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  1. Trailer Leaf Springs
  2. etrailer
  3. 26-1/4 Inch Long
  4. Slipper Springs
  5. 4300 lbs
  6. 4 Leaf
etrailer Rust-Resistant 4-Leaf Slipper Spring for 4,300-lb Trailer Axles - 26-1/4" - Dacromet
etrailer

etrailer Rust-Resistant 4-Leaf Slipper Spring for 4,300-lb Trailer Axles - 26-1/4" - Dacromet

Part Number: e33SR
In Stock
$86.59
Trailer Leaf Springs
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Tired of rusty, flaking running gear on your trailer? Need more corrosion protection for launching your boat or towing over heavily treated roads? Upgrade your suspension with this long-lasting, supremely rust-resistant slipper leaf spring. Great Prices for the best trailer leaf springs from etrailer. etrailer Rust-Resistant 4-Leaf Slipper Spring for 4,300-lb Trailer Axles - 26-1/4" - Dacromet part number e33SR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer Trailer Leaf Springs - e33SR

Highlights

  • 4,300-lb Axle Capacity: Handles heavy loads confidently on single or tandem setups.
  • 26-1/4" Long x 1-3/4" Wide: Matches common slipper spring dimensions for easy fit-up.
  • Dacromet Finish Rated 700 Hours: Fights rust from saltwater and road spray for longer life.
  • 4-Leaf Slipper Design: Flexes to absorb bumps and reduce trailer shock.
  • 9/16" Eye with Nylon Bushing: Provides smooth pivot motion and quiet operation.
  • Steel Construction: Delivers reliable strength for high-mileage or marine use.

Features to know about

Stop Rust Before It Starts: Dacromet Coating Holds Up in Harsh Conditions

Corrosion doesn’t stand a chance with this 4-Leaf Slipper Spring. The Dacromet finish gives it serious protection against salt, water, and road chemicals with a salt spray rating of 700 hours at 5% salinity. It’s ideal for any setup that gets wet or runs in tough weather, keeping your suspension free from the flaking and rust that ruin most springs over time.

Close-up of etrailer Rust-Resistant 4-Leaf Slipper Spring with dacromet coating showing open-eye end and layered steel leaves for 4,300-lb trailer axles

Side-by-side comparison of a rust-free Dacromet-coated slipper spring and a severely rusted spring showing corrosion resistance performance

Strong, Smooth Support: 4-Leaf Pack Handles 4,300-lb Axles

Built tough for reliability, this spring supports up to 2,150 lbs per side for a total axle capacity of 4,300 lbs. The 4-leaf design flexes to soak up road shock while keeping the trailer steady and level. The result is less bounce and wear on your frame and cargo, so everything rides smoother mile after mile.

Easy Fit and Reliable Alignment: 26-1/4" Long, 1-3/4" Wide

Measuring correctly matters, and this spring makes it simple. It’s 26-1/4" from the center of the spring eye to the end of the slipper, 1-3/4" wide, and 3/8" thick at each leaf. A 9/16" nylon-bushed eye is ready for a matching bolt and hanger setup. The dimensions are consistent for a clean install that restores your suspension geometry and keeps your axles aligned.

Detailed photo of slipper spring parts showing open-eye end, leaf stack, and spring eye with nylon bushing for trailer suspension installation reference

Simple, Durable Construction: Steel with Nylon Bushing

The sturdy steel build gives dependable strength under load, while the included nylon bushing cuts friction and noise at the pivot point. The slipper end slides easily into the rear hanger or equalizer, keeping movement controlled without extra parts or fuss. Reliable, straightforward, and built to last—this spring just works.

Detailed image showing components of the etrailer slipper spring e33SR including open eye and slipper end for trailer suspension installation reference.

