bing tracking image
  1. Trailer Suspension Parts
  2. Dexter
  3. U-Bolt Kits
  4. Camper
  5. Car Hauler
  6. Utility Trailer
U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts

U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts

Item # APUBR-10
Retail:$52.14
Our Price: $34.34
You Save: 34%
Trailer Suspension Parts
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Need help with installation?
Locate installers near me
Mount your round, 1-3/4" diameter axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates and nuts included. Great Prices for the best trailer suspension parts from Dexter. U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts part number APUBR-10 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (471)
  • Q & A (0)
  • Videos (2)
  • Photos

Dexter Trailer Suspension Parts - APUBR-10

  • U-Bolt Kits
  • Camper
  • Car Hauler
  • Utility Trailer
  • Round Axle - 1-3/4 Inch
  • 4-1/4 Inch Long
  • 2000 lbs
  • 3/8 Inch Diameter
  • Dexter

Mount your round, 1-3/4" diameter axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates and nuts included.


Features:

  • Attaches trailer axle to leaf springs
  • Includes:
    • (4) 4-1/4" Long U-bolts (175643)
    • (2) U-Bolt plates for 1-3/4" springs (117535)
    • (8) 3/8"-24 Hex nuts (38N)
  • Spring seats required for mounting axle to leaf spring sold separately


Specs:

  • Axle diameter: 1-3/4"
    • Typical 2,000-lb axle
  • Spring width: 1-3/4"
  • Dimensions: see below


U-Bolt Diagram



K71-730-00 U-Bolt Kit for 2,000-lb Round Trailer Axles

Replaces APUBR-10





Video of U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts

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




Video Transcript for Redline Round Trailer Axle U-Bolt Mounting Kit Review

Randy: Hey guys, it's Randy here at etrailer.com. Today, we're going to be taking a look at a replacement U-bolt kit. This is going to be designed for the 2000 pound axles, looking for an inch and three-quarter axle diameter. You can see how they're designed to fit around your axle with an incorporated plate here and hold that axle to your spring pack.Now, I think it's crucial anytime you replace an axle that you replace these U-bolts. Over time, of course, they're going to get stressed and they're going to get strained. They can even stretch out on you.

And basically by getting a new set, not only do we have new hardware, so we don't have to worry about any cross-threaded situations, we get new lock washers and a new plate down here, by getting these new U-bolts, you can rest assured that your axle is going to be held securely to your spring.When we just throw our old U-bolt kit back on there and we start torquing it down, there's no way for us to know for sure that it's actually holding to the values that we want. So definitely keep that in mind. I think that anytime I replace an axle, I always get a new U-bolt kit for it. Talk to our customer, explain to them the benefit and let them know that by replacing that you get that peace of mind and you know that you're not going to have any issues with it down the road. And oftentimes it's hard to get the old nuts off.

They're usually rusted onto the U-bolts and you generally have to wind up cutting them. So in my mind, if you're ordering an axle, definitely get a replacement U-bolt kit. So when you do get everything there, you're not running around trying to find it. It's a very cost-effective way to freshen everything up and get it ready to go.Now, when we install our U-bolt kit, essentially we'll take two of the U-bolts and they need to go around our axle. In our case, our axle's sitting on top of the spring so we put the spring perch right on the bolt that sticks out, because that's going to be sitting right in there, right in the middle.

Then our plate needs to go on the opposite side of that. And if we look down low, you'll see that bolt's also going to come through the center hole on that. The two outside holes, we've got our U-bolts that come down through. Then we're going to place a lock washer and we're going to place a nut on each one. Once we've got that done, we need to equally tighten these down to get them nice and snug.

Then we'll torque them to specifications. Now we'll just head over to the other side and repeat that same process there. We'll be ready to go..

Customer Satisfaction Score:


Customer Reviews

U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts - APUBR-10

Average Customer Rating:  4.7 out of 5 stars   (470 Customer Reviews)

Mount your round, 1-3/4" diameter axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates and nuts included.

by:

after one year axle is very very rusty as well as the hangers and hubs, not sure why but not happy with the price vs quality of product



by:

I purchased this kit for the standard 5' x 8' 2,000 lb. trailer from Lowes. I did an axle flip and added larger tires. This is the perfect kit for this trailer. It went on easy, and the bolts were slightly longer. Also the bolts in this kit were fine thread instead of course thread. Overall an improvemet over the factory hardware and I had no issues. Shipped in a timely manner and packaged well.

