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  1. Trailer Jack
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Pro Series Square Jack with Footplate - Drop Leg - Topwind - 28-5/8" Lift - 5,000 lbs

Pro Series Square Jack with Footplate - Drop Leg - Topwind - 28-5/8" Lift - 5,000 lbs

Item # PS1400800383
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Our Price: $80.44
Trailer Jack
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Shipping Weight: 20 lbs
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Drop leg jack with integrated footplate welds directly onto your application, has 22-7/8" retracted height and offers superior side-load strength for your agricultural or industrial needs. Includes topwind crank. Lowest Prices for the best trailer jack from Pro Series. Pro Series Square Jack with Footplate - Drop Leg - Topwind - 28-5/8" Lift - 5,000 lbs part number PS1400800383 can be ordered online at or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (413)
  • Q & A (0)
  • Photos
  • Used (1)
  • Why etrailer?

Pro Series Trailer Jack - PS1400800383

  • Side Frame Mount Jack
  • 4001 - 5000 lbs
  • Topwind Jack
  • Drop Leg
  • Weld-On
  • Fixed Mount Jack
  • 29 Inch Lift
  • With Foot
  • Pro Series

Drop leg jack with integrated footplate welds directly onto your application, has 22-7/8" retracted height and offers superior side-load strength for your agricultural or industrial needs. Includes topwind crank.


  • Superior side-load capacity compared with round jacks
    • Square design provides additional support for side loading
  • Durable, long-lasting steel construction
  • Outer and outer tubes have a black paint finish
  • Topwind handle has smooth, ergonomic design for easy cranking
  • Drop leg increases overall extension for maximum adjustability
  • Direct-weld design
  • Integrated footplate base


  • Outer diameter of outside tube: 2-1/4"
  • Bracket height:
    • 22-7/8" Retracted
    • 51-1/2" Extended
  • Total lift: 28-5/8"
    • Travel: 15"
    • Drop leg: 13-5/8"
  • Lift capacity: 5,000 lbs
  • Static capacity: 8,000 lbs
  • Limited 3-year warranty

1400800383 Pro Series Square Direct Weld Jack with Drop Leg - Topwind - 15" Travel - 5,000 lbs

1400800376 Eclipse Square Direct Weld Jack with Drop Leg, Topwind, 28-1/2" Travel

California residents: click here

Customer Reviews

Pro Series Square Jack with Footplate - Drop Leg - Topwind - 28-5/8" Lift - 5,000 lbs - PS1400800383

Average Customer Rating:  4.8 out of 5 stars   (413 Customer Reviews)

Drop leg jack with integrated footplate welds directly onto your application, has 22-7/8" retracted height and offers superior side-load strength for your agricultural or industrial needs. Includes topwind crank.


it is holding up very well


The jack i received had a 8K rating and a all black finish. It works great, i installed it on my Kaufman manual tilt trailer. When welding it in, i had to insure the welder was set to a high setting due to the thickness of the material this jack is made from. Excellent purchase.


These are excellent jacks! I ordered two for stabilizers on my truck for use with a 3500 pound crane. Well built, much better quality than I could find locally. The measurements and specs on were accurate and extremely helpful. Great price, shipping was very fast, and free shipping made these an even better deal.


So far great jacks. I replaced the rear stabilizers on my car hauler. The drop leg almost hits the ground so I only have to crank a couple of times.
They seem very strong and are easy to weld.


Should have put these on all my trailers years ago. No more bricks and 4x4's stacked up, just drop the leg, crank it up, and go. Action is smooth and jack is strong and sturdy. Couldn't ask for more.


These jacks are greatly priced and came in a good timely manner excellent tracking service and I will be returning for all my trailer needs thank you etrailer


Excellent service and prompt delivery, installed jack, WD and brake controller the same day it arrived. I was pulling my 24 ft enclosed cargo trailer with my Suburban the nextday. Everything worked great. Thanks for your helpful tech bulletins.


My trailer jack arrived in a timely manner packaged in a bulletproof cardboard box. Item was exactly as described and I am pleased with E-Trailer's service. Certainly a first class operation


This Jack is better than one it replaces. Even has a bigger footprint than the old one. I was going find replacement parts for the old one, but it became more cost effective to just replace it through


Good information on the website and Fast service and delivery


looks good


Great jack it fit my needs on replacing my car trailer jack.


Works well, turns easy


Great replacement jack for bobcat trail er


Good product, good price fast shipping. Works as I’d hoped it would.


The jacks are great the shipping kind was not very well done


Good quality jack for the money. Looks like it will hold up to many years of use. Thanks for the quick delivery as always.


