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Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg - Sidewind - 26" Lift - 12K

Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg - Sidewind - 26" Lift - 12K

Item # 3370091415H
Retail:$320.76
Our Price: $251.48
You Save: $69.28
Trailer Jack
Shipping Weight: 66 lbs
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Great Prices for the best trailer jack from Buyers Products. Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg - Sidewind - 26" Lift - 12K part number 3370091415H can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (61)
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Buyers Products Trailer Jack - 3370091415H

  • Car Hauler
  • Enclosed Trailer
  • Fifth Wheel Trailer
  • Gooseneck Trailer
  • Utility Trailer
  • 10001 lbs or More
  • Sidewind Jack
  • Weld-On
  • Leveling Jacks
  • Tongue Jacks
  • 26 Inch Lift
  • With Rectangle Foot
  • Carbon Steel
  • Buyers Products


The Front-Pin Heavy Duty Square Jack from Buyers Products features a spring-return drop leg that allows easier expanding and retracting. The spring return is activated by pulling a sturdy front-mounted pin to drop the leg. The Square Jack is often used in pairs, connected to each other, for the heaviest duty lifting. Ideal for RVs, construction trailers and triple-axle trailers, the jack has a 10,000 lb (dynamic) and 12,000 lb (static) capacity. The 4" square tube features a weather-resistant black powder coated finish, and includes a footpad. Handle is included.


  • Easy retraction and expansion with the spring return mechanism
  • Strong, durable 4" square construction will handle up to 10,000 lbs (dynamic) and 12,000 lbs (static)
  • Use in pairs for even heavier-duty applications
  • Corrosion-resistant black powder coated finish
  • Handle included
  • Carbon steel construction

0091415H Buyers Products 12 Inch Heavy-Duty Front Pin 4 Inch Square Jack with Handle

Compare to Bulldog BD183802




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Customer Satisfaction Score:


Customer Reviews

Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg - Sidewind - 26" Lift - 12K - 3370091415H

Average Customer Rating:  4.5 out of 5 stars   (61 Customer Reviews)


by:

The trailer jack I purchased has made it much easier to hook up my chevy to the trailer. The spring component designed to make lowering and raising the jack easier stopped working the second time I used the jack. It took several weeks for me to get the jack after I placing the order.



by:

No Handle arrived with my order. Packaged poorly and the jack sustained damage. etrailer made it right and sent us the missing handle to the Jack. Although the plate to the top was severely damaged they didn't replace that. Which I ordered online for approx $X. which should have been covered by etrailer sending it without being properly packaged.



by:

Nice heavy jack to replace the one that was on my trailer originally.



by:

GREAT ITEM DIRECT FIT FAST SHIPPING



by:

The product arrived on time as was as advertised . The jack was easy to install and has performed flawlessly from the first day.
I would definitely purchase from etrailer again.



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Excellent service and great deliver tim e.



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Working great on dump trailer that was factory equipped with way too small of a jack.



by:

The product is great but arrived in packaging that did not properly protect the jack. The box was torn and the jack itself had some deep scratches and missing paint



by:

When I purchased this leg I planned on replacing them as a set. I could not find the same leg that was reversed for the passenger side. Although the legs work perfectly and I love the retractable spring action. You will definitely need to know how to weld, flip the gear inside and have a drill and tap for new grease fitting location. I installed them so the release pins were on the outside.



by:

Super quick shipping and exactly what we needed for our Big Tex dump trailer.



by:

Everything came as planned!



by:

Heavy Duty trailer Jack works and functions as described. etrailer was quick to get it out. Seems well made and should last many years.



by:

The jack installed easily onto my trailer, and it has no problem lifting the trailer when fully loaded. No complaints.



by:

Was very good value for the money. Used on my trailer that carries a 8k pound excavator. There was not a lot of grease in the top, so I opened the lid and put a BUNCH more in. I expect this to last a very long time.

