1. Trailer Leaf Spring Suspension
  2. Universal Group
  3. Leaf Springs
  4. Springs
  5. Double Eye Springs
  6. 25-1/4 Inch Long
3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long

3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long

Item # SP-220275
lowest price pledge
Our Price: $34.62
Trailer Leaf Spring Suspension
Orders above $99 qualify for Free Shipping
Shipping Weight: 11 lbs
Quantity: 
In Stock
Universal Group Trailer Leaf Spring Suspension - SP-220275
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

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter. Lowest Prices for the best trailer leaf spring suspension from Universal Group. 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long part number SP-220275 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (147)
  • Q & A (119)
  • Photos
  • Why etrailer?

Universal Group Trailer Leaf Spring Suspension - SP-220275

  • Leaf Springs
  • Springs
  • Double Eye Springs
  • 25-1/4 Inch Long
  • 4000 lbs
  • Universal Group

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.


Features:

  • 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


Specs:

  • Quantity: 1 leaf spring
  • Spring capacity: 2,000 lbs
  • Axle capacity: 4,000 lbs
  • Length from center of spring eye to center of spring eye: 25-1/4"
  • 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
SP-22027512-5/8"13-1/4"25-1/4"3"


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-220 Universal Group Double Eye Trailer Leaf Spring - 3 Leaf - 2,000-lb Capacity

Replaces PR3






Customer Reviews

3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long - SP-220275

Average Customer Rating:  4.9 out of 5 stars   (147 Customer Reviews)

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 4,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.

- SP-220275
by:

Ordered replacement springs for boat trailer. Price was fair, shipping incredibly fast. I installed them today, perfect fit and back in business. Thanks. 757376



- SP-220275
by:

I bought 4 of these to replace the deformed springs on our 2013 travel trailer that were damaged in a frightening traffic incident in June. I opted for these 2,000 lb. springs versus the 1,750 lb. OEM replacement units since the fit was equivalent and I wanted to ensure sufficient sustained clearance inside the wheel wells. I had no difficulty removing the nylon bushings and installing the bronze ones from the upgraded Dexter suspension kit which I also purchased, and the springs fit perfectly. I'd have given them 5 stars, but they weren't individually boxed so they each suffered some scuffing during shipment which has already resulted in a few premature rust spots appearing. 581394



- SP-220275
by:

I called customer service and worked with William B. He was patient and listened while i described problem and sent pictures to him for review and advice. He took time to search forums and find out specifications of the boat trailer which happened to be quite old. Helped solve a challenging problem and called me back quickly when had some questions about my order. he also sent me an email about the status of the order and let me know when it shipped. I was very impressed with the customer service. I ordered several size options and etrailer was great to work with. The trailer was for a boat MasterCraft Prostar 205 from '90s and wasn't able to measure the springs correctly because it was 3 hours drive away. Thanks for great service. 679746



- SP-220275
by:

932614



- SP-220275
by:

Very helpful on finding the right parts and fast shipping would recommend them Very highly 927705



- SP-220275
by:

Easy and quick ordering. Received within days and items were an exact fit. Thank you. 924198



- SP-220275
by:

923082



- SP-220275
by:

Very easy to order the correct part and excellent communication regarding shipping and tracking. 918302



- SP-220275
by: 11/12/2020

It was easy to install and was better then the original 911440



- SP-220275
by:

These springs are great. Work great in tandem set up with 32 inch axle spacing 904879



- SP-220275
by:

I ordered four (4) strings for by 2015 travel trailer. Placed an order with this company because I had the most confidence of a correct order due to their well organized web site. The order was processed within 12 hours and I had a tracking number. The springs delivered in the MOST IMPRESSIVE packaging, containing strong handles, making them easy for UPS/FedEx and my wife to handle. The sturdy box was constructed such that spring movement was prevented, no chance of box failing. All four (4) springs installed perfectly! I will use etrailer.com again. 900656



- SP-220275
by:

893862



- SP-220275
by: 09/23/2020

899386



- SP-220275
by:

Appears to be a match for my Trail star trailer. 865380



- SP-220275
by:

The springs were the exact fit and still working great. 863478



- SP-220275
by:

looks good 862301



- SP-220275
by:

860520



- SP-220275
by:

Just what I needed. Fit my boat. Arrived fast 858396



- SP-220275
by:

As usual had what I needed when I needed it. Received on time as expected. No damage and installed as expected 852763



- SP-220275
by:

Exactly what I needed at a great price with fast shipping. 852372



- SP-220275
by:

I ordered the springs a couple days after I ordered the Morryde CRE 3000. The Springs got here a couple days before the Morryde. Very fast shipping. I have yet to pull the trailer, but I feel like this upgrade will save me down the road.. Thanks 837675



- SP-220275
by:

Quality parts that fit. Thanks Leo 829950



- SP-220275
by:

Had a broken spring on my 16 year old trailer. Found correct parts to replace all 4 springs and hardware in one place. Everything fit and worked great at reasonable prices. 821099



- SP-220275
by:

Worked well 811396



- SP-220275
by:

I had the pleasure of working with Mariah on a return and a reorder. She displayed outstanding knowledge and gave me great information on getting the correct size springs. I can't say enough good thigs about her...Thanks for all your help Mariah! 798195


29
158
Show More Reviews

Ask the Experts about this Universal Group Trailer Leaf Spring Suspension

  • Correct Leaf Spring for Trailer with Lippert 3,500 lb Axle
    Thank you for the photo! I was able to use the serial number on your axle to determine which is the correct replacement leaf spring for your trailer. For this, you are going to want to use the 3-Leaf Double-Eye Spring part # SP-220275 which is a double eye leaf spring that is 1-3/4" wide, has a 4,000 lb total weight capacity, and a 25-1/4" eye to eye measurement. The measurement you provided of 26" long is correct but the leaf spring needs to be measured while unloaded as it will lengthen...
    view full answer...
  • Axle Placement and Suspension System for 20,000 lb Bumper Pull Trailer
    For your trailer, the axle placement will dictate the hanger placement as will whether you use double eye springs or slipper springs. When positioning a trailer axle or adding an additional axle, the key is to make sure that the axles are located in just the right position so that roughly 10 to 15 percent of the total trailer weight is placed on the tongue. For a heavy duty trailer like you reference I recommend using the slipper springs # SP-159275 along with the Dexter Tandem-Axle...
    view full answer...
  • Recommended Leaf Springs and Equalizers for Triple Axle Trailer With Double Eye Springs
    I saw you were looking at double eye leaf springs so we will assume that is what you have. In regards to leaf spring hanger spacing, the most common for a triple axle trailer is 29-1/2" first to second (center to center), 34" second to third (center to center), and 29-1/2" third to last (center to center). Therefore, it would be best if you would place the leaf spring hangers accordingly. Once the leaf spring hangers are in the above positions then you have a few options based on axle...
    view full answer...
  • Replacement Leaf Springs for Single Axle Trailer with 26 Inch Long Old Leaf Springs
    Correct, the loaded and unloaded length for a leaf spring will be different. In order to choose the correct replacement you will need to remove all weight from one side of the trailer and then measure the eye to eye spacing of that leaf spring. The new leaf spring you choose should then be very close to this but it can also be a bit shorter as leaf springs will flatten out over time as they wear. The most likely replacement we have for you is part # SP-220275 which measures 25-1/4"...
    view full answer...
  • Determining Correct Length Replacement Leaf Spring
    Trailer leaf springs can grow longer after many years of use. A new springs that measures 25-1/4-inches long could easily measure 25-1/2-inches after years in service on a trailer. Springs can lengthen as much as 3/4 of an inch. If your old spring measured 25-1/2 you can safely conclude that it is actually a 25-1/4-inch. Our main leaf spring page is linked for you. Just click on your dimension and axle weight rating to see suitable options. Generally you want no less than 3-inches...
    view full answer...
  • How To Measure Leaf Spring For Replacement on Utility Trailer
    I recommend to jack up the trailer so the axle hangs freely then measure from straight across from the center of one eye to the center of the other eye to see what you get. Since leaf springs can flatten over time this is the best way to get the most accurate measurement possible. Once you have that measurement it is easier to replace the leaf springs. It sounds like you may have 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles part # SP-220275 that measures 25-1/4" long but you would...
    view full answer...
  • Leaf Spring Recommendation for Trailer that Weighs 3,750 lb with 25.5 inch Leaf Spring
    For the length of your current springs and the weight of your trailer loaded the leaf spring I recommend the part # SP-220275 which is for a 4,000 lb axle and has a 25-1/4 inch overall length.
    view full answer...
  • Double Eye Leaf Springs 25-1/4 Inches long by 1-3/4 Inches Wide
    For your leaf springs on a 2,000 lb axle, you only need 1000 lb springs x 2 as you stated. With the dimensions you gave, we only have 2000 lb capacity springs currently available. They are the 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long # SP-220275. As I stated these are twice as strong a spring as you need, so it will give you a more rigid trailer ride but will fit your hangers and your axle. If you choose to use these springs, you will not increase the weight...
    view full answer...
  • Availability of Replacement Leaf Spring That is 25-3/4" Long