A very heavy duty jack. Excellent value, seems well made. Arrived well packaged - did not eat the box from the inside.


just what I was looking for great price and super fast shipping!


everything was like the site stated. fursure will buy here again. good job!!!!!!!!!!!!!!!!!!!

After a year, jack is holding its own on my car trailer! Still working as new from day one. Thanks.
GMC - 04/16/2014


Great products delivered quickly !


So far the product looks and works grea t.

Working great thus far!
Juan G - 08/20/2015


Works like it should.


Great product. We use these daily on our field site projects. Would highly recommend these jacks.


Product seems to be what I was expecting. Must of all I was impressed with the shipping, they upgraded me free of charge and I received it the second day after I ordered it.

Show More Reviews

See what our Experts say about this Pro Series Trailer Jack

  • Outer Tube Wall Thickness of Pro Series 8,000 lb Jack # PS1400800383
    I pulled one of the Pro Series # PS1400800383 jacks off the shelf for you, and disassembled it in order to get an accurate measurement of the outer jack tube. I found that the wall thickness of the outer tube was .108, or about 7/64 of an inch.
    view full answer...
  • Installing PS1400800383
    The Pro Series Square Topwind Jack with Footplate and Drop Leg, part # PS1400800383, has an overall height when fully retracted and with the drop leg fully inserted, of 22-7/8 inches. You can select an appropriate mounting height for welding the jack to your trailer frame based on having adequate clearance between the bottom of the footplate and the ground when under a typical load. My contact at ProSeries confirms that the outer tube on this jack is designed to be strong enough to allow...
    view full answer...
  • Inner Diameter of Inner Tube on Pro Series Square Jack with Footplate
    I went out to our warehouse to measure the inner diameter of the inner tube of the Pro Series Square Jack with Footplate # PS1400800383. I found the inner diameter to be 1.7 inches. I have attached a photo showing this measurement for you.
    view full answer...
    Image 1 for
  • Drop Leg Jacks Needed for Loading Equipment on a 14,000 lb Equipment Trailer
    The Pro Series Square Jack - Drop Leg w/ Spring Return, # PS1400950376, that you referenced would work well for your trailer, but you would most likely have to do some fabrication to install this jack on each side at the rear. The outside dimension of this jack is 4 inches square. I produced a short video showing 3 jacks, the one you mentioned, the same jack without a spring return drop leg, # PS1400990376, and an 8,000 lb jack, # PS1400800383, that would most likely work also. Two 8,000...
    view full answer...
  • Difference Between Pro Series Trailer Jack # PS1400800383 and Bulldog Trailer Jacks
    I have not heard of any complaints from customers about the Pro Series Trailer Jacks. The # PS1400800383 jack features a zinc plated inner tube and the jack is constructed of steel. The Pro Series # PS1400800383 is comparable to the Bulldog Square Jack # BD190754. Both of these jacks have similar construction and have the same weight capacity of 8,000 lbs. The main reason for difference in price points for each jack is the warranty on the jacks. The Pro Series Jack has a 3 year warranty,...
    view full answer...
  • Square Trailer Jack Recommendation that is 2-1/4 inch Outer Diameter
    The outer tube width of this jack is 2-1/2 inches by 2-1/2 inches but we do have the Pro Series jack part # PS1400800383 which has an outer tube diameter that is 2-1/4 inch by 2-1/4 inch and when fully retracted measures 23 inches which would be very similar to what you have. I attached a review video for this jack for you to check out as well.
    view full answer...
  • 5K Capacity Bulldog Jack Is Jammed and Will Not Raise or Lower Trailer
    According to Bulldog, the jack has been either over extended or retracted and the main screw inside that runs the jack in and out has jammed into the nut. If using a reasonable amount of force won't successfully retract or extend the jack, then Bulldog recommends that the jack be replaced as the screw has been damaged and a replacement part isn't available. The closest replacement to your original jack is part # PS1400800383.
    view full answer...
    Image 1 for
  • Replacement Jack For Pro Series Square Jack 8,000LB Static Capacity
    I recommend replacing your Pro Series Square Jack # PS1400800383 with the Bulldog Square Jack w/ Footplate # BD190754, since the Pro Series jack does not offer replacement parts. The Bulldog does offer replacement parts like the Bulldog Square, 18" Tall Drop-Leg Kit with Pin # BD500270 and Replacement Sidewind Gear Kit # BD5002581360.
    view full answer...

Do you have a question about this Trailer Jack?

Used Items Available
Used Picture for Pro Series Square Jack with Footplate - Drop Leg - Topwind - 28-5/8" Lift - 5,000 lbs

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $79.95
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Reno H
Expert Research:
Reno H
Employee Adam R
Expert Research:
Adam R
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Alexander C
Updated by:
Alexander C

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