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3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long

3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long

Item # SP-216275
Our Price: $40.79
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Trailer Leaf Spring Suspension
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Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter. Great Prices for the best trailer leaf spring suspension from Universal Group. 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long part number SP-216275 can be ordered online at or call 1-800-940-8924 for expert service.
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Universal Group Trailer Leaf Spring Suspension - SP-216275

  • Camper
  • Car Hauler
  • Utility Trailer
  • Leaf Springs
  • Double Eye Springs
  • 23-1/8 Inch Long
  • 3500 lbs
  • Universal Group

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.


  • Leaf spring acts as part of your trailer's suspension system
    • Provides attachment point for your trailer's axle
  • Multiple leaves allow flexibility to absorb road shock
    • Allows for a smooth ride
    • Reduces wear and tear on trailer
    • Ensures level ride on bumpy and uneven surfaces
  • Sturdy steel construction
  • Nylon bushings included
  • Pre-mounted hangers or aftermarket hanger kit (sold separately) required for installation
    • Spring attaches to hanger mounted on trailer frame at one end
    • Other end connects to shackle straps suspended from hanger or equalizer


  • Quantity: 1 leaf spring
  • Spring capacity: 1,750 lbs
  • Axle capacity: 3,500 lbs
  • Length from center of spring eye to center of spring eye (unloaded): 23-1/8"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 11/16"
  • Leaf thickness: 3/8"
  • Number of leaves: 3
  • Additional dimensions: see table

Double-Eye Spring

Part NumberABCD

Note: To ensure proper axle alignment and suspension performance, leaf springs should always be replaced in pairs.

Leaf springs are an integral part of your trailer suspension system. The leaf springs provide the attachment points for your trailer's axle, suspending it from the frame of your trailer. Each spring flexes to absorb road shock as you travel, allowing the axle to move somewhat independently of the rest of your trailer. This helps to reduce wear and tear on the trailer and also ensures a smooth ride.

Double-eye leaf springs attach to hangers that are welded onto your trailer. One end of this spring will attach directly to the hanger with a suspension bolt. The other end will attach to shackle straps that are suspended from a hanger. These straps allow the spring to move and pivot so that it can better compensate for uneven pavement. If you have a tandem- or triple-axle trailer, the shackle straps will be attached to the equalizer that connects multiple springs.

To mount this spring, you will need hangers, shackle straps, and suspension bolts. If you are simply replacing a spring, you may still have hangers welded onto your trailer. You should, however, replace your shackle straps because they are usually the first component to wear out. You may choose to replace old suspension bolts as well. It is recommended that you replace the other leaf spring in your setup at the same time. Because springs can sag and elongate as they wear, this new spring may not exactly match the old one, and the alignment of your trailer could be affected.

If you are fabricating a trailer, you will need to purchase a hanger kit for installation. To determine the type of hanger kit that you need, you must know the specific type of leaf spring that you have, as well as your axle capacity. Depending on the hanger kits used with them, springs can be configured to work for single-, tandem- or triple-axle applications. Hangers and other suspension components can also be purchased separately if there isn't a complete kit that works for your setup.

UNA-216 Universal Group Double Eye Trailer Leaf Spring - 3 Leaf - 1,750-lb Capacity

Replaces 1724

Customer Satisfaction Score:

Customer Reviews

3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long - SP-216275

Average Customer Rating:  4.8 out of 5 stars   (115 Customer Reviews)

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 3,500-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.


Installed on a 2018 Prime Time Avenger ATI. Rear axle failed (lost its arc resulting in a burred spindle and inconsistent tire wear). During inspection of the hanging components, found the OEM shackle links failed or in the process of failing. Decided to replace the spring in the process. Took approximately 12 hours (dodging periodic rainstorms) to replace rear axle and the suspension kits and springs for both axles. Installation was straight forward without complexity. I can now rest easy that these parts will last longer.


