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5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long

5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long

Item # SP-111275
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Trailer Leaf Spring Suspension
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Universal Group Double Eye Springs Trailer Leaf Spring Suspension - SP-111275
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Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 6,000-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. 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long part number SP-111275 can be ordered online at or call 1-636-306-4830 for expert service.
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Universal Group Trailer Leaf Spring Suspension - SP-111275

  • Leaf Springs
  • Springs
  • Double Eye Springs
  • 25-1/4 Inch Long
  • 6000 lbs
  • Universal Group

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 6,000-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: 3,000 lbs
  • Axle capacity: 6,000 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: 5
  • 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-111 Universal Group Double Eye Trailer Leaf Spring - 5 Leaf - 3,000-lb Capacity

Replaces PR5

Customer Reviews

5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long - SP-111275

Average Customer Rating:  4.8 out of 5 stars   (282 Customer Reviews)

Double-eye leaf spring acts as part of a trailer's suspension system by providing an attachment point for a 6,000-lb axle. Spring flexes to resist shock and also ensures a smooth ride. Includes bushings with 9/16" inner diameter.


Great looking, heavy duty springs. The original springs were completely flat-just not heavy enough. The tires actually rubbed on the underside of the wheel well. These springs have given me 2" in added clearance.


Leaf springs were as described. Easy and quick install with no issues. Improved my trailer ride due to the heavier springs I put on.
As with other reviewer‘s I agree with them that these leaf springs should come with brass bushings and not the nylon ones. Nylon bushings will deteriorate quickly compared to the brass bushings. Don’t know why these are not coming with them since it’s a low cost item.


I ordered leaf springs, equalizers and wet bolt kit to replace broken and worn springs on my fifth wheel. I ordered the wrong length springs on the first order. My replacement order arrived in only two days. Customer service made the return of the original order super easy and pain free. Really pleased with the products and service. This is not my first order from etrailer and I’ll definitely be back!


The leaf springs I got are very well made they was the exact size I ordered. They are very good priced I will order more parts from etrailer they have good prices.


My large camper flattened the factory springs so decided to upgrade them. I went from a four leaf 2500 lbs. spring to a five leaf 3000 lbs. spring. With the addition of a 4 inch equalizer between the two springs to make them horizontal, I finished the job in about 5 hours (including jacking up the camper and supporting it). On a 1/2 hour road test to verify repairs, I immediately noticed a big difference in ride and handling. I am so glad I did this. etrailer was great to deal with also from pictures and comments to items offered. They answered my questions promptly and shipping was a breeze.


Great upgrade from what it was these units are pretty well over loaded soon as you take it off the lot 4400 pound spring assemblys and camper is 8600 empty these 5 leaf units should help


I received both leaf springs in two days after I ordered them. Super fast delivery! And they fit and worked great. This is my second order and I am very pleased with the shipment and operation of the parts. I recommend purchasing these items from


Joann was very knowledgeable and very helpful.. my trailer axle and parts arrived on time and everything was in doesn’t get any easier..


Springs showed up in timely fashion they are fairly easy to install, it would be nice to be able to order with brass bushings instead of the plastic. I replaced and upgraded to 3000lb springs the old springs only 5 years old and the nylon bushings were totally shot.


We broke two springs on our 5th wheel so I found a good spot to stay and ordered the springs and all other parts from E trailer. Getting the old springs and related hardware off was a nightmare, but I managed. Putting the new springs and other hardware on was easy. I received great help from several of the videos at I did replace all 4 springs and all other suspension hardware that wasn't welded on. Now the camper sits up about 4 inches higher, rides much better and is much more stable going down the highway. I feel much safer now, and need to since wife and I are full time Rvers. Did I mention that the prices were great?


The new set of springs seem just fine after a year of use. A set of 4 of these springs replaced the OEM springs after an equalizer failure bent one spring. The new springs appear to be more substantial than the OEM springs. All 4 had the same eye to eye spacing, so I didn't worry about tire wear from misalignment just because I replaced the springs. The OEM springs were about 6 years old and had flattened some. I had no installation difficulties. I did replace the nylon bushings with bronze bushings along with a set of wet bolts. The hardest part of the spring replacement job was identifying exactly which OEM spring was installed.


Springs seem OK. Advertised dimensions were accurate. I would rather have a metallic bushing in the eyes rather than the plastic bushings these springs use.