I highly recommend this kit if you plan on flipping the axle or need a replacement.



by:

The parts where better then the factory parts on my trailer.



by:

Moved my axle below the leaf springs, works a lot better for my needs now. Paul helped me put an order together, got it shipped that day and delivered two days later. Quality parts and outstanding customer service.



by:

U bolt kit worked perfectly with the kit and spring seats I lifted my pop up camper moved springs from under to over the axle



by:

Your parts were quality and I’m very happy with them after using the trailer for a year! I will definitely buy from you guys again when I need something. Thanks Rick



by:

Springs & hardware, all good stuff. The hardware - U-bolts, plates, shackle straps should be zinc chromate plated, not bare steel! Gotta clean, scuff, & Rustoleum metal prime. Not a biggie.



by:

Looked under my trailer and the u bolts and plates wer rusted away, it's an old trailer so I had no details like make or model number. Called and talked to Kelly S. She was very knowledgeable and overly efficient! Got my parts super fast, the u bolts wrer very thick and the plates were even thicker. Quality parts at a good price. Would highly recommend and a big thanks to Kelly

Mike T.

2/29/2016

A year later still going strong



by:

I inherited an aluminum trailer that ended up needing a complete overhaul and etrailer was the best resource I could have found. After researching extensively to find out what I needed and watching their videos on how to do it I ended up ordering an EZ-lube axle, galvanized hubs, springs and a hanger kit (in other words everything from the frame down).
Everything shipped quickly and arrived in great shape. All the parts worked perfectly and I couldn't be happier!



by:

Had nuts only no washers or selflock nuts.had to buy washers & selflock nuts to make product safe so not lose up on axle when traveling on highway.

Etrailer Expert

Rebecca N.

7/13/2023

I completely understand that safety is a concern with replacing the u bolts. The hex nut washers that come with it are up the job and will stay in place.



by:

Works fine has held up well.



by:

Parts look like they will do the job, not yet installed

David

2/5/2024

No problems with this product.



by:

Installed on a homemade trailer. With slight modifications, it works great. Would by again from this vendor.



by:

First and foremost, working with etrailer was a pleasure. They were veery helpful in many ways. Secondly, Theproducts I purchased were exactly what I needed. I flipped the axle on my utility trailer in order to beef up the springs and use larger tires. The u-bolt kits were oerfect, and after having the spring seats welded onto the axle the rest of the job went smoothly. All in all 5 out of 5.



by:

Great service and excellent value



by:

I like that the arr pre-greased-it saves a-lot of time which means better shop production time. Shipping was on time as always.



by:

Old spring seats were rusted away, replaced the seats and u bolts, etrailer showing the measurements makes it easy to know you are getting the right parts



by:

Great product.



by:

Not much to say, they went in fine, and secure the axle to the spring seats...



by:

Had the specific leaf springs and u bolts I needed. Shipped quickly and arrived it good standing. Will be using again for trailer parts



by:

I purchased two of these axles to replace my old square ones. They appear to be good quality but they arrived damaged. The grease fittings on the ends were smashed because packaging wasn't adequate. I've emailed back and forth and was shipped the wrong parts for replacement. In the end I was told I'd have to cut the spindles off and replace them. All I need is new grease zerks that thread on the ends of the axles. Be prepared to purchase these on your own because customer service is subpar on a remedy and the way they package them for shipping does not prevent damage.



by:

Everything bolts right up, but it would be nice if the lock washers were included to make it a complete "kit".



by:

Delivered to my door...angle grinder to take the old axel off...socket wrench to put the new one on. Couldn't be easier.



by:

3 of the 4 Ubolts were course thread, 1 was fine threads. All nuts were fine thread. No big deal I had replacement nuts on hand. Could be a problem for some.

Etrailer Expert

Jenny N.

