Best 6 Leaf Trailer Springs for Common Trailer Axles

Best 6 Leaf Trailer Springs

A strong six-leaf trailer spring should match your axle capacity, mounting style, and measured dimensions; the Southwest Wheel 251⁄4-Inch Double Eye suits buyers replacing a common SW6 setup. This roundup compares ten options, including pairs rated at 3,500 pounds per spring, four-packs, lower-capacity springs, and slipper designs for different suspensions. The products are not interchangeable simply because each has six leaves: eye-to-eye length, leaf width, bushing size, arch, and end style also matter.

Check your existing spring and trailer specifications before ordering, and compare per-spring capacity with the axle rating rather than assuming a set’s total capacity changes what each spring can carry. Use the comparison to narrow the field, then confirm the exact fit for your trailer.

The Southwest Wheel 251⁄4-Inch Double Eye is the leading choice for a standard SW6-style replacement: it is a two-pack of six-leaf springs, each rated for 3,500 pounds, with a 251⁄4-inch length and 13⁄4-inch width. Those dimensions and capacity match the common 7,000-pound axle configuration described by several products here. Choose another option if your trailer needs a different capacity, length, spring-end design, or package quantity, and verify the existing hardware before buying.

Our Top Picks

Southwest Wheel 251⁄4-Inch Double EyeBest Overall

Southwest Wheel 251⁄4-Inch Double Eye

This two-pack matches the common SW6 dimensions: six leaves, 251⁄4-inch length, 13⁄4-inch width, and 3,500-pound capacity per spring.

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LIBRA SW6 Double EyeFour-Spring Pack

LIBRA SW6 Double Eye

Each spring is rated at 3,500 pounds and measures 251⁄4 inches, while the PK4 package supplies four springs for a larger replacement job.

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Aeagle SW6 Double EyeCorrosion-Resistant Pick

Aeagle SW6 Double Eye

Its pair matches SW6 at 251⁄4 inches and 3,500 pounds per spring, and the listing specifies an electroplated rustproof coating.

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Compare These Six-Leaf Trailer Spring Options

#ProductWeightPackage DimensionsBuy
132 lb28 x 8 x 8 inView on Amazon
2
LIBRA SW6 Double Eye2. LIBRA SW6 Double EyeFour-Spring Pack
54 lb27.5 x 6.5 x 4 inView on Amazon
3
Aeagle SW6 Double Eye3. Aeagle SW6 Double EyeCorrosion-Resistant Pick
36.8 lb28.03 x 10.55 x 4.25 inView on Amazon
4
Youxmoto SW6 Double Eye4. Youxmoto SW6 Double EyeCoated 7000-Pound Axle Springs
38.2 lb—View on Amazon
5
Magorfas SW6 Double Eye5. Magorfas SW6 Double Eye7000-Pound Axle Replacements
38.7 lb28.5 x 10.25 x 4.5 inView on Amazon
6
SEHNSUCHT SW6 Double Eye6. SEHNSUCHT SW6 Double EyeDrop-In SW6 Replacement Seekers
75.8 lb28.5 x 10.5 x 6 inView on Amazon
780 lb27 x 8 x 5 inView on Amazon
8
Dorman 929-1041 Double Eye8. Dorman 929-1041 Double Eye3000-Pound Utility Trailer Repairs
21 lb—View on Amazon
9
Southwest Wheel 28-Inch Slipper9. Southwest Wheel 28-Inch SlipperUSA-Made Slipper Spring Applications
28 lb28 x 8 x 8 inView on Amazon
10152 lb32.28 x 8.66 x 6.69 inView on Amazon

Detailed Reviews: Best 6 Leaf Trailer Springs

Southwest Wheel 251⁄4-Inch Double Eye

#1 · Best Overall

1. Southwest Wheel 251⁄4-Inch Double Eye

  • Weight: 32 lb
  • Package Dimensions: 28 x 8 x 8 in

Best for: USA-Made Double-Eye SW6 Pairs.

Why it ranks #1: This two-pack matches the common SW6 dimensions: six leaves, 251⁄4-inch length, 13⁄4-inch width, and 3,500-pound capacity per spring.

