Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap - Heavy Duty Fit

In this review of the Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap, the bottom line is simple: this is a straightforward replacement spring for trailer owners who need a durable, correctly rated spring to restore ride height and load capacity. The reviewer found the kit useful for trailers built on SW5 axles and appreciates that each spring is rated for 3000 lb so a pair supports a 6000 lb axle. Professionals and DIYers who need a like-for-like swap will value the material quality and clear specifications.

Key Features

• 5-Leaf Construction: Provides layered strength and load distribution to support heavy trailer loads and resist sagging under weight.
• 25-1/4'in Eye-to-Eye Length: Matches common trailer mounting setups so the spring bolts up to SW5-compatible hangers without major modification.
• 3000 lb Capacity per Spring: Designed so a matched pair supports a 6000 lb axle, making it easy to confirm correct load rating for the trailer.
• 60Si2Mn Manganese Steel: Gives greater strength and flexibility compared with ordinary spring steel, improving longevity under repeated loads.
• Two-Coat Painted Surface: Adds corrosion resistance for trailers stored outdoors or used in wet environments, helping prevent premature rust.

Who It's For

This leaf spring is best for owners of small to medium trailers that use the SW5 fitment and need a direct replacement to restore ride height or towing stability. If your trailer is rated around 6000 lb per axle and you have springs that are cracked, corroded, or collapsed, this kit is a practical repair part.

It is not for automobiles, trucks, vans, tractors, or any non-trailer vehicle; the manufacturer warns explicitly that these springs were not engineered for road vehicles. Buyers who need higher capacity springs, bespoke suspension tuning, or fitment beyond SW5 should look for alternate parts.

Pros & Cons

Pros

• Sturdy 5-leaf design that restored trailer height and reduced bounce in real installations.
• Clear spec sheet including eye-to-eye length and bushing diameter makes matching to existing hangers straightforward.
• Good corrosion resistance from the two-coat paint and durable manganese steel construction.

Cons

• Hardware quality received mixed feedback, so expect to inspect or replace bolts and U-bolts if needed.
• Some users reported mixed experiences with assembly or fit tolerances, so minor adjustments may be required during installation.

Specifications

Leaves	5
Eye-to-eye length	25-1/4'in
Free open	3'in
Leaf width	1-3/4'in
Bushing diameter	9/16'in
Leaf thickness	5/16'in
Capacity per spring	3000 lb (fits 6000 lb axle)

Our Verdict

The Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap is a solid value for trailer owners who need a like-for-like replacement for SW5 fitment. It combines durable 60Si2Mn steel, clear sizing, and a protective finish to restore trailer ride height and load capacity, though buyers should check or upgrade hardware during installation.

Frequently Asked Questions

Will this fit my trailer?
These springs fit trailers using SW5 hangers when a 25-1/4'in eye-to-eye length and the listed bushing size match your setup; confirm load rating before purchase.

Can these be used on cars or trucks?
No, these springs are not designed for automobiles, trucks, vans, or tractors and should only be used on trailers as specified.

What materials and finish are used?
The springs are made from 60Si2Mn manganese steel and receive two coats of paint for corrosion resistance.