4/10/2023

I will definitely have our stock checked. All the nuts should match the u bolts.



by:

Good price, quality axle = satisfied cu stomer


25
470
Show More Reviews

See what our Experts say about this Dexter Trailer Suspension Parts

  • Correct Spring Seat and U-Bolt Kit for my 1-3/4" Round 2,000 lb. Axle
    The Spring Seat for Typical 2,000-lb, Round Trailer Axles with 1-3/4" Diameter part # TRSS175 are confirmed to work with the U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles part # APUBR-10. The U-bolts are always slightly wider at the mouth than at the bend and they all fit together really well.
    view full answer...
  • Best Parts to Upgrade a Harbor Freight Trailer
    I can confirm that the parts listed below are all compatible. I do recommend replacing your spring hangers since you are upgrading everything else on your suspension. The Single-Axle Trailer Hanger Kit for 2" Slipper Springs - 3-3/4" Tall Front item # APS6SE will work great with your springs. Dexter Idler Trailer Axle w/ Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,200 lbs item # 20545I-EZ-60-10 Kenda Loadstar 5.30-12 Bias Trailer Tire with 12" White Wheel - 5 on 4-1/2 - Load...
    view full answer...
  • Dimensions Of Slipper Spring Width Of Dexter Leaf Spring # DX93QR
    The Dexter Axle 4-Leaf Slipper Spring w/ Hook End for 2,500 pound Trailer Axles - 26-3/4 inch Long # DX93QR has a slipper width of 2 inches. The site has both 2 inches and 1 3/4 inches but 2 is the correct measurement. To mount the double eye spring over The U-Bolt Kit for Mounting 2,000-pound, Round Trailer Axles - 4-1/4 inch Long U-Bolts # APUBR-10 is needed, and finally The Spring Seat for Typical 2,000-pound, Round Trailer Axles with 1-3/4 inch Diameter - Qty 1 # TRSS175. I attached...
    view full answer...
  • Replacement Double-Eye Leaf Springs for 25-1/8 Eye Center Length
    All of our double eye leaf springs are 1-3/4" wide. If you have 1-3/4" wide springs we have the 3-Leaf Double-Eye Spring for 2,500-lb Trailer Axles # e66SR. This spring has a 25-1/8" eye center to eye center measurement and is rated for 1,250lbs per side. You will want to verify that this is the correct capacity for your trailer. I recommend using a U-Bolt Kit # APUBR-10 as often the U-bolts are damaged or severely corroded. If your springs are different from what I have recommend...
    view full answer...
  • U-Bolt Kit For a Coleman Destiny Royale Pop Up Camper with 2,200LB 1-3/4" Round Axle
    Depending on your year the Coleman Destiny Royale would have come with a 2,200lb 1-3/4" diameter axle. We have either the U-Bolt Kit # APUBR-10 with 4-1/4" long U-bolts or the CE Smith U-Bolt Kit # CE23000 with 4" long U-bolts.
    view full answer...
  • Recommended Axle Flip Kit for a 1-3/4 Inch Axle
    I have a solution for you but they don't make a specific kit for a 1-3/4" diameter axle like they do with the 2-3/8" item # K71-384-00. To make your own conversion kit for a 1-3/4" diameter axle all you will need is the U-bolt kit Item # APUBR-10 and two of the spring seats item # TRSS175 you were looking at.
    view full answer...
  • Can You Move the Spring Seats on the 2K 60" Dexter Trailer Axle with Idler Hubs
    Correct, you can move the spring seats on the Dexter Trailer Axle with Idler Hubs part # 20545I-ST-60-10 in or out to match your trailer. In order to do so, simply cut the tack welds to free the seat and then tack them back into place where you need them. Please note, you'll also need new u-bolts like the U-Bolt Kit for Mounting 2K Axles part # APUBR-10. If you damage the old spring seats cutting them off you can replace them with the Spring Seat part # TRSS175.
    view full answer...
  • Recommended Leaf Springs and Hangers for a Custom Trailer w/ a 2,000 lbs Axle
    Welcome back! The correct U-Bolt kit for mounting your 2,000 lbs trailer axle is item # APUBR-10. The right set of leaf springs for your trailer is typically determined by capacity and where your spring hangers are mounted. Since you are customizing your trailer you're not bound by this limitation. Since your trailer's axles going to max out at 2,000 lbs, I recommend the 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles item # SP-169275. These 3 leaf springs are 20-3/8" long. They will...
    view full answer...
  • Trailer Axle for a Home Made Tear Drop Trailer
