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Dexter Single Axle Standard Duty Suspension Kit - Double Eye Springs
(163 reviews)
Price: $26.94
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Dexter Single Axle Standard Duty Suspension Kit - Double Eye Springs
Part Number: K71-403-00
In Stock
$26.94
Retail:$47.10
You Save: 43%
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- All Info
- Reviews (163)
- Q & A (0)
- Videos (2)
- Photos
Dexter Trailer Suspension Parts - K71-403-00
Highlights
- 9/16" Bolt Diameter: Matches standard double-eye spring eyes for a proper fit.
- 3/8" Thick Shackles: Helps maintain a secure connection and reduce unwanted flex.
- 3-1/8" Shackle Length (center to center): Keeps leaf spring geometry correct for stable towing.
- Zinc-Plated Hardware: Resists rust and corrosion, ideal for marine or wet conditions.
- Includes Bolts, Shackles & Nuts: Provides the key parts to refresh one single-axle setup.
- Works with 1-3/4" Wide Springs: Fits the common width used on many trailer suspensions.
Features to know about
Solid Connection for Steady Suspension: Built for 1-3/4"" Wide Double Eye Springs
Keeping your trailer’s suspension tight and aligned starts with the right hardware. This single axle heavy duty suspension kit is made for 1-3/4"" wide double eye springs and includes everything you need to mount them securely—2 shackle links, 2 shackle link assemblies, 6 flange nuts, and 2 shoulder bolts. The 9/16"" diameter bolts and 3/8"" thick shackles hold firm under load so your trailer tracks straight and rides stable.
Protection That Lasts: Fully Zinc-Plated Components
Rust and corrosion can take out suspension parts fast, especially around water or road salt. Every piece in this Dexter kit is zinc plated, so it stands up to moisture, grime, and weather without seizing or breaking down. It’s the kind of protection that makes a big difference if you’re hauling through wet or coastal areas.
Simple, Direct Fit Hardware: Correct Sizes Where It Counts
Getting the right fit keeps the job simple. The shackle length measures 3-1/8"" from hole center to hole center, and the bolt length is 2-7/8"" with a 9/16"" stepped section and 7/16"" threaded portion. The nuts tighten down to the shoulder of the bolt for a snug, free-moving connection that doesn’t pinch the spring. Everything lines up cleanly for a solid install that’s ready to roll.
Reliable Setup for Single or Multi-Axle Use
This is a standard duty single axle kit, but it can also be used on tandem setups by adding additional kits. That flexibility makes it a handy solution for a wide range of trailer builds where consistent suspension performance matters.
Specs
Compatibility
- Designed for: 1-3/4"" wide, double eye leaf springs
- Axle type: Single axle
Included Components
- 2 Shackle links: (018-012-01)
- 2 Shackle link assemblies: (018-021-00)
- 7/16""-20 Flange nuts (Qty 6): (006-092-01)
- 2 Shoulder bolts: (007-126-00)
Bolts
- Bolt diameter: 9/16""
- Threaded portion diameter: 7/16""
- Bolt length: 2-7/8""
- 9/16"" portion length: 2-1/4""
Shackles
- Shackle link thickness: 3/8""
- Shackle length (hole center to hole center): 3-1/8""
Finish
- Plating: Zinc plated components
Country of Origin
- Made in: USA
K71-403-00 Dexter Single Axle Standard Duty Suspension Kit - Double Eye Springs
Compares to A/P-122-00
Video of Dexter Single Axle Standard Duty Suspension Kit - Double Eye Springs
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Feature Review Dexter Single Axle Heavy Duty Suspension Kit
Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at the Dexter Single Axle Heavy Duty Suspension Kit for Double Eye Springs. Now, this single axle suspension kit is for 1 3/4-inch-wide double eye springs. These parts here will allow you to connect your double eye leaf springs to your trailer hangers, and the kit will include everything shown here on the table. It comes with the two shackle link assemblies, the two shackle links, two shoulder bolts, and then the six 7/16 by 20 size flange nuts.
These parts are made in the USA. But that should do it for the review on the Dexter Single Axle Heavy Duty Suspension Kit for Double Eye Springs.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Product did not meet expectations
- Wrong item was ordered
- etrailer mistake
Ratings & Reviews
4.7
163 reviews
by:
Erin
09/18/2026
Nice galvanized hardware with thick plates and locking nuts. Fit perfectly.
by:
Mike rebuilds a trailer
08/18/2026
Perfect fit, quick shipping. etrailer rocks!!
by:
Wally
09/03/2026
Fit the leaf springs on my cargo trailer perfect.
by:
David
06/19/2026
Awesome equipment. Always satisfied with ETrailer equip and customer service.
by:
Chad
06/15/2022
Replaced both leaf springs, hangers, and shocks on a Dexter 3500lb axle. Entire process took just over an hour.
by:
Jamie
08/12/2026
I had one of the new bolts step out on me when I was tightening them up. Other than that all else was good.
by:
Jeff
06/11/2026
Excellent service parts
by:
Joel
09/16/2026
Stout for a good price!
by:
David
03/25/2026
Very nice shackles
by:
Not Happy.
