26" Trailer Leaf Spring - Double Eye - 4 Leaves - AS-4
SKU: 19013490941

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

Sale price$39.56 Regular price$43.96
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

26" Trailer Leaf Spring - Double Eye - 4 Leaves - AS-4Number 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. Alternate SKU: UNA 124, US 1015, US1015, UDB26004, 26 1000, 261000, UNA 021, UNA021, UNA 156, UNA156, UNA124, AS4, 5015 4, 50154, LD26004F Double eye leaf spring AS 4 fits all types of trailers including utility, boat, travel,

  • 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.
  • Alternate SKU: UNA-124, US-1015, US1015, UDB26004, 26-1000, 261000, UNA-021, UNA021, UNA-156, UNA156, UNA124, AS4, 5015-4, 50154, LD26004F


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.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 19013490941

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4.3 ★★★★★
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jake
Omaha, US
★★★★★ 4
Excellent quatity cheap.
Color: Silver
Pervect fit. Heavy duty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
S
Verified Purchase
S. Brown
Grantham, US
★★★★★ 3
Very tight fit on 74mm Mobile 1 Filters
Color: Silver
It claims to fit "some" 74mm Mobil 1 filters. It's a fraction too small, but will work if you "force" the tool on the filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
S
Verified Purchase
Samuel James
Port Orchard, US
★★★★★ 5
It’s Mobile One. The Brand Says it All!
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
I buy Mobil One 0W-40 Full Synthetic European Blend Motor oil for my three older, higher mileage Mercedes SUVs. Considering all the vehicles are running well to this day speaks to the quality of their ongoing maintenance and Mobil One lubricants have always been part of their routine. Mobil One long ago became the favored brand of both European luxury car manufacturers and their customers. I’m no exception. The product comes in a convenient handled bottle that’s easy to pour without drips or spills. It’s built in fluid level gauge provides you with a real time window into the quantity of oil you pour and quantity remaining in its container. The oil is an excellent lubricant and it’s great for my motor, too. Price wise, it’s a premium offering from a premium brand. Even so, it’s worth every penny for helping keep my vehicles running as they were engineered. I have no complaints with Mobile One and I don’t have a reason to change. I’ll keep buying it until something better comes along.
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Reviewed in the United States on May 22, 2026
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Verified Purchase
TEX
Carnegie, US
★★★★★ 5
Perfect for MB
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
Mercedes certified - this oil is very nice, no need to drop loads on oil from MB or the other pricier brands, this stuff works very well.
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Reviewed in the United States on May 21, 2026
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Good
Draper, US
★★★★★ 5
Great Product and price.
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
Great product and price.
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Reviewed in the United States on May 14, 2026

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