1. Trailer Leaf Spring Suspension
  2. CE Smith
  3. U-Bolt Kits
  4. Axle Mounting Hardware
  5. Round Axle - 1-3/4 Inch
  6. 4 Inch Long
CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc

CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc

Item # CE23000
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Trailer Leaf Spring Suspension
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Shipping Weight: 3 lbs
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CE Smith 3/8 Inch Diameter Trailer Leaf Spring Suspension - CE23000
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Mount your round, 1-3/4" diameter 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. Lowest Prices for the best trailer leaf spring suspension from CE Smith. CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc part number CE23000 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (34)
  • Q & A (7)
  • Videos (2)
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CE Smith Trailer Leaf Spring Suspension - CE23000

  • U-Bolt Kits
  • Axle Mounting Hardware
  • Round Axle - 1-3/4 Inch
  • 4 Inch Long
  • 2000 lbs
  • 3/8 Inch Diameter
  • CE Smith

Mount your round, 1-3/4" diameter 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.


  • 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) 3/8" Hex nuts and washers
  • Spring seats (sold separately) required for mounting axle to leaf spring
  • Made in the USA


  • Application: 1-3/4" diameter axle
    • Typical 2,000-lb axle
  • U-bolt dimensions
    • Inner width: 1-7/8"
    • Length: 4"
    • Diameter: 3/8"

23000 CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc

Video of CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc

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

Video Transcript for CE Smith U-Bolt Kit for Round Trailer Axles Review

Speaker 1: Today, we'll be having a look at the CE Smith line of U-bolt mounting kits for mounting round trailer axles. Here's what our kit comes with. It's everything you need for replacing the U-bolts on a single axle on your trailer. We have 4 new U-bolts, you'll have 2 per side; 2 new plates, 1 per side; 8 new lock washers, you'll be using 4 for each side of the trailer; and 8 new nuts, again 4 for each side of the trailer.You can see how well our U-bolts grip around the contours of our axle. This'll keep the axle firmly attached to our leaf springs, so we don't have to worry about it slipping and sliding.Now because we have the zinc and the galvanized finish on our plate and our hardware, this will better protect them from corrosion from the elements, especially salt spray. It's not an issue if you decide to use them on a boat trailer such as this one.Now many of our customers have had to make a second phone call or send an email to us after they bought a new axle for their trailer because they found, once they tried to remove the old one or put the new one on, that they couldn't get their factory U-bolts off.

They had to cut them off, and now they're searching for a replacement. This kit will be a perfect solution for this problem here.Now many of our customers compared these to the Redline line of U-bolt kits. Now the main difference you're going to see between this one and those is that those do not have the galvanized or the zinc finish on the plates or the hardware, which will cause them to rust out faster.As you can see, we already have our new axle sitting on top of our leaf springs. Now this kit could work for an axle that sits on top or below your leaf springs. It works for both applications.

You don't need to worry if yours resides below, you can still use this kit for that.We'll start by taking our new U-bolts and dropping them over our axle on either side of our leaf spring. Now we'll take our new plate. We want to make sure that this flange right here faces down, this hole here in the center lines up with the alignment pin on our leaf spring, and we'll insert our U-bolts through the holes. Place on our lock washers, and we'll put that on our nuts.Now we can start to tighten our hardware, making sure we tighten them evenly as possible. Now we'll torque our hardware again, making sure we alternate to ensure that we're doing it as evenly as possible.And that completes our look at the CE Smith line of U-bolt kits for mounting round trailer axles..

Customer Reviews

CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc - CE23000

Average Customer Rating:  4.8 out of 5 stars   (34 Customer Reviews)

Mount your round, 1-3/4" diameter 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.

- CE23000

U bolt kit and leaf spring kit fit great on the old 1979 snow mobile trailer 489886

Dale B - 03/31/2019


- CE23000

shackle sets worked great-exactly as ad vertised 817085

- CE23000

the u bolts for my leaf springs worked great. 807705

- CE23000

work awesome , 799840

- CE23000

Awesome parts fit perfectly and good quality as well. Fast and easy shipping came on time at noon and got it all back together. Thank you very much will be ordering from you folks from now on. 785477

- CE23000

Rock solid parts. Easy to all needed components with the online ordering. 785761

- CE23000

Great service! 776898

- CE23000

I have purchased from etrailer several times and as always never disappointed! Great selection, price, and shipping. Made my purchase during the virus pandemic and order was received within without a problem as if nothing was going on! 776561

- CE23000

U-Bolts were perfect. The springs don't seem to be as heavy as my originals. I bought my tilt trailer from a private owner who made it. The original springs leaves are slightly thicker than the new ones. I am not sure what weight this trailer is rated for. The new springs seem to be perfect in size so I will keep them as spare parts 763089

- CE23000

no frills, no problems, nice and solid. It even survived a broken OEM spring incident on the road. I used it as part of a spring-over-axle conversion on my Aliner. 762483

- CE23000

great product all the parts necessary to install new springs on my older trailer 725396

- CE23000

The springs and accessories that I bought are performing great. I'm very happy with the products and services. 674409

- CE23000

Pieces of junk. I broke two of these while tightening with a wrench by hand. 621712

Redline offers a mounting kit thats more substantial, part # APUBR-10
U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts
-- Mike L - 04/12/2019


- CE23000

I recieved all the correct items recommended by Carol, all of it shipped in good condition. I assembled all parts with no issues. Thank you for the help. 609047

