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MAT

U-Bolt Kit – 9/16" - For 8K Axles | MT
SKU: 8UBKT916
$51.75 USD $51.75 USD
Shipping calculated at checkout.
In stock
Description

This 9/16" U-Bolt Kit is engineered to securely mount 3.5" round trailer axles rated at 8,000 lbs to 2" wide leaf springs. Ideal for heavy-duty trailers, this kit offers strength, stability, and ease of installation for both new builds and axle maintenance.

Detailed Information:
U-Bolt Diameter 9/16"
U-Bolt Length 8"
Axle Tube Size 3.5"
Spring Width 2"
Axle Capacity 8,000 lbs
Fitting:

Designed to fit 3.5" round axles with 2" wide leaf springs. Compatible with Dexter and other leading 8K axle manufacturers. Spring seats are required and sold separately.

Features:
  • Complete Kit: Includes 4 U-bolts, 2 U-bolt plates, and 8 hex nuts for a secure and complete installation.
  • Heavy-Duty Performance: Built from high-strength materials to handle the weight and stress of 8K axles.
  • Reliable Fit: Precision sizing ensures proper alignment between springs and axle.
  • Versatile Use: Ideal for heavy-duty trailers, car haulers, and equipment trailers.
  • Quick Installation: Pre-threaded components streamline your trailer build or repair process.
Interchangeable Part Numbers:
  • 08UBKT
  • MATAPUBR-35(GR5)
  • MATAPUBR-35
  • Dexter APUBR-35
Product Overview:

The U-Bolt Kit – 9/16" x 8" – For 3.5" Tube - For 8K Axles | MT offers a robust solution for mounting 3.5" trailer axles to 2" wide springs. This all-in-one kit ensures safe and secure axle suspension for high-load trailer applications. Whether you're building or repairing a trailer, this kit provides the durability and ease of use needed to get the job done right.

We want you to be completely satisfied with your purchase. That’s why we offer a hassle-free return policy within 30 days of delivery*. If your item is unused, in original packaging, and eligible for return, you can send it back for a refund or exchange.

*Some exclusions may apply

Some of our products are backed by a 1-year limited manufacturer warranty covering defects in materials and workmanship under normal use. If you experience any issues during this period, we’ll work with you to repair, replace, or resolve it according to warranty terms.*

*Proof of purchase required

Need it fast? We’ve got you covered. Orders confirmed before 3 PM Eastern Standard Time (Monday–Friday) are processed and shipped out the same business day. Orders placed after the cutoff will ship the next business day.
U-Bolt Kit – 9/16" - For 8K Axles | MT

Customer Reviews

Based on 12 reviews
83%
(10)
17%
(2)
0%
(0)
0%
(0)
0%
(0)
L
Leonerd Ovington
Excellent Product, No Compromises

I was impressed with the quality of this kit. Every piece felt solid and well-made. Securely mounted my new axle with no problems.

M
Marco Rossi
U-bolts were a bit long for my setup

Everything was great, but the U-bolts were slightly longer than I needed for my specific leaf spring configuration. Not a big deal, as I was able to trim them, but something to note for others. Still a very high-quality kit.

P
Peirce Franchyonok
Heavy-Duty Quality, Solid Components

These U-bolts are clearly made for heavy work. The material feels robust, and the plates are thick. I'm confident they'll hold up to the abuse of my car hauler. Great value for the price.

M
Michael Adams
Solid, but packaging could be better

The parts themselves are great, but the box was slightly damaged, and a couple of the nuts were loose. Everything was there, though, and it all worked perfectly.

P
Pattie Gratten
Exactly Right, No Surprises

Ordered these after a few disappointing experiences with other brands. The measurements were true, and the quality is excellent. They provide a very secure mount.

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