I recommend to use the bronze bushing part # D014-077-00
Bronze Bushing - 9/16" Inner Diameter, 11/16" Outer Diameter - 1-3/4" Long - Qty 1
. This is the best option we carry that will fit this particular spring.
-- Etrailer Expert Heather A - 02/22/2022


I recently bought Dexter E-Z Flex equalizers and was told by multiple forum members, "Since you're unbolting your leaf springs anyways it's cheap insurance to replace your 4 leaf springs with 5 leaf springs"
After much online research I found etrailer had the best price when you took advantage of their free shipping special.
I could not be happier with their service and FAST shipping!!!


My spring on opposite side of trailer that I replaced in October 2020 is already rusting! It’s been in the water once when I launched boat in June !!! June 2nd is when I placed order.. October 15th is when it arrived!! Not real happy with poor quality after that wait makes this a once in a lifetime experience meaning I will never go this route again! In closing I should add that I went to a local guy and purchased the U-bolts and correct locking nuts costing me xx plus dollars.. want to take back/credit me for the mounting kit

Sorry to hear about this. Customer Service will reach out to you.
-- Etrailer Expert Sierra K - 10/20/2021


I broke one of my four leaf leaf springs and this was an upgrade, good quality and easy to install. Only thing I didn't like was the shipping box, the springs came out of it somewhere in shipping and we're scratched up. Should have replaced my old ones years ago. My trailer sits a little taller maybe a 1\2 inch. Love them. Fit perfectly. I have other trailers and will buy again. Can't believe the local shops want more than double for the same capacity spring.


replaced the 1750 springs just fine, put the trailer bed 2 inches higher. gave 2 more inches clearance between the tire and fender.


I used this 5-leaf spring (both sides replaced) to replace a 4-leaf version that had been replaced twice during the previous year on my 17' single-axle RV trailer. On the one year anniversary of the 5-leaf spring installation I can happily say that it is still intact -- and the trailer was used for more miles than during the previous year. The 5-leaf spring has a shorter distance from the forward eye to where the forward end of the next leaf begins. This is where each of the previous springs had broken. This shorter distance seems empirically less apt to break upon hitting a bump or hole in the road, or at least that has been my experience. The 5-leaf spring does have a higher weight rating than the 4-leaf spring, but that is not the reason I purchased the 5-leaf spring. I do not expect the higher rating spring to increase the rated weight of my RV trailer. But I do believe that the shorter distance of the single top leaf section between the eye and where the second leaf starts is key to preventing repeat breaks. Using the 5-leaf instead of the 4-leaf springs did not cause any significant change in the height of the trailer above the axle, which could potentially affect the center of gravity of the trailer. I look forward to the 2- year anniversary hopeful that the springs will still be doing their job.


The 3000 lb. 5 leaf springs provide a smoother compression than the the factory 4 leaf springs.


I just wanted to let you know what a GREAT experience it has been ordering from your company. I have never had a company check up or keep me as informed on what was happening with my order. It is a great relief to know that there are still some companies that care and are not just interested in "a sale."

I have attached some pictures of the old springs I took off and the new one's. The old ones were stretched flat with my dump trailer empty. When I put the new ones on it even raised the trailer up at least 4 inches.


Good fit, good quality. Went on and fit just like the old one. Was put on a trailer to haul a skid steer.


Sales staff (Paula) were excellent in both answering questions and filling of my order. The springs are every thing expected and the free shipping (and fast) made it a great purchase.


i had a 7x14 trailer with (4 leaf ) 1750# rated leaf springs that went almost flat when i drove my polaris ranger crew onto my trailer... so i went up a load size on the tires to a D load rating and then i installed a ( 5 leaf ) leaf spring at 3000# rating and the trailer with the unit on it looks and rides a whole lot nicer now, there is actually some space between the top of the tire and the fender well.. WOW ... thanks etrailer for the recommendation..


The springs appear to be well made and fit my trailer perfectly. I upgraded from 5200 lb. 4-leaf springs to to these springs. I’m sure they’ll be more durable. Replacing the nylon bushings with brass bushings was very easy.


So far so good, but cant install due to missing spring shackles.

I will have customer service reach out to you.
-- Etrailer Expert Heather A - 11/29/2021


I really wanted to upgrade our springs and these were the perfect fit. A few other vendors said they were available, but shipping costs were huge. etrailer offered us alternatives (which I declined), was able to backorder the springs, and kept us informed as the vendor caught up on production. Glad we waited.

