AEagle 4 Leaf 1750lb Double Eye Trailer Spring Kit - Reliable Load

In this review the AEagle 4 Leaf 1750lb capacity double eye spring kit is assessed for small trailers and DIY axle repairs. The bottom line: this pair of 1750 lb springs is best for owners who need a straightforward, economical replacement to restore a 3,500 lb trailer suspension, with the biggest reason to buy being clear: the kit provides matched eye-to-eye length and load capacity to replace worn springs quickly and get a trailer back on the road.

Key Features

• 1750 lb capacity per spring: Each spring is rated for 1750 lb so the pair supports the common 3,500 lb trailer application without overspecifying components.
• Exact eye-to-eye fit: The 25-1/4' eye-to-eye length and double eye design make these springs a direct, hassle-free swap for units listed as the equivalent part number.
• Complete bushing setup: Two 9/16' bushings are installed per spring so pivot points are ready to bolt in and reduce immediate hardware needs for basic installs.
• Anti-rust coating: The protective finish improves corrosion resistance for longer service life in exterior trailer use.
• Robust construction: Four leaves with 5/16' thickness and 1-3/4' width provide the stiffness and durability expected for trailers up to 3,500 lb.
• Backed by warranty: A 12-month warranty and pre-shipment testing offer added confidence for first-time buyers and fleet owners.

Who It's For

This kit is aimed at trailers and users who need to replace a pair of worn or damaged springs on a 3,500 lb axle setup, including small utility trailers, campers, and work trailers. It fits owners comfortable with hands-on installation or basic chassis work and those who need parts that match a commonly used spec and eye-to-eye length.

Owners who require perfectly symmetrical, premium-finished components or a kit that includes every possible mounting hardware piece should look elsewhere or plan to procure additional U-bolts and shackles; some customers reported missing or mismatched installation hardware during their installs.

Pros & Cons

Pros

• Good value: capacity and dimensions match common 3,500 lb trailer needs at a reasonable price.
• Ready bushings: two 9/16' bushings installed per spring speed up reassembly and reduce immediate extra purchases.
• Corrosion resistance: anti-rust coating helps the springs last longer in exterior conditions.
• Clear specifications: precise eye-to-eye length and leaf dimensions simplify part selection.

Cons

• Hardware gaps: some customers report missing or stripped mounting hardware, so buyers may need to supply or double-check U-bolts and shackle parts.
• Build consistency: a few users noted minor asymmetry between the two springs, which may require attention during installation.

Specifications

Replaces Part Number	SW4B equivalent
Quantity	2 springs per kit
Capacity per spring	1750 lb (pair supports 3,500 lb)
Eye-to-eye length	25-1/4 in
Free open	3 in
Leaf width / thickness	1-3/4 in wide, 5/16 in thick (4 leaves)
Bushing diameter	9/16 in (2 installed per spring)

Our Verdict

The AEagle 4 Leaf 1750 lb double eye spring kit is a practical replacement for most 3,500 lb trailer axles, offering correct dimensions, installed bushings, and corrosion protection at a sensible price. It is good value for owners who can supply or verify mounting hardware during installation and who want a straightforward way to restore trailer suspension capacity.

Frequently Asked Questions

Will this fit my 3,500 lb trailer?
Yes, the kit is rated at 1750 lb per spring and is intended as a matched pair to support a 3,500 lb trailer when dimensions match your existing springs.

Are bushings included?
Yes, two 9/16' bushings are installed in each spring so pivot points are ready for installation.

Does the kit include U-bolts and shackles?
The listing specifies springs and installed bushings; some customers reported missing hardware, so confirm or provide your own U-bolts and shackles for a complete installation.