/2016


    Still working smoothly after a year 250549


    Comments

    I still can operate it with one hand after a year of service!

    Eric - 05/17/2017

    23955

    - BD182701

    by: Art b07/28/2015


    Great product and service. 215102


    41
    41

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


    • Adding an Electric Motor to Bulldog Square Jack # BD182701
    • The motor that fits Bulldog jack # BD182701 is powered drive kit # BD1824200100. The shaft on the jack is 1 inch in diameter and the pin hole for the crank is approximately 5/16 of an inch. The motor mounts to the side of the jack as you can see in the picture I included. Adding the motor limits the jack capacity to 12,000 pounds. I have linked a video review of the powered drive kit for you.
      view full answer...

    • Replacement Trailer Jack for 10 Foot Moritz Dump Trailer
    • The Bulldog # BD182701 that you chose would likely work well for you, but I have a feeling the jack has WAY more capacity than you need. The capacity of the jack only needs to exceed the fully loaded tongue weight of the trailer, not the GTW gross trailer weight, which is the total weight of the trailer plus its contents. I don't know the GTW of your trailer, but from what I saw online, think you could probably get by with a smaller capacity jack. The Bulldog # BD182701 jack doesn't include...
      view full answer...

    • Are the Spring Returns of Bulldog Jacks Repairable if the Spring Return Function Stops Working
    • It sounds like you have a spring return Bulldog landing gear jack that has a broken spring and now won't retract when you activate the release lever. I spoke to my contact at Bulldog and he said the springs aren't repairable so you would need to replace the jack with something like the part # BD182701.
      view full answer...

    • Is A 2-Speed Jack Easier To Crank Than A Single-Speed For Grain Cart With 6500 LB Tongue Weight
    • The benefit of the two-speed jack like part # BD183750, would be the speed at which you can turn the handle. When using the low gear the jack will lift 1 inch every 29-1/2 turns. When used in high gear it will lift 1 inch every 9 turns. Although it may be a bit easier to turn in low gear, you would have to crank the handle more than three time as much to lift the same height. The Bulldog Square Jack, part # BD182701, you referenced, has a lift capacity of 12500 lbs and a static weight...
      view full answer...

    • Correct Trailer Jack for a Cherokee 2002 3 Horse Trailer with 8 Foot Living Area and 12000 GVW
    • For your application I recommend using the Bullydog Square Jack # BD182701. This jack has a lift capacity of 12,500 pounds which is rated more appropriately for your trailer with a Gross Vehicle Weight of 12,000 pounds. The Pro-Series Jack that you mentioned # PS1400950376, only has a lift capacity of 10,000 pounds, and a static capacity of 12,000 pounds. Your trailer exceeds the capacities of the jack. The diameter of the drive for the Pro Series # PS1400950376, and the Bulldog...
      view full answer...

    • Replacement Parts for Pro Series 12000 Trailer Jack
    • Unlike costlier brands of trailer jack the entry-level Pro Series line is not supported with the same repair/replacement parts availability as with the upper tier sister brands like Bulldog and Fulton. The few parts we have available to us are shown on the linked page. Those other product lines cost more because the manufacturer bears the cost of maintaining spare parts inventory. You can refer to the linked page for all jacks to select the type you need, such as 5th wheel landing gear...
      view full answer...

    • Powered Drive Kit Recommendation for a Bulldog Square Jack # BD182701
    • I spoke to my contact at Bulldog and he said the Powered Drive Kit # BD1824200100 would work on a Bulldog Square Jack # BD182701 like you referenced.
      view full answer...

    • What Sides of Bulldog Square Drop-Leg Jack # BD182701 Are to be Welded to Trailer Frame
    • The Bulldog Square 25K Drop-Leg Jack, part # BD182701, can be welded to your trailer on any of its four sides if installed in a direct-weld application. My technical contact at Bulldog confirmed that the 4-inch outer tube is suitable for welding on any side and in any preferred orientation. Before welding you will want to confirm that you have proper clearance relative to other components on your trailer and that you will have enough room to operate the crank handle. All welding...
      view full answer...

    • Recommended Bulldog Square Jack And Handle To Work With Bulldog Jack BD183750
    • If you are going to use the Bulldog 2-Speed Square Jack, part # BD183750 in a tandem setup you can use part # BD182701. The crank handle needed for this is part # BD015181.
      view full answer...

    • Installation of Power Drive Kit on Bulldog Square Tube Jack
    • On the weld-on Bulldog Square Jack with Drop Leg # BD182701 the Powered-Drive Kit # BD1824200100 can install on either side of the jack. Please refer to the linked video at the 8:38 mark. The trailer shown in the video also has a spare tire that required alternate-side installation of the Power Drive kit.
      view full answer...

    • Replacement Trailer Jack For Rice Trailer That Currently Has 14K Ram Jacks
    • Unfortunately we do not carry the 14K replacement parts, but I do have a replacement jack solution for you. I recommend you replace your trailer jacks with either the Square 2-Speed Jack - Drop Leg w/ Non-Spring Return - Weld On - Sidewind - 25K # TJD2SP-25100 or the Square Jack - Drop Leg w/ Non-Spring Return - Weld On - Sidewind - 9-3/4" Travel - 25,000 lbs # TJD-25100. These weight capacities are a little overkill, but that is all we have unless you drop down in weight capacity...
      view full answer...

    • Clearance Needed For Mounting Bulldog Square Jack On Equipment Trailer
    • When the Bulldog Square Jack, part # BD182701 is fully retracted the distance from the bottom of the outer leg on the jack to the ground is 4-1/2 inches. Since this is a weld-on jack you can attach this at a height along the outer tube so you have the ground clearance you need on your trailer.
      view full answer...

    • Square Jack With 25000 lb Capactity Compatiblility With Electric Motor
    • There isn't a motor available for the Square Jack - Drop Leg w/ Non-Spring Return - Weld On - Sidewind - 9-3/4" Travel - 25,000 lbs # TJD-25100. We don't carry any jacks or landing gear that are electric with that capacity. We have a square jack that can be used with a motor made by Bulldog. The motor that fits Bulldog jack # BD182701 is powered drive kit # BD1824200100. The shaft on the jack is 1 inch in diameter and the pin hole for the crank is approximately 5/16 of an inch. The...
      view full answer...

    • Recommended Trailer Jack for 1997 Hart 3 Horse Trailer
    • For a replacement trailer jack on your 1997 Hart 3 Horse Trailer, I recommend looking at the Bulldog Square Jack # BD182701. This direct-weld jack has a lift of 12-1/2 inches and a weight capacity of 12,500 pounds, which will be more than enough for your 9,500 empty weight trailer. This jack has a nice integrated screw stop that will prevent you from over-extending and damaging the jack as well as a drop leg with spring return to increase the overall extension. For the sidewind crank...
      view full answer...

    • Can an Electric Motor be Added to the Bulldog Square Jack # BD182701
    • The Bulldog Square Jack # BD182701 that you referenced can have an electric motor added to it using the Bulldog Powered-Drive Kit for Single-Speed Jacks w/ 12,000-lb Capacity # BD1824200100. Since the powered-drive kit is rated for 12,000 lbs that will be your weight capacity. This is a weld-on jack that works well for heavy-duty trailers such as a horse trailer. We do not have access to specs on every trailer so I couldn't tell you if it is a direct replacement, but since it is a weld-on...
      view full answer...


    Do you have a question about this Trailer Jack?




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    Info for this part was:

    Photos by:
    Theodore B
    Written by:
    Lindsey S
    Expert Research:
    Michael H
    Expert Research:
    Jameson C
    Updated by:
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    Expert Research:
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