This USA-made pair combines a 25-1/4-inch double-eye length with a 3,500-pound capacity per spring, targeting SW6-style replacement jobs. The six-leaf design and 1-3/4-inch width provide further points for matching existing hardware on trailers rated for 7,000-pound axles.

The two-spring package provides a matched replacement pair, while the listed SW6 reference and 25-1/4-inch length help buyers identify the intended double-eye pattern. Each spring carries a 3,500-pound rating, supporting the stated 7,000-pound axle application. Southwest Wheel also lists a corrosion-resistant coating and describes the steel springs as absorbing road shocks and reducing trailer sway, which may matter to owners weighing exposure and towing stability.

Pros
  • Two USA-made six-leaf springs
  • 3,500-pound capacity per spring for 7,000-pound axles
  • 25-1/4-inch double-eye length and 1-3/4-inch width
  • Corrosion-resistant coating stated
Cons
  • The listing does not state a bushing diameter for dimensional comparison.

Skip it if you require a listed 9/16-inch bushing diameter; LIBRA Trailer Leaf Spring 6 Leaf Double Eye specifies that measurement.

This pair suits owners replacing double-eye SW6 springs on a 7,000-pound axle who value USA-made construction and a stated corrosion-resistant coating. Check bushing and mounting measurements against the existing suspension.

Full product details
BrandSOUTHWEST WHEEL
Item Weight‎32 pounds
Item model number‎T2DE-SW6X2
Manufacturer‎SOUTHWEST WHEEL
Part Number‎T2USALEAFSPRINGSX2
Model‎Southwest Wheel USA Made Trailer Leaf Springs
Package Dimensions‎28 x 8 x 8 inches

Listed on Amazon as: 2-Pack USA Made 6 Leaf 25 1/4" 3,500 lbs Double Eye Trailer Leaf Spring

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LIBRA SW6 Double Eye

#2 · Four-Spring Pack

2. LIBRA SW6 Double Eye

  • Weight: 54 lb
  • Package Dimensions: 27.5 x 6.5 x 4 in

Best for: Four-Spring SW6 Replacement Sets.

Why it ranks #2: Each spring is rated at 3,500 pounds and measures 251⁄4 inches, while the PK4 package supplies four springs for a larger replacement job.

A four-spring package sets LIBRA apart for buyers replacing more than one pair of SW6-style springs. Each six-leaf double-eye spring is rated at 3,500 pounds for a standard 7,000-pound axle, with a 25-1/4-inch eye-to-eye length and 9/16-inch bushing diameter.

LIBRA lists compatibility with SW6, LIB-601-DE, UNA223, PR6, and 9150021 references, which can help buyers cross-check a replacement beyond the brand name. The specified 25-1/4-inch length, 3-inch free-open measurement, 1-3/4-inch width, and 9/16-inch bushing diameter provide concrete fit details. With four springs in the package, this set suits broader replacement work, while each spring’s 3,500-pound rating remains tied to the stated 7,000-pound axle application.

Pros
  • Four six-leaf double-eye springs in the package
  • 3,500-pound capacity per spring for 7,000-pound axles
  • 25-1/4-inch length and 9/16-inch bushing diameter specified
  • Lists several replacement references including SW6
Cons
  • A four-spring package may exceed the quantity needed for a single axle replacement.

Skip it if you only need a pair for one axle; SOUTHWEST WHEEL 2-Pack USA Made 6 Leaf 25 1/4" Double Eye supplies two springs.

Choose LIBRA for multi-spring replacement work when its SW6 references, dimensions, and 3,500-pound rating match the trailer. Buyers servicing only one axle should consider whether the four-spring package suits their needs.

Full product details
BrandLIBRA
Item Weight‎54 pounds
Manufacturer‎LIBRA
Part Number‎SW6
Package Dimensions‎27.5 x 6.5 x 4 inches

Listed on Amazon as: LIBRA Trailer Leaf Spring 6 Leaf Double Eye 3500lb Cap for 7000lb Axle PK4

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Aeagle SW6 Double Eye

#3 · Corrosion-Resistant Pick

3. Aeagle SW6 Double Eye

  • Weight: 36.8 lb
  • Package Dimensions: 28.03 x 10.55 x 4.25 in

Best for: Corrosion-Conscious SW6 Replacements.

