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  1. Trailer Leaf Springs
  2. Universal Group
  3. Double Eye Springs
  4. 27 Inch Long
  5. 3500 lbs
  6. 4 Leaf
4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27" Long
Universal Group

4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27" Long

Part Number: SP-210275
In Stock
$78.93
Trailer Leaf Springs
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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 springs from Universal Group. 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27" Long part number SP-210275 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Universal Group Trailer Leaf Springs - SP-210275

  • Double Eye Springs
  • 27 Inch Long
  • 3500 lbs
  • 4 Leaf
  • 1-3/4 Inch Wide
  • Universal Group
  • 9/16 Inch Eye
  • Standard Grade
  • Nylon Bushings

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.


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: 1,750 lbs
  • Axle capacity: 3,500 lbs
  • Length from center of spring eye to center of spring eye (unloaded): 27"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
    • Eye diameter without bushing: 11/16"
  • Leaf thickness: 3/8"
  • Number of leaves: 4
  • Additional dimensions: see table


Double-Eye Spring

Part NumberABCD
SP-21027513-1/2"14"27"2-3/4"


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-210 Universal Group Double Eye Trailer Leaf Spring - 4 Leaf - 1,750-lb Capacity

Replaces PR427





Customer Satisfaction Score:

Ratings & Reviews

4.8

3579 reviews
5 Stars
(3121)
4 Stars
(339)
3 Stars
(73)
2 Stars
(16)
1 Star
(30)
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.

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See what our Experts say about this Universal Group Trailer Leaf Springs

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    If you are wanting to go to higher capacity leaf springs I would advise against it. The problem is that since the trailer axle is rated for 3,500 pounds you won't gain any additional capacity by switching to higher capacity springs. What it will do is not allow the suspension to compress as much leading to a very stiff and jarring ride for the trailer and anything in it. Another problem is that alternate springs may not have the correct measurements and that would mean that the spring...
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  • Replacement Leaf Springs for Calkins Boat Trailer with 3500-lbs Axles
    I'm not seeing any matches with a CW1820 on that trailer, but it sounds like your trailer has a 3500-lbs axle capacity. You will need to measure your existing leaf springs and then choose the closest match in length; your worn out springs will be a bit longer than a new spring, so you'll typically you'll go down by about 1/2" to find the closest match. For 3500-lbs axles, something like the # e54SR is 25-1/8" long and might be a good option, but there are also a 23-1/8" spring # e59SR...
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  • How Far Apart From Each Other Should Hangers be Welded for Leaf Springs on Trailer
    As a general rule, you will want the distance between the hangers on a leaf spring suspension system to be around a 1/2 inch shorter than the length of your leaf springs. This will allow for some movement with the shackle strap. For example, if you have Double-Eye Springs like # SP-210275 that are 27 inches long, you will want to mount the hangers about 26-1/2 inches apart from each other.
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    From the info I was able to find on the number you listed you do have a Dexter 3,500 lb axle so for a leaf spring you would want the # e54SR for if you need a 25-1/8 inch spring or # SP-210275 if you need a 27 inch leaf spring.
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    The # SP-210275 you were looking at is for a 3500lb axle and is 27" long measured from center of spring eye to center of spring eye. This is the correct spring for your trailer based on the measurements you provided. The next shortest spring would be 2" shorter which would be much too short. For replacement equalizers we have the # TREQR89 which is 8" long and has a center hole of 9/16", or the # TREQR83 which is 9" long and has a 3/4" center hole. For replacement hardware you can use...
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  • Recommended Leaf Spring Replacement For A 1999 MFI Boat Trailer
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  • Torque Specs for Attaching Leaf Springs
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  • Compatibility of Replacement Trailer Suspension Components
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