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CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc
CE Smith

CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc

Part Number: CE23103
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$40.25
Trailer Suspension Parts
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Mount your square, 2" wide axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates, nuts, and washers included. Zinc plating resists rust and corrosion - great for boat trailers. Great Prices for the best trailer suspension parts from CE Smith. CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc part number CE23103 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (496)
  • Q & A (0)
  • Videos (1)
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CE Smith Trailer Suspension Parts - CE23103

  • U-Bolt Kits
  • Boat Trailer
  • Snowmobile Trailer
  • Square Axle - 2 Inch
  • 4-1/2 Inch Long
  • 3500 lbs
  • 1/2 Inch Diameter
  • CE Smith

Mount your square, 2" wide axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates, nuts, and washers included. Zinc plating resists rust and corrosion - great for boat trailers.


Features:

  • Mounting kit attaches trailer axle to leaf springs
  • Galvanized plates and zinc-plated hardware resists rust and corrosion
  • Includes:
    • 4 U-bolts
    • 2 U-bolt plates for 1-3/4" springs
    • (8) 1/2" Hex nuts and washers
  • Made in the USA


Specs:

  • Application: 2" wide, square axle
  • U-bolt dimensions
    • Inner width: 2-1/8"
    • Length: 4-1/2"
    • Diameter: 1/2"


23103 CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc




California residents: click here


Video of CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc

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




Video Transcript for Comprehensive Review: CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles

Today we're going to be taking a look at the CE Smith u-bolt kit for mounting 2" square trailer axles. The mounting kit is going to attach a trailer axle to the leaf spring. The plates are going to be galvanized steel, then the hardware is going to be steel construction but that's going to have a zinc plated finish on it, so overall the unit is going to do a great job at resisting rust and corrosion. This kit is going to include 4 u-bolts, 2 u-bolt plates, and then it's going to come with the appropriate hardware, so you're going to get 8 hex nuts and 8 washers, and those are going to be lock washers. We can tell that this is designed for 1 3/4" springs simply by taking a measurement between this hole and this hole, and we can see that- that measurement is right at 1 3/4". Now the plates themselves going this direction we're looking at 3 3/4", and then going this direction it's going to have a measurement of 4". It does have the center hole for punch out on the spring.

Then right here for the u-bolts, a couple measurements I want to go over with these, these are going to give us an inner width, measuring inside edge to inside edge, of just over 2" so that's how we know that there are designed for a 2" wide square axle. Center on center those posts are going to be separated by 2 5/8". The length, measuring from the bottom of this area here to the end of the stud, that's going to give a measurement of right at 4 1/2". Then the diameter of the u-bolts, so the thickness right here outside edge to outside edge, there are going to be a 1/2" diameter. That's going to do it for today's look at the CE Smith u-bolt kit for mounting 2" square trailer axles.

Customer Satisfaction Score:


Customer Reviews

CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc - CE23103

Average Customer Rating:  4.8 out of 5 stars   (496 Customer Reviews)

Mount your square, 2" wide axle to your trailer's leaf springs with this U-bolt kit. U-bolts, plates, nuts, and washers included. Zinc plating resists rust and corrosion - great for boat trailers.

by:

Arrived well packed and as advertised.
I'm
going to pull the azle out of the boat trailer
and wanted to have this 'on hand' should I break
some of my U bolts. I've bought from you before -
always been happy, thanks

Gary

7/23/2024

I wanted this product On Hand should some of the original parts fail during my Re Work. Turns out I didnt need them - they are standing by when I do



by:

Bought these in conjunction with new springs and 48" axle for an old galvanized boat trailer (for a Hobie cat). Axle, springs and U-bolts all bolted together perfectly. Trailer is like new!



by:

Good quality product. Small problem with order. etrailer took care of it fast.

Thanks guys!



by:

Fit just like the ones I took off and working fine.

John

9/26/2024

Great, working as it should on my small boat trailer.



by:

Stainless steel would be excellent



by:

Service was outstanding! Cannot rate products until they get some use. Curious to see how they stand up to the salt water here on the coast.



by:

Customer service was great
The springs
fit perfectly



by:

Complete waste of time and money. I bought both springs, and this set of u-bolts plates from etrailer for a new 2" square axle. The u-bolts are too short. I'd suggest someone buy a new tape measure.
I also had to grind down the spring center bolt as it stuck out of the small adapter plate and kept the spring from seating correctly (used the adapter palte which came with the springs instead of drilling a big hole in my brand new axle.)

It is getting harder and harder to get the parts I need from these folks.

