1. Trailer Jack
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  3. Side Frame Mount Jack
  4. 1000 lbs
  5. Sidewind Jack
  6. No Drop Leg
Round Swivel Marine Jack w/ Wheel - Bolt On - Zinc - Sidewind - 10" Travel - 1,000 lbs

Round Swivel Marine Jack w/ Wheel - Bolt On - Zinc - Sidewind - 10" Travel - 1,000 lbs

Item # MJ-1206B
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MJ-1206B - 10 Inch Lift etrailer Side Frame Mount Jack
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Corrosion-resistant, clear zinc swivel jack with 5-3/4" wheel is perfect for marine use as well as other recreational applications. Jack has an extended height of 23-1/2", a retracted height of 13-1/2", and a capacity of 1,000 lbs. Lowest Prices for the best trailer jack from etrailer. Round Swivel Marine Jack w/ Wheel - Bolt On - Zinc - Sidewind - 10" Travel - 1,000 lbs part number MJ-1206B can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (114)
  • Q & A (26)
  • Videos (2)
  • Photos
  • Why etrailer?

etrailer Trailer Jack - MJ-1206B

  • Side Frame Mount Jack
  • 1000 lbs
  • Sidewind Jack
  • No Drop Leg
  • etrailer
  • Swivel Jack - Pull Pin
  • Bolt-On
  • 10 Inch Lift
  • With Wheel

Corrosion-resistant, clear zinc swivel jack with 5-3/4" wheel is perfect for marine use as well as other recreational applications. Jack has an extended height of 23-1/2", a retracted height of 13-1/2", and a capacity of 1,000 lbs.


  • Marine jack lets you raise and lower your boat or recreational trailer
  • Swivel design lets you swing jack up for storage, down for use
    • Single bolt-through design provides extra side-load support
    • Convenient 1/2", spring-loaded pull pin secures and releases jack
  • Plastic wheel lets you move your trailer
    • Inner tube rotates with wheel allowing you to move in any direction
  • Sidewind handle has comfortable, grooved grip
  • Corrosion-resistant clear zinc finish for durability
  • Bolt-on installation to the side of your trailer
    • Mounting bracket and hardware included


  • Application: trailers with a frame height from 2" to 4"
  • Bracket height (from bottom of wheel to center of bracket):
    • 13-1/2" Retracted
    • 23-1/2" Extended
  • Travel: 10"
  • Outer tube diameter: 2"
  • Inner tube diameter: 1-3/4"
  • Wheel dimensions: 5-3/4" diameter x 2" wide
  • Mounting bracket dimensions: 6-3/4" long x 5-3/4" wide
  • Handle radius: 7"
  • Lift capacity: 1,000 lbs
  • 1-Year warranty


MJ-1206B Ram Round Swivel Marine Jack - Bolt On - Zinc - Side Wind - 10" Travel - 1,000 lbs

Video of Round Swivel Marine Jack w/ Wheel - Bolt On - Zinc - Sidewind - 10" Travel - 1,000 lbs

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

Video Transcript for etrailer Round Swivel Marine Jack with Wheel Review

Today we're going to be taking a look at and showing you how to install the round, swivel marine jack with wheel. This is a bolt on application, offers 10 inches of travel and 1000 pound capacity, part number is MJ-1206B. Here's what our jack looks like installed on our trailer. As you can see, it's got a really clean look to it, nice oversized handle, here's the important part. Doesn't take a whole lot of effort to operate the jack, which is really nice. We're going to have a full, clear, zinc coating on all of the metal, this is going to give us superior corrosion resistance, which is important on our marine trailers. As you can see here, we're going to have about a 2 inch wide wheel, that does a good job even if we're on sand, or some of the gravel, of spreading out that energy.

In diameter it's 5 and a half inches, so that will help a little bit with getting over that rougher terrain. From the center of our jack to the outermost edge of our handle, it's going to be about 6 and a half inches. You definitely want to make sure that you've got enough room for your handle to turn, but also for your fingers so they don't get caught in there or anything like that. Here you can see, simple operation of our handle. We're going to have a total of 10 inches of travel with the jack. At our jack's highest position, from the ground to the top edge of our trailer, it's going to be about 26 inches.

Now, you can see in our load position, we're going to have about 16 inches from the ground to the top of our trailer. Here you can see the half inch diameter pin, that goes in and locks our jack into position whether we've got it in the upright or in the stored position, there. Really quick, simple operation with it. Here in the center, you're going to see our main pivot bolt. That's also corrosion treated so we're not going to have to worry about any kind of rusting with it.