These springs are much thicker than the stock ones on my 1996 Karavan Jetski Trailer. They fit perfectly and were delivered quickly.


These parts were for a 1977 Citation Travel trailer frame that someone had cut the springs off because the electric brake drums were to tight to roll and quite rusty so adjustment was not practical in the field.The springs and assembly pieces arrived promptly. The installation was completed in one hour. All parts fit exactly as they should. The goal is to make a storage trailer unit 8 X 18 feet.


Upgrading the suspension on my 2006 Fleetwood Pioneer 250FQ travel trailer.
Everything went together flawlessly.
Thanks eTrailer for excellent customer service! Paula S. was very helpful!


Good quality replacement for the money. Spring is ruggedly designed. Fit the trailer frame as measured.


Allo tanks for fast delivery I’m appreciate your good service and esy tracking and I’m received 2 good parts


Theses springs were exact replacements for my 20 year old Mallard that had suffered a broken spring. Tremendous value, I bought all 4 springs with replacement greasable bolts and new bushings for less than a local rv shop wanted for just one spring. My feeling was that if one spring had let go what other springs had leaf cracks as well? With this price, replacing all 4 was a no-brainer.

We upgraded our camping trailer last fall so I’m no longer in a position to do a follow up review. Sorry, but the parts worked great while we owned it and gave piece of mind on the road. Thanks again for the parts and service you folks provide, you’re top notch in my opinion!
Alan W - 07/31/2018


I haven't installed them yet because of the weather. When I do I will take pictures and add them to my review.

Everything went very well. No problems encountered while installing the equipment. Installed on a 1992 Lance 5th Wheel.
Loran B - 03/18/2018


Was all there, packaged well great to find parts like this


Easy to install


Worked very well on a homemade trailer I had purchased that they used a "trailer house" axle and single spring set up that was not providing any spring action at all. I should of also ordered shackle bolts with the springs. Old ones were rusted terribly and were a bear to get off. Bought new shackle bolts locally to replace. Trailer rides much more smoothly now. Thank-you. Wish I would of taken before and after pictures but I forgot to do that. I highly recommend etrailer for your selection, reasonable pricing and fast shipping. Thank-you!


Fast delivery easy install. Made my rv level and smooth riding


This is my 3rd item ordered from etrailer, and I will be back when necessary! The customer service is great and the products have all worked very well. I was even offered earlier shipment for being a repeat customer! That was a nice surprise


Easy install, perfect fit.


The replacement trailer spring set was out of stock but Michelle watched for it with care and kept me informed. She let me know when it came in, shipped it quickly and made sure I had all the nuts and bolts needed to replace my broken springs. Have ordered from etrailer in the past and the quality and price can't be beat.


Excellent selection, price and customer service


I have had these for about a year on my dual axle travel trailer. Trailer weight is usually around 6000 lbs when towing it. I camp out in the middle of nowhere and go over some "roads" most wouldn't want to take. These springs have not had any problems so far.


These springs have performed great. Perfect it and keep my tandem axle trailer towing straight and true. Trailer tires are wearing perfect.
I have peace of mind knowing spring issues are solved and I can tow with confidence.
Thanks for great products!


From ordering to installation and use , it's been a pleasure doing business with e trailer. They make sure I have the correct part even the part was quality.


The springs I replaced in the older 36ft fifth wheel camper we had arrived quickly and fit perfect at an excellent price. We camped the rest of the season and sold the camper to some people out of state and it pulled great with not a problem home for them as well. Will definitely be were I order my trailer parts from in the future.


Springs were purchased to convert a dollie to a sprung trailer. They were easy to install and looks like they'll do just fine. Delivery was right on time and all went together a-okay. Good people to do business with.