Why it ranks #3: Its pair matches SW6 at 251⁄4 inches and 3,500 pounds per spring, and the listing specifies an electroplated rustproof coating.

An electroplated anti-rust coating gives the Aeagle springs a specific advantage for buyers concerned about corrosion in trailer service. The pair is rated at 3,500 pounds per spring for 7,000-pound trailers, and its 25-1/4-inch eye-to-eye measurement identifies the replacement size.

The six-leaf, 1-3/4-inch-wide construction and 60Si2Mn manganese steel are presented as supporting stable elasticity and shock absorption, which can help keep a trailer ride steady under load. Aeagle specifies 3,500 pounds per spring and a 7,000-pound axle application, alongside a 25-1/4-inch eye-to-eye length and 9/16-inch bushing diameter for replacement planning. Its electroplated coating is intended to resist rust, a useful consideration for springs exposed to weather.

Pros
  • Pair of six-leaf double-eye springs
  • 3,500-pound capacity per spring for 7,000-pound trailers
  • Electroplated rust-resistant coating
  • Lists 25-1/4-inch length and 9/16-inch bushing diameter
Cons
  • The listed axle application is 7,000 pounds, not the 8,000-pound axle rating of dreamdragon's slipper springs.

Skip it if you need a 4,000-pound-per-spring slipper spring for an 8,000-pound axle; dreamdragon 6-Leaf Slipper Trailer Leaf Spring Set specifies that capacity.

This pair suits buyers replacing SW6-style double-eye springs on a 7,000-pound trailer axle who value a stated rust-resistant finish. Its specified dimensions and axle rating remain the key boundaries for matching an existing suspension.

Full product details
BrandAeagle
Item Weight‎36.8 pounds
Manufacturer‎AEagle
Part Number‎AELS0015Q2
Package Dimensions‎28.03 x 10.55 x 4.25 inches

Listed on Amazon as: Aeagle 6 Leaf Double Eye for 7000 lbs Trailer Axle Spring, 25-1/4” Length, 3500 lbs Weight Capacity Per Spring, Replacement SW6, 2PCS

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Youxmoto SW6 Double Eye

#4

4. Youxmoto SW6 Double Eye

  • Weight: 38.2 lb

Best for: Coated 7000-Pound Axle Springs.

Why it ranks #4: The two springs are specified for SW6, with 251⁄4-inch eye-to-eye length, 13⁄4-inch width, and 3,500-pound capacity per spring.

An extra rust-proof coating is the Youxmoto pair’s clearest differentiator for trailer owners considering weather exposure. Each six-leaf double-eye spring is rated at 3,500 pounds, and the listed 25-1/4-inch length, 1-3/4-inch width, and SW6 fit target define its replacement application.

Youxmoto specifies a 3-inch free-open measurement and 9/16-inch bushing diameter in addition to the eye-to-eye length, giving buyers several points for comparing the pair with current SW6 hardware. The 3,500-pound rating per spring corresponds to a 7,000-pound trailer axle, while the six-leaf steel-plate construction is described as supporting stable transmission. Its extra rust-proof coating is intended to address harsh environments, though the listing gives no specific coating process.

Pros
  • Extra rust-proof coating stated for harsh environments
  • Six-leaf double-eye design
  • 3,500-pound capacity per spring for 7,000-pound trailers
  • Lists SW6 fit and key dimensions
Cons
  • The listing gives no specific coating process or corrosion-resistance measurement.

Skip it if you need an identified electroplated finish; Aeagle 6 Leaf Double Eye specifies electroplated paint and corrosion resistance.

This pair suits SW6 replacement buyers who prioritize an explicitly stated extra rust-proof coating and need a 3,500-pound-per-spring rating. Compare its listed dimensions with the trailer’s existing spring before installation.

