26" Trailer Leaf Spring - Double Eye - 4 Leaves - AS-4

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Double eye trailer leaf spring part number AS-4.

  • Number of Leaves - 4
  • Leaf Spring Width - 1-3/4"
  • A - Spring Length: 14"
  • B - Spring Length: 14"
  • C - Spring Arch: 4-1/4"
  • D - Stack Height: 1"
  • E - Eye to Eye Length: 26"
  • Eye Diameter: 9/16"
  • Leaf Material: .250"
  • Leaf Spring Capacity: 1,000 lbs.


Double eye leaf spring AS-4 fits all types of trailers including utility, boat, travel, dump and horse trailers. This AS-4 double eye trailer spring with a 9/16" eye to eye measurement and has a 9/16" ID nylon bushings installed on both ends. Same as trailer spring part number UNA-124, 26-1000, UNA-021, 5015-4, UNA-156, DE261000. Measure along the surface of the leaf spring for the most accurate measurement. Eye to eye measurements can vary over time due to the trailer spring flattening out. Contact the experts at Spring Works if you have any questions.

Note: Replace AS-4 trailer leaf springs in pairs to avoid height, axle alignment, and performance issues.

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