    Modifying a trailer axle is not recommended because they are designed specifically to handle the weight the way that they are. By making the axle longer it can cause the axle to flex under the weight of the trailer and lead to all sorts of problems. The solution is to replace the axle. Straight axles are actually not all that expensive. But I would need to know the measurement of the existing axle from the spring seat center on one end to the spring seat center on the other end to select...
    view full answer...
    Image 1 for
  • Solution for Over-Under Conversion Kit on Lowes 4 x 6 Carry-On Trailer
    In order to determine the correct kit for your trailer I recommend measuring the diameter of your axle. The # K71-384-00 is for a 2-3/8" axle. More than likely you have a 2,000 lb axle with a 1-3/4" diameter. You will need to confirm this. Although there is no kit available for this axle diameter you can put one together. What you need is the U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts # APUBR-10 along with the Spring Seat for Typical 2,000-lb, Round Trailer...
    view full answer...
  • Replacement Trailer Axle That Measures 60 Inches Hub Face to Hub Face w/ 5-Lug Hubs
    We have an option for an axle that measures 60 inches from hub face to hub face and comes with hubs that have a 5 on 4-1/2" bolt pattern (5 lugs), though it is a round axle as opposed to a 2" x 2" tube. The axle has a 2,200 lb capacity and is the following part number: - Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,200 lbs # e22GR The # e22GR also has spring centers that are 48" apart on center, so you'd need to have new spring seats welded on, the Spring Seat...
    view full answer...
  • Replacement 2,000LB Trailer Leaf Springs For 1962 Aristocrat Single Axle Trailer
    I recommend the 4-Leaf Double-Eye Spring for 2,000-lb Trailer Axles # e77SR to replace the springs on your 1962 Aristocrat single axle trailer. These are the same 1-3/4" wide springs with a 26" measurement from bolt center to bolt center. As springs wear and sag it is normal for the measurements to appear longer than what they are when new so this will be the best one for your 2,000lb trailer. Be sure to replace both springs as a set. With the age of your trailer you should also get a...
    view full answer...
  • Can an Axle Over Under Kit be Made for 1-3/4 inch Trailer Axle
    If you are okay with removing the fenders or going to a larger one that would probably be your simplest route and the way I would go if I were you. We don't have an axle over under kit for your axle size, but we could piece together one if you like. All you would need for an over-under kit for a 1-3/4 inch round axle would be the U-bolt kit part # APUBR-10 and the spring seat part # TRSS175. You would need two of the spring seats. Then for a 14-inch wheel and tire we have the part # AM3S414...
    view full answer...
  • Availability of Over Under Kit for 2,200 lb Dexter Trailer Axle
    All you would need for an over-under kit for a 1-3/4 inch round 2,200 lb axle would be the U-bolt kit part # APUBR-10 and the spring seat part # TRSS175. You would need two of the spring seats.
    view full answer...
  • Does Over Under Kit for 1-3/4 inch Axle Require Welding
    All you would need for an over-under kit for a 1-3/4 inch round axle would be the U-bolt kit part # APUBR-10 and the spring seat part # TRSS175 that you referenced. You would need two of the spring seats. You will need to weld the spring seats into place.
    view full answer...
  • Recommended 26 Inch Leaf Springs for 1,500 or 2,000 Pound Trailer Axle
    When measuring your existing leaf springs, you will want to measure the length from the center of spring eye to the center of spring eye. If you measured a length of 26 inches, then the 4-Leaf Double-Eye Spring # e77SR should be a perfect replacement if you have a 2,000 pound axle. To confirm your axle rating, I recommend checking for a plate somewhere on the axle itself that lists its capacity. Even if you do find that your axle has a 1,500 pound capacity, this leaf spring set will still...
    view full answer...
  • What is the Difference Between Double Eye Leaf Springs and Slipper Leaf Springs