Show More Reviews

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

  • Typical Leaf Deflection for Trailer Leaf Spring
    Typical spring deflection for trailer leaf springs like the part # SP111275 is right at 1-1/2 inches when at capacity.
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  • What Factors to Consider when Picking Out a Leaf Spring when Adding an Axle to a Trailer
    A much easier way to determine what replacement leaf springs you should be using on your trailer would be to first determine what the total weight of your trailer will be and then pick springs that are confirmed to be able to handle that weight. For example the # SP-111275 that you referenced is designed for 6,000 lb axles. If your tandem trailer will weigh 12,000 lbs this would be a great choice for a spring. Trying to use the dimensions that you mentioned would be a tedious method that...
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  • SP-111275 Leaf Spring Weight
    The Leaf Spring part # SP-111275 that you referenced weighs right at 11-1/2 lbs. I attached a review video for this leaf spring for you to check out as well.
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  • How to Pick Out Replacement Leaf Springs for a R-Vision Trail Lite Crossover
    You gave me a lot of great information, but the last piece of the puzzle is the axle capacity of your trailer. With that I can tell you what spring would work best. Priority number one for picking out leaf springs is to go with the proper rated spring. I tried looking up your trailer info but could not determine the axle capacities. If you check the plate or plaque up near the coupler of your trailer you will see the axle ratings listed there. You will want to then check out the link I...
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  • How to Pick Out Replacement Leaf Springs on Boat Trailer
    In order to pick out replacement leaf springs for your trailer you will need to determine the axle's weight capacity and measure the length and width of your existing leaf spring stack. If the main info tag/plate is missing from the trailer and you can't find any identifiable info on the axle then your best route for verifying its capacity is by simply contacting the trailer manufacturer. Just have your VIN ready and they will be able to look up its exact specs. Once you have the capacity...
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  • Is it Okay to Tow a Trailer without Fenders
    I wouldn't worry about the trailer not having fenders. I've pulled a few enclosed trailers that were missing fenders and it didn't affect anything that I noticed. If you get a puddle or it starts raining the tires will fling water so it might not be as clean but you'd be fine.
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  • Upgrading Leaf Springs On a 5,200 Lb Axle for Increased Tire Clearance
    The 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles part # SP-111275 would be perfect for you as the extra capacity means the trailer won't sag as much and the extra leaf will give you more tire clearance. This spring also has a 25-1/4" eye to eye measurement so it will be an exact fit.
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  • Determining Which Leaf Spring Fits 2015 Grand Design 303RLS
    I would be happy to help you find the correct leaf spring for your 2015 Grand Design 303RLS, but unfortunately we do not have a breakdown of the specific components used on your trailer meaning you will need to measure your existing leaf springs, and you will also need to know the axle rating of your axle. To determine the axle rating you will need to look at the axle tag located on the center of the axle, as this will have the rating on it. If the tag is missing you can take the GVWR...
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  • Replacement Leaf Spring for Boat Trailer with 4k Axles
    You didn't list the length of your current leaf springs but based on the other dimensions you listed and your axle capacity our best option would be the leaf spring part # SP-111275 which is for a 6k axle and is 25-1/4 inches long. This will need to match what you have now in length.
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  • What is Minimum Trailer Tire to Fender Clearance
    Generally speaking you will want to have 3 inches minimum from the top of your tire to the fender of your trailer to accommodate for suspension travel. Having a little more wouldn't hurt, but I wouldn't recommend any less than 3 inches. Typical spring deflection is 1-1/2 inches. I attached a link to a page that has all of the fenders we offer as well.
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  • How to Figure Out Correct Replacement Leaf Springs for 2000 Keystone 2850RK Montana
    Most RV manufacturers don't keep a record of the original parts they use when it comes to suspension which is why it is a pain to figure out sometimes (as you have experienced). While I don't have a specific part number I can tell you will work, I definitely have some tips on how to choose the correct replacement leaf springs for your 2000 Keystone 2850RK Montana. The first thing to do is determine your axle weight capacity. From what I could find it looks like your GVWR (gross vehicle...
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  • Replacement Leaf Springs for 6k Axles on 2012 Heartland Big Country
    Going with the correct axle rating for the leaf spring replacements is the way to go. It's tempting to go with higher rated springs but you'll just give the trailer a harsher than needed ride quality. Since your stretched (they all stretch as they age) springs are 25-1/2 inches the correct 6k replacement would be the part # SP-111275 and you'd be set.
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  • When Should I Replace Leaf Springs On Trailer