Full product details
BrandYouxmoto
Item Weight‎38.2 pounds
Item model number‎LFLS0015-LYF
Manufacturer‎Youxmoto
Part Number‎LFLS0015-LYF
Model‎LFLS0015-LYF
Dimensions‎12.2 x 3.93 x 28.34 inches

Listed on Amazon as: Trailer Leaf Springs 3500lbs for 7000lbs Axle- 6 Leaves Double Eye, 25-1/4" L, 1-3/4" Width, Fits SW6; Heavy Duty Steel Plate Springs, 2pcs

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Magorfas SW6 Double Eye

#5

5. Magorfas SW6 Double Eye

  • Weight: 38.7 lb
  • Package Dimensions: 28.5 x 10.25 x 4.5 in

Best for: 7000-Pound Axle Replacements.

Why it ranks #5: This two-spring set lists 251⁄4-inch length and 3,500-pound capacity per spring for a 7,000-pound trailer axle.

A 3,500-pound rating per spring gives the Magorfas pair a clear job: supporting a trailer rated for a 7,000-pound axle. Its 25-1/4-inch double-eye length identifies the intended replacement size, while the six-leaf construction suits buyers seeking a six-leaf suspension spring set.

The set contains two six-leaf double-eye springs, so buyers replacing both sides have a matched pair rather than a single spring. The listed 3,500-pound capacity per spring corresponds to a 7,000-pound trailer axle, while the 25-1/4-inch length provides a key sizing reference for replacement planning. The listing also gives ratings for 3,500- and 5,000-pound trailers, at 1,750 and 2,500 pounds per spring respectively, helping distinguish those applications from the 7,000-pound axle rating.

Pros
  • Pair of six-leaf double-eye springs
  • 3,500-pound capacity per spring for 7,000-pound trailers
  • 25-1/4-inch length specified
  • Additional per-spring ratings listed for 3,500- and 5,000-pound trailers
Cons
  • The stated per-spring capacity tops out at 3,500 pounds for the 7,000-pound axle application.

Skip it if you need a stated anti-rust coating or detailed bushing dimensions; Aeagle 6 Leaf Double Eye lists both coating and bushing specifications.

For trailer owners replacing a pair on a 7,000-pound axle, this set offers a stated capacity and 25-1/4-inch length. Check those specifications against the existing suspension before choosing it for another axle rating.

Full product details
BrandMagorfas
Item Weight‎38.7 pounds
Manufacturer‎Magorfas
Part Number‎MFLS0015Q2
Package Dimensions‎28.5 x 10.25 x 4.5 inches

Listed on Amazon as: Trailer Leaf Spring 6 Leaf Double Eye 3500 lbs Cap for 7000 lbs Axle Suspension 25-1/4" Length fits for SW6 – Set 2

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SEHNSUCHT SW6 Double Eye

#6

6. SEHNSUCHT SW6 Double Eye

  • Weight: 75.8 lb
  • Package Dimensions: 28.5 x 10.5 x 6 in

Best for: Drop-In SW6 Replacement Seekers.

Why it ranks #6: The six-leaf pair is listed for a 7,000-pound axle, with 251⁄4-inch length, 13⁄4-inch width, and 3,500-pound capacity per spring.

A stated direct replacement for SW6 models makes the SEHNSUCHT six-leaf spring a focused choice for buyers seeking that replacement pattern. Each spring is rated at 3,500 pounds, with the pair intended for a 7,000-pound trailer axle and a 25-1/4-inch eye-to-eye length.

Its six leaves, 1-3/4-inch width, and 9/16-inch bushing diameter give buyers practical measurements for comparing the spring with existing SW6 hardware. The 25-1/4-inch eye-to-eye length and 3-inch free-open measurement further support replacement planning, while the stated 3,500-pound capacity per spring matches the listed 7,000-pound axle application. The listing describes carbon-steel construction, but does not provide a specific coating detail to weigh against corrosion-focused alternatives.

Pros
  • Direct replacement specified for SW6 models
  • 3,500-pound capacity per spring for 7,000-pound axles
  • Six leaves and 1-3/4-inch width
  • Lists 25-1/4-inch length and 9/16-inch bushing diameter
Cons
  • The listing does not specify a rust-resistant coating, unlike Youxmoto Trailer Leaf Springs.