08/05/2025
These don't fit. The bolt is too short. When I called to ask about install the tech could not even tell me if these mount on the inside or outside of the trailer mounting bracket. He told me to call the manufacturer. I regret buying from etrailer and I regret even starting this project.
by:
Jeff
06/04/2026
Works just fine after a years use.
by:
Adam
06/29/2026
Description said the straps were 3/8” thick but they are only 1/4”.
by:
Kyle
06/11/2026
Great product
by:
Thurman
06/20/2025
If you order from E Trailer chances are your order will be wrong, I can’t understand why it’s so difficult. I just wanted 3 1/2” shackles and got 4 1/2 kits which I also did not want because I already had the nuts and bolts. The last time I ordered from E Trailer after following their own specs the order didn’t work and no refund. This is the last time I will ever be shopping with them again. It’s all about selling and not about customer satisfaction.
by:
Dustin
04/05/2026
The website pictures don’t show just how beefy these are. Very impressed with the quality
by:
Patrick
06/30/2026
As expected
by:
Paul
02/06/2026
Hannah I am so glad you want feed back. The product I received is not as described .The shackle bars are not a 1 1/2 inches wide as indicated in the product images. Actual width is 1 1/4. why is this item spelled out as heavy duty. Further more the nut body is too short. Almost like a jam nut. Not good for the amount of torque you need to put on them. I could of bought this at my local store but thought I was getting something. superior, not the case. Disappointed in your misleading info. If you respond I will be happy to send you more photos. Paul
by:
Gerald
04/05/2026
Perfect fit, great quality!
by:
Robert
04/01/2026
Had the part When I needed it
by:
Steven
11/17/2025
Great job Amy and crew exactly what I ordered trailer crew is on there game!
by:
JT
07/09/2023
Much heavier duty than the originals. Definitely an improvement. Helpful to use a C clamp to hold pieces in place while tightening nuts but keeping prices centered in holes.
by:
Mnguy
07/14/2025
Very stout! Easy install! Super fast shipping
by:
Eric
12/09/2025
Great quality but parts weren't a good fit bolts were to thick and drop hangers were too long.
by:
Thomas
11/02/2019
The customer service was outstanding. Thru the process of identifying what I needed to ordering and delivering the products I dealt with multiple Customer Service Representatives (CSR). Everyone of them were helpful and courteous. I really appreciated the follow up after my initial contact with CSR. Once the product was ordered I was kept up to date on the status of the order thru regular emails from an etrailer CSR. The parts arrived as they promised, and a CSR even followed up with me after that. Great service, keep it up!
by:
Daniel
08/18/2023
Trailer Doesn't Have broken springs anymore. Fun stuff! Good product, fit properly, no complaints.
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- Bolt Diameter of Dexter Single Axle Heavy Duty Suspension KitThe bolts in the Dexter Single Axle Heavy Duty Suspension Kit # K71-403-00 are 9/16" diameter like you need. This kit is designed for and will work with your 1-3/4" wide, double eye leaf springs. I have added a link to a video review for you to check out as well of the Dexter Single Axle Heavy Duty Suspension Kit # K71-403-00.
view full answer... - Parts Needed To Replace Slipper Spring With Double Eye Leaf Springs On a 2002 Coleman Mesa 3651As we will not have a slipper spring that fits your 2002 Coleman Mesa 3651 I recommend upgrading to a double eye leaf spring system. You will only need to change your Rear Hanger # 93003-3X on each side to be able to install 2 of the 4-Leaf Double-Eye Springs # e54SR. The Dexter Single Axle Heavy Duty Suspension Kit # K71-403-00 will give you the necessary new hardware to mount the springs to the frame. I recommend upgrading to the Wet Bolt Kit # K71-358-00 to cut down on noise and provide...
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Do you have a question about this Trailer Suspension Part?
Info for this part was:
Edited by:
Lindsey S
Installed by:
Jeff D
Installed by:
David F
Expert Research:
Jameson C
Video Edited:
Chris R
Updated by:
Wilson B
Video by:
Jonathan Y
Written by:
Mike S
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Lazer S.
2/10/2026
Sorry to hear this isn't living up to expectations, Paul. I double checked and you are correct about the width. It is 1-1/4" and I will have that updated. I will see if I can get the heavy duty part removed as well. The heavy duty kits have much thicker shackles than this does. One thing I do need to point out though, you should not be torquing the nuts down. They need to be tight, but you have to have enough room for everything to move unimpeded. This is why I always say to use Loctite on those nuts.
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