25.25" Double-Eye Leaf Spring 3000lb Capacity 4 Leaf- UNA221
25.25" Double-Eye Leaf Spring 3000lb Capacity 4 Leaf- UNA221
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Upgrade or replace your trailer suspension with this 25-1/4" Double-Eye Trailer Leaf Spring, designed for durability, smooth ride quality, and reliable load support. Built from high-quality spring steel, this leaf spring is engineered to handle demanding trailer applications while maintaining consistent suspension performance.
This spring features a double-eye design, one of the most common suspension setups used on cargo trailers and utility trailers. Double-eye springs allow the suspension to flex through shackle links and equalizers, creating a smoother ride and improved load distribution compared to slipper-style springs.
The spring measures 25-1/4" from center eye to center eye and is constructed with four tightly banded leaves, providing a 3,000 lb capacity per spring (6,000 lb per axle) when used in a pair. Each spring includes 9/16" nylon bushings pre-installed in both eyes, allowing for straightforward installation and reduced friction.
This leaf spring is commonly used on Dexter 6,000 lb trailer axles, making it a dependable replacement for worn or flattened springs.
Key Features
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3,000 lb Capacity Per Spring – Supports 6,000 lb axle setups when used in pairs
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Double-Eye Suspension Design – Provides smoother ride and improved suspension articulation
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25-1/4" Eye-to-Eye Length – Standard replacement size for many trailers
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Four-Leaf Steel Construction – Strong and durable for demanding towing conditions
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Pre-Installed Nylon Bushings – Reduces friction and simplifies installation
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High-Quality Spring Steel – Built for long service life and consistent performance
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Compatible with Dexter Axles – Replaces common spring part numbers
Specifications
| Specification | Details |
|---|---|
| Product Name | Double-Eye Trailer Leaf Spring |
| Brand | Universal Group / Dexter Compatible |
| Universal Part Number | UNA-221 |
| Dexter Part Number | 7226 |
| Capacity | 3,000 lbs per spring |
| Axle Capacity (Pair) | 6,000 lbs |
| Spring Length | 25-1/4 in (eye to eye) |
| Spring Width | 1-3/4 in |
| Number of Leaves | 4 |
| Eye Bushing | 9/16 in Nylon |
| Material | High Strength Spring Steel |
| Suspension Type | Double-Eye |
| Quantity | Sold Individually |
Typical Dimensions
| Measurement | Size |
|---|---|
| Eye to Eye Length | 25-1/4 in |
| Spring Width | 1-3/4 in |
| Bushing Diameter | 9/16 in |
| Leaf Count | 4 |
| Capacity | 3,000 lbs per spring |
Note:
Older trailer springs may appear longer due to stretching or flattening from years of use. Always measure center of eye to center of eye when selecting replacements.
Manufacturer Cross Reference
| Manufacturer | Part Number |
|---|---|
| Universal Group | UNA-221 |
| Dexter | 072-026-00 / 7226 |
| Industry Reference | 850-0221 |
Common Applications
This spring is commonly used on:
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Cargo trailers
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Utility trailers
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Equipment trailers
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Landscape trailers
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Enclosed trailers
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Tandem axle trailers using 6,000 lb axles
It is frequently installed on Dexter 6K axle suspension systems.
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