    We may have the exact leaf springs that you are needing depending on how you measured your current leaf springs. When measuring your leaf springs you will want to measure from the center of one eye to the center of the other eye. The Universal Group 3-Leaf Double-Eye Spring # SP-220275 might be the exact measurement that you took as it is 25-1/4" long from the center of one eye to the center of the other eye. If you measure slightly off this leaf spring could still work as it is not...
    view full answer...
  • Can 4,000 lb Axle Leaf Springs be Used on a 3,500 lb Axle for a
    Yes, you could use leaf springs for a 4,000 lb axle, like part # SP-220275 (rated for 2,000 lbs each), with a 3,500 lb axle but it will make your ride a bit more stiff. The only times that a leaf spring would become damaged is if it is overloaded or has a defect from the manufacturer. Since overloading a trailer is actually a pretty common occurrence I recommend checking to make sure that you are within the weight capacity of your trailer. It is also important to note that even if you...
    view full answer...
  • When Converting from Tandem Axle to Triple Axle Where Does Third Axle Install
    When going from a tandem axle trailer to a triple axle trailer you want to install the center axle where the current center hanger is for your tandem setup. This means you have to remove both of your current axles to position them properly. This gives you the additional axle support you want without throwing off how much tongue weight you have relative to the trailer weigh. We have triple axle hanger kits like the part # APTT5 which you could use too. You should note that you will be...
    view full answer...
  • Figures Used to Determine Tongue Weight and Trailer Weight for Axle Placement
    If your trailer weighs 16.8k lbs yeah you'd want to get the tongue around 1,700 like you mentioned. At 3,600 lbs tongue weight your axles are too far back and would need to be brought forward to better balance that out. In the picture you mentioned the wheel weight and tongue weight (actual) are weights that are recorded with scales. When you then go to determine the movement needed to obtain the correct placement for ideal tongue weight you use the formula with the total weight of the...
    view full answer...
  • Axle Placement Recommendation for a V-Nose Trailer
    With a V-nose trailer axle placement is the same as a flat nosed trailer. The same 60/40 equalizer hanger point applies. To determine the location for the front and rear hangers on your tandem axle V-nose trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40...
    view full answer...
  • Recommended Hanger Placement for 7K Tandem Axle Trailer
    I have attached an article to help with correct axle placement on your 18-foot tandem-axle trailer. Then based on correct placement, I recommend using a hanger kit like # APT5. I then recommend using the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" Long # SP-198275 which will work well with the spacing of your hangers at 29-1/2 inches on center which will put your axles at 33-1/2 inches on center. See attached photo.
    view full answer...
  • Recommended Hanger Spacing for 25-1/4 Inch Leaf Springs and 7-3/4 Inch Equalizer
    For a tandem axle trailer that uses 25-1/4 inch long leaf springs like # SP-220275 and a 7-3/4 inch equalizer like the TruRyde # TREQE1, the hanger spacing should be approximately 29-1/2 inches. Keep in mind that this is simply a starting point and it's possible that you will need to adjust this dimension slightly on your trailer.
    view full answer...
  • Should Leaf Spring Capacity Match Trailer Weight or Axle Weight for Best Ride Comfort
    You are indeed right to think this way. When picking out the appropriate leaf springs for your custom built trailer you will want to choose them based on what the actual loaded weight of the trailer will be. Just make sure that the leaf springs have a combined weight capacity that matches or exceeds (within reason) the 1,200 pound max weight of your trailer. Matching the leaf springs to the 5,000 pound axle you plan on using will give you an awfully rough ride with a 1,200 pound trailer....
    view full answer...
  • Selecting Replacement Leaf Springs for Sea Lion SK-20-2200 PWC trailer
    We can help you with replacement leaf springs and related parts like shackle straps and suspension bolts for your Sea Lion SK-20-2200 PWC trailer. The pages I linked for you display all types of suspension parts and double-eye leaf springs. For new springs you do definitely need to replace both leaf springs on the axle since not doing so can cause tracking problems. The best way to go is to completely remove one of the leaf springs so that you can measure its eye-to-eye dimension. You...
    view full answer...
  • Why Are Leaf Spring Bushings Narrower Than the Springs
    The bushings aren't designed to extend past the edge of the spring. When the shackle bolts are tightened, they're not meant to be drawn down so tight that the spring hanger or shackle is in contact with the side of the spring eye. That's why the spring/shackle bolts will typically have the knurling on one end, so they're locked into place.
    view full answer...
  • Recommended Components For Tandem Axle Upgrade On Loadrite MC 1800 3 Rail Motorcycle Trailer
