Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 6,000 lbs - Qty 2

Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 6,000 lbs - Qty 2

Item # JB-20

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Stromberg Carlson Camper Jack - JB-20
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  • Stabilizer Jack
  • Slide-Out Supports
  • 6000 lbs
  • Stromberg Carlson
  • 34 Inch Lift
In a single Jack-in-a-Box carton, you'll find 2 slide-out supports with the ability to stabilize up to 6,000 lbs each. The jacks adjust between 20" and 34". Powder coated bases and zinc-plated channel brackets resist corrosion. Call 800-298-8924 to order Stromberg Carlson camper jack part number JB-20 or order online at etrailer.com. Free expert support on all Stromberg Carlson products. Guaranteed Lowest Price and Fastest Shipping for Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 6,000 lbs - Qty 2. Camper Jack reviews from real customers.


  • All Info
  • Reviews (149)
  • Q & A (18)
  • Videos (1)
  • Photos
  • Why etrailer?

Stromberg Carlson Camper Jack - JB-20

In a single Jack-in-a-Box carton, you'll find 2 slide-out supports with the ability to stabilize up to 6,000 lbs each. The jacks adjust between 20" and 34". Powder coated bases and zinc-plated channel brackets resist corrosion.


Features:

  • Stabilizer jacks for camper slide-outs
  • U-Channel brackets straddle frame member for secure positioning
  • New folding handle allows jack to store in small compartments
  • Powder coated or zinc-plated parts resist corrosion


Specs:

  • Height: 20" - 34" tall
  • Weight capacity (per jack): 6,000 lbs
  • Quantity: 2 supports
  • 1-Year limited warranty


JB-20 Stromberg Carlson Jack in a Box Slide Out Stabilizer - 20" to 34" Tall - 6,000 lbs - Qty 2







Video of Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 6,000 lbs - Qty 2


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




Video Transcript for Stromberg Carlson Camper Jack - Stabilizer Jack - JB-20 Review

Today were going to review part number JB-20. These are the Stromberg Carlson Jack in the Box Camper Slide-out Stabilizer Jack Set. These stabilizer jacks are designed for your campers slide-out. Theyre designed to go under the slide-out when its extended to help eliminate any sway inside the camper. They do have a U shape top thatll fit most of your slide-out frames. They do have a nice black powder coat finish to resist corrosion and the screw in the top part that extends out is also zinc plated for corrosion resistance.

This part number does contain two jacks. Each jack as a ten thousand pound weight capacity and they are adjustable between 20 inches and 34 inches and I have them in those dimensions right now. This one is full retracted, so if we measure the height its going to be 20 inches. This one I have fully extended and as you can see its 34 inches tall. These jacks do come with a one year warranty.

Now a little note, you do not want to just these to level or life a slide-out room, because they could occur damage to the slide-out mechanism. These are only used to stabilize it. What you would do is, slide your slide-out out to your desired position and then you place these stabilizing jacks under each corner. The best thing is, the further each jack is that can placed towards the outside of the slide-out the more stable it would be. These jacks will typically fit best on the tubes that extend and retract your slide out.

Now these stabilizing jacks, you can pull the treaded rod out of the base without cranking it as you can see here and push it in or pull it out, so its not necessarily you do not necessarily have to use the nut and the handle on top, because there is a rubber bushing on the inside, which will help hold this screw secure in the base. Now if there is slop or it extends to easily, you can remove this top and theres a set nut on the inside that you can tighten to help firm up the screw release moving in and out. Now basically you can also extend it out by this handle thats welded onto the nut. If you turn this clockwise you can see it will extend it out also or you can just pull it out once you get to the position you want it to be at. You can turn this nut down to the base and that would lock it into that position.

Again these jacks do come with a one year limited warranty. That should do it for the review on part number JB-20 the Stromberg Carlson Jack in the Box Camper Slide-out Stabilizer Jack Set. .


Customer Reviews

Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 6,000 lbs - Qty 2 - JB-20

Average Customer Rating:  4.7 out of 5 stars   (149 Customer Reviews)

In a single Jack-in-a-Box carton, you'll find 2 slide-out supports with the ability to stabilize up to 6,000 lbs each. The jacks adjust between 20" and 34". Powder coated bases and zinc-plated channel brackets resist corrosion.

