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Heavy-Duty Trailer U-Bolt Kit for 5,200–7,000 lb 3" Axles 1/2"-20 thread


Regular price $28.99
Shipping calculated at checkout.

Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

Product description: 

This heavy duty U-bolt kit is engineered to securely mount 3" round trailer axles rated from 5,200 lbs to 7,000 lbs, making it an ideal solution for utility trailers, flatbeds, equipment haulers, and other heavy duty applications. Designed for a precise, wobble-free hit, it helps maintain proper suspension alignment for safer, more stable towing. 

Built from heat treated Grade 2 steel with clean cut threads, this kit delivers long-lasting strength, durability, and corrosion resistance, perfect for upgrades, replacements, or new trailer builds. Each kit covers one axle and installs quickly with no extra parts or tool required. With all mounting hardware included in the box, this complete U-bolt mounting solution saves time while providing dependable performance and reliability you can trust on the road. 

What's Include: (1 kit)

(4) U-bolts – 7" long with 1/2"-20 thread
(2) five-hole U-bolt tie plates – fit 1-3/4" or 2" wide leaf springs
(8) 1/2"-20 hex nuts – heavy-duty, easy to torque

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