    Thank you for your email answering my questions on your axle. I have the information to help you with your tandem axle application. Your current axle is not a standard size, so I recommend replacing your current axle as well. There are two routes to go for this, the more traditional style or the axle-less. For the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs, # A20RS545, you simply mount the axles square and the suspension is integrated....
    view full answer...
  • How To Determine Replacement Leaf or Slipper Spring for 1996 Nitro Bass Boat Tandem Axle Trailer
    You will need to measure the distance from the center of each mounting point on the end of the leaf springs. If you look on the page for part # SP-220275, the measurement you will need is measurement A as shown in the diagram. If you have slipper springs, you will need to take 4 measurements. 1. The distance from the center of the mounting hole to the end of the slipper spring 2. The distance from the center of the mounting hole to the highest point of the slipper spring. 3. The...
    view full answer...
  • How to Pick Out Leaf Spring for a 2003 Starcraft Model 2106 Launch Series
    You are going to have to measure your current springs to pick out the right length replacement. You will need to know the length of the springs when they are unloaded (allow for a bit of stretching due to age) and then the axle capacity of the trailer so that you can pick out the correct spring. If you check out the chart at the link I attached you will see all of the springs we carry. There is the length and capacity listed. Priority one is the correct capacity and then going with a...
    view full answer...
  • Is There a Difference in Ride Quality Between 4-Leaf and 3-Leaf 3500 lb Leaf Springs
    The number of leaves in springs of comparable weight capacity has no bearing on the ride quality. Both the SP-220275 you mentioned and the SP-212275 which has 4 leaves share the same eye-to-eye and height dimensions. Leaf springs should be replaced in pairs. For a tandem axle trailer, its best to ensure that all of your springs have the same number of leaves. I have linked you to our Trailer Suspension FAQ page.
    view full answer...
  • How to Determine Axle Locations on a Triple Axle Trailer
    Determining the location of the axles on your triple axle trailer can be difficult, but basically you want to locate the axles so that the tongue weight of the trailer is 10 percent of the total trailer. I attached a picture that details the process. Typically on triple axle trailers the center axle will be located 60 percent of the way from the front of the trailer and 40 percent from the back. This isn't always the case as boat trailer and some flat bed trailers have the axles more...
    view full answer...
  • Can Heavier Rated Leaf Springs than Needed be Used on a Trailer
    If the leaf spring part # SP-220275 that you referenced matches up dimensionally to what your trailer has and has a capacity that is 400 lbs more than needed it would work just fine. Having a bit extra capacity for the leaf springs would not cause an issue at all. At worst it may cause the trailer to bounce a bit more unloaded.
    view full answer...
  • 3,500 lb Leaf Springs and Hanger Kit Recommendation for a Mobile Home Trailer
    Mobile home axles/suspension are typically designed for one time use, so picking out components to work with mobile home components can be tricky. Your best bet is to do what you did with your axles and just start over with quality stuff that you will know will work. First let's start with a spring. For a 3,500 lb spring the part # SP-212275 would be a great choice. For a u-bolt kit you would want part # APUBR-1. For a tandem axle hanger kit you would want the part # APT3. The Never...
    view full answer...
  • Parts Needed to Convert a Single Axle Marine Master Trailer to a Tandem Axle Trailer
    We do have tandem axle suspension kits, leaf springs and u-bolts to convert a single axle trailer to a tandem axle trailer, but the conversion will be a little more involved than just adding a second axle. To ensure you purchase the correct parts, you will want to look at your current axle and suspension. You will need to know the axle weight capacity, axle diameter and leaf spring dimensions to choose the correct suspension parts for a tandem axle trailer. I have attached a link to all...
    view full answer...
  • How to Determine Axle Positioning on a 40 ft Long Dove Tail Trailer
    To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger. For example, if the trailers frames length is 40 feet like yours, then the center-line...
    view full answer...
  • Placement of Front and Rear Hangers When Building a Tandem Axle Trailer
    To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger. For example, if the trailers frames length is 10 feet, then the center-line location...
    view full answer...
  • Typical Capacity of 3 inch Diameter Trailer Axle
    A 3 inch diameter round trailer axle normally has a 6,000 lb capacity. That would also match up to the other info you listed as well.
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality trailer leaf spring suspension for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer leaf spring suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Installed by:
Jeff D
Written 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 800-298-8924