29-3/4" Trailer Leaf Spring - Double Eye - 5 Leaves - UNA-036
SKU: 12240699512

29-3/4" Trailer Leaf Spring - Double Eye - 5 Leaves - UNA-036

Sale price$34.67 Regular price$38.52
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

29-3/4" Trailer Leaf Spring - Double Eye - 5 Leaves - UNA-036Number of Leaves 5 Leaf Spring Width 1 3 4" A Spring Length: 15 5 8" B Spring Length: 15 5 8" C Spring Arch: 4" D Stack Height: 1. 295" E Eye to Eye Length: 29 3 4" Eye Diameter: 9 16" Leaf Material: . 259" Leaf Spring Capacity: 1,250 lbs. Double eye leaf spring UNA 036 fits all types of trailers including utility, boat, travel, dump and horse trailers. This UNA 036 double eye trailer spring has a 9 16" ID nylon bushings installed on both ends. Same

  • Number of Leaves - 5
  • Leaf Spring Width - 1-3/4"
  • A - Spring Length: 15-5/8"
  • B - Spring Length: 15-5/8"
  • C - Spring Arch: 4"
  • D - Stack Height: 1.295"
  • E - Eye to Eye Length: 29-3/4"
  • Eye Diameter: 9/16"
  • Leaf Material: .259"
  • Leaf Spring Capacity: 1,250 lbs.

 

Double eye leaf spring UNA-036 fits all types of trailers including utility, boat, travel, dump and horse trailers. This UNA-036 double eye trailer spring has a 9/16" ID nylon bushings installed on both ends. Same as trailer spring part number UNA-224 and UNA-224, . 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 UNA-036 trailer leaf springs in pairs to avoid height, axle alignment, and performance issues.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 12240699512

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4.8 ★★★★★
Based on 702 reviews
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Only Rates Packaging
Port Orchard, US
★★★★★ 5
Pattern and roughness appropriate but still need to test
I haven't had a flat tire yet, so I also haven't had occasion to test these but they seem like great value for an extremely low price (especially versus a new tire.) I have handled them to try and gauge how quickly they'd smooth a hole, and they're rough / sharp and aggressive enough that I expect them to work quickly and well on not only tires, but on a variety of other materials. This pattern in particular should allow material to be shed and then passed backward pretty easily without clogging things up or slowing them down. If you've bothered to buy a patch kit for your tires, you really ought to have one of these around.
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Reviewed in the United States on January 18, 2026
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Verified Purchase
Don
Los Angeles, US
★★★★★ 5
Thank you!
Size: 1/4-Inch - With Adapter
Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2023
K
Verified Purchase
Ken C.
Alexandria, US
★★★★★ 5
Makes plugging easy
Size: 1/4-Inch - With Adapter
Screw that T handle punch tool!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2021
B
Verified Purchase
B Rukaz
Draper, US
★★★★★ 5
as advertised
As advertised
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Reviewed in the United States on June 2, 2026
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Verified Purchase
Drewski
Lowell, US
★★★★★ 5
Great value, easy to use, and do a great job.
Great for tire repair! It fits in any drill in a snap, so you are able to ream the hole out in a tire so you can patch and repair the tire. My shop used these all the time, and never had any issues with them. They hold up well, and do the trick for just about any size hole in a tire. Great buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026

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