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

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

Item # 3370091410H

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Retail:$195.58

Our Price: $171.97

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Trailer Jack

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Shipping Weight: 67 lbs

Arrives before Christmas with Ground or Free Shipping.
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Buyers Products Trailer Jack - 3370091410H
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Lowest Prices for the best trailer jack from Buyers Products. Buyers Products Heavy-Duty 4" Square Jack w/ Side Pin Drop Leg - Sidewind - 26" Lift - 12K part number 3370091410H can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (9)
  • Q & A (5)
  • Videos (1)
  • Photos
  • Why etrailer?

Buyers Products Trailer Jack - 3370091410H

  • Side Frame Mount Jack
  • 12000 lbs
  • Sidewind Jack
  • Drop Leg
  • Buyers Products
  • Fixed Mount Jack
  • Weld-On
  • 27 Inch Lift
  • With Foot


The Side-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 side-mounted pin to drop the leg. Ideal for RVs, construction trailers and triaxle trailers, each 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.


  • 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)
  • Corrosion-resistant black powder coated finish
  • Handle included
  • Carbon steel construction

Note: If using dual jacks, use the front pin style of this product.



0091410H Buyers Products 12 Inch Heavy-Duty Side Pin 4 Inch Square Jack with Handle






California residents: click here


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


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




Video Transcript for Buyers Products Trailer Jack - Side Frame Mount Jack - 3370091410H Review

Speaker 1: Today we're taking a look at a Heavy Duty Four-Inch Square Jack with the side-pin drop leg. Now the side-pin heavy duty square jack features a spring return drop leg that allows easier expanding and retracting. So the spring return is activated by pulling this sturdy side mounted pin to drop or extend the leg. It's a really nice design. It's also how you retract it, so when you're ready to retract it, you pull this, and the leg will go back up into the outer tubes here. Keep your hands clear when you do that, because it is spring return, so that will engage very, very quickly.Now this type of jack is ideal for RV's, construction trailers and tri-axle trailers.

This jack has a 10,000 pound dynamic, and 12,000 pound static capacity. The four inch square tube features a weather resistant black powder coated finish, and it includes the foot pad here at the base. Now the foot pads really help distribute weight, so they help spread out weight, which is really helpful, especially on softer surfaces. So if you're working on sand, gravel, grass, soil, anything like that, the foot plates come in handy, so it's a nice design. It's welded on to the bottom of this most inner tube right here.The unit's made from steel.

Again, it features that durable powder coated finish on it to resist rust and corrosion. The foot pad measures eight inches by eight and a half inches. We're looking at carbon steel construction. It does come with the handle, so this handle allows you to easily operate the jack. I just have the hardware loosely installed, so you would definitely want to tighten that down for your application, but I just have it it in there to show that the handle's included.

The attachment hardware is included, and the weld-on handle bracket, that's included as well. That holds your handle safely out of the way when the jack's not being used.You'll notice that right here we have two grease zerks. These allow for easy maintenance, so you can attach a grease gun to these, pump in the grease and it keeps those internal components lubricated as needed. I'm just going to spin it around here, show you that there's really nothing special about this side of the jack. Really simple design.Now a few measurements I want to go over with you real quick.

Retracted it measures around 28 inches from top to bottom, so if this is in the fully retracted position from bottom to top, measures around 28 inches. Extended, but not with the drop leg extended, so just using the handle to full extend, that increases the bottom to top measurement to about 40 and a half inches, which gives us a jack travel of 12 and a half inches, and then the drop leg, located right here, it has actually five adjustment holes. I just had one in the third one, but it has five adjustment holes, which offers an additional 13 and a half inches of travel. So the five adjustment holes are separated on center by three and three-eighths inches. That's going to be your incremental height adjustment when using the drop leg, so the total amount of travel possible with this jack is 26 inches.That's going to do it for today's look at the Heavy Duty Four-Inch Square Jack with the side-pin drop leg.


Customer Reviews

Buyers Products Heavy-Duty 4" Square Jack w/ Side Pin Drop Leg - Sidewind - 26" Lift - 12K - 3370091410H

Average Customer Rating:  4.9 out of 5 stars   (9 Customer Reviews)


- 3370091410H
by:

Installed the jack today, customer was extremely satisfied. Couldn't believe how fast it shipped! 682815



- 3370091410H
by:

Exactly what I ordered, arrived on time & installed without a hitch! 514651



- 3370091410H
by:

Friendly professional staff Fair price Excellent service Good product 728368



- 3370091410H
by:

THESE WORK AS ADVERTISED 721259



- 3370091410H
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. 720784



- 3370091410H
by:

I bought 2, they seems to be heavy duty, nice wide base, I'm putting them on a triple axle trailer. Thanks for the fast delivery 688543



- 3370091410H
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 671802



- 3370091410H
by:

Just what I wanted 637137



- 3370091410H
by:

good 629287


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Ask the Experts about this Buyers Products Trailer Jack

Do you have a question about this Trailer Jack?


  • Replacement Caster Wheel Jack for 2 Horse Slant Trailer
  • If your horse trailer's jack has a caster wheel it is probably a bolt-on tongue jack like Bulldog # BD165412 or # BD165411 rather than a weld-on jack like # 3370091410H. These two Bulldog jacks are both rated for 1200-lbs of trailer tongue weight (appropriate for your 7K trailer) and both have a steel wheel; the only difference is the amount of lift which is 16-inches with # BD165411 and 19-inches with # BD165412. Both use a 3-bolt mount as shown in the photo.
    view full answer...

  • 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 - 12,000 lbs # BD182513 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...

  • Do Replacement Rod, Screw and Nuts for Square Jacks Only Fit Certain Jacks
  • The Replacement Rod and Nut for etrailer and Ram Square, Direct Weld Jacks # TJD-12000-RODNUT, along with the Replacement Screw and Nut Kit for 12000-lb Capacity Bulldog Jacks # BD500217 and Replacement Screw and Nut Assembly for Bulldog Square Jacks - 10K TW # BD500250 only fit specific jacks and are not universal parts. So unfortunately you will need to know the exact brand and model of jack you have in order to try a replacement part that fits. If that is not something you can find,...
    view full answer...

  • Is Replacing Gears of Buyers Products Heavy-Duty 4" Square Jack # 3370091410H Common
  • In general the Buyers Products Heavy-Duty 4" Square Jack w/ Side Pin Drop Leg # 3370091410H does not have a reputation for wearing out the gears or them failing over time. I'd be shocked if you had an issue with them. Especially in a situation like yours where you said it would be overkill for the application. That said I am sure we could help you get replacement gears if needed but at this time we do not carry them.
    view full answer...

  • Dimensions of Buyers Products Heavy-Duty Square Jack
  • I have a number of dimensions for you of the Buyers Products Heavy-Duty 4" Square Jack w/ Side Pin Drop Leg - Sidewind - 26" Lift - 12K # 3370091410H. It has a 4" square tube, an 8" x 8-1/2" foot pad, is 28" tall when it is retracted and 40-1/2" when it is extended. That means it has a total of 12-1/2" of travel. I have added a link to a video review of this jack for you to check out as well.
    view full answer...


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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Cole B
Written by:
Kristina F

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