    It is normal for the leaf springs to sag and elongate over time like your PR4 leaf spring has done. Since it's only a 1/5 of an inch it not anything to worry about yet as long as the ride quality is still smooth and the leaf spring is not rusted or cracked. Please keep in mind leaf springs should always be replaced in pairs to avoid different length springs and trailer tracking issues. I have attached a helpful leaf spring FAQ for your reference.
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  • Replacement Leaf Springs and Hangers Needed for a 2010 Keystone Montana 3400RL 5th Wheel
    I do have a way to help you figure out what you need, but we unfortunately don't have a database with those exact parts so we will have to go the old fashioned way of taking some measurements. From what I could find I believe that you have tandem 7,000 lb axles with double-eye leaf springs. If you can verify this as well as what your leaf springs measure from the center-eye to center-eye that will help us to identify that part of your suspension. When it comes to the hangers you're...
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  • Correct Replacement Leaf Springs for a Grand Design Reflection 303RLS
    The correct replacement leaf springs for a Grand Design Reflection 303RLS will be the 5-Leaf Double-Eye Spring part # SP-111275.
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  • Recommended 6K Leaf Spring 25-1/4 Long
    The 5-Leaf Double-Eye Spring part # SP-111275 is just what you looking for as it is for 6,000 lb axles and measures 25-1/4" long. It is the heaviest spring available in this length.
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  • How Tight Should Nuts that Hold Shackle Straps be When Installing New Leaf Springs
    The shackle bolts used between the springs and hangers do not require a specific torque rating because tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs, and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts, tighten them until they are snug, then back them off 1/4 turn. Lock nuts should be used because they resist loosening with vibration or torque.
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  • Leaf Springs Needed for 6,000 lbs Axles
    I have attached a link to our selection of leaf springs for 6,000 lbs trailer. You will just need to filter through them to find one that is the correct length and width of what you currently have. For example, the part # SP-111275 is 25-1/4" long, 1-3/4" wide, and is rated for the 6,000 lbs that you are looking for. To order 12 of them you simply need to change the quantity box to 12 before ordering.
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  • 6,000 lb Axle Leaf Spring Recommendation that is 25-1/4 inch Long
    What we have that matches what you listed the best is the leaf spring part # SP-111275 which is a 25-1/4 inch long spring for 6,000 lb axles like you need. Only difference is this is a 5 leaf spring and you said yours was a 4. Aside from that this would be the same and would still work great.
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  • How to Determine If Trailer Leaf Springs Have Been Overloaded
    On a leaf spring the metal band that wraps around the bundle of steel leaves is intended to remain in place after installation. If your trailer's leaf springs now have hose clamps installed around them this could indicate that at one time the springs were over-loaded and that band was forced off or broken. If when you remove those hose clamps the springs' leaves separate from each other then I suggest replacing all of the springs on the trailer. You always want to replace both springs...
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  • What is the Minimum Space Between Tires on a Tandem Axle Trailer
    I checked with Dexter, manufacturer of many trailer parts, and according to them there should be at least 1 inch of space between the tires when under load. So once your trailer is loaded and ready to tow, if you have more than 1 inch of space between the tires then going to the larger size would work. You also have to consider the additional width of the larger tire and the additional height. the new larger size will be 3.2 inches taller and 1.25 inches wider than your existing tire size....
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  • Recommended Replacement Leaf Springs for 2005 Keystone Raptor D3612 Fifth Wheel
    Trailer manufacturers typically don't list the specific leaf spring specs in their product information but I did call Keystone to see if they could provide the necessary details about your 2005 Raptor D3612 fifth wheel, such as axle capacity, spring length, etc. My contact there was not able to provide this. What you can do is check on the axle's safety sticker or I.D. plate for its rated capacity. You can also observe how many leaves there are in the springs. The other things you need...
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  • Spring Hanger Placement for Single-Axle Trailer Using 25-1/2-Inch Double Eye Springs
    The hanger spacing for a single-axle leaf spring setup will be slightly less than the distance between the leaf spring's two eyes. Please refer to the linked image to see how the spring and shackle are oriented in this type of setup. The shackle strap length has some effect on the spacing but for a spring with eye-to-eye spacing of 25-1/2-inches your two hanger holes should be approximately 25-inches to 25-1/4"-inches. Be sure to measure the spring when it is NOT installed and under tension.
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    Image 1 for
  • How to Measure a Leaf Spring To Find the Correct Replacement on a Trailer Axle
    There a few more measurements that are needed off of your current leaf springs to guarantee that you will find the correct replacement leaf spring. I have attach a diagram that will show the other measurements that are needed. You have the first measurement with the eye-to-eye distance. To find the correct replacement you will also need the spring height, measured from top of the center of the spring to the center of the eye. Also needed is the distance from the spring center to the center...
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