Now waiting for parts to come from another vendor.



by:

Would have gotten 5 stars if delivered within 3 days. Otherwise product fit. Thanks

Jon

5/24/2024

Perfect fit. No issues



by:

I used this kit to replace the rusted ones on my flatbed trailer. I also flipped it so the axle is on top of the springs to lower it for loading my lawn tractor. See before and after pics.



by:

Received the order in a timely manner. Super friendly customer service. I would buy from them again.



by:

Worked perfect for mounting a storage box to my boat trailer.



by:

WOW sums up my recent trailer part purchases. The u-bolts fit perfectly and are well made...see attached photo and of my trailer with new parts installed. Outstanding quality, price, lightning fast delivery, and exceptional customer service from order to drop off at my doorstep. Will recommend and order again. Well done, e-trailer, and Thanks.



by:

Everything fit perfect. I had to replace the leaf springs on my boat trailer. I have a 24' fiberglass boat that is launched and retrieved in the salt water the original springs only lasted 7 years. The new springs are heavier duty and painted or coated with a better material. Over al very very pleased.

David

5/6/2023

After 1 year everything is still workong great.



by:

Awesome service and it fit perfect



by:

Very strong Holds new leafs.



by:

The 26” on center leaf springs that I just purchased were delivered quickly and worked perfectly on my trailer. The only issue was that I ordered 3” shackle bolts (my fault) but really needed 3 1/2” so I returned them to etrailer. The return process was very easy, they sent me a RMA # and the shipping label my email, and I just dropped it off at the UPS store. Great doing business with etrailer!!!!!



by:

Exactly as advertised torment was spot on.



by:

Good product, fit as expected. One year in and ubolts are holding up great.



by:

Out standing as all was. shipping is out standing order them on Friday after hours they where at my door Tuesday the next week out standing shipping. I did the same thing with brake plates all ready to put in ordered Friday I was in Oregon at the time they was at my house the next Tuesday or Wednesday standard shipping is out standing a long with everything I got here.



by:

Just want I ordered, timely and very he lpful!



by:

Great item



by:

Very fast deliver and was shipped on ti me!



by:

Exactly what I needed



by:

Priced fairly and shipped quickly.


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496
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See what our Experts say about this CE Smith Trailer Suspension Parts

