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-051275 | 13" | 14" | 26" | 4-1/4" |
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.
Average Customer Rating: 4.9 out of 5 stars (186 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.Nice springs for the dollar. No complaints! Would like to find some local spring manufacturer, as made in USA is important to me! 673063
Using etrailer.com has been a great experience. They have a huge selection of trailer parts and make it very easy to find the right parts. The packaging seems to have gotten alot better. Very sturdy box. It arrived within a few days from ordering which was a huge plus. I was able to get the job done sooner than planned. That kind of experience will keep me loyal to etrailer for any future trailer parts needs. Thanks guys and gals. Keep up the great work. As far as the parts, eveything was heavier duty than factory. Since I measured the old parts I was able to find the exact replacements for those parts. The job went so smoothly without any issues. These springs raised the trailer height without any load on the axles 1.5 inches. It was definitely time for new springs and hardware. Im kind of glad the one spring broke. 469464
These springs are much stronger than what I first ordered, thank you for sending my return tag, I measured wrong the first time. These springs with an inch shorter in length & an inch more arch work perfect & give the tires more room. Thanks again for the great service from all of your operators. I must say, even with shipping the experience & service was well worth it. 374448
Jerry k - 05/02/2018I replaced 3500lb axle springs with these 4000lb axle springs. Super easy. Good fits all the way around. Also suspension upgrade from Moryde, new Goodyear endurance on steel. Correct parts every time, faster delivery than anywhere. Too easy. Dont waste your time going anywhere else. 638015
Very quick shipping and notification all the way thru 905241
Everything came in a quick delivery and good tracking. 903209
As usual, the order was shipped and received quickly. Parts were the quality I expected and no issues on fit. Email communication was very good. Never had any issues on numerous orders in the past. 904735
No issues, fit as it should 901319
899642
Very fast. I could tract every step of the process with a name of who received, pulled, packaged, etc. order on a Friday and received on Monday 897786
great price 897656
Awesome product and price, highly recom mend. 897007
Great return policy 892608
884790
Product looks good it off box. As always very fast shipping and even bear their own timeline 889570
Lifted the trailer to the point when it was new! 873667
872226
Easy to install. Excellent and reasonably priced replacement for cheap factory springs. 871953
E=Trailer provides me excellent customer service. I mistakenly ordered the wrong size leaf springs. As soon as I realized my mistake, I called E-Trailer. I should have wrote the lady"s name who helped me. She really deserves recognition. She was so nice, courteous, and helpful. She sent me a U.P.S. label to save me postage. She instructed me what to do and how to return the leaf springs in the original packaging. She assisted me in ordering the correct part, which was received within days. I have already recommended E-Trailer to my neighbor and I am going to make future purchases to complete my project. 863668
862757
I had a broken spring on the road and had it replaced. I considered replacing only the other three. I decided to do all four to keep everything the same. I'm glad I did. I replaced the plastic bushings with the bronze ones and grease-able bolts that came with the pivot kit I bought. There were only pieces of the original bushes left in the old springs. I had not realized how over the years my trailer had sagged. Now it's like new again. NOTE** Make sure to press the bushings in, a bench vice works fine, and do not use a hammer. They are bronze, not steel, and can be ruined. ( Just some sound advice from a 68 year old professional). 858703
The spring replacement went well and was easy to complete. It lifted my trailer about 1.5 inches from the top the tire to the fender. It wont rub anymore!! 859056
very good quality of material 857089
1st class products and service!! 852344
Ordered was promptly received and shipped. Arrived when expected. Not damaged. All has been good. Will be ordering another set. I don't have any pictures at this time 850030
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