That allows for very smooth pivot operation, while being really nice and sturdy. Now, our outer tube diameter here, 2 inches. Our inner tube is going to be an inch and 3 quarter. Another great benefit to the jack, we're going to have 360 degrees rotation here on this tire, that's going to allow for pretty easy maneuvering of our trailer. The installation of our jack's a pretty straight forward process. We're going to have, our mounting brackets are going to go on the opposite side of the frame from our jack here.

Our outside brackets are going to line up perfectly with the flange that's on the jack itself. That's going to be a 2 inch difference, a 3 inch difference, or up to a 4 inch difference, so we can go all the way up to a 4 inch thick frame rail, and down to 2 inches wide, so we fit on this rail. We're going to be mounting on the wider rail here, closer to the center. I like to start my brackets by bringing my bolts through the single hole side of both the jack and the backing plate, just like that. You can see the half inch pin that holds our jack from pivoting. When we're using it or when we're not using it we can pivot it different directions. Before we put this on, I want to show you the backing plate has 4 hole locations, so whether you're mounting it on the left side of the trailer or the right side of the trailer, you'll be able to orient that handle either forward or backwards, as you want. It makes it nice, so it gives it 360 degrees rotation before we mount it. Once we mount it, the trailer's probably going to get in the way. What we'll do is just bring our jack, bring that right down and over. If you hold down on one of the bolts, it's going to hold your jack there for you. Bring another bolt in from the bottom side, and that's going to come over and go through our plate again. We'll just thread another nut on there, and that'll have our jack held into position. Then we'll put our nylon lacking nut on it as well. You see how we've positioned these brackets, or these back plates, you want that flat side to be in towards the trailer. You want the ridges that stick up to be outside. We want to find that exact position where we want the jack to be. We, of course, want clearance for our handle when it's upright and when it's lowered, so just adjust it. Inside the frame rail here seems to work pretty good in most applications, that gives us clearance there for our handle. If we we're to put it right there, we could actually go down the road and our handle would rest on top of the trailer, so it wouldn't be hanging down. That might be a really good spot to go with. We want to tighten our bolts down evenly. Now that that's firmly mounted, let's check for operation again. Yeah, it doesn't look like we have to worry about busting our knuckles or anything while we're trying to get it lowered or lifted. It will tuck back in there nicely and the wheel will hang down. Then, mounting it inside of here has a couple of benefits, we don't have worry about hitting our leg on it or bumping it as we're walking around. It just gives it a nice clean look. Now, let's torque those bolts down. That will complete our look at the round, swivel marine jack with wheel, in the side wind configuration, with 10 inches of travel and 1000 pound capacity. Part number is MJ-1206B.

Customer Reviews

Round Swivel Marine Jack w/ Wheel - Bolt On - Zinc - Sidewind - 10" Travel - 1,000 lbs - MJ-1206B

Average Customer Rating:  4.8 out of 5 stars   (114 Customer Reviews)

Corrosion-resistant, clear zinc swivel jack with 5-3/4" wheel is perfect for marine use as well as other recreational applications. Jack has an extended height of 23-1/2", a retracted height of 13-1/2", and a capacity of 1,000 lbs.

- MJ-1206B

The trailer jack was exactly as advertised and easy to install. The order arrived the day that my confirmation said that it would. An overall excellent experience. 539483

- MJ-1206B

Just installed yesterday. Works good. Time will tell. The last tongue jack I bought for my boat trailer seized in 2 years. Saltwater is tough but I expect to get a little more life out of it. 479699

- MJ-1206B

Easy as one two three, had to buy shorter bolts but that was no big deal. 308251

- MJ-1206B

This was surprisingly good quality for the price. It fit my 6x9' utility trailer perfectly, and all I did was hack off the extra length on the bolts when done so I wouldn't snag my trousers on them. I'd highly recommend this jack! 614857

- MJ-1206B


- MJ-1206B

First let me say that Customer Service at etrailer is outstanding. The first jack I tried was recommended for my trailer by a tech but it did not fit my trailer. Customer Service was quick to help me out by authorizing the return and recommending the MJ-1206B jack which arrived in two days. The jack fit fine but there’s some “play” between the mounting bracket and the swivel bracket, and the jack stood slightly off vertical once the weight of the tongue was on it. Unlike a stationary jack there would need to be some amount of play between the brackets so that the jack can easily swivel up and down, which it does and it rolls easily as well. A previous review described a similar condition so it appeared the bolt and space between the two brackets was likely preset correctly although the reviewer said he was able to tighten the bolt somewhat, which I was unable to do. I called customer service and was told there would be some play between the brackets and the jack should operate fine. I need to move the trailer by hand each time I use it so it will get a good test of its durability. Again, customer service is excellent at etrailer! 491135