Specs

Quantity and Capacity

  • Quantity: 1 leaf spring
  • Spring capacity: 2,150 lbs
  • Axle capacity: 4,300 lbs

Dimensions

  • Length from center of spring eye to end of spring: 26-1/4"
  • Spring width: 1-3/4"
  • Eye diameter with bushing: 9/16"
  • Eye diameter without bushing: 1"
  • Leaf thickness: 3/8"
  • Number of leaves: 4

Additional Information

  • Additional dimensions: see table
  • Limited lifetime warranty

Technical diagram of etrailer Rust-Resistant 4-Leaf Slipper Spring showing labeled measurements A through F with corresponding inch dimensions for verifying trailer fitment

  • A: 13-1/8"
  • B: 26-1/2"
  • C: 26-1/4"
  • D: 13-3/4"
  • E: 14-1/8"
  • F: 3-1/2"

Part NumberABCDEF
e33SR13-1/8"26-1/2"26-1/4"13-3/4"14-1/8"3-1/2"

e33SR etrailer Slipper Dacromet Trailer Leaf Spring - 4 Leaf - 2,150-lb Capacity

Compares to SP-264275





Customer Satisfaction Score:

Ratings & Reviews

4.9

61 reviews
Review sort icon
Tired of rusty, flaking running gear on your trailer? Need more corrosion protection for launching your boat or towing over heavily treated roads? Upgrade your suspension with this long-lasting, supremely rust-resistant slipper leaf spring.

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Delivered on time, product looks great.



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Package arrived quickly. The springs were a perfect fit.



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Exactly what I ordered. Perfect



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Haven’t put them on yet but I’m extremely happy with them



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It was easy to order was notified when it shipped and was delivered on time.



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Eddie profile picture

Eddie

12/25/2024

The Anti Rust is Inadequate and not worth the extra cost. I rinse my trailer after every trip out, but found the coating does not hold up to Saltwater at all. They started to Rust within the first few time in and out of the boat ramp.



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Fantastic and Quick service! Thank you!



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Incredibly happy with this customer service team!!



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Excellent service, in-stock items, and prompt delivery.



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Product was very good good but only came with one bushing on the eye end. the open end of the leaf spring doesn't come with bushing. have to buy separate.



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Springs are good I guess. I bought the wrong size. They were to long. I usually only use trailer twice a year, once on way to riverat beginning of season and then back home at the end of season.



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We have used yall several times previously.100% satisfied all times. Good quality, good price and packaging is superb. We are sure to be calling on you again.



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Parts look very good. Haven't installed them yet. Ordering was easy and item shipped quickly. No problems at all.



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Quick shipping, quality product.



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I installed these on my 1999 boat trailer that had very rusted leaf springs. They are twice and strong and gave me an extra inch of clearance from my fenders which is great because the tires used to rub going over bumps. No idea if the coating will make them last longer, but they look nicer.



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Great set of leaf springs. Definitely looks well made



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Shipping was slow


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See what our Experts say about this etrailer Trailer Leaf Springs