Two recommendations if you need a new trailer tongue jack:
1) My trailer had a 5k lb jack on it before, which was technically enough because it only had maybe 2500lbs tongue weight... but it was absolutely a nightmare to use because of the weight and felt flimsy, go bigger, you wont regret it.
2) I made a huge mistake of not attaching to my truck and lowering the tailgate to make sure I could make a sharp turn with the tailgate down, that mistake cost me an $800 tailgate when I got busy and tried to move my truck really quick.



by:

i recently purchased a heavy, very heavy duty jack from etrailer #3370091410h. have not installed as of yet but i'm sure i'm going to be very pleased . very well built. solid construction. two grease zerks at the gear points and pivots. after i install my jack and use it for a while i will update my review. quick shipping. it came quicker than i expected. my only concern is that its poorly packed do to the weight of the jack. the box had been ripped open several times and taped back up (ups?) i still give it a 5 star rating for jack quaility and etrailers quality service



by:

It work! Price was competitive and it arrived pretty quickly.



by:

Installed on a 30' enclosed trailer for my Broncos. Worked great!



by:

Very good product



by:

I received my order soon after ordering. I have installed the jack on my stock trailer and am very pleased with it. My old jack had definitely see better days and was getting very hard to crank, etc.



by:

Received your trailer jack it’s a Weld on tape and being Friday Labor Day weekend won’t get it welded in till probably Tuesday or Wednesday but I will keep in touch thank you so much for the prompt service


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See what our Experts say about this Buyers Products Trailer Jack

  • Recommended Replacement Jack for Exiss Horse Trailer
    I might have an option for you but I don't know what exact jack you have on your Exiss Horse Trailer. That said, they are usually welded so there's not really a bolt-on replacement. The Buyers Products Heavy-Duty 4" Square Jack part # 3370091415H is a good option to start with, it has a 12,000 lb capacity and features a weld-on install. I have attached a full list of our jacks below as well if this won't work.
    view full answer...
  • Replacement 12,000LB Landing Gear Jacks For 30' Gooseneck Trailer
    We have the Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg # 3370091415H that matches the design of the jacks on your gooseneck trailer. We will only have the jack assemblies and will not have the crossover tube or handle extension. If those parts are also needed they will need to be fabricated from steel tubing you can get at your local steel supplier.
    view full answer...
    Image 1 for
  • Replacement Trailer Jack For Rice Trailer That Currently Has Ram 14K Jacks
    The Ram 14K jacks don't have a replacement rod and nut available like the 12K # TJD-12000-RODNUT and are no longer available in that capacity. I recommend changing out your jacks for the 12K option. You can use the Bulldog Side Wind Jack Assembly - 12,500 lbs # BD182700 or the Buyers Products # 3370091410H or # 3370091415H as a replacement. These are all excellent products for the price to help your trailer function as intended.
    view full answer...
  • Is There An Electric Motor Compatible With The Buyers Square Jack 3370091415H
    While we do offer several other powered jacks, we do not have a motor that is compatible with the buyers # 3370091415H at this time (July 2023). The only powered jack we have are either a-frame style like part # EJ-3527-BBX, or fifth wheel landing gear like # UF17-943010.
    view full answer...
  • Are Replacement Rod And Nuts Available For A 2001 Circle J Riata Horse Trailer Front Jack
    The only rod and nut replacement we currently offer, part # TJD-12000-RODNUT, is a bit smaller than the one you have so the only option that we can offer would be a complete replacement of the jack. You'd want to check the GVWR of the trailer and choose a jack that's rated for at least 20% of the GVWR. For example, the Buyers Products Heavy-Duty 4" Square Jack w/Front Pin Drop Leg # 3370091415H can handle 12,000lbs and has 26" of lift capacity. It has a weld-on installation and comes...
    view full answer...
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  • Parts Needed for Home Builit Triple Axle Flat Bed Trailer
    Thanks for all of the info on the parts you're looking for. From those specs I recommend the following for you: Wheel and Tire combo # AM34834 Buyer's Products Square Jack # 3370091415H Curt Lunette Ring # C48560 Electric Drum Brakes for 7,000 pound Axles # AKEBRK-7-SA
    view full answer...

Do you have a question about this Trailer Jack?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Written by:
Kristina F

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