Skip it if you want an explicitly stated extra rust-proof coating; Youxmoto Trailer Leaf Springs 3500lbs for 7000lbs Axle lists one.

For owners replacing SW6 springs on a 7,000-pound axle, this pair offers the specified capacity and dimensions for matching the original setup. Consider its stated measurements and coating details when choosing for exposed service.

Full product details
BrandSEHNSUCHT
Item Weight‎75.8 pounds
Manufacturer‎SEHNSUCHT
Part Number‎SCLS0016CK01
Package Dimensions‎28.5 x 10.5 x 6 inches

Listed on Amazon as: 6 Leaf Trailer Spring, 3500lb Cap for 7000lb Trailer Axle, 25-1/4"L, 1.75"W

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YOOZENA 24.88-Inch Double Eye

#7 · Lower Axle Capacity

7. YOOZENA 24.88-Inch Double Eye

  • Weight: 80 lb
  • Package Dimensions: 27 x 8 x 5 in

Best for: 5300-Pound Trailer Axle Replacements.

Why it ranks #7: Its four springs retain the six-leaf double-eye format but are rated at 2,650 pounds each for 5,300-pound trailers.

A 2,650-pound capacity per spring sets this YOOZENA four-pack apart from springs rated for 7,000-pound axles. Its 24.88-inch eye-to-eye length and six-leaf double-eye design target a specific smaller-capacity trailer application, with black bushings included at a 9/16-inch inner diameter.

The four-spring package supports buyers replacing several springs, while the stated 5,300-pound axle capacity defines its intended load category. Each spring measures 24.88 inches eye to eye and 1-3/4 inches wide, with a 3.38-inch free-open arch height and 9/16-inch inner-diameter nylon bushings. Those dimensions help with matching an existing suspension, but the listed capacity is lower than the 3,500-pound-per-spring SW6 options intended for 7,000-pound axles.

Pros
  • Four six-leaf double-eye springs included
  • 2,650-pound capacity per spring for 5,300-pound axles
  • 24.88-inch eye-to-eye length and 1-3/4-inch width specified
  • 9/16-inch inner-diameter nylon bushings included
Cons
  • Its 2,650-pound-per-spring rating is below the 3,500-pound SW6 rating for 7,000-pound axles.

Skip it if you need 3,500 pounds per spring for a 7,000-pound axle; Magorfas Trailer Leaf Spring 6 Leaf Double Eye lists that capacity.

This four-pack suits owners replacing six-leaf double-eye springs on a 5,300-pound trailer axle, provided the 24.88-inch length and other dimensions match. Its lower per-spring rating is the key limit for heavier applications.

Full product details
BrandYOOZENA
Item Weight‎80 pounds
Manufacturer‎M-Parts
Part Number‎SW6
Package Dimensions‎27 x 8 x 5 inches
Additional InformationImportant information

Listed on Amazon as: M-Parts SW6-6-Leaf 24.88" X 1-3/4" Double Eye Springs for 5,300 Lbs Trailers, 2,650 Lbs Capacity Per Spring 4 Pack

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Dorman 929-1041 Double Eye

#8

8. Dorman 929-1041 Double Eye

  • Weight: 21 lb

Best for: 3000-Pound Utility Trailer Repairs.

Why it ranks #8: This six-leaf eye-to-eye spring offers a distinct 27-inch length, 13⁄4-inch width, and 3,000-pound capacity for compatible applications.

A 27-inch eye-to-eye length and 3,000-pound capacity define the Dorman 929-1041 for buyers repairing a matching utility trailer suspension. Its six-leaf, eye-to-eye construction is described as a direct replacement for specific original springs, making application matching central to this choice.

Dorman describes this spring as a replacement for leaf springs damaged by overloading, collision, cracking, or corrosion, giving repair buyers a stated use case. The 27-inch length, 1-3/4-inch width, and 3-1/4-inch arch provide concrete dimensions for comparing it with an existing spring. Its six-leaf construction and 3,000-pound capacity further define the replacement; those specifications should guide selection rather than assuming it matches a 7,000-pound axle spring.

