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

  • Trailer U-bolt kit for 5200 - 7000 lb Axles (9/16"Diameter)

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

Frequently Bought Together

    Product Description


    • (4) 7 1/4" Long U-bolts  
    • (2) U-Bolt plates for 1-3/4" or 2" springs  
    • (8) 9/16"-18 Hex nuts   
    • L=7"   A=3"   D=9/16"

    If you have a new 3” round trailer axle, and you’re trying to mount your new leaf springs, then this U-bolt kit is the perfect choice. The kit comes with the U-bolts, plates, and hex nuts that you need to install your springs successfully, and we can help you find the appropriate spring seats to complete the installation. This kit is ideal for 5.2K to 7K trailer axles, and we’ll gladly answer any questions you have about it. If you’re building or repairing a trailer, then shop online with The Trailer Parts Outlet today. We look forward to helping you!


    • This kit has everything you need to mount your trailer's leaf springs to a 3" round axle
    • Spring seats required for mounting axle to leaf spring sold separately
    • Typically fits a 5200-7000lb axle

    Warranty Information

    1 Year Limited

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