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Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K

Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K

Item # TJD-12000SP-R2
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Our Price: $127.85
Trailer Jack
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Shipping Weight: 63 lbs
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Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K 26 Inch Lift TJD-12000SP-R2
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Pull the side-facing plunger pin on this heavy-duty jack to release the drop leg. The durable jack screw offers increased strength. The built-in grease zerk allows effortless greasing. Sidewind crank included. Lowest Prices for the best trailer jack from etrailer. Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K part number TJD-12000SP-R2 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (30)
  • Q & A (10)
  • Videos (1)
  • Photos
  • Why etrailer?

etrailer Trailer Jack - TJD-12000SP-R2

  • Side Frame Mount Jack
  • 10000 lbs
  • Sidewind Jack
  • Drop Leg
  • Fixed Mount Jack
  • Weld-On
  • etrailer
  • 26 Inch Lift
  • With Foot

Pull the side-facing plunger pin on this heavy-duty jack to release the drop leg. The durable jack screw offers increased strength. The built-in grease zerk allows effortless greasing. Sidewind crank included.


  • Heavy-duty utility jack lets you raise and lower your trailer
    • Ideal for agricultural and commercial applications
  • Drop leg with spring return increases overall extension for maximum adjustability
    • Plunger pin positioned to the side
  • Durable 1" jack screw allows for heavy lifting
  • Twin thrust bearings make extending and retracting jack easy
  • Effortless greasing with built-in grease zerk
  • Black painted inner and outer tubes
  • Sidewind handle has curved edges - no sharp ends
    • Handle can be secured for travel with included weld-on clip
  • Footplate minimizes sinking in soft ground
  • Weld-on installation


  • Height:
    • 28" Retracted
    • 40-1/4" Extended
  • Total lift: 25-3/4"
    • Screw travel: 12-1/4"
    • Drop leg travel: 13-1/2"
  • Lift capacity: 10,000 lbs
  • Support capacity: 12,000 lbs
  • Drive pin diameter: 1"
    • 3/8" Diameter mounting hole
  • Outer tube width: 4"
  • Inner tube width: 3-1/2"
  • Footplate dimensions: 8-1/4" long x 8" wide
  • Adjustment hole spacing: 3-3/8" from center of hole to center of hole
  • 1-Year warranty

Ram Dims

TJD-12000SP-R3 Ram Square Direct Weld Jack - Drop Leg w/ Spring Return - Side Wind - 12-1/4" Screw Travel - 10K

Replaces TJD-1200SP-R2

Video of Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K

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

Video Transcript for etrailer Trailer Jack - Side Frame Mount Jack - TJD-12000SP-R2 Review

Today we're going to be taking a look at a square direct weld jack with the included drop leg. This is a heavy duty jack, that's going to let you raise and lower your trailer. This jack has a lift capacity of 10,000 pounds, and it has a support capacity of 12,000 pounds. The drop leg is going to feature a spring return. That's going to increase overall extension for maximum adjustability. It's got a spring loaded plunger pin, that's positioned to the side for easy access.

The drop leg is going to offer 13 and a half inches of travel. There's going to be 5 total mount holes. I got it mounted on the third, excuse me the fourth mount hole. There's one more. You can kind of see that there.

We got one, two, three, I'm in hole number four, and then there's a fifth hole in there as well. I just wanted to expose a little bit of the drop leg so you can actually see that it does come with it. The mount holes on the drop leg are going to be separated on-center, apart from one another, by about 3 and three-eighths of an inch. The drop leg is going to offer 13 and a half inches of additional travel, apart from the jack, and that 13 and a half inches can be adjusted in 3 and three-eighth inch increments. Internally, this jack is going to feature a durable inch and a quarter jack screw. That's going to allow for heavy lifting.

Maintenance is also pretty simple with the jack. Let me rotate it here so that you can see what I'm talking about. Right here, these two components, these are going to be the included grease insert fittings. That's going to allow you to attach your grease gun to it, pump the grease in, and lubricate the internal components. When it comes to the outer tube, the inner tube, the handle, and the foot plate, we're looking at a steel construction with a black powder coat finish.