Pros
  • Six-leaf eye-to-eye construction
  • 3,000-pound capacity
  • 27-inch length and 1-3/4-inch width specified
  • Described as a direct replacement for specific applications
Cons
  • Its 3,000-pound capacity is below the 3,500-pound-per-spring rating of SW6 options.

Skip it if you need 3,500 pounds of capacity per spring for a 7,000-pound axle; Magorfas Trailer Leaf Spring 6 Leaf Double Eye lists that rating.

This Dorman spring fits repair buyers whose existing application calls for its 27-inch eye-to-eye length, 3,000-pound capacity, and 3-1/4-inch arch. It is not the higher-capacity SW6 replacement format.

Full product details
BrandDorman
Item Weight‎21 pounds
Item model number‎929-1041
Manufacturer‎Dorman Products
Part Number‎929-1041
Model‎Dorman 929-1041
Dimensions‎27 x 1.75 x 5.57 inches

Listed on Amazon as: Dorman 929-1041 Utility Trailer Leaf Spring, Eye/Eye, 1 3/4" Width, 27" Length, 3 1/4" Arch, 6 Leaf, 3000lb Capacity

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Southwest Wheel 28-Inch Slipper

#9

9. Southwest Wheel 28-Inch Slipper

  • Weight: 28 lb
  • Package Dimensions: 28 x 8 x 8 in

Best for: USA-Made Slipper Spring Applications.

Why it ranks #9: The six-leaf slipper design is rated at 4,300 pounds and measures 28 inches, making it relevant only where that end style fits.

A 4,300-pound rating and 28-inch length distinguish this USA-made six-leaf slipper spring for buyers replacing a matching heavy-duty setup. Its 2-inch width and slipper configuration differ from the 25-1/4-inch double-eye SW6 pattern, making the existing suspension style a key selection point.

The listing describes high-quality steel construction and a corrosion-resistant coating, which address durability and exposure to harsh weather. It also says the spring is intended to absorb road shocks and reduce trailer sway, linking its suspension role to towing stability. The 28-inch length, 2-inch width, six-leaf design, and 4,300-pound capacity are useful application checks, but this is a slipper spring rather than a double-eye replacement.

Pros
  • USA-made six-leaf slipper spring
  • 4,300-pound capacity
  • 28-inch length and 2-inch width specified
  • Corrosion-resistant coating stated
Cons
  • Its slipper configuration is not a double-eye replacement for SW6-style suspensions.

Skip it if you need a double-eye SW6 pair rated at 3,500 pounds per spring; SOUTHWEST WHEEL 2-Pack USA Made 6 Leaf 25 1/4" Double Eye lists that format.

For buyers replacing a matching slipper spring, this USA-made option combines a 4,300-pound rating with a corrosion-resistant coating. Its 28-inch length and 2-inch width remain essential checks against the trailer’s current setup.

Full product details
BrandSOUTHWEST WHEEL
Item Weight‎28 pounds
Item model number‎SH-E5115
Manufacturer‎SOUTHWEST WHEEL
Part Number‎T2USALEAFSPRINGS
Model‎Southwest Wheel USA Made Trailer Leaf Springs
Package Dimensions‎28 x 8 x 8 inches

Listed on Amazon as: USA Made 6 Leaf 28" 4,300 lbs Slipper Trailer Leaf Spring

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dreamdragon 291⁄2-Inch Slipper

#10 · Highest Capacity

10. dreamdragon 291⁄2-Inch Slipper

  • Weight: 152 lb
  • Package Dimensions: 32.28 x 8.66 x 6.69 in

Best for: Heavy-Axle Slipper Spring Buyers.

Why it ranks #10: Its six-leaf slipper spring carries the highest listed capacity at 4,000 pounds per spring, but its 291⁄2-inch design differs from SW6.

A 4,000-pound capacity per spring makes this dreamdragon slipper set the option here for an 8,000-pound axle application. Its six-leaf design uses a 29-1/2-inch free length measured from the eye center to the hook end, distinguishing it from the shorter double-eye replacements.

The slipper-style end and 3-1/2-inch free-open height are important fit references for buyers replacing a matching suspension setup; the specified 29-1/2-inch free length runs from the eye center to the hook end. Each spring is rated for 4,000 pounds, making the pair appropriate to the listed 8,000-pound axle application. A 2-inch leaf width and 9/16-inch bushing diameter provide additional measurements to compare with existing hardware before installation.

