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  1. Trailer Jack
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  4. 7001 - 8000 lbs
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Bulldog Square Jack w/ Footplate - Drop Leg - Sidewind - 28-1/2" Lift - 7,200 lbs

Bulldog Square Jack w/ Footplate - Drop Leg - Sidewind - 28-1/2" Lift - 7,200 lbs

Item # BD180455
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Our Price: $161.11
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Trailer Jack
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Shipping Weight: 33 lbs
Bulldog Trailer Jack - BD180455
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This heavy-duty, square, drop-leg jack is smaller than typical large-capacity jacks - perfect for tight-fitting applications. Welds directly onto trailer with no burn through and has 25-11/16" retracted height. Lowest Prices for the best trailer jack from Bulldog. Bulldog Square Jack w/ Footplate - Drop Leg - Sidewind - 28-1/2" Lift - 7,200 lbs part number BD180455 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (106)
  • Q & A (0)
  • Photos
  • Why etrailer?

Bulldog Trailer Jack - BD180455

  • Side Frame Mount Jack
  • 7001 - 8000 lbs
  • Sidewind Jack
  • Drop Leg
  • Weld-On
  • Fixed Mount Jack
  • 29 Inch Lift
  • With Foot
  • Bulldog

This heavy-duty, square, drop-leg jack is smaller than typical large-capacity jacks - perfect for tight-fitting applications. Welds directly onto trailer with no burn through and has 25-11/16" retracted height.


  • Superior side-load capacity compared with round jacks
    • Outer and inner tubes overlap for additional strength when jack is fully extended
    • Square design provides additional support for side loading
  • Durable, heavy-gauge construction lets you mount without burn through
  • Weather-resistant coating on outer tube and zinc inner tube
  • Screw-nut stop prevents damage to screw and/or nut when jack is fully extended
  • Sidewind handle has smooth, ergonomic design for easy cranking
  • Drop leg increases overall extension for maximum adjustability
  • Heavy-duty footplate has reinforcement ribs for increased strength and zero water retention
  • Grease zerk allows easy lubrication
  • Long bearing and gear life with oil-impregnated bushing
  • Direct-weld design
  • ASABE compliant


  • Overall height:
    • 25-11/16" Retracted
    • Extended (with drop leg): 54-3/16"
  • Total lift: 28-1/2"
    • Travel: 15"
    • Rate of travel: 1" per 10 turns
    • Drop leg: 13-1/2"
  • Tubing width: 3"
  • Handle radius: 10-1/2"
  • Lift capacity: 7,200 lbs
  • Static capacity: 10,000 lbs
  • Overall length of outer tube: 23"
  • Foot plate dimensions: 8" x 8-1/2"
  • Limited 5-year warranty

180455 Bulldog Square Direct Weld Jack with Drop Leg, Sidewind, 28-1/2" Lift - 7,200 lbs - SWL 180 DL-BQ

California residents: click here

Customer Reviews

Bulldog Square Jack w/ Footplate - Drop Leg - Sidewind - 28-1/2" Lift - 7,200 lbs - BD180455

Average Customer Rating:  4.9 out of 5 stars   (106 Customer Reviews)

This heavy-duty, square, drop-leg jack is smaller than typical large-capacity jacks - perfect for tight-fitting applications. Welds directly onto trailer with no burn through and has 25-11/16" retracted height.


The jack works like it is supposed to and has no problems lifting the loaded trailer.


The trailer Jack arrived very quickly. It was boxed extremely well to ensure that there was no damage upon arrival. The service was excellent also. This heavy duty Jack will be installed on my dump trailer. I look forward to ordering more products. Thank you etrailer.


The jacks have been working very well for us. We use them on our fire pump test trailer. They are used to support the 3000 gals of water in the tank while we are performing pump capacity test for local fire depts. They replaced lighter duty jacks. We replaced two last year and just purchased two more this year to complete the change over.


This jack was poorly assembled, the jack was barely useable, as the gears barely touched causing it to skip and strip the tops of the gears. We had to use a hydraulic jack to lift the trailer off of the ball to separate the truck and trailer. Took the jack completely apart, spent two hours to adjust shims that are washers to raise main gear to turn handle gear. The gears are now fully engaged together, the jack works correctly as it was designed.


Great product, heavy duty, works like a charm !!!

has preformed flawlessly a good investment.
Eric C - 07/02/2021


Great jack, once installed. Could come with a mounting bracket or some way to mount it. If we didn't have welding capabilities there wouldn't have been a way to attach it. Other than that, it is a great jack that works a lot better than the small flimsy jack that came on our 16' enclosed trailer.


good however i puchased jacs for my fith wheel no good on that one


Just got the trailer-jack and haven't welded it on yet, so this is just about the service- Helen was superb! Highly knowledgeable and helpful and the whole process was painless and the product was here before I was even ready to put it on. will definitely be my first stop for trailer parts!


great replace for factory one. works as it should


Worked great. Great price.


The jack is working very well
when it
comes time for another one I will be contacting you
Thank You

still doing good
Keith M - 08/02/2017


Looks like a good sturdy jack.


A great heavy duty jack for an awesome price.

