Trailer U-Bolt Kit - 3" Round Axle - 9/16" Diameter - 7" Length - Raw Finish - 4201-HD

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Round trailer U-bolt kit part number 4201-hd.


  • A - Thread Diameter: 9/16"
  • B - Axle Tube Size: 3" Round
  • C - Inside Length: 7"
  • Spring Width: 1-3/4" to 2"
  • U-Bolt Finish: Raw
  • Application: 5,200 lb. to 7,000 lb. Axle


Trailer U-Bolts for round axles, our 4201-HD U-Bolts are available for any trailer spring or axle application. If your U-Bolt is not listed we can make you a set. U-bolts are designed to stretch when installing to aid in torque retention. Upon removal they retain the stretch, therefore we recommend you do not reuse old U-Bolts.

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