It's going to do a great job at lasting a long time, as well as resisting rust and corrosion. This is going to come with your side-wind handle. It's got a nice curve design to it so you don't have to worry about any sharp ends. The handle can be secured for travel by using the included weld-on clip. That'll secure the handle when you're travelling. The handle, and the hardware to get it attached, is included. You can see at the bottom there that the foot plate is going to be welded to the drop leg. The foot plate's a really nice size. If we take a measurement of that going this direction, we're looking at 8 inches by 8 and a quarter. That's going to do a great job at spreading out the applied weight, it's going to help minimize sinking and soft ground, and it's going to increase overall stability. This is a direct weld-on installation. The outer tube is a square design. That's going to measure 4 inches by 4 inches. The inner tube right here, square design, it's about 3 and a half by 3 and a half. Drop leg, square design, 3 inch by 3 inch. When it comes to the retracted and extended heights, I measure the overall height. With this fully retracted, and the drop leg at it's lowest setting, this gives us a retracted height from the bottom of the foot plate to the top here, again, fully retracted, of 28 inches. Extended, that measurement increases to 40 and a quarter. The jack is going to offer a total travel of 12 and one-quarter of an inch. The drop leg is going to offer that additional 13 and a half inches that can be adjusted in about 3 and three-eighth inch increments. When it comes to adding a cross tube, if you want to connect this to another jack, adding a cross tube you can do that. There's a couple of measurements to be aware of. The drive pin diameter, the diameter of this pin right here, that's going to be 1 inch. The mount-hole diameter is going to measure three-eighths of an inch. That's going to do it for today's look at the square direct weld jack with the included drop leg. Again, it's going to have a lift capacity of 10,000 pounds and a support capacity of 12,000 pounds.

Customer Reviews

Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K - TJD-12000SP-R2

Average Customer Rating:  4.9 out of 5 stars   (30 Customer Reviews)

Pull the side-facing plunger pin on this heavy-duty jack to release the drop leg. The durable jack screw offers increased strength. The built-in grease zerk allows effortless greasing. Sidewind crank included.

- TJD-12000SP-R2

ships fast good product. 729766

- TJD-12000SP-R2

Delivered as promised. Looks good , we don’t anticipate any problems but will let you know after installation Thanks Jim 596255

- TJD-12000SP-R2

thankyou 592926

- TJD-12000SP-R2

We found a solution to an out of stock part. Good job! Thank you for your follow up...... Strauss Construction 621820

- TJD-12000SP-R2

I buy products from etrailer every week almost to replenish my supply for all the trucks and trailers we keep up. I have found they ship fast and efficiently and they sell good products. I have been very satisfied to find them as a vendor and will continue to buy the great products they sell. 598291

- TJD-12000SP-R2

Product was an exact fit just like they said.Samantha G was very helpful in purchasing this product thank you much 481609

Working great, its on a 40 stock trailer that we haul bulls in
John - 03/06/2019


- TJD-12000SP-R2

called after 1st order was back ordered and was helped to find a jack very like the one orderedfror same money operator helped me re order and jack showed up on second day thanks alot for our help 480123

- TJD-12000SP-R2

Great selection 750261

- TJD-12000SP-R2

i purchased and installed this jack about a year ago on a home-made trailer and it has been great. i used it as a center support jack and bought a piece of pipe to extend the handle to the outside of the trailer and i have had 0 issues. it was easy to install and has been working flawlessly. Thanks for the quality product etrailer! 722582

- TJD-12000SP-R2

Easy to navigate their web site to order from. Lots of products also. I purchased my jack stand because of the price and free shipping option. When I received my jack it was excellent quality and as I said, you can't beat the price. I think I received it within 5 days including the weekend. At any rate I will buy again and I couldn't be happier. Thank you. 712037