Just fine - no problems.
Robert H - 09/08/2018


They look like really solid leaf springs they got hear at a decent time. But I can't use them cause I ordered them to smale. I needed 33 1/2 not 23 1/8 and wrong size bolt eye mine was 1/2 and width was not 2 inch but I was just going to get spacers


I bought two of these as spares for an upcoming trip to Alaska. They look like the right ones for my trailer. Unfortunately they have plastic bushings, but I ordered a set of bronze bushings from another source to replace them. It would have been more convenient for me if etrailer offered these spirngs with the bronze bushings already installed. Does anybody really use the plastic ones?


The size and weight of the replacement springs are very nearly identical to the
originals except for the bushings. I got bronze bushing to replace the cheap plastic ones. Even they have almost too much gap which means to check on them and all
other moving parts during and after each trip.


I have yet install the product I've purchased from eTrailer, but I can say the complimentary shipping and tracking and the low priced parts has been a very pleasant experience. My order was correct once inspected upon receiving.

Show More Reviews

See what our Experts say about this Universal Group Trailer Leaf Spring Suspension

  • Axle and Suspension Hanger Placement on Tandem Axle Trailer
    The placement of the axles is going to depend on the gross trailer weight. I have included a picture that shows how to determine where the center point should be between the axles. Placement of the hangers is going to require mocking up the hangers to determine where they are going to fit. But as a guide you can use the following as a starting point: Distance between front and center hangers and between center and rear hangers, approximately 29-1/2 inches (74.93 centimeters).
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  • How to Determine Hanger and Axle Spacing Building a Trailer with 26 Inch Long Double-Eye Springs
    On a spring that is 26 inches eye to eye on center and a single axle trailer you will want the hangers to be up to 1/2 inch less than the spring length so 25-1/2 inches on center between the front and rear hangers. For the ideal axle position you can follow the formula in the picture I have included. It covers single or tandem axle set ups.
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  • Replacement Trailer Leaf Spring that Measures 60cm Long x 50mm Wide
    I have linked our main page for trailer springs, which are offered in both double-eye and slipper types. Your 50mm width is close to the 2-inch width we offer but your 60cm length (23.6-inches) is not a match for the width. 2-inch wide springs are available in the following lengths: 26-1/8 Inch Long 26-5/8 Inch Long 29-1/2 Inch Long 30 Inch Long Please note that springs can become elongated after years of use but they do not become shorter. I suggest you re-measure your spring width...
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  • Can a Curved Equalizer be Replaced with a Straight Equalizer
    Different trailer configurations require different equalizers. It all depends on the springs, axle spacing, hanger spacing, height needed and so on. In many cases if you want to change the equalizer to something with different measurements you would also have to replace other components such as the hangers and springs in order to keep everything in the right location for that specific trailer. I have included some links to our help articles on double-eye and slipper spring trailer suspension...
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  • Replacing a Broken Leaf Spring on a 2007 Starcraft 2406 Pop Up Trailer
    When replacing a broken leaf spring on your trailer there are a few things to note. The most important part about a leaf spring being compatible with your trailer is that it is rated for at least the same weight capacity as your trailer axle. If it is rated lower you could overload it. A higher rated leaf spring would work but it would also make your trailer suspension stiff. Other than weight capacity you simply need to make sure that it has the correct width, is the same style, and has...
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  • Leaf Spring Recommendation for 3,000 lb Axle on Cikira Travel Trailer
    The closest leaf spring option we have would be the spring part # SP-216275 which is a 3,500 lb axle leaf spring that is 23-1/8 inches long. You'll have to move you suspension hangers to accomodate the longer springs but this will work well for you.
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  • What is Recommended Clearance between Trailer Axle and Frame
    The recommended clearance with leaf spring suspension on an unloaded trailer is between 2 - 2-1/2 inches. You should have sufficient clearance with your loaded trailer, as leaf springs only tend to deflect 1-1/2 inch when carrying a load.
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  • Correct Replacement Leaf Spring for 2,800-lb Dexter Axle