  • New Brake Assemblies, Hub/Drums, Brake Lines, and Bearing Buddy for Trailer with 3,500 lb Axle
    For as trashed as those brake assemblies are I am impressed with how spotless that spindle is! Based on the bearing numbers you mentioned you have a #84 spindle and the hub part # AKHD-545-35-G-K is correct. Since this its galvanized it's a really great option as it will fight corrosion. The flexible brake line kits like the part # 18SI-BLKIT is what I would go with. They are just as durable as anything else and a lot easier to install. The brake assemblies # AKFBBRK-35R-D and # AKFBBRK-35L-D...
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    Image 1 for Image 2 for Image 3 for Image 4 for
  • Installation of Slipper Spring with Open Eye End
    Slipper Springs like # e33SR do not use a bolt and bushing for the open eye end of the spring. It connects directly to the hanger using a slipper spring hanger kit.
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  • Do Slipper Springs Use Bushings on Both Ends?
    Hey Mark. There is not a bushing on the hangers used on slipper spring trailers like item # e33SR. Smaller single axle trailers will have a bolt that runs through the hanger, some larger and tandem axle trailers will have a welded tube that the spring sits on, but there's no need to use a bushing. The etrailer item # e33SR is a 26-1/4" long, 2,150 lbs capacity spring, that works with axles up to a 4,300 lbs capacity. It has a Dacromet finish, which is great for rust resistance. What kind...
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  • Slipper Springs Are Falling Out Of Bracket - Should I Try Different Springs?
    Hey Keith, thanks for reaching out. If the slipper end of the spring is falling out of the bracket, it likely means the spring is either too long, or it is not rated high enough for the trailer weight. It could also mean the springs are worn out. When they get worn out, they will flex more than usual which could cause the problem you are describing. Replacing the springs with new ones should prevent this from happening. I'd also recommend making sure the spring is rated appropriately...
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  • How to Get Clearance for Slipper Spring Compressing on Top of Wheel Well
    To answer your first question a double-eye spring would not compress less than your current 4-Leaf Slipper Spring w/ Open Eye End # e33SR and I do not recommend going with a higher-rated spring than what your trailer is rated for as that will make your ride very stiff and unpleasant. The only real options you have to get more clearance are to raise the fender if you can or add one that has more height (I have linked our selection of fenders for you to check out) or to cut off your current...
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  • Replacement 26-1/2" Marine Grade Slipper Spring for a Boat Trailer
    Hey Derek, thanks for the information! Our 26-1/4" etrailer Rust-Resistant 4-Leaf Slipper Spring item # e33SR is going to be the closest option I have. This marine grade replacement slipper spring measures 26-1/4" and has a 2,150 lbs capacity. Our etrailer item # e33SR being rated for 2,150 lbs won't be overrated for your EZ Load boat trailer. It is sold individually and has 4-leafs. The Dacromet coating is going to provide great rust and corrosion resistance in fresh and salt water....
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  • Can a Single Axle Boat Trailer Be Switched From a Slipper Spring Suspension to Double Eye
    To switch to a Double Eye Spring # e48SR you would need to also change out your Rear Hanger # 30-20 since you will be adding Shackles # K71-358-00. This is required since the rear hanger has to be 1-3/4" wide on the outer versus at least 1-3/4" wide on the inner like you get with a Slipper Spring Hanger # CES83FR for a Slipper Spring # e33SR.
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  • Leaf Spring Replacement for 3,600 lb Boat that is 26 inches Long
    The best leaf spring for your application is the item # e27SR which matches the 26 inch length you need and has a 4,500 lb capacity. This would have just enough extra capacity that won't fail but also would still flex enough to cushion the ride quality.
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  • Is Bushing Required on Open Eye End of Slipper Spring
    A bushing is not required for the c-hook end (sometimes called an open eye end) of a slipper spring like the 4-Leaf Slipper Spring w/ Open Eye End # e33SR. The closed eye of this spring does have a bushing included; I have added a link to a video review of this spring for you to take a look at, as well as a link to a help article on slipper spring suspension for you to take a look at.
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  • Replacement Leaf Spring Recommendation for 26 Long Leaf Spring on 3,750 lb Axle
    The 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 26" Long # e48SR is a good replacement for your boat trailer as it meets all of the specs and is compatible with an axle that's just a little higher when it comes to weight rating. Please note that what you do to one side of the axle you need to do to the other so you'll need 2 of these leaf springs.
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  • Do You Have The Replacement Open Eye Leaf Springs and Hardware For a 2001 Load Rite Boat Trailer
    The only open eye 1-3/4" wide leaf springs we currently carry is the etrailer # e24SR & # e33SR. I have no way to verify the weight capacity for your current springs but as it is only a 2" square axle this spring is likely much heavier than you will need. We do have the U-Bolt Kit # CE23103 for your axle which includes 4 u-bolts, 2 plates and 8 washers and nuts. Then you will need 2 of the Hanger Bolts # TRFA73Z916DLNZ for the leaf springs.
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  • Do You Have a 5 Leaf Slipper Spring 26" Long for My 2007 EZ-Loader Boat Trailer?
    Hello Stan, What are your axles rated for on your 2007 ez-loader? The closest thing we have to what you are describing is the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long # e33SR. My main concern is that you said 26" and the one I mentioned is 26 1/4". Most of the time when you replace a leaf spring you need something that is shorter than the measurement you get as they do stretch over time. You want to make sure you are measuring the leaf spring unloaded,...
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  • Should Open Eye Slipper Spring Be Replaced When Flattened and Touching Frame