- TJD-12000SP-R2

Using to repair a damaged jack on trailer. Jack is a little bit looser than original but I think it will work out great. 706050

- TJD-12000SP-R2

Great job! Always delivers on time. Used the jacks on my service body that I mounted a crane on for outriggers. 695692

- TJD-12000SP-R2

Great jack and service. Works wonderfully. Well buy again when needed . A+ company. 662643

- TJD-12000SP-R2

I ordered this jack on Friday late evening over the Easter holiday and received it Monday. Fast shipping I’m going to have it installed on my PJ dump trailer. 634336

- TJD-12000SP-R2

Received the jack very quickly. Have not installed yet due to time and weather. 617352

- TJD-12000SP-R2

Had wonderful service on the phone with Paula. Placed the order for parts and a new jack Monday morning and got delivered Wednesday morning! 608801

- TJD-12000SP-R2

A very heavy duty jack. Great price and fast shipping. 602892

- TJD-12000SP-R2

Great product fast delivery 596854

- TJD-12000SP-R2

Was having trouble locating parts for a ram 12000 Jack these guys show parts on their sight but when I called parts weren't in stock but they had a replacement unit that I could use for parts .shipped out that day , quick service.will use again. 588626

- TJD-12000SP-R2

This jack is a replacement for a factory installed jack of a much lower rating that has failed. I can buy a lot more jack from etrailer for the same or less than the local dealers wanted for a direct replacement. I placed my order and was happy to see it was shipped and arrived to me in 2 days. It was packaged well, almost to well. Do you buy those staples to close boxes by the ton? I feel a lot better unhooking the trailer with a load now. 576544

- TJD-12000SP-R2

I put it onto a large dump trailer, clearly much heavier then the original. I am very happy with it it has out preformed my expectations 573339

- TJD-12000SP-R2

Great jack. Works perfect! Just as good as the Bulldog. Very fast delivery. Will do business again! 527368

- TJD-12000SP-R2

Good performance after a year. The spring return is good and the operation of the jack performs very well. 521421

- TJD-12000SP-R2

Good jack, easy to install. Packaging left a little too be desired and the jack was scuffed up on arrival. 513769