    The distance between the spring eyes should be measured from the center of each eye. I've attached an image showing the correct locations to measure to obtain leaf spring measurements. However, from the given information, it sounds as though you have the correct replacement part with the 3-Leaf Double-Eye Spring # SP-216275. I've also attached an article on double-eye trailer suspension systems for you.
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  • How to Get Correct Length Measurement of Trailer Leaf Springs
    I'm assuming that you're wondering how much the leaf springs flatten out over time. Usually it won't vary by more than 1/2 inch or so, but there's a sure way to get an accurate measurement. The best way to get an accurate length measurement for a leaf spring is to jack the trailer up so that the axle is hanging free. You can then get a center eye to center eye distance that'll be right on the money. By letting the axle hang, you'll be able to get a correct measurement.
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  • 3,500 lb Leaf Spring Availability that is 23-1/8 inches Long
    If you dimensions all match the part # SP-216275 except the height from the pin to the eyes is a bit less (they flatten out over time), this spring will still fit and work well. Especially if you have a load on your trailer as well. The two big things to use when picking out leaf springs is the length of the spring as well as the axle capacity. This is for a 3,500 lb axle. If that matches your trailer this is just what you need.
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  • Replacement 23-1/4 Inch Leaf Springs for 1984 Prowler Trailer
    If your 1984 Prowler Trailer has 3,500 pound axles, I recommend sticking with a 3-Leaf spring like the Universal Group 3-Leaf Double-Eye Spring # SP-216275 to replace your 23-1/4 inch springs. This leaf spring measures 23-1/8 inches from eye to eye, which will give you a much better fit to replace the existing springs on your trailer. A leaf spring of closer to 25 inches might be too long for the current hanger setup on your trailer. Older leaf springs will elongate a bit over time, meaning...
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  • How to Pick Out Replacement Leaf Springs for Older Komfort Fifth Wheel
    In order to pick out the correct springs we need a couple pieces of information. The length of the spring without a load on it and the axle capacity needed. Your springs being totally flat does indicate that you need to replace them but I would need to know the unloaded length from spring eye to spring eye and then the axle capacity. Jack the trailer up so that the spring no longer has a load on it and measure it. Subtract around 3/4 of an inch since springs flatten and stretch out over...
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  • Replacement Double Eye Leaf Spring That is 23" Long
    The closest spring I have to that is the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles part # SP-216275 this is 23 1/8" eye to eye and is built for use on a 3500lb. axle so even though it is not a 4 pack it may have the capacity you need. If you have more details on the trailer and it's capacity I can try to come up with a different solution for you if you feel this will not work for you.
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  • How to Determine Correct Replacement Slipper Springs
    What happens to slipper springs over time is they elongate and flatten, which is exactly what seems to be what happened with your springs, as opposed to the wrong length being put on (that is, of course, possible, but less likely). You can replace your springs but there are a few things you need to know, starting with the weight rating of the axle; from there you need the length of the center eye to the end of the spring while taking into account the fact your springs have elongated....
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    Image 1 for Image 2 for
  • Hanger Spacing When Using 23-1/8" Double-Eye Leaf Spring on Single Axle Trailer
    On a single axle trailer you will want to have a hanger spacing of around 22-3/4 inches when using the 23-1/8 inch long Double-Eye Spring # SP-216275. This will allow that rear shackle to correctly lean away from the axle for proper suspension travel. I have attached a short video review on this leaf spring that you can check out as well.
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  • Leaf Springs Keep Breaking On Tandem 3,500 Axle Trailer
    If you are having issues with leaf springs breaking then you first need to verify the weight capacity of the leaf springs which should be based on the axle capacity. If the leaf springs are rated appropriately then you will need to make sure the trailer is not overloaded. If you like, you may be able to use a higher rated leaf spring to fix your issue but this would also equate to a slight harsher ride therefore it is important to make sure you have the correct rating and are not overloading...