- JB-20
by:

Easy to operate and snug up to slide. Really helped stabilize the whole trailer. The slide has the sofa and dinette so it gets a good bit of use and added weight intermittently. Simplicity in design was a real plus here. 310420


Comments

Surprising how many neighbors want to borrow them when camping to test on their slide. Most can feel the difference. Simple adjustment mechanism clearly is well made, it has been adjusted many times to fit many slides on many campers.

Larry S - 10/17/2017

29492

- JB-20
by:

These jacks work great,with a little grease on the nut washer and threads, you can jack the side of the trailer up. You have to be carefull that you don't over jack the slide out to much or you won't have a even seal around the slide out. I have a trailer with two slide outs on one side and when out, the trailer leans to that side. This helps take that load off the tires and springs and level the trailer and also help stabilize it. I have them at a 4 star because one out of four jacks is very hard to adjust. Will be getting with etrailer. 365484



- JB-20
by:

As per your request pictures of my slide jacks installed. 468235



- JB-20
by:

These are great. I bought three sets of them. They store compactly and can be stored in the original box. They really help to relieve the strain on the slide out tracks. They take a little time to set up, but not too bad. Raising and lowering the jam nut on the threaded bolt is a little bit of a chore, but I figured out to hold the tube and get the nut spinning to run itself up and down the bolt. There is a model out there that has an easier lift/lower/lock mechanism, but the weight rating is significantly lower than this model. The others are probably strong enough for almost any slide, but I always prefer heavier over lighter. 316028



- JB-20
by:

Excellent product and customer service. I know I will be needing more parts for my camper and I will order from this place again!!! I know I'm not using these as they are intended, but this is what works for me. 557438



- JB-20
by:

It is still a little chilly here in SD to do any camping yet, but when the Jack-in-the-box arrived i just had to try them out. And as described they work perfectly. They took out all the bounce in the slide out. The camper is now rock steady and this is greatly appreciated. I would recommend to anyone that has a slide out to order these jacks. I'm sure you will be just as impressed as I am. 73225



- JB-20
by:

received the slide out jacks, they worked perfect and solved our movement issues. We appreciate the speed of delivery and the great site you have set up. We will certainly be ordering more items for our new camper from you in the near future....... 91715



- JB-20
by:

Excellent product,works very well. We have a 35 foot Forest River RV. It has two slide outs,the middle slide out is 18 feet in length and comes out almost 3 feet. Putting the JB-20's in place makes the RV solid. I also put them on the frame at the door to help with coming in and out. I would suggest this product to any RV owner who has slide outs who want extra support. They are easy to adjust ,place and remove when ready to breakdown camp. 374121



- JB-20
by:

We are full timers. Our 40 ft Montana is solid, but I use the Jack in the Boxes regularly and they do work great. Thanks 666984



- JB-20
by:

Arrived right on time. 660081



- JB-20
by:

Excellent product, easy to install, would definitely recommend these! 657275



- JB-20
by:

Bought these a year ago. My camper stays put in a campground year round and wanted to get the “bounce” out of it. These worked great. At the end of the year I took them down and the slides worked as they should. These jacks took the majority of the bounce out and worked great!! 649991



- JB-20
by:

Excellent product knowledge and customer service 645070



- JB-20
by:

My Jack-In-A-Box slide out stabilizers jus arrived and ahead of schedule. I look forward to using the this weekend and I am sure the will word as promised. Thank you Anna for all your help with this purchase. 641565



- JB-20
by:

Great jacks. After one year in use they still look like new. No rust. Operates smoothly. 602192



- JB-20
by:

Just received this product. And have to say the quality looks to be very good. Won't get to try them until next summer. Shipped out fast, but then again I never have had any issues with products from etrailer. And I like there info videos on products they carry. Very helpful in deciding on making the purchase. 596907



- JB-20
by:

Support stands is just what I ordered but not intending to use until weather warms up some as it is only in the 30 degrees in the daytime here. The products need to be packed a bit better as they rubbed together during shipping and wore on the paint will need touched up to look good and prevent rusting. 596415



