One 7 Leaf Trailer Slipper Spring – 2" x 26.25" – 4,000 lb Capacity
Seven-leaf trailer slipper spring for suspension systems using slipper-style hangers or equalizers. Measures 26-1/8" long by 2" wide with a 4,000 lb spring capacity.
Key Measurements & Specs
| Specification | Detail |
|---|---|
| Part Number / SKU | 1403T3 |
| Product Type | Slipper leaf spring |
| Number of Leaves | 7 |
| Spring Width | 2" |
| Overall Length | 26-1/8" |
| Spring Capacity | 4,000 lbs |
| Quantity Included | 1 slipper spring |
Fitment / Application
| Category | Details |
|---|---|
| System Type | Trailer slipper spring suspension |
| Typical Axle Rating | Commonly used on 8,000 lb trailer axle applications |
| Fitment Method | Match by spring length, width, eye diameter, arch, slipper-end style, and hanger/equalizer configuration |
| Important Note | Verify measurements before ordering. Leaf springs should generally be replaced in pairs for balanced suspension performance. |
Top Features
| Feature | Buyer Benefit |
|---|---|
| Seven-Leaf Construction | Built for trailer suspension support under loaded conditions |
| 4,000 lb Capacity | Supports one side of a typical 8,000 lb axle suspension setup when properly matched |
| 2" Spring Width | Matches common heavy-duty slipper spring hanger and equalizer systems |
| Nylon Eye Bushing | Comes with an installed eye bushing for the spring eye mounting point |
Overview
This 1403T3 seven-leaf slipper spring is designed for trailer suspension systems that use slipper-style hangers or equalizers. With a 26-1/8" overall length, 2" spring width, 9/16" eye diameter, and 4,000 lb spring capacity, it is commonly matched to heavy-duty trailer suspension applications using 8,000 lb axles.
R&P Service Insight
Leaf springs are wear items in trailer suspension systems. Repeated loading, road shock, corrosion, and uneven weight distribution can reduce spring arch and cause the trailer to sit low or ride unevenly.
- Measure First: Confirm spring length, width, eye size, and slipper-end configuration before ordering.
- Replace in Pairs: Replacing only one spring can leave the suspension uneven if the opposite spring is worn.
- Inspect Hardware: Check hangers, equalizers, bolts, bushings, and U-bolts during spring replacement.
R&P Knowledge Hub
Compatibility: Best matched by part number, spring length, spring width, eye diameter, slipper-end style, and hanger/equalizer layout.
Vehicle / System Fit: Trailer slipper spring suspension systems using a 2" wide, 26-1/8" slipper spring with 4,000 lb spring capacity.
Installation Notes: Support the trailer safely, unload the suspension, and inspect related suspension components before installing new springs.
Performance Insight: Properly matched springs help restore trailer ride height, suspension travel, and balanced load support across the axle.
Brand & Fitment Note
Selling Brand: R&P Carriages / Need A Trailer Part suspension component listing.
Application Reference: Axle rating and trailer type references are application guides only. Final fitment must be confirmed by measurement and suspension layout.
What This Means: This listing is for one 1403T3 slipper spring, not a complete suspension kit.
Before Ordering: Verify spring dimensions, hanger configuration, axle capacity, and whether additional hardware is needed for installation.
R&P Repair Insight
A flattened, cracked, shifted, or fatigued leaf spring can affect trailer ride height, tire clearance, axle alignment, and load balance. When replacing slipper springs, inspect the entire suspension system rather than only the failed spring.
- Spring Condition: Look for broken leaves, sagging arch, rust separation, or signs of overload.
- Mounting Points: Inspect hangers and equalizers for elongation, cracking, or uneven wear.
- Hardware Check: Confirm the correct bolts, bushings, U-bolts, tie plates, and nuts are in good condition or replaced as needed.
Features
Seven-Leaf Slipper Spring
Multi-leaf spring construction designed to support trailer axle load and help absorb road shock during travel.
4,000 lb Spring Capacity
Rated for 4,000 lbs per spring when properly matched to the suspension system and trailer application.
Common Heavy-Duty Trailer Fit
Commonly used on trailers equipped with 8,000 lb axles where the spring dimensions and hanger layout match.
Nylon Eye Bushing Installed
Includes a nylon bushing in the spring eye for the mounting point. Confirm bushing size and hardware compatibility before installation.
Included Components
| Quantity | Item |
|---|---|
| 1 | 1403T3 seven-leaf slipper spring |
| 1 | Nylon eye bushing installed |
| Not Included | Mounting bolts, nuts, U-bolts, tie plates, hangers, equalizers, and other suspension hardware |
Measurement Reference
| Part Number | A | B | C | D |
|---|---|---|---|---|
| 1403T3 | 26-1/8" | 24-7/8" | 3" | 11-3/16" |
