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Top 7June 2025

Best Boat Trailer Leaf Springs 21 Inch

We made a list of the top 7 Boat Trailer Leaf Springs 21 Inch based on verified reviews, popularity and other factors which we summarized for you in this list.

Best Choice

Sturdy Built (2)- Boat Trailer 3 Leaf Double Eye Springs (1 Pair) 20'' 3700lbs Capacity Per Pair, Black (24001-2)

Sturdy Built (2)- Boat Trailer 3 Leaf Double Eye Springs (1 Pair) 20'' 3700lbs Capacity Per Pair, Black (24001-2)

✓Heavy Duty Trailer Leaf Spring
✓20" center eye to center eye
✓3 leaf spring rated at 1,850 lb's per spring (3,700 lb's per pair)
✓1 3/4" wide
✓9/16" inside diameter nylon bushing included

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Dorman 929-1072 Utility Trailer Leaf Spring, Eye/Loop, 1 3/4" Width, 26 1/4" Length, 3 1/2" Arch, 4 Leaf, 2250lb Capacity

Dorman 929-1072 Utility Trailer Leaf Spring, Eye/Loop, 1 3/4" Width, 26 1/4" Length, 3 1/2" Arch, 4 Leaf, 2250lb Capacity

✓Direct replacement - these leaf springs are designed to match the fit and function of the original leaf springs on specific vehicles or trailers
✓Ideal solution - seamlessly replaces leaf springs damaged by overloading, collision, cracking or corrosion, or are due for replacement
✓Durable construction - made from quality materials to strict specifications to ensure reliable performance and long service life
✓Trustworthy quality - engineered, manufactured and supported by the premier aftermarket leaf spring provider in the USA
✓Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

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Dorman 929-1002 Utility Trailer Leaf Spring, Eye/Eye, 1 3/4" Width, 20 1/2" Length, 3 3/8" Arch, 4 Leaf, 1400lb Capacity

Dorman 929-1002 Utility Trailer Leaf Spring, Eye/Eye, 1 3/4" Width, 20 1/2" Length, 3 3/8" Arch, 4 Leaf, 1400lb Capacity

✓Direct replacement - these leaf springs are designed to match the fit and function of the original leaf springs on specific vehicles or trailers
✓Ideal solution - seamlessly replaces leaf springs damaged by overloading, collision, cracking or corrosion, or are due for replacement
✓Durable construction - made from quality materials to strict specifications to ensure reliable performance and long service life
✓Trustworthy quality - engineered, manufactured and supported by the premier aftermarket leaf spring provider in the USA
✓Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

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Dorman 929-1031 Utility Trailer Leaf Spring, Eye/Eye, 1 3/4" Width, 26" Length, 4 1/4" Arch, 4 Leaf, 2000lb Capacity

Dorman 929-1031 Utility Trailer Leaf Spring, Eye/Eye, 1 3/4" Width, 26" Length, 4 1/4" Arch, 4 Leaf, 2000lb Capacity

✓Direct replacement - these leaf springs are designed to match the fit and function of the original leaf springs on specific vehicles or trailers
✓Ideal solution - seamlessly replaces leaf springs damaged by overloading, collision, cracking or corrosion, or are due for replacement
✓Durable construction - made from quality materials to strict specifications to ensure reliable performance and long service life
✓Trustworthy quality - engineered, manufactured and supported by the premier aftermarket leaf spring provider in the USA
✓Support available - every Dorman part is backed by Dorman's ASE Blue Seal Certified technical support team

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LIBRA 3500lb Tandem Trailer Axle Suspension Kit Leaf Springs U-Bolt & Hanger Kit

LIBRA 3500lb Tandem Trailer Axle Suspension Kit Leaf Springs U-Bolt & Hanger Kit

✓1,750lbs capacity per each spring, for standard 3,500lbs trailer axle,Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed
✓It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring)
✓Include 3,500lbs axle U-bolt kit for 2-3/8" dia round trailer axles , Kit include: 4 x 5-1/2" long U bolts, U bolts dia. 1/2"; 2 x tie plates for 1-3/4" leaf springs; 8 x 1/2"-20 hex nuts
✓Include Complete tandem trailer axle hanger kit for 1-3/4" leaf springs, Kit include: 2 x EQ-E1 equalizers, 6 x 3" tall hangers, 8 x shackle straps, 14 x 9/16"-18 x 3" long shackle bolts and locknuts
✓LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers.

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SEHNSUCHT Trailer Leaf Spring, 4 Leaf 1750lb Capacity Double Eye Leaf Springs for 3500lb Trailer Axle, 25-1/4"L, 1.75" Width, 3” Free Open of Leaf Spring, Replace for SW4B, 2 Pieces

SEHNSUCHT Trailer Leaf Spring, 4 Leaf 1750lb Capacity Double Eye Leaf Springs for 3500lb Trailer Axle, 25-1/4"L, 1.75" Width, 3” Free Open of Leaf Spring, Replace for SW4B, 2 Pieces

✓About The Springs: Each spring offer 1750lbs capacity, suit for standard 3000lbs trailer axle. Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, 2 Bushings Installed for Each Spring,Leaf Thickness 5/16.
✓About The Replacement: It will replace for SW4B. These leaf springs are designed to match the original leaf springs on specific vehicles or trailers.
✓About Material and Design: The Leaf Springs Made of Heavy Duty Carbon Steel for transmission stability and friction damping;Extra added anti-rust coating for corrosion resistance and long-lasting performance.
✓About The Use: seamlessly replaces leaf springs damaged by overloading, collision, cracking or corrosion, or are due for replacement.
✓After-sales service: Any questions after receiving, please contact us freely. Thanks for choosing us!

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Lippert Components - 125269 21" Leaf Spring Loaded Length - 1,400 lbs.

Lippert Components - 125269 21" Leaf Spring Loaded Length - 1,400 lbs.

Lippert Components

✓PRECISE REPLACEMENT — Designed as an exact-match replacement, this leaf spring ensures compatibility with your RV trailer suspension system. No more guesswork—get your rig back on the road with confidence
✓VARIETY OF LENGTHS — Available in 21", 24", and 26" lengths, this leaf spring accommodates different trailer setups. Whether you have a compact camper or a spacious RV, we’ve got you covered
✓WEIGHT CAPACITY OPTIONS — Choose from weight capacity options ranging from 1,000 to 4,000 lbs. Whether you’re hauling lightweight gear or heavy equipment, find the right leaf spring to support your load
✓ORIGINAL EQUIPMENT LABEL CONSULTATION — Before purchasing, consult your original equipment label. This ensures a seamless fit and optimal performance
✓LIPPERT QUALITY — As an industry leader, Lippert is committed to enhancing your outdoor adventures. Our leaf springs provide a smoother ride, so you can focus on enjoying the journey

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