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  • Replacing Suspension On A 1995 Mallard 23P Travel Trailer
    Before removing and potentially replacing the leaf springs, trailers sometimes lean to one side because of the way it's loaded. This uneven loading can cause the leaf spring to wear down quicker over time but could maybe be corrected by reorganizing the weight in your camper. Given it's a 1995, it could just be time for replacement as well. Trailer leaf springs need to be selected based on the axle weight rating, as well as on the spring type (slipper or double-eye), length and width dimensions....
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  • Replacement for 23-1/4 Inch Long, 2 Inch Wide Double Eye Leaf Spring
    So long as other dimensions match, you can replace your 2 inch wide leaf spring with the narrower 1-3/4 inch leaf spring, though if you have any added movement with the narrower spring, which is possible, you will want to change out your hangers as well. The closest we have in length to the spring you mentioned is the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles # SP-216275 which measures 23-1/8" long from center eye to center eye. That said, they are rated for 3,500 lb axles, and...
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  • Determining Which Replacement Leaf Spring For 2005 Forest River Flagstaff Popup Camper
    The closest spring we have to what you need for your daughters 2005 Forest River Flagstaff Popup Camper is the 3-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 23-1/8" Long # SP-216275 which measures 23-1/8" center of spring eye to center of spring eye which is likely what her trailer needs due to springs getting longer slightly as they wear out. The # SP-216275 is rated for 3500lb axles, or 1750lbs per spring which will still work for her trailer, and though it has 3 leaf's the rating...
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  • Correct Replacement Leaf Springs for Trailer with Dexter 3,500 Lb Axle
    In order to find the correct replacement leaf springs for a trailer you'll need to know the type (slipper/double eye), weight capacity, and unloaded length. The springs will stretch over time so the new replacements will be shorter. If you have a 3,500 lb axle with double eye springs then you'll likely need 3-Leaf Double-Eye Spring part # SP-216275 which measure 23-1/8" long.
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  • Replacement Leaf Spring Recommendation for Trailer with 3,500 lb Axles and Length 23-1/4
    Springs tend to stretch over time as they wear out and flatten. This means that you need to go with springs that are slightly shorter than what your old springs measure. For that the best option is the 3,500 lb leaf spring part # SP-216275 which measures 23-1/8 inches. This will work great as a replacement for the spring dimensions you mentioned. Around 1/4 inch shorter than the worn out spring is the best option typically. But that's not a hard and fast rule so for your situation the spring...
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  • Replacement Trailer Leaf Springs for 2005 Terry M-250RKS with 3,500 lb Axles
    Most likely the best leaf spring option we'll have for your 2005 Terry M-250RKS is the # SP-216275. This depends on how you measured your leaf springs though. This spring measures 23-1/8 inches from eye center to eye center. If you measured your springs with the weight of the trailer on the suspension they would have stretched out slightly. When you combine that with the fact that old springs typically stretch slightly over time the # SP-216275 could easily be the correct size. Worse case...
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  • Replacement Boat Trailer Leaf Spring Due to Age and Corrosion of Salt Water
    I personally have never seen any galvanized or other coatings put onto leaf springs. I agree with you that whatever coating that may be put on them would surely wear or peel over time. The most important thing with replacing leaf springs is getting the correct spring. For this you will want to know the the specifications of your trailer as well as what springs you had. I have included a picture to help with the measurements. Weight Rating of Axle and Trailer Number of Spring Leaves Eye...
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  • Replacement Leaf Spring For a Trailer With a 24" Eye Center to Eye Center and 3 Leaves
    It sounds like you may have the 3-Leaf Double-Eye Spring # SP-216275 on your trailer. This spring is 23-1/8" long from eye center to eye center when fully relaxed and has 3 leaves. As a leaf spring is loaded with weight it will get longer and overtime as it loses its curve it will measure to a longer length. You can follow the curve of the leaf spring from the center bolt in the leaf spring for a measurement of 12-7/16". This leaf spring is rated for a 3,500lb trailer axle. Do remember...
    view full answer...

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