- JB-20
by:

I just received my order and I'm very pleased with them. They arrived on the day I was told. I will be ordering from your company again. Thank you very much . 594783



- JB-20
by:

I have a pair of these i have used for 2 seasons. My rig has two slides so i ordered another set. They work great. 594473



- JB-20
by:

The product arrived in excellent condition and exactly when it was scheduled. The price was fair and the customer service was very good. I would purchase from this company in the future. 592384



- JB-20
by:

I like this product. I have ideas for uses other than tip out support. I will have to order some extras. 591130



- JB-20
by:

Thanks for the great stabilizers and the speedy service. 590247



- JB-20
by:

Love the new version of jacks. Elbow and de-flappers work just fine... 568786



- JB-20
by:

1st time using seems to be very stable 565571



- JB-20
by:

Very happy with the quality of the JB-20 Jack in the box camper slide out supports. They have really help stabilize the outer edge of our slide out on our travel trailer. Very easy to setup and remove them. Our neighbor in the campground had these and after visiting with them we decided to purchase them. Very easy to order and fast shipment and arrival. Thanks 559684



- JB-20
by:

Good product does the job good price 557487



- JB-20
by:

As ordered delivered on time. Works wel l. 545072



- JB-20
by:

Easy to use and stabilize slide out wel l. 525724



- JB-20
by:

Product was shipped and received very quickly. The product was made with high quality material at a competitive price 514942



- JB-20
by:

Good price 510308



- JB-20
by:

Works very well 510185



- JB-20
by:

Worked great on supporting two slides on a 36 foot fifth wheel camper 483613



- JB-20
by:

Perfect fit. Work great. 481798



- JB-20
by:

Another great product and quick shipping from etrailer. Have ordered numerous items always pleased 481497



- JB-20
by:

These will extend the life of our Camper's slide. 465543



- JB-20
by:

As described, thanks 459052



- JB-20
by:

The jacks were exactly as described. They work as expected to stabilize the slide on our trailer. 450281



- JB-20
by:

I bought these because they are taller then most. only used them once so far but they seem to work perfectly. would recommend them. 447258



- JB-20
by:

Received on time promised. 441528



- JB-20
by:

Works great. Just as described 427359



- JB-20
by:

These have worked great to support my large slide out 427101



- JB-20
by:

Everything was perfect! Great prices, easy ordering and fast shipping!! Thanks Etrailer.com 426890



- JB-20
by:

Items worked like a charm. Slide out was study and no bounce. Great product. 414569



- JB-20
by:

Helped prevent movement with teenage bo ys 410636



- JB-20
by:

Stabilize our camper considerably. I would recommend this product and I would purchase them again from this company. 406410



- JB-20
by:

I bought these jacks as supports for our slide out since we will be leaving the slide out open all year long. They have worked great and are still in place one year later. I haven't had one issue yet. I definitely recommend this product, great purchase. 403139



- JB-20
by:

Highly recommend them! Got them quickly and they were reasonably priced. You must have these if you want to insure the stability of your trailer. Easy to set up and I use them every time we open our slide outs. They make a HUGE difference in stabilizing our RV. George helped us and we hope to do business with him again! 384944



- JB-20
by:

Just received looks great will use in 2 days 382418



- JB-20
by:

Works as advertise. etrailer is the best, service and shipping all around. 380953



- JB-20
by:

Does what it says. Great shipping time. Not my first purchase and want be the last. 378718


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Ask the Experts about this Stromberg Carlson Camper Jack
Do you have a question about this Camper Jack?


