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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

Our Price: $195.69
You Save: $18.98
Trailer Jack
Shipping Weight: 60 lbs
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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. Great 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 or call 1-800-940-8924 for expert service.
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  • Reviews (732)
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etrailer Trailer Jack

  • Car Hauler
  • Enclosed Trailer
  • Fifth Wheel Trailer
  • Gooseneck Trailer
  • Utility Trailer
  • 9001 - 10000 lbs
  • Sidewind Jack
  • Weld-On
  • Leveling Jacks
  • Tongue Jacks
  • 26 Inch Lift
  • With Rectangle Foot
  • Steel
  • etrailer

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
  • 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-R2 Ram Square Direct Weld Jack - Drop Leg w/ Spring Return - Side Wind - 12-1/4" Screw Travel - 10K

Replaces TJD-1200SP-R3

Item # TJD-12000SP-R2

Customer Satisfaction Score:

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:  4.8 out of 5 stars   (731 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.


Very well built. Paint isn't the kind that will last very long but I expected that. The rate the leg drops compared to the number of cranks is a bit slow but that makes it a lot easier to lift my heavy trailer. Make sure you grease it before using. Didn't have much grease in it.

Jenny N.


I hope that you will get a lot of use out of the jack. As for the paint we recommend keeping a can of Rustoleum on hand to touch up the jack from time to time.


Product was what to be expected no issues there. Etrailer shipped fast and we never have an issue with them. Buy from Etrailer you won't regret.


Great product I have been swapping out to these jacks as I upgrade my trailers


the Jack w/crank was great, easy to ins tall


Ram makes great product customers very happy


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


Delivery was quick and was what I wante d.


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.



After a year of use and abuse it’s working great and no problems.


I busted my 20 year old jack coming out of camp, got this replacement quickly and it works great !!!

Leo R.




I purchased this jack a year ago. Works great. our choice for all our trailers maintenance and repairs parts


etrailer was very helpful in informing me that the jacks that I originally ordered were out of stock and had a long lead time and we very helpful to identify a replacement jack that was in stock. The jacks were in my possession in 4 days after the order was placed, good job!.


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!


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.


Very solid. I am using two of these for a water trailer that is 10,000 lbs full. They have never been anything but smooth and the spring loaded foot saves LOTS of cranking time.


The Gears inside the unit are real instead of precut stamp steal


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.


Jack was delivered in excellent shape in a box of the Appropriate size. The picture and description accurately depicts the jack delivered. It will be used on a old trailer that in the past the tongue had been held up by a piece of wood. Thanks etrailer.


This is at least the seventh time I have ordered from and everytime I have had great service and an excellent product to install on my customers projects. Thanks again, will be shopping with you again soon.


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.


Great price and the best quality THANKS i will be ordering another one for my other 2 trailers


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.


Product looks great package was a little rough when I got it bolt was missing for jack handle nut was there


Jack work perfectly after mounting, and was priced competitively.


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


Jacks were good quality and came with the crank handle. Would buy again.