  • Do You Have The Replacement Open Eye Leaf Springs and Hardware For a 2001 Load Rite Boat Trailer
    The only open eye 1-3/4" wide leaf springs we currently carry is the etrailer # e24SR & # e33SR. I have no way to verify the weight capacity for your current springs but as it is only a 2" square axle this spring is likely much heavier than you will need. We do have the U-Bolt Kit # CE23103 for your axle which includes 4 u-bolts, 2 plates and 8 washers and nuts. Then you will need 2 of the Hanger Bolts # TRFA73Z916DLNZ for the leaf springs.
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  • Needing U-Bolts to Fit Around 2x3 Trailer Frame Member
    Given the dimensions you provided, I believe that a u-bolt kit such as # CE23103 that's typically used to mount a 2 inch square trailer axle to the leaf spring pack would be your best bet. The kit includes two assemblies, each of which includes two 4-1/2 inch long 1/2 inch U-bolts with a 2-1/8 inch inside span, two bolt plates and the necessary nuts and lock washers. I've linked to a product description video for the U-bolt kit I recommended.
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  • Replacement Leaf Springs for Wesco Boat Trailer
    For a 3,500 lb trailer axle leaf spring I would recommend the galvanized part # e68SR which is 25-1/8 inches long. Galvanized steel holds up a lot better to rust than standard steel and while this is a little shorter than what you have now worn out springs tend to flatten out and get longer over time. For a 2 inch square u-bolt kit then you'd want the part # CE23103 and you'd be set. To pick out an axle you would need to know the hub face to hub face dimension as well as the spring seat...
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  • U-Bolt Kits Available For Different Size Axles When Adding New Hangers
    Our U-Bolt kits are available separately due to axles having different sized and most hanger kits can be used with several different size axles. Here is a list of different size kits depending on your axle size. 1-3/4" Round Axle # CE23000 2-3/8" Round Axle # CE23002 3" Round Axle # CE23003 1-1/2" Square # CE23102 2" Square # CE23103
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  • Replacement Leaf Springs and Hardware for 2008 Venture Boat Trailer
    To find replacement leaf springs you will need to know your axle capacity along with the length of your current leaf springs. If you don't already know the axle capacity I would try checking the axle tag to see if it is listed. If not, you can call Venture with the VIN and they should be able to tell you. Once you have the capacity go ahead and measure the length of your leaf springs. This is the spring eye to spring eye measurement. I have attached an article below which has a video...
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  • Replacement Leaf Spring Recommendation for 2009 Venture VAB-3025 Boat Trailer
    According to my research you should need 25-1/8" long springs rated for a 3,500 lb axle which means you'll need the following parts: - 3.5K Leaf Spring # e54SR OR Upgrade to part # e68SR - U-Bolt Kit # CE23002 for Round Axle OR # CE23103 for Square Axle - Heavy Duty Suspension Kit # K71-403-00 You'll want to verify the length of your current leaf springs by lifting your axle off the ground by the frame and measuring from center eye to center eye. If you measure something different...
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  • Replacement Leaf Springs and U-Bolt Kit for a 2005 Fabrique Dual Axle Boat Trailer
    It sounds like you're needing the 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles # e48SR along with the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles # CE23103. The leaf spring measures 26" long center eye to center eye and has a Dacromet finish which is more resistant to corrosion than the classic black powder coat finish, especially when it comes to water. Just be sure that your axles aren't rated for higher than 4,000 lbs and that your axle isn't more than 2" square...
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  • Recommended 30 Inch Slipper Springs and 2 Inch Square Axle Mounting Kit
    For your 2,000 lb square axle, I recommend the 3-Leaf Slipper Spring w/ Flat End for 2,900-lb Trailer Axles - 30" Long # SP-039275 which is a little stronger than your axle but won't increase your capacity of 2,000 lbs. This is a 30 inch long slipper spring with a 1.75 inch width as you stated. I recommend using the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079 with each spring. For your square axle mounting, I recommend the CE Smith U-Bolt Kit for Mounting...
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  • Hanger Kit With Leaf Springs For Mounting Tandem Axle Trailer Suspension for 2" Square 3500LB Axles
    On our page for the Tandem-Axle Trailer Hanger Kit # AP233-H248 we will have a diagram for the hanger measurements when using four of the Springs # e54SR. You will need the CE Smith U-Bolt Kit # CE23103 to attach your 2" square axles.
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  • Replacement U-Bolt Kit, Leaf Springs, Bolts and Shackles for 68 Aristocrat Lo Liner Trailer
    Installing the U-bolts and plate like that would be fine, but I would recommend putting the plate on the leaf springs and running the U-bolts around the axle instead. The good news is you're replacing them so you can make that change when you install them. Once you have your axle measurements we do have some kits you could use. If it is a 2" square axle the # CE23103 or for a 1-1/2" square axle the # CE23102. If it is 1-3/4" you will need the # 175130 along with the # 116308. Since you...
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    Image 1 for
  • Does 3,500 lb Leaf Spring Need to Have Same Number of Leaves as Original
    Yes, you can replace your 3,500 lb 7-leaf springs with leaf springs that have 3 or 4 leaves because the weight rating is the same. The number of leaves isn't a determining factor; for example, there are 4-leaf springs for both 2k and 6k axles. So you simply need springs with the correct rating for your axle, as well as the right length. For that, you'll want to measure the length from center-to-center of the spring eyes, taking into account you current leaf springs will have elongated...
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  • Availability of 7/16 Nuts to Fit Redline Replacment U-Bolt UBZC716X212X400
    The reason why you couldn't find the matching 7/16"-14 nuts to go with the Replacement U-Bolt for 2" Wide, Square Axles - 7/16" Diameter # UBZC716X212X400 is because we do not carry them. We carry U-Bolt kits that include the matching nuts and washers, like part # CE15251A, which are the same grade (GR 5) and share the same dimensions (4" long x 2-1/8" wide x 7/16" diameter). Or, part # CE23103, which includes the more common 4-1/2" long x 1/2" diameter U-bolts for 2" square axles, hardware...