  • Recommended Stabilizer Jacks for 2016 Forest River 2608WS Travel Trailer
  • I can't find the factory stabilization specs online, but I think you are correct in your assumption. To replace these jacks I recommend the Ultra-Fab Power Twin II Electric Stabilizer with Dual Motors - 30" Lift - 6,000 lbs # UF39-941705. This allows individual side adjustment up to 30 inches of lift. For a manual option, I recommend the Ultra-Fab Power Twin II Manual Stabilizer for Trailers and RVs - 30" Lift - 6,000 lbs # UF39-941704. For stability under the slide I recommend the...
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  • Recommended Slide Out Stabilizer for Trailer or Motorhome Slides
  • The Leveling Scissor Jack Set - 30" Lift - 5,000 lbs - QTY 2 # JSC-30 is not intended as a slide stabilizer but can work in that capacity if your slide is only 30 inches off the ground max. There are specific stabilizers intended for this purpose that may be a better option. I recommend the Jack-in-a-Box Camper Slide-Out Support Set - 20" to 34" Tall - 10,000 lbs - Qty 2 # JB-20 or the 31-45 inch tall # JB-30 rated for the same capacity.
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  • Operation and Sturdiness of Stromberg Carlson Camper Jack # JB-20 when Fully Extended
  • I was able to go out to our warehouse and test out the strudiness of the Stromberg Camper Jack # JB-20, and check out the handle for you. I found that the handle does rotate down so that it won't stick out after you have set the height of the jack. I also found that they are very sturdy once the handle and nut are tightened to the base, even at the fully extended height. I have to tell you though, after spending the time to fully extend it and rotate the nut to the bottom, I had some...
    view full answer...

  • Jacks to Lift a Truck Bed Camper Out of a Truck Bed
  • Jack-in-a-Box Camper Slide-Out Support Set # JB-20 was designed to support slide outs. What you are looking for is a truck bed camper jack. We have several, see link, ranging from 1,000 to 4,000 pounds capacity and max lift height from 57 to 67 inches. The highest capacity models are # CXHD and # CX74 at 4,000 pounds at 57 or 67 inches lift height, respectively.
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  • Recommended Slide-Out Stabilizer Support for a Large 5th Wheel Slide-Out
  • The Ultra-Fab slide out supports # UF19-960003 will have a combined weight capacity of 1,400 pounds and an adjustable height between 26-47 inches. I like the quick-release handle for extremely easy height adjustment. You simply press the button to release the inner tube and adjust as necessary. I think these will be just fine for your large slide-out. The Stromberg Carlson slide-out support # JB20 or # JB30 both have a 10,000 pound weight capacity per jack. The # JB-20 can adjust between...
    view full answer...

  • Recommended Slide-Out Stabilizer for 2014 Forest River Georgetown XL on 2013 F-53 Frame
  • Thank you for the photo of your Class A Georgetown XL which is built on the 2013 Ford F-53 chassis. If you are looking for more stability in your slide-outs when you are stationary at your campsite then instead of changing out your jounce bumpers to one of the SuperSprings kits like # SSR-183-54-1 I suggest using a slide-out stabilizer. Slide-out stabilizers will give you the more solid feel you're looking for without altering the RV's ride quality on the road. We offer these in sets...
    view full answer...

  • Can Slide Out Stabilizer Jacks be Used on a Slide Out with a Cable Pulley System
  • You would use stabilizer jacks # JB-20, after the slide out has been extended so it does not much matter how the slide out operates. As long as there is space on the bottom of the slide out for the jacks to hold it you can use this set. I have included a link to a video review of this jack set for you.
    view full answer...

  • Will Using Front to Back and Side to Side Stabilizers and Jacks Damage the Frame on a Trailer
  • Stabilizer jacks such as # UF39-941705 are not meant to do any lifting, just support weight and make it NOT feel like you are on a boat when you move about inside your trailer. So the chance of causing frame damage to the trailer is statistically zero. There is no specific place you have to mount the stabilizer so it can be as near or far from the wheels as it has to be. You will want to place it in the frame where the side to side movement is most likely. We also have slide-out...
    view full answer...

  • Stabilizer Jacks for the Front of an Enclosed Toy Hauler Trailer
  • The stabilizer jacks, # JB-20, are made to help support slide-outs on travel trailers and would not be the best option for your application. What I recommend is a pair of scissor jacks like # UF48-979031, one on each side of the trailer frame. You can actually use a power drill with the correct socket to raise and lower the legs to make it easier and faster. I assume that you have one in the trailer since it is hauling a drag car and all. You could use bit # UF48-979005.
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  • Recommended RV Slide Out Support Stabilizer Jacks For 2007 Keystone Sprinter 29
  • The slide out supports or stabilizers like the Ultra-Fab Slide-Out Supports for Motor Homes - 26" to 47" - Qty 2, # UF19-960003, are somewhat universal fit. You will want to make sure your heigh adjustment range of the support is within your needs and the capacity is enough to support your application. The bracket is the part that you want to ensure will support your particular slide out. This Ultra-Fab support has a U-Channel bracket with and inside width of 4-3/4 inches and a heigh...
    view full answer...