- TJD-12000SP-R2

Good product and fast shipping! Thank you etrailer! 489156

Show More Reviews

Ask the Experts about this etrailer Trailer Jack

  • How to Safely Use the Square Direct Weld Jack TJD-12000SP-R2
    If you aren't familiar with a jack like Square Direct Weld Jack # TJD-12000SP-R2 it can have a little bit of a learning curve. Here is how it works: As you probably know the jack leg retracts quickly. First make sure the jack is not supporting a load. If the drop leg is extended the operator should place a foot on the foot plate to control the return of the drop leg. To lower the drop leg turn the pin to the disengaged position. The bracket around the pin is shaped so that when...
    view full answer...
  • Comparing the Pro Series Jack Part # PS1400950376 and the RAM Jack Part # TJD-12000SP-R2
    Yes, both the Pro Series Square Jack part # PS1400950376 and the Square Direct Weld Jack part # TJD-12000SP-R2 are made of steel. The Pro Series jack has a one year warranty and the RAM jack also has a one year warranty. They both have a 10,000 lb lift and 12,000 lb support capacity although the RAM jack does offer a bit more lift at 13-1/2" compared to the 12-1/2" of the Pro Series jack. Essentially, the jacks are pretty much the same for the exception of brand. I have attached a review...
    view full answer...
  • Ram Square Jack Replacement Screw Assembly
    We have several replacement parts for the internals of a Ram brand square jack. The Replacement Rod and Nut # TJD-12000-RODNUT will fit the following Ram jacks: # TJD-12000SP-F2 10K Sidewind with 12-3/8 inches of travel w/handle # TJD-12000SP-R2NH 10K Sidewind with 12-1/4 inches of travel w/o handle # TJD-12000SP-R2 10K Sidewind with 12-1/4 inches of travel w/handle Some other replacement parts for these Series jacks are: # TJD-12000-GR Replacement Gear Kit # TJD-12000-BR Replacement...
    view full answer...
  • Repair Kit for Ram Series 12000 Trailer Jack
    To repair a Ram Series 12000 jack, like # TJD-12000SP-R2, we have the Gear Kit # TJD-12000-GR or the Replacement Rod and Nut # TJD-12000-RODNUT. Or you could need both. I just depends on what the problem is exactly.
    view full answer...
  • Comparing the Square Direct Weld Jack TJD-12000SP-F2 and TJD-12000SP-R2
    The main difference between the Square Direct Weld Jack part # TJD-12000SP-F2 and part # TJD-12000SP-R2 is the location of the plunger for the drop leg. The former has the plunger on the side of the crank handle and the latter has the plunger adjacent to the crank handle. Furthermore, the former has a 1-1/4" diameter jack screw and the latter a 1" diameter jack screw. Aside from the location of the plunger and size of jack screw, the jacks are essentially the same.
    view full answer...
  • Gear Kits for Single Speed Ram or etrailer Jack
    It is not possible for me to tell you with any degree of certainty that you can retrofit the Replacement Gearbox for etrailer and Ram 2-Speed Square Jacks # TJD2SP-12900-GBX for use with a single speed Ram jack though there are replacement gears available. If you have the TJD-12000 Series jacks such as # TJD-12000SP-R2 there is the Replacement Sidewind Gear Kit # TJD-12000-GR as well as Replacement Rod and Nut for etrailer and Ram Square, Direct Weld Jacks # TJD-12000-RODNUT which you...
    view full answer...
  • How to Replace Interior Ram Jack Rod and Nut # TJD-12000-RODNUT on 12000 Series Jacks
    Good news! I was able to get a exploded diagram as well as a set of instructions on how to replace the rod and gears # TJD-12000-RODNUT in the # 12000 Series Ram Jacks made after 2012. I have attached them to this page for your convenience. Basically, you will not need to remove or cut the steel plate inside the top of the jack to do this. You will want to remove the cap, then the roll pin that holds the cross shaft into the leg, this will free up the smaller gear that will be removed...
    view full answer...
  • Dimensions for Replacement Square, Direct Weld Jack Inner Tube with Spring-Return Drop Leg
    The drop leg portion of the Replacement Square, Direct Weld Jack Inner Tube with Spring-Return Drop Leg # TJD-12000SP-FIP measured about 3" square and is about 19" tall. Please note that this part is a direct replacement for jacks # TJD-12000SP-F2, # TJD-12000SP-R2, or # TJD-12000SP-R2NH so if you don't have one of these you will likely need to do some modification for this to fit.
    view full answer...
  • Replacement Nut for Ram Series 12000 Jack
    The Replacement Rod, Nut, and Grease Trap # TJD-12000-RODNUT is a fit for the 12000 series of Ram or etrailer jacks such as # TJD-12000SP-R2. It is specifically designed for square, direct-weld TJD-12000 Series jacks; the lift nut will fit 3-1/2" x 3-1/2" square jack inner tubes. If this matches the description of your jack it will work for you.
    view full answer...
  • Will the Bulldog Powered-Drive Kit Work On RAM 12K Jacks
    Yes, we have heard back from our customers that the Bulldog Powered-Drive Kit for Single-Speed Jacks part # BD1824200100 will also work on 12,000 lb RAM jacks like the Square Direct Weld Jack part # TJD-12000SP-R2. I would have to agree as well because they both use a 1" diameter drive shaft. I have attached the customer review confirming fit for you.
    view full answer...

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Info for this part was:

Updated by:
Lindsey S
Updated by:
Sarah W
Updated by:
Ronnie R
Updated by:
Hannah L
Updated by:
Mike S
Expert Research:
Michael H
Installed by:
Cole B
Written by:
Amanda M

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