    The difference is found in the application. The Slipper Spring styles, like part # SP-179275, are intended for use with more heavy duty applications, while the Double Eye styles, like part # e77SR are used to provide a more comfortable ride. The part # e77SR that you referenced will be the correct fit if your current leaf springs are 26 inches long from the center of the attachments points (usually known as eye-center-to-eye-center). You might also still be needing a U-Bolt mounting...
    view full answer...
  • Recommend U-Bolts For A 72 Inch Long 2,000 Pound Axle
    When it comes to The Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 72 inch Long - 2,000 pounds # e37YR the U-bolt kit does not come with it. The U-Bolt Kit for Mounting 2,000-pound, Round Trailer Axles - 4-1/4 inch Long U-Bolts # APUBR-10 is the kit you would need to work with the # e37YR. I will attach a review video link below.
    view full answer...
  • Replacement Axle With 72 Inch Hub Face to Hub Face Measurement
    We do have a 72 inch hub face to hub face axle, but not one with a 69 inch spring seat to spring seat measurement. That said, what you can do is use the 72 inch axle and have new spring seats welded on where needed. There are two axles with a 72 inch hub face to hub face measurement, one with a 2,000 lb capacity and the other with a 2,200 lb capacity so be sure to get the one with the capacity you need: - 2,000 lbs: Trailer Idler Axle Beam with Easy Grease Spindles # e78GR - 2,200 lbs:...
    view full answer...
  • Is There Trailer Over Under Kit that Fits 2,000 lb Rated Trailer Axles
    Measure the diameter of your axle for me if you can. Your axle being 2k means it SHOULD have a diameter of 1-3/4 inches which means that to make an over under kit you'd only need the spring seats # TRSS175 and the U-bolt kit part # APUBR-10. But if you have a different diameter let me know and I'll see what your best option is.
    view full answer...
  • Availability of 3/8-Inch Diameter U-Bolts that Measure 4-inches x 3-1/2-inches
    We do offer several different u-bolts and axle kits with 3/8-inch diameter and all of these can be seen on the link at right. One such example is part # APUBR-10 which is a kit with 4 u-bolts, plates and nuts. None of these has the exact dimensions you quoted, please note. A second link will let you see all u-bolts we offer and the filters in the left-hand margin will let you sort the results based on length.
    view full answer...
  • Determining U-Bolt Length Needed For 1-3/4" Round Axle When Changing Leaf Springs
    You can determine the correct length U-bolts by adding the dimensions of your axle and components. Knowing that the axle is 1-3/4" round you can add that to the height of the Spring Seat # TRSS175 (9/16"). Then you will need to also add the height of the U-Bolt Plate # 012-040-00 (3/16"), washer and nut (1/2") and your leaf spring (?). Without the leaf spring you are looking at 3". We have the U-Bolt Kit # APUBR-10 that uses 4-1/4" U-bolts that will allow you a leaf spring that is up...
    view full answer...
  • U-Bolt Mounting Kit for Dexter 2,000 Pound EZ Lube Axle and 1020 Leaf Springs
    The u-bolt kit associated with axle # 20440I-EZ-60 and the 1020 springs is # APUBR-10. The kit includes four 4-1/4 inch long u-bolts, two u-bolt plates, and eight 3/8"-24 hex nuts. I have linked a video showing installation for you. Current pricing is available on the product pages.
    view full answer...
  • Replacement 2000lb Trailer Axle for 2000 Trailstar Tracker
    The Dexter Trailer Axle # 20545I-EZ-72-15 does appear to be the closest to your measurements on your 2000 Trailstar Tracker. It has a hub face to hub face of 72" which would be near the same as your 75" tip to tip length that you measured. The axle has a Spring center of 58" which compared to your 58.5" measurement may just be a difference how the U-bolts were tightened. Axle manufactures tend to use the hub face to hub face measurements as this will give a more accurate representation...
    view full answer...


< Previous
123. . .5



Do you have a question about this Trailer Suspension Part?


Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Kathleen M
Video Edited:
Kathleen M
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Shane T
Installed by:
Shane T
Employee Randy B
Installed by:
Randy B
Employee Andy C
Installed by:
Andy C
Employee Chris R
Video by:
Chris R
Employee Zach D
Video by:
Zach D
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


Product Experts Available Now!
Call 1-800-940-8924