9/16" Trailer U-bolt kit for 3" Tube 5200 - 7000 lb Axles

5.2K–7K Trailer Axle U-Bolt Kit – Fits 3" Round Axles | 9/16" Nuts | For 1-3/4" or 2" Springs

Description:

This trailer axle U-bolt kit is designed for securely mounting 1-3/4" or 2" wide leaf springs to a 3" round axle, making it a perfect fit for 5,200–7,000 lb axles. The kit includes 7-1/4" long U-bolts, heavy-duty mounting plates, and 9/16"-18 hex nuts. Whether you're building a new trailer or replacing worn components, this kit provides everything needed—except spring seats—for a secure and stable leaf spring setup.

✅ Specifications:

• U-Bolts (Qty: 4): 7-1/4" Long

• U-Bolt Plates (Qty: 2): Fits 1-3/4" or 2" springs

• Hex Nuts (Qty: 8): 9/16"-18 thread

• U-Bolt Dimensions:

  • Length (L): 7-1/4"

  • Width (A): 3"

  • Diameter (D): 9/16"

• Axle Compatibility: 3" round axle (typically for 5.2K–7K axles)

🛠️ Key Features:

• Complete Mounting Kit: Includes everything needed to attach leaf springs to the axle

• Heavy-Duty Fit: Ideal for high-load trailers and frequent use

• Broad Compatibility: Works with most 3" axles from Dexter, Rockwell, TK, and others

• Spring Seats Required: Not included—sold separately

• Trailer Ready: A great choice for trailer builders or service techs

🚚 Ideal For:

• Equipment trailers

• Gooseneck trailers

• Utility and landscape trailers

• Agricultural or farm-use trailers

• Commercial cargo haulers