Show More Reviews

See what our Experts say about this etrailer Trailer Jack

  • 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.
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  • Can Two Square Direct Weld Jacks 25-3/4 Lift - 10K Be Used Together
    The Square Direct Weld Jack part # TJD-12000SP-F2 can be used in tandem. The only thing you would need to do this would be a cross shaft which would be some sort of bar that attaches the two output shafts to one another. This is assuming you want both jacks to turn at the same time and not have independent operation with two handles. We don't have any cross shafts for this but you should be able to find the parts locally as it's just a steel pipe with holes drilled to pin the pipe to the...
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  • 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.
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  • Can the Drop Leg Plunger Pin Be Relocated on the Square 10K Direct Weld Jack
    I do have an option for you but the drop leg plunger pin cannot be relocated, you will instead need to purchase a different jack with plunger pin in the correct location for your needs. The Square 10K Direct Weld Jack for example is offered with two different plunger pin locations, part # TJD-12000SP-R2 for side or part # TJD-12000SP-F2 for front. In other words, you'd need to remove the existing jack and weld a new one into place with the correct plunger pin orientation.
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  • 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.
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  • Can The Square Direct Weld Jack # TJD-12000SP-R2 Be Operated With Impact Wrench?
    The Square Direct Weld Jack # TJD-12000SP-R2 is only intended to be operated with the included handle. Using an impact would cause damage to the gears inside the jack as well as the vertical screw rod.
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  • 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 the pin...
    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.
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  • 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...
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  • 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...
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    Image 1 for
  • How To Re-Assemble The RAM TJD-12000SP Trailer Jack
    I went ahead and reached out to RAM and they explained to me that to re-install your inner leg to your RAM jack like the Square Direct Weld Jack - Drop Leg w/ Spring Return # TJD-12000SP-R2NH, you are going to need to re-install the lower pin, replace the lower miter gear, install the gear set and spacer on cross shaft. Re-install the pin into the upper gear and shaft, and test the jack to ensure smooth operation. Finally, re-install the cap and two screws and you're all set. I have...
    view full answer...
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  • 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...
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  • Solution for Ram Square Direct Weld Jack that Has Broken Return Spring
    The return springs in landing gear jacks are not replaceable or repairable unfortunately so if you have the # TJD-12000SP-R2NH.
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  • Handle Needed For Sidewind etrailer Square Direct Weld 10K Jack
    The handle that you need for the Square Direct Weld Jack - Drop Leg w/ Spring Return part # TJD-12000SP-R2NH is part # TJD-12000-HD. This handle replaces the handle on all of the TJD-12000 Series square jacks. It comes with the bolt and hardware needed to install.
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  • Availability Of A Drill Adapter For The TJD-12000SP-R2NH Square Jack
    Unfortunately we do not offer a drill adapter for the square jack # TJD-12000SP-R2NH. The only way to raise and lower the jack will be with the manual crank handle # TJD-12000-HD. Bulldog used to make a powered drive kit that worked with these jacks, but that has not been available for quite some time.
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  • Are There Replacement Jack Parts for Jack on OTM Gooseneck Trailer
    I do have an option for you but you'll have to replace the jack on the trailer to get it back up and operational. It's simply not feasible to find replacement parts for a jack this old. It's likely the company who made the jack is no longer in business or no longer offers replacement parts for this due to the age. I recommend the Square Direct Weld Jack part # TJD-12000SP-F2 which has a forward facing return spring or part # TJD-12000SP-R2 which has a side facing return spring. These jacks...
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  • Is Specific Amount of Ground Clearance Required when Installing Direct Weld Jack # TJD-12000SP-R2NH
    There isn't a specific amount of ground clearance required when installing a jack such as Square Direct Weld Jack # TJD-12000SP-R2NH. You would mount it however it is needed for your trailer. The overall height of the jack when fully retracted is 28 inches. When fully extended and the drop leg all the way out as far as it can go the height is 40-1/4 inches. Based on this information you will be able to figure out the position that will work best on your trailer.
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  • Does Jack Drop Leg With Spring Return Require Manually Pushing the Leg Down
    Yes, you will have to manually push the drop leg down on the # TJD-12000SP-R2NH. Once you get it to the position you want you will re-pin it to keep it in place. This also means it will automatically retract when you pull the pin out so you don't have to raise it back up with your hand or foot.
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  • Replacement Parts for etrailer Square Direct Weld Jack
    It sounds like you're talking about the rod and nut on the # TJD-12000SP-R2NH. We have the following replacement parts available: -Replacement Rod and Nut for etrailer and Ram Square, Direct Weld Jacks # TJD-12000-RODNUT -Replacement Sidewind Gear Kit for etrailer and Ram Square, Direct Weld Jacks # TJD-12000-GR -Replacement Return Spring for etrailer and Ram Square, Direct Weld Jacks # TJD-12000-RSP -Replacement Bearing for etrailer and Ram Square Jacks # TJD-12000-BR -Replacement...
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  • Is There a Replacement Screw and Nut for TJD-7000S Ram Sidewinder Jack
    The Square Direct Weld Jack w/ Footplate - Drop Leg - Sidewind - 28-7/8" Lift - 7,000 lbs # TJD-7000S does not have the replacement screw rod and nut assembly available as a replacement part. You will need to replace the entire jack. I recommend the Square Direct Weld Jack w/ Crank - Drop Leg w/ Spring Return - Sidewind - 25-3/4" Lift - 10K # TJD-12000SP-R2 which will have replacement parts should you ever need them. I've attached a video to assist.
    view full answer...
    Image 1 for
  • Is There a Drill Adapter Which Is Compatible With 1 Shaft On a Square Trailer Jack?
    While there is not a drill adapter for the Handle Shaft # TJD-12000-SHABUS on a Square Jack # TJD-12000SP-R2 I do have some ideas for you. First you can have the handle shaft machined down to accept the Ultra-Fab Speed Socket # UF48-979005. This includes a 12 point 3/4" socket which will also fit a standard 6 point head. Another option would be to cut the end off a Crank Handle # TJD-12000-HD and weld on a drill end. This means you do not have to modify the shaft on the jack.
    view full answer...
  • Replacement Landing Gear Jack for Ram Follow 12k Jack on Trailer
    Send me the pictures you have and I'll see if it's something we can get.
    view full answer...
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  • Replacement for Pro Series 12,000 lb Trailer Jack Needing New Screw
    To get your Diamond C dump trailer back in working condition you'll need to swap out the entire jack as that internal drive screw isn't available as a replacement. For a replacement jack I recommend going with our etrailer Trailer Jack # TJD-12000SP-R2NH along with the Handle # TJD-12000-HD because we still have replacement parts for our trailer jacks in case you end up needing them. Also, the parent company of Pro Series is in a transition phase right now so there's no guarantee this...
    view full answer...
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  • 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:

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

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