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: $35.11
You Save: 33%
Trailer Suspension Parts
Add to cart
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 (474)
  • 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   (474 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:

This component was a perfect match for the axle and springs that I ordered. 2000# rated



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:

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:

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:

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:

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:

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:

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:

Great product.



by:

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



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:

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:

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:

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


25
474
Show More Reviews

See what our Experts say about this Dexter Trailer Suspension Parts

  • Parts Needed to Do an Over-Under Kit on a 1-3/4 inch Trailer Axle
    When you use an over under kit like the part # K71-385-00 you end up gaining a lift that measures the diameter of your axle, plus the spring seat, and the thickness of your leaf springs. You will need to measure those items on your trailer to determine the amount of lift you would need. Since we don't have a kit designed to fit a 1-3/4 inch diameter axle, and since you aren't completely sure that is the diameter of your axle you will need to verify this before I can piece you together...
    view full answer...
  • Parts Needed to Rebuild Suspension of 4 x 9-Foot Utility Trailer
    The 2200-lb-rated axle/hub kit # 20440I-EZ-60 should be fine for a 4 x 9 utility trailer. This kit includes 4-on-4 hubs that work with trailer wheels from 8- to 12-inches diameter, like # AM30040, but note these wheels/tires are rated for 745-lbs each so two of them can handle 1490-lbs, not 2200-lbs as the axle can. Keep this in mind as you load the trailer up; the weakest link determines overall capacity. Your trailer frame may be rated for more or less weight than these other parts. The...
    view full answer...
  • Recommended Springs and Ubolt Kit for 1993 Tacker Trailstar Boat Trailer
    Sounds like the 3-Leaf Double-Eye Springs # e66SR are what you are looking for. They have an eye to eye distance of 25-1/4 inches, a width of 1-3/4 inches and are rated for 2,500lb trailer axles. The ubolt kit # APUBR-10 should provide you with enough clearance. This ubolt kit is designed for 1-3/4 inch round axles and are 4-1/4 inches long and the ubolt post has a diameter of 3/8 of an inch. See the picture I've attached. I have linked both items to this page for your convenience....
    view full answer...
    Image 1 for
  • Parts to Flip 2,000 lb Dexter Trailer Axle With Idler Hubs
    There is a way for you to flip the axles of the Dexter Trailer Axle with Idler Hubs # 20545I-EZ-72-15 you asked about, though the over/under kit you mentioned won't work because this axle is too small in diameter. So while there isn't a similar kit for the 1-3/4" axle tube of the Dexter axle, you can put together the pieces needed, which are the following: - U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles # APUBR-10 - Spring Seat for Typical 2,000-lb, Round Trailer Axles with 1-3/4"...
    view full answer...
  • Parts Needed to Replace 2000 lb Axle and Suspension
    You're certainly on the right track, with the exception of the leaf spring U-bolt kit. The # K71-385-00 is meant for a 3500 lb axle, and wouldn't fit your 2000 lb axle correctly. The U-bolts would be too large. If you want to keep the axle mounted under the leaf springs, you'll just need the # APUBR-10 U-bolt kit. If you were wanting to mount the axle beam above the springs which would lower the trailer's ride height by roughly 2 inches, you'd use the same # APUBR-10 bolt kit as well...
    view full answer...
  • Recommended Slipper Spring for Custom Kayak Trailer
    Thanks for the photos with measurements. The 2-Leaf Slipper Spring w/ Radius End for 1,000-lb Trailer Axles - 24-5/8" Long # SP-177275 are rated for 500lbs each for use with a 1000K axle. This will work with the inside to inside measurement you are seeking. You will simply need the 9/16 inch bolt # 166079. If there is any extra space in the hanger it won't be an issue with the bolt and bushing.
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • U-Bolt Kit for 1-3/4" Round Axle
    There is a kit for 1-3/4 inch round axles, the U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts # APUBR-10. That said, these are for 2,000 lb axles that are found on RVs instead of a mobile home axle. The reason for that is mobile home axles are designed for a one-time use so people don't change the suspension. I have added a link to a video review of this kit for you to check out as well.
    view full answer...
  • Availability Of Over-Under Kit For 1-3/4" Diameter Axle
    I would be happy to help! There is not an over-under kit for a 1-3/4" diameter axle, but I would be happy to piece one together for you. You will need to following components: Spring Seat # TRSS175, and U-Bolt Kit # APUBR-10. The spring seat will need to be welded to the top of your axle by a qualified welder. I included videos of the products mentioned for you to take a look at.