    Hi Alan; you definitely want to replace those leaf springs. If they have flattened out that means they're worn out and ready to be replaced anyway. Rubbing on the frame like that could also cause other problems. New springs will keep it from pushing up into there since they will have their arch back, pulling the open end down where it should be. Our open eye slipper spring selection only consists of the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long #...
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  • Recommended Replacement 26-1/4" Slipper Spring
    Thanks for the picture! I have something close to your 26" slipper springs. It is possible to switch to a two eye leaf spring or even go down to a four leaf spring with a higher capacity. If you wanted to switch it up to a two eye leaf spring I would need to know the distance from the center of the two bolts. You can email me back that measurement if you decide to make the change. The 26-1/4" Long 4-Leaf Slipper Spring w/ Open Eye End item # e33SR with a protective coating is the closest...
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    Image 1 for
  • How To Convert Trailer With Slipper Springs To Double Eye Springs
    I have a replacement option for you, but the only slipper spring we offer that is 1-3/4" wide and is 26-1/4" long is the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long # e33SR. Since you mentioned that you don't think the trailer has a very high axle rating this would not be a good option as if it is over rated it would cause a very harsh ride. To change over to double eye springs you would need to find the axle rating, and since you mentioned that you...
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  • Should a Nylon Bushing Be Used With the Open Eye End Of Slipper Spring # e33SR
    A Nylon Bushing # TRBU11561 is not required to be used on the open end of the 4-Leaf Slipper Spring # e33SR. Since the bushing is not going to be fully encased it stands that under the weight of the trailer it will fail and break apart more easily. I recommend spraying some LubeMaster Dry Silicone Spray # RM-747 on the open end bolt and contact areas of the spring. This will provide lubrication to the parts without attracting dirt.
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  • Is It Normal For Open Eye Spring To Hit Frame Of Trailer When Loaded?
    Thanks for the picture! The spring shouldn't hit the frame like yours does in the picture, so the correct solution would be to either add a longer front hanger or using a shorter spring. The correct replacement hanger will be dependent on the width of your spring. If you have a 1-3/4" wide spring the longest hanger we offer is the CE Smith Front Hanger Bracket for Trailer Slipper Springs # CE14016G which is 2-1/4" tall. If you can tell me the width of your current spring and the height...
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    Image 1 for Image 2 for
  • Does Slipper Spring EM98AJ Come With Nylon Bushing And Slipper End Bushing?
    Hey Brett. You won't need a bushing on the open of a slipper spring, but the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles - 26-1/4" Long # EM98AJ does indeed come with the built-in nylon bushing on the eye end, so you're all set! One thing to make sure is that you need this exact length, since they are very specific. This one measures 26-1/4" from center of one eye to center of the other eye, when unloaded. Also keep in mind, on a boat trailer it never hurts to spend...
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  • Bolts Needed To Install Slipper Springs
    For the spring eye you would use the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079, but slipper springs don't have the second spring eye, so a bolt is not used on the back end. You can also use a wet bolt like # 126B2, for less friction. The Shackle Bolt with Locknut for Double-Eye Springs - 3" Long # 166081 are for use with the spring and shackle straps used with a shackle straps on a tandem setup with an equalizer but it could be used for the springs and the...
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  • Can Slipper Spring Replace Existing Double Eye Leaf Spring
    You could replace a double-eye leaf spring with a slipper spring like the # e33SR spring you'd looked at, but it's recommended that you remove the existing rear hanger (assuming it's a single axle trailer) with a rear hanger like # 115706S as your existing rear hanger isn't designed for use with slipper springs. You'll also want to choose a spring with sufficient capacity to handle the weight of the boat and trailer. You can choose a higher rated spring than your existing one, but be aware...
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  • Which Way Do Slipper Springs Face on a Trailer
    With slipper springs you will want the eyes of the spring facing the front of the trailer and the open end facing the back. I attached a help article on slipper springs for you to check out as well.
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    Image 1 for
  • Should Trailer Leaf Springs Have Shackles on Front and Back
    Hey Richard, so yeah having shackles on the front and back of the leaf spring would be incorrect by normal standards and I think would potentially be dangerous as it would allow the axle to move forward and back independent of the trailer and would pretty easily cause sway. Since most likely the hangers are the same height and are at an odd spacing I would go ahead and replace the hangers and shackles with a kit like the part # APS4. I don't know your axle capacity though so to pick out...
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  • Replacing Slipper Springs on 1990 EZ Loader Boat Trailer With 3500 Axle
    As they wear, leaf springs tend to flatten out. The first step is to get the correct length of the existing springs. In order to do that, you'll need to put the trailer up on jack stands and measure them (center eye to center of the slipper) with the axle hanging free. I'd recommend getting that measurement, then getting back with me with the measurement you get. I honestly couldn't say what the original suspension of your boat trailer was, if you could reply with the VIN of the trailer,...
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  • Replacement 26 Slipper Spring for Sea Lion Trailer
    I believe you need the 4-Leaf Slipper Spring w/ Open Eye End for 4,300-lb Trailer Axles # e33SR which measures 26-1/4" from the center of the spring eye to the end of spring.
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Info for this part was:

Employee Lindsey S
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