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:
Specs:
| Part Number | A | B | C | D |
|---|---|---|---|---|
| SP-220275 | 12-5/8" | 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.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, we're going to take a look at the 3-Leaf Double-Eye Spring for 4,000 pound trailer axles. Now, this spring is designed to flex to absorb road shock, provide a nice smooth ride, help reduce wear and tear on your trailer. It'll ensure a nice, level ride on bumpy and uneven surfaces. Now, it does mount to your trailer frame with hangers in our hanger kit, which we do sell separately on our website. They are a lot of times listed on the product page as a related product. This does include the nylon bushings right here in the eyes.
Few specs on this, the spring capacity on this is 2,000 pounds. It is designed for axles of 4,000 pounds, so when this is matched with one on the other side, it would meet the 4,000 pound maximum. This is for a quantity of one spring. Again, it has 3 leafs, 1, 2, 3. I do want to give you some measurements on this, the spring length from the center of this eye to this eye is going to be right at 25 1/4 inches. The spring width, I'm going to turn this so I'll measure the width, is going to be right at 1 3/4 inches.
Then the diameter of the spring eyes is a 9/16 of an inch measurement. Now, one note I do want to mention that to ensure proper axle alignment and good suspension performance, you should replace your leaf spring always in pairs. That should do it for the review on the 3-Leaf Double-Eye Spring for 4,000 pound trailer axles.
Average Customer Rating: 4.9 out of 5 stars (120 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.My trailer is 25 yrs old and needed new springs, bolts, and shackles. These new items made my trailer much safer 717371
Love this place, Every time I order Its here faster than the estimated time and after 1st purchase they gave me expedited shipping for free. Life time customer now 596053
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
Parts went on without any issues... I replaced broken 4000lb. Springs, bolts, and new fenders. Redoing a trailer that had seen better days... Thanks to George and his team at trailer... 468549
William D - 01/21/2019I 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
I replace worn out 3500 lb springs with the 4000 lb springs from e-trailer. The description was perfect on the web site which made it easy for me to order the correct springs. These springs fit perfect as the install was flawless. 771162
Install/Replace was relatively easy. Sold trailer at end of season. 764095
Product arrived well packaged and in a timely fashion. The price and the quality were very good. 763758
Packaged well, delivery ahead of time, deducted one start as I expected the axles to be assembled with brakes bearings etc all complete not packaged separately adding hours to my initial estimate. 762513
Ordered replacement springs for boat trailer. Price was fair, shipping incredibly fast. I installed them today, perfect fit and back in business. Thanks. 757376
Springs were as claimed, install was easy and fast. Great improvement on the trailer customer service was excellent. Would recommend etrailer . Also installed towing mirrors were as easy to install and work and look great 746997
Great product and super fast shipping 746873
I'm So glad I found etrailer.com ! When the leaf spring broke on my lawn service trailer , I didn't know where to turn. etrailer.com Was very helpful and the Price was Great! I ordered them and They arrived Monday! I was very Impressed, what with it being the Holidays and all. My Husband was able to change them out and now greenie and I are back to work. Thank you for your Great service! 735137
Hopefully these will last longer than the last ones 724599
The springs fit great. The bushings for the MoRyde fit perfectly inside. Great Fit for my 2600RB 713795
After 1 leaf spring broke on our Grand Design 29RS we purchased 4 new ones to refit our 5th wheel. Much stronger than the original ones. Total install went very easy. Products looked great. Highly recommend 707784
I've had the new suspension on my trailer (20' flat bed) for about a year now with no problems, I tow a race car to about 20 to 25 events a year. All the parts fit perfect and are holding up good. Next on the list to do is a complete brake upgrade I will definitely get the parts from etrailer.com. 706959
Perfect replacement for my worn out 1750# springs on my utility/landscape trailer. Quick delivery and excellent customer service followup. 696127
Perfect fit and quality. I have ordered a lot of stuff from these guys and hands down best price,quality and shipping. I have recommended to a lot of my friends. 690449
appear to be quality springs - promptly shipped. Went on without a hitch as part of a complete tandem axle trailer overhaul. I had ordered these at the same time that I placed an inquiry about a previous order to another company regarding a brake kit - received these at my door before receiving an email response from the other company!! Later learning, after making a phone call to the other company, that my brake order was not in stock and would be 2-3 weeks for shipping. Decided to cancel other order and buy the brake kit from etrailer - received it within 4 days. Great customer service - will go straight to etrailer for all my replacement parts in the future. Lesson learned! 686583
The spring I originally ordered was back ordered by the manufacturer (3 months out). Called and spoke with Molly, she located an in stock spring with the correct specs and had it shipped out the same day! Fit like a glove. Install went much faster than expected (under an hour). High quality parts and customer service that’s second to none! etrailer is always my go-to source. 677165
GOOD SERVICE, FAST SHIPING! 673055
Leaf Springs were installed and fit per fect. 672222
just as the product was listed and very fast shipping, definitely the place to get all your trailer needs 658257
Purchased these springs in May 2018, installed them with no problems on a 27' travel trailer. Left the following month on a 7000 mile trip out west, performed flawless. Would definitely recommend. 641437
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