Pros
  • 4,000-pound capacity per spring
  • Specified for 8,000-pound trailer axles
  • Six-leaf slipper design
  • Lists 29-1/2-inch free length, 3-1/2-inch free-open height, and 2-inch width
Cons
  • The 29-1/2-inch slipper configuration is not the 25-1/4-inch double-eye style used by SW6 replacements.

Skip it if you need a 25-1/4-inch double-eye SW6 replacement; SOUTHWEST WHEEL 2-Pack USA Made 6 Leaf 25 1/4" Double Eye lists that style and length.

Choose this pair when replacing slipper springs on an 8,000-pound axle and the listed length, width, and bushing dimensions match the existing setup. Its 4,000-pound-per-spring rating and slipper format set its application apart.

Full product details
Branddreamdragon
Item Weight‎152 pounds
Item model number‎UNA161
Manufacturer‎Racing Auto Parts
Part Number‎UNA161
Model‎UNA161
Package Dimensions‎32.28 x 8.66 x 6.69 inches

Listed on Amazon as: dreamdragon 6-Leaf Slipper Trailer Leaf Spring Set – 4,000 lbs Capacity per Spring, Fits 8,000 lbs Axles (Pair of 2)

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Why a six-leaf spring can still be the wrong fit

A six-leaf count does not establish that a spring will fit your trailer; mounting style and dimensions can rule out an otherwise similar option. Most products here are double-eye designs, including the 251⁄4-inch SW6 options, while the Southwest Wheel 28-Inch Slipper and dreamdragon 291⁄2-Inch Slipper use a slipper end. The Dorman 929-1041 Double Eye is also longer than the common SW6 models at 27 inches, and the YOOZENA 24.88-Inch Double Eye is slightly shorter.

These differences are not interchangeable details: the spring must match the suspension’s hangers and attachment points. Measure the existing spring from eye center to eye center for double-eye models, and identify the end style before comparing lengths.

Also compare leaf width and bushing diameter when those details are available; the standard SW6 options list 13⁄4-inch leaves and 9/16-inch bushings.

Capacity ratings describe each spring, not the whole setup

Compare the stated capacity per spring with the trailer’s axle and suspension requirements rather than treating a pack’s total as its rating. The SW6-style pairs list 3,500 pounds per spring for a 7,000-pound axle, while the YOOZENA 24.88-Inch Double Eye lists 2,650 pounds per spring for a 5,300-pound trailer. Other six-leaf options have different figures: the Dorman 929-1041 Double Eye is rated at 3,000 pounds, the Southwest Wheel 28-Inch Slipper at 4,300 pounds, and the dreamdragon 291⁄2-Inch Slipper at 4,000 pounds.

A higher number alone does not make a spring suitable; its end design and dimensions must also match. Do not use the capacity of one spring as the capacity of an axle or trailer, and confirm the correct rating for your application from the trailer and suspension specifications.

How to Choose Six-Leaf Trailer Springs

Capacity and axle match

Look for a per-spring rating that matches the intended axle setup, not just a six-leaf count. The common SW6 options here are rated at 3,500 pounds per spring for 7,000-pound trailers; the YOOZENA 24.88-Inch Double Eye is rated at 2,650 pounds per spring for 5,300-pound trailers. The Dorman 929-1041 Double Eye lists 3,000 pounds, while the slipper designs list 4,000 or 4,300 pounds per spring.

Buyers replacing a standard 7,000-pound SW6 setup should focus on the 3,500-pound options. A 5,300-pound trailer owner may prefer the lower-rated YOOZENA if its dimensions fit, while higher-capacity choices suit only applications whose axle and suspension call for them.

Length, width, and bushing dimensions

Choose a spring whose measurements match your existing suspension, checking length, width, and bushing diameter where listed. Common SW6 models specify 251⁄4-inch eye-to-eye length, 13⁄4-inch leaf width, and 9/16-inch bushings. The YOOZENA 24.88-Inch Double Eye is shorter and lists a 3.38-inch free arch, while the Dorman 929-1041 Double Eye measures 27 inches long.