My MJ-1206B trailer jack continues to function properly after a year of use and makes moving my trailer easy.
Al B - 03/31/2019


- MJ-1206B

I've been buying products from etrailer for many years and they have never failed me. They always answer any questions I send them and they deliver what I order quickly, better than is expected. Good prices, fast service . I don't even think of going anywhere else when I need something for my four trailers. Thanks etrailer ! 482831

- MJ-1206B

Well built and looks good. Trouble is it doesn't drop the tongue down far enough to reach my trailer hitch. No adjustment for that as far as I can see. 621787

- MJ-1206B

Dan Jack works fine after I made a slight mod to it. When change the position of the stand the level to hold the stand the the position you set, would slam in so tight, you needed a hammer to change it back. I took the level off and drilled a hold in the bend of the level and added a washer and cotter key. works great now. Friend of mine had the same problem, he just drilled the hole a little bigger. I tried to attach a couple picture to this email but not sure if it worked. If you didn't get them let me know and I will forward a email that I sent to myself that has them attached. hope you can understand what I'm trying to say. that's why only 3 stars. 635939

- MJ-1206B

I should know better. Items with great prices at another store can be a real let down. So after battling my trailer jack for three years from almost day one, it was time to step up. I looked at a lot of jacks at various trailer, farm implement and parts stores. I was referred to etrailer and figured that I could always send it back and go back to the other store. The jack is great! It came with all the hardware, instructions, and mounted in minutes. 378027

- MJ-1206B

Needed a replacement jack for my boat trailer. Although I have ordered from etrailer before and have always found the quality to be very good, I was not expecting much for the price of this jack. Was very surprised when the jack arrived. Very well built! Solid construction. I expect this will be the last jack I need. 425562

Everything has been good. All the products that I have purchased from you guys are holding up great.
Tony P - 08/27/2018


- MJ-1206B

Works well, good value for price 754899

- MJ-1206B

Great parts at a great price with the best customer service around!! 745826

- MJ-1206B

great product and at a great price. 745313

- MJ-1206B

my salesman nick is great, we seem to be on the same page when ordering parts. i have built 5 trailers now and the last order was perfect. so far so good, thanks 738589

- MJ-1206B

A nice, heavy dolly jack. Quality seemed very good. Search as I did, I still came up short one 3/8-16 nut so had to go to the store to get one. I found the main bearing bolt to be very loose. When I attempted to tighten it up it came to what felt like the end of the threads on the bolt and still allowed a bit more slop than I would have liked in the retracted/stowed position. I expect it will rattle in transit but probably get swamped out by all the racket usually associated with the ball/receiver connection. 737700

- MJ-1206B

I purchased this foldable landing gear so that I could take my trailer into rough territory, to avoid low-clearance situations with the trailer tongue jack. This will work very well. I haven't begun to install it yet, but will wait for better weather. 728851

- MJ-1206B

Great quality and bargain. 726364

- MJ-1206B

Good product and help with the shipping. Very prompt, I will deal with them again for sure 721690

- MJ-1206B

Great follow up service by Donna, Great product, Great Price, Great Service... Well built and it bolted on to my wood splitter w/ 2 x2 tongue without shims. Would buy again and recommend , no more sore back.. 718292

- MJ-1206B

I've had a small aluminum utility trailer for years that we often moved by hand. I finally got one of these jacks and it now is a breeze to push or pull the trailer around--even in the yard. And I can easily disconnect from the car even if loaded. I don't know why I waited so long. 698661

- MJ-1206B

Great replacement for my snowmobile trailer. Still holding up well 1 year later 694818

- MJ-1206B

I been shopping at etrailer for years and love them everything comes so quickly and its always what I need thanks 680104

- MJ-1206B

Thank you for your fast service and prices. The only thing you could add would be free installation. 678004

- MJ-1206B

Dolly wheel is a quality product, easily assembled (4 bolts) on our small camper. This 3rd wheel is helpful to us oldsters when we position the camper for setup, no lifting is necessary. We've had similar before and have been pleased to have the use of this item, knowing it will be dependable and will provide good service.. 673022

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Info for this part was:

Expert Research:
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Expert Research:
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Expert Research:
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Expert Research:
Jeffrey L
Video Edited:
Jacob T
Video by:
Kathleen M
Installed by:
Cole B
Installed by:
Randy B
Updated by:
Ronnie R
Updated by:
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Written by:
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