Doug S - 01/07/2021


great service and quick delivery


I ordered several items for a trailer conversion. Took me a minute to navigate the website but eventually found everything I needed. Orders shipped promptly. Everything was as I had hoped. Great experience.


Everything good


Well made and went in easy. etrailer follow up and shipping speed is awesome.


E trailer is a Great Company to deal with and the product ships on time


Hitch works flawlessly after one year. Can't complain about the quality of price.

Great no issues at all
Clint E - 11/08/2020


Great product heavy duty just as advertised thank you so much for the quick delivery the info videos really sold me on the product great job.


Good quality works as promised


Great products. Easy to order. Fast Del ivery


I purchased this jack for a 15xp Brush Bandit chipper. My original jack (Not this company) broke and so I found this online. It has been great for me. No issues for over a year.



Show More Reviews

See what our Experts say about this Bulldog Trailer Jack

  • Replacement Jack for Load Max Trailer
    There may be a replacement jack that works for you from our selection, which I'll link for you, though we do not have a jack that is designed specifically to fit your trailer. You can select from the amount of lift and weight capacity you need, such as the Bulldog Square Jack # BD180455, which offers 28-1/2" of lift and has a 7.200 lb capacity.
    view full answer...
  • Replacement for Fulton Jack 70SP28F
    There is a solution for you, though we do not have any replacement parts or a replacement itself for your Fulton 70SP28F. I looked up the specs for your jack and found that it was a sidewind jack that had a 4,000 lb lift capacity with a retracted height of 22" and extended height of 51". There aren't many jacks with similar dimensions, but a replacement that can work for you is the Bulldog Square Jack with Footplate # BD180455, which has a 7,200 lb lift capacity, retracted height of 25-11/16",...
    view full answer...
  • How Does the Bulldog 7.2K Square Jack Mount
    Bulldog Square Jack # BD180455 is a weld-on application. It would need to be welded to a flat, steel surface. Welding should be performed by a professional welder to ensure the jack maintains its capacity (7,200 pounds).
    view full answer...
  • Inner, Outer, and Drop Leg Measurements for Bulldog Square 8,000 Pound Trailer Jack
    Bulldog Square Jack # BD180455 has 3 tubes. The outer tube is 3 inches square. The inner leg is approximately 2-1/2 inches square. The outer tube thickness is approximately 1/8 of an inch thick and the inner is between 1/16 and 1/8 inches thick. The drop leg, which can be removed, is 2 inches square and the wall thickness is the same as the inner leg (between 1/16 and 1/8). The measurements are approximate because they vary ever so slightly due to manufacturing tolerances.
    view full answer...
  • Dimensions of Bulldog Square Jack with Footplate BD180455
    I went to our warehouse and grabbed a sample of the Bulldog Square Jack with Footplate # BD180455 so that I could measure it for you. Since I am not certain exactly what measurements you need I will provide as many as possible that do not already appear within the jack's displayed specs. Overall length of grey outer tube: 23-inches. Cross section of grey outer tube: 3 x 3-inches. Cross section of Inner Tube: 2-1/2 x 2-1/2-inches. Tube Wall Thickness: 1/8-inch for inner and outer. Rate...
    view full answer...
    Image 1 for
  • Replacement Parts For 7,000 LB Sidewind Trailer Jack
    We do offer several replacement parts for sidewind jacks, however the parts we carry are made for certain manufacturers. The replacement hardware kit we offer for a 7,000 lb sidewind jack is designed for Bulldog Jacks, and is part # BD500156. This kit includes 3 gears and the pins. Here are the dimensions of the gears included in this kit: Small gear dimensions Overall height: 13/16 inch Overall diameter: 1-7/16 inch I.D.: 1/2 inch 12 teeth Large gear with single slot Overall height:...
    view full answer...
    Image 1 for
  • Replacement Handle Recommendation for Bulldog Sidewind Trailer Jack # BD180455
    If you have the Bulldog sidewind trailer jack # BD180455, then you can replace the sidewind assembly with part # BD800144. It will include the handle, gear and bushing kit.
    view full answer...
  • Replacement Handle for a 7,200 Pound Bulldog Square Jack
    If you have the Bulldog sidewind trailer jack # BD180455, then you can replace the sidewind assembly with part # BD800144. It will include the handle, gear and bushing kit. For the Bulldog square top wind jack # BD180354 or # BD180304, the replacement topwind handle is # BD500344. It will include the crank, bolt and nut. I included a couple video reviews for you as well.
    view full answer...
  • Replacement Lower Bushing And Washer For The Ram TJD-7000S Jack
    The Replacement Sidewind Gear Kit for etrailer and Ram Square, Direct Weld Jacks - 5,000 or 7,000 lbs Item # TJD-7000S-GR has the replacement pins in the kit. The washer can just be replaced with any washer that will fit over the shaft. You just want to make sure it is the same thickness as the bent washer. As far as the tube shaft bushing under the horizontal gear, unfortunately we do not currently offer that replacement part. It would require replacing the jack. I recommend going with...
    view full answer...

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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Patrick B
Installed by:
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Employee Michael H
Expert Research:
Michael H
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Employee Adam R
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Employee Adele M
Updated by:
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Employee Laura H
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