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  • Recommended Axle Mounting Hardware for Square Axle
    It sounds like the axles were attached with 2 inch U-bolts that are 1/2 inch diameter which are a standard size so it sounds like the axles are compatible with a standard U-bolt kit like the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc # CE23103. If this is the case, that is my recommendation. This will work well with 1-3/4 inch wide leaf springs. If I misunderstood and the 2 inch U-bolts were bent out to fit a 2-1/2 inch wide square axle, then...
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    Image 1 for Image 2 for
  • Need for Additional U-Bolts to Install CE Smith Roller-Style Guide-Ons CE27610
    The CE Smith Roller-Style Guide-Ons # CE27610 will fit your 2 x 2-inch trailer frame. The standard included brackets work with frame members up to 3-inches wide and 4-1/4-inches tall. It is a good idea to add another u-bolt to each guide-on in your application. I linked our main page for trailer u-bolts where you can see items like CE Smith U-Bolt Kit # CE23103 and # UBZC12X212X525.
    view full answer...
  • Hanger Kit Recommendation for Slipper Leaf Spring # e33SR
    Sounds like what you are in need of is a single axle hanger kit for the leaf spring part # e33SR that you mentioned. For that you'd only need the # APS3SE and you'd be set. This gives you the hangers for the front and rear for the spring as well as the correct nut and bolt to hold it all. For a u-bolt kit you'd then want the part # CE23103 for the axles.
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  • Determining The Correct Replacement Leaf Springs For Tandem Axle Trailer W/ Square Axles
    I would be happy to help you find the correct replacement suspension components for your trailer, but you will need to take a few measurements first. Starting with the leaf springs, you will need to make sure that the tires on the side of the trailer you are working on is off the ground with the trailer supported by the frame as the leaf springs will stretch when the tires are on the ground and weight is applied. If your 26-1/2" measurement was with the tires off the ground the closest...
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  • 2 inch Square Axle U-Bolt Kit Recommendation for a Boat Trailer
    The CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles # CE23103 that you referenced would work well for you as they are designed specifically for 2 inch square trailer axles like what you have. The weight of your trailer and boat would not be an issue at all.
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    Image 1 for
  • Recommended Bolt-On Tie Down Bracket for a Pontoon Boat Trailer
    Yes we do, Johnny. Check out the CE Smith Tie-Down Bracket for Boat Trailers # CE26214G. This is a bolt-on bracket that will create a fixed-position tie-down on your trailer, is made of galvanized steel, and is 4" long x 1 15/16" wide.
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  • Can Axle Over Under Kit be Installed on Trailer with 2 inch Square Axles
    Axle flip kits are great options for raising the suspension of a trailer. Trucks weren't as tall back then as they are now so I'm not totally surprised your trailer is sitting so nose high. We have 2 inch square U-bolt kits like part # CE23103 which you could use, but we don't have spring seats for this axle size. So you would have to remove the spring seats on your axle and weld them on the other side.
    view full answer...
  • What Is The Thread Length On The CE Smith U-Bolt Kit CE23103?
    I had our warehouse measure the CE Smith U-Bolt Kit for Mounting 2" Square Trailer Axles - 4-1/2" Long U-Bolts - Zinc # CE23103 you were looking at and the thread length is right at 2" with a diameter of 1/2" and an overall length of 4-1/2". These U-bolts are going to have the longest thread length of any of our 2-1/8" wide U-bolts. I included a video of the # CE23103 for you to take a look at.
    view full answer...
  • Determining Need to Replace Trailer Suspension Components
    If your shackle links, shackle bolts and hangers are all in good condition - meaning no obvious deterioration, damage or evidence of holes having become egg-shaped from wear - you could re-use them. But in the scheme of things these parts' costs are fairly low so if you're going to the effort of upgrading your camper's suspension I suggest you eliminate any potential doubt/concern by replacing these items if you have any reason to think they're past their working lifespan. If you are...
    view full answer...
  • Replacing Old Slipper Springs and U-Bolts
    Though the leaf springs are rusty, they do not seem to look pitted, so they should still be fine. It wouldn't hurt to clean them off with WD-40 or a rust remover to make sure they don't get worse. If you did want to replace them though, you could go with something like the Universal Group # SP-040275. As I couldn't tell 100% how wide the leaf spring is, this is a 1 3/4 wide one. It is also much longer with the overall length of 30 inches, so the rear hanger would most likely need to be...
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for Image 5 for
  • Are Trailer Spring Seats Needed for Square Axles with Leaf Springs?
    Square axles normally don't have spring seats like a round axle but do have a hole for the leaf spring bolt to fit into. Take a look at the CE SMITH # CE33201GA-HUB for a visual. The U-bolt mounting kits will have a hole in the center for the other side of that leaf spring bolt to keep everything in line. If you have a 1-1/2 inch square axle use # CE23102. If you have a 2 inch axle use # CE23103.
    view full answer...
    Image 1 for
  • Can Nylon Lock Nuts Be Used On CE Smith U-Bolt Kit CE23103?
    While you could physically replace the lock washer and nut included with the CE Smith U-Bolt Kit # CE23103 with nylon lock nuts, I do not recommend doing so. Nylon nuts deteriorate overtime and can back off where the lock washer and nut included will stay tight, and are also what these U-bolts were tested and designed for. I included a video of the # CE23103 for you to take a look at.
    view full answer...


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Info for this part was:

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Edited by:
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Expert Research:
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Expert Research:
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