    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...
  • 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...
  • What Parts Are Needed To Upgrade My Single 3,500 Pound Axle To Two 2,000 Pound Axles
    When it comes to taking off your single 3,500 pound axle and putting on two 2,000 pound axles you would first need The Dexter Trailer Axle Beam with Standard Spindles - 72 inch Long - 2,000 pounds # T20BTR-7258.This axle's hub face to hub face is 72 inches, and its spring center to spring center is 58 inches. When mounting the axles you will need The U-Bolt Kit for Mounting 2,000-pounds, Round Trailer Axles - 4-1/4 inch Long U-Bolts # APUBR-10. When it comes to the electric brakes The...
    view full answer...
  • Slipper Springs Close to 24 Inches for Trailer Axle
    The closest we have to that is the 3-Leaf Slipper Spring # SP-178275 which measures a total of 24-5/8" long and is rated for 1,500 lb trailer axles; but the smallest mounting hardware we offer for these is for 1-3/4" round axles, the U-Bolt Kit # APUBR-10. As for hubs, in order to find the correct replacement hubs for your trailer you need to know the weight rating of your axle, and also what bearings your current hub has. You will need to take apart your current hub assembly and look...
    view full answer...
  • Parts Needed for Over Under Axle Kit on 1-3/4 inch Diameter Axle
    I can help you piece together an over under kit that will fit a 1-3/4 inch axle, but the part # K71-384-00 is not a fit for you as it is designed for thicker axles. You would instead want the spring seat part # TRSS175 and then the U-bolt kit part # APUBR-10 and you would have everything you would need.
    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...
  • 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 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...
  • Recommended 2000lb Replacement Axle With 72" Hub Face Measurement For 5' x 8' Trailer
    I recommend the Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15 which has the 2000lb axle rating, 72" hub face to hub face measurement, and 5 on 4-1/2" bolt pattern hubs you mentioned, but has a spring center to spring center measurement of 58" instead of 58-1/2" that you mentioned. With how close the spring center measurement is it may work still, if not you will need to remove the current spring seats and replace them with...
    view full answer...
  • Replacement Parts for Long Chih Industrial LCI-850T Folding Utility Trailer
    The website for Taiwanese trailer maker Long Chih Industrial does not provide any specs or construction details for their LCI-850T folding utility trailer so I cannot tell you which parts you will need to complete assembly. However, we do offer all sorts of trailer hardware like u-bolt kit # APUBR-10 as well as other individual parts you can see on the linked page.
    view full answer...
  • Are New Leaf Springs Required When Installing Dexter 2K Axle
    If the spring center and hub face measurements are the same between two axles then they will be cross-compatible assuming they are the same type. The Dexter Trailer Axle w/ Idler Hubs part # 20545I-EZ-72-15 measures 58" at the spring center and 72" at the hub face. The leaf spring will not need to be replaced unless they are worn, you will however need new u-bolts for the axle. The U-Bolt Kit for Mounting 2,000-lb Axles part # APUBR-10 is correct.
    view full answer...
  • Recommended Trailer Axle for 6 Foot Wide Trailer
    For a 6 foot wide trailer I recommend the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs # A20RS545. This system will allow you to simply attach the assembly to the frame and then use a 2 inch square bar between the assemblies in the integrated holes. If you have a cross brace at the axle location, this bar (not included) is not needed. This will give you the perfect fit on your frame and will extend the wheels to the outside of the frame....
    view full answer...
    Image 1 for
  • 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...
  • U-Bolt Suspension Kit for 1-3/4 Inch Diameter Round Trailer Axle
    U-bolt kit # APUBR-10 is the only one we carry that fits a 1-3/4 inch diameter trailer axle. You would have to change the springs to 1-3/4 inch wide springs to use this kit. A larger u-bolt kit would not work because it can cause damage. To determine if we have springs that will work for your trailer I will need to know the type of springs you have, double-eye or slipper springs, and the measurements. A 1-3/4 inch diameter axle likely has a 2,000 pound capacity so we would be looking at...
    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 Trailer Axle Recommendation for a 4 by 8 Utility Trailer
    With an unkown axle it is hard to know what it's capacity would be. Plus a trailer's capacity is more than just the axles it uses. You have to consider the suspension, the frame, coupler, brakes etc. The part # 20440I-EZ-60 that you referenced would bolt right up to your trailer and would give you 2,000 lbs of axle capacity. But for the overall capacity of the trailer you need to go with the lowest rated component as the overall capacity. You would also want the # APUBR-10 for new U-bolts...
    view full answer...
    Image 1 for


< 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.