- CE23000

Replaced broken springs on a utility trailer and these ubolts were perfect. 583206

- CE23000

Quality replacement thanks etrailer 574239

- CE23000

Had a hard time finding leaf spring mounting plate kit that had a 1 7/8" gap in the u-bolts. Ordered these and they fit perfectly and arrived in a timely manner. Shipping was as much as the item, but that is out of etrailer's hands of course. Quite happy with the product. 566292

- CE23000

Perfect fit for my Express boat axle, replaced Springs and axle kit, look forward to many years of service. 506021

- CE23000

many sets were purchased. They were owned for less than 30 days. The trailers that came in for service work or trade ins had the u bolts and plates very faded with no rust. 474626

- CE23000

Was really cool to have my shipment changed so that it arrived earlier. Really appreciate it. 472302

- CE23000

I just wanted to take the time to say thank you . Your Product is outstanding . I am a GM technician for 33 years , my daughter and I , she is 12 years old , Add a project on Old trailer so she could put quad sport to go ridding. Again thank you so much!! 464146

- CE23000

Product works just as intended and the service was VERY prompt! 457471

- CE23000

Haven't installed the parts yet. However, everything came packed perfectly and professionally. Parts look to be of great quality and shipping was WAY faster than estimated! Will definitely continue to keep buying trailer parts from etrailer! 451603

- CE23000

Fast service. Good product. 446931

- CE23000

The work great. Tough and durable. 440368

Show More Reviews

Ask the Experts about this CE Smith Trailer Leaf Spring Suspension

  • Replacement Axle U-bolts for Jet Ski Trailer
    The CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc # CE23000 is the closest kit we have. It is made for 1-3/4 inch round axles which is likely what yours is considered, and has zinc plated hardware for corrosion resistance paired with a galvanized plate. We do not have a completely galvanized option in that size. CE Smith is the boat trailer brand, so it will work excellent for your jet ski trailer. I've attached a couple videos to assist.
    view full answer...
  • Recommended Rubber Bushing for 1,800 to 2,200 lb Round Axle
    Unfortunately we don't carry any split bushings that are that size. I assume you are wanting to cushion your axle where it installs at your leaf springs, but that is not recommended. You want to make sure you have a solid connection to your axle and I recommend using U-bolts like the CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles # CE23000 if you don't already have them. The torque required for a fit will not give you cushion but there are other ways to achieve that if...
    view full answer...
  • Recommended Parts for Rebuild/Upgrade of Harbor Freight Trailer
    The Dexter Trailer Idler Axle w/ Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,200 lbs # 20545I-EZ-60-15 is a great starting point to upgrade your trailer. This will give you a standard size axle with good bearings, hubs, and EZ-lube spindles. This is far nicer than the weird sized stuff that comes on Harbor Freight trailers. The Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D # AM31994 will be a great addition to these hubs...
    view full answer...
  • Replacement Components To Upgrade Harbor Freight Folding Trailer
    The Dexter Trailer Idler Axle w/ Idler Hubs - EZ-Lube - 4 on 4 Bolt Pattern - 60" Long - 2,200 lbs # 20440I-EZ-60 will be a great upgrade from the axle that comes on Harbor Freight trailers. The 3-Leaf Double-Eye Spring for 2,000-lb Trailer Axles - 20-3/8inch Long # SP-169275 and hanger kit # APS2 will work well as will the u-bolts # CE23000. The Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range C # AM30630 is rated for 990 lbs each max capacity, so you...
    view full answer...
  • U-Bolt Kit for Smaller Round Axle on Jet Ski Trailer
    It could just be the angle but looking at the picture you attached it appears that you have a 1-3/4 inch diameter axle. This would be consistent too with the smaller 2,000 pound axles that are typically on jet ski trailers like what you have. I do recommend verifying this measurement once more but if this is indeed the case then you can use the CE Smith U-Bolt Kit # CE23000 which features U-Bolts with an inner width of 1-7/8 inches and galvanized plates to resist any rust or corrosion....
    view full answer...
  • Recommended Replacement Axles and Leaf Springs for Boat Trailer with Dual 2,000 lb Axles
    If your axles are 60 inches from hub face to hub face and 48 inches from center of spring to spring, then I recommend the Dexter Trailer Axle with Idler Hubs - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,000 lbs # 20545I-ST-60-10 or the 4 bolt hub version # 20440I-ST-60. If you have longer axles with the hub face to hub face measuring 72 inches with spring centers at 58 inches, then you will want # 20440I-ST-72 for 4 bolt hubs or # 20545I-ST-72-10 for 5 bolt hubs. With any of these axles,...
    view full answer...
  • How to Choose the Best Tires, Wheels and Axle for a Homemade Jet Ski Trailer
    Finding the ideal tires, wheels and axles for your trailer will depend heavily on the overall weight of the trailer. For example, a jet-ski can weigh as little as 400-500 lbs on the light end and around 1,000 lbs on the heavy end. You must also consider the weight of the trailer itself sitting on the axles. Also, keep in mind that if the axle is positioned properly, the tongue of the trailer should hold about 10 percent of the total weight. For example, let's assume that your jet-skis...
    view full answer...

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Info for this part was:

Edited by:
Lindsey S
Video by:
Joshua S
Video Edited:
Dustin K
Installed by:
Cole B
Installed by:
Brent H
Updated by:
Sarah W
Written by:
Amanda M

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