The slipper options list 28 inches and 291⁄2 inches, with 2-inch leaves on the Southwest Wheel 28-Inch Slipper and dreamdragon model. For an SW6 replacement, the 251⁄4-inch group is the closest match by listed dimensions.

Buyers with a different measured spring should compare that measurement to the alternatives rather than choosing by capacity alone.

Spring end style and package quantity

Match the spring’s attachment style and buy enough units for the work planned. Most entries are double-eye springs, while the Southwest Wheel 28-Inch Slipper and dreamdragon 291⁄2-Inch Slipper are slipper designs; those styles use different suspension interfaces. Package quantities also vary: many listings provide a pair, LIBRA is a PK4, and YOOZENA is a four-pack.

For replacing both sides of a typical axle, a two-pack may be the straightforward fit if all measurements match. Buyers servicing more than one axle can consider a four-pack, but should confirm the required number before ordering.

If your trailer uses slipper hangers, select a compatible slipper spring rather than a double-eye model, even if its capacity seems appropriate.

Which Six-Leaf Trailer Spring Should You Choose?

For a standard 7,000-pound axle using SW6-style double-eye springs, choose Southwest Wheel 251⁄4-Inch Double Eye: its pair is rated at 3,500 pounds per spring and matches the listed 251⁄4-inch, 13⁄4-inch SW6 dimensions. For a four-spring replacement using those same core dimensions and capacity, consider LIBRA SW6 Double Eye. Aeagle SW6 Double Eye is another close match and specifically lists an electroplated coating.

If your trailer is rated for 5,300 pounds, compare the YOOZENA 24.88-Inch Double Eye’s 2,650-pound rating and measurements against your existing setup. The Dorman 929-1041 Double Eye fits a different 27-inch, 3,000-pound application.

For slipper suspension, compare the Southwest Wheel 28-Inch Slipper and dreamdragon 291⁄2-Inch Slipper only after confirming their longer dimensions and end style fit.

Frequently Asked Questions

How do I measure a trailer leaf spring correctly when the old spring is worn or unloaded?

Measure eye-to-eye center distance, width, arch, leaf count, and end style, while noting whether the spring is loaded or unloaded. Wear can alter the spring’s shape, so compare measurements in the same condition when possible. Also check the trailer or axle specifications and confirm the mounting hardware before ordering.

Can I replace only one trailer leaf spring, or should I replace both sides?

Replacing both springs on the same axle is generally the safer choice because springs with different wear or condition can affect how the axle sits and carries load. If replacing only one, carefully inspect the other spring and confirm it matches the replacement in dimensions and capacity; consult a qualified trailer technician if unsure.

What other suspension parts should I inspect when replacing trailer leaf springs?

Inspect the hangers, shackles, bushings, mounting bolts, equalizer if fitted, and axle attachment hardware. Look for looseness, wear, damage, or corrosion, and confirm the replacement spring’s eye style matches the suspension. Replace worn or damaged related parts rather than installing a new spring onto compromised hardware.

How can I tell whether my trailer needs double-eye or slipper springs?

Check how the spring ends connect to the suspension. Double-eye springs have an eye at each end, while slipper springs use a sliding end that rests in a hanger or related mount. Match the existing design and verify the replacement’s length and mounting arrangement before buying; the two styles are not interchangeable by assumption.

How do I match a spring’s capacity to my trailer axle?

Check the axle rating and the spring’s stated capacity per spring, then confirm how many springs serve that axle. For example, the listed SW6-style options pair two springs rated at 3,500 pounds each with a 7,000-pound axle configuration. Verify the trailer’s existing setup and specifications rather than relying on the title alone.

Final Words

For a standard 7,000-pound axle with SW6-style double-eye springs, the Southwest Wheel 251⁄4-inch pair is the leading match: each spring is rated for 3,500 pounds and measures 13⁄4 inches wide. LIBRA is an option when replacing four springs with those core dimensions, while Aeagle also lists an electroplated coating. For other axle ratings, lengths, or slipper ends, verify dimensions, capacity, package quantity, and existing hardware before choosing.

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