  • Diameter of the Outside Tube of the Jack-in-a-Box Camper Slide-Out Support Set # JB-20
  • I went out into our warehouse and measure the outside diameter of the outside tube of the Jack-in-a-Box Camper Slide-Out Support Set # JB-20 and found that it is 3-7/16 inches.
    view full answer...

  • Recommended Slide-Out Support Jacks for 28 Foot Trailer
  • We have exactly what you're looking for, the Stromberg Carlson Camper Slide-Out Supports, part # JB-20. Two supports are included which can extend from 20-34 inches in height. Each jack is capable of supporting 10,000 lbs. If you needed jacks that were a bit taller, the # JB-30 jacks extend from 31-45 inches tall and has the same 10K capacity per jack. The Ultra-Fab # UF48-979004 jacks you mentioned extend from 11-17 inches, and most likely wouldn't be tall enough. I've linked you...
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  • How To Support the Slide-Out On a 2019 Grand Design Transcend 28MKS
  • I do have an option for you but the Valterra Folding Manual Stabilizers part # 020106 are most likely too short for your slide-out. Instead you can use the Jack-in-a-Box Camper Slide-Out Support Set part # JB-20 (if permitted by the manufacturer) as these will reach up to 34" tall and will be perfect height for most slide-outs. They also have a 6,000 lb weight capacity and come with a one year warranty. If your slide out is more than 34" off the ground we have the Jack-in-a-Box Camper Slide-Out...
    view full answer...

  • Will Ultra-Fab Wheel Stabilizers Work to Limit Movement When Inside Keystone Passport Camper
  • The Ultra-Fab Super Grip Chock Wheel Stabilizers # UF21-001091 that you referenced are a great solution to prevent the tires from rocking and causing front-to-back motion when you are parked and inside the camper. I like these stabilizers because the pivoting louvers help provide a better grip on the tire's tread to better stabilize the trailer. I've attached a review video of the Super Grip Chocks for you. If you're also looking to add some overall stability, the Jack-in-a-Box Camper...
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  • Stabilizer Jacks for Slide-Out on 2017 Thor Freedom Elite
  • Slide-out jacks like the Jack-in-a-Box Support Set # JB-20 are a basically a universal fit as long as the height adjustment is appropriate for your RV. The # JB-20 will adjust between 20 to 34 inches and each jack will support up to 10,000 pounds.
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  • How Many Stromberg Carlson Trailer Jacks # JB-20 Should I Use On Slide Out Room of Camper
  • You will want to place a jack on each corner of the slide out room. The jacks will usually fit best on the tubes that extend and retract the slide out room. The further each jack can be towards the outside of the slide out room, the more stable it will be. The item you selected, Stromberg Carlson Trailer Jack, part # JB-20, comes with a quantity of 2 jacks.
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  • Troubleshooting Slide-Out Supports and Landing Gear Retracting Issue
  • The Jack-in-a-Box Camper Slide-Out Support Set # JB-20 should be installed with just the load bearing tension of your slide out. They are made to stabilize your slide so that it is not moving your RV side to side. They have the ability to support up to 10,000 lbs so if you have other landing gear issues like settling, I definitely recommend checking them regularly as the jacks will continue to support weigh and if the RV settles too much it could bend the frame of your slide out.
    view full answer...

  • Diameter of Foot Plate for Jack-in-a-Box Camper Slide-out Supports
  • The bottom foot plate of the Jack-in-a-Box support jacks, part # JB-20, measures 4-1/2 inches in diameter.
    view full answer...


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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael H
Expert Research:
Reno H
Expert Research:
Jameson C
Updated by:
Laura H
Photos by:
Sam P
Updated by:
Mike S

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