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Item #:
84772672
2 Pieces of Replacement for SW4B 4 Leaf Trailer Leaf Spring, 3500lb Single Trailer Axle Suspension Kit, 25-1/4" Length with 1750lb Capacity Double
Item #:
84772672
BND 372
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 9 items left in stock.
Order now and get it around Sunday, August 16
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Each spring offers 1,750lbs capacity, suitable for standard 3,500lbs trailer axle.
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What Stands Out
Heavy-Duty Capacity
Designed to support up to 3500lbs, this trailer leaf spring kit enhances your vehicle's suspension, ensuring stability and durability under heavy loads, making it perfect for transporting cargo safely.
Easy Installation
With a straightforward installation process, this suspension kit includes necessary components like U-bolts, allowing users to upgrade their trailer suspension quickly and with minimal tools, saving time and effort.
Enhanced Durability
Constructed from high-quality materials, these double-eyed leaf springs resist wear and tear, offering long-lasting performance that outlasts competitors, ensuring reliable usage for frequent trailer haulers.
Product Details
- About The Springs: Each spring offer 1,750lbs capacity, suit for standard 3,500lbs trailer axle. Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, 2 Bushings Installed for Each Spring, Leaf Thickness 5/16.
- About The Replacement: It will replace for SW4B. NOTE: The nut should be tightened horizontally. Failure to do so will affect the final user experience.
- About the axle U-bolt kit: this kit include 4 x 5-1/2" long U bolts, U-bolt thread diameter is 1/2",the curvature (inside diameter) of the U-bolt is 2 4/9" ; 2 x tie plates for 1-3/4" leaf springs; 8 x 1/2"-20 hex nuts. And this kit used for 2-3/8" dia round trailer axles.
- About Material and Design: The Leaf Springs Made of Heavy Duty Carbon Steel for transmission stability and friction damping; Extra added anti-rust coating for corrosion resistance and long-lasting performance.
- After-sales service: Any questions after receiving, please contact us freely. Thanks for choosing us!
Product Technical Details
| Manufacturer | SEHNSUCHT |
| Brand | SEHNSUCHT |
| Item Weight | 28.8 pounds |
| Package Dimensions | 28.49 x 12.14 x 4.96 inches |
| Manufacturer Part Number | LS0003 |
Who Should Buy?
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Light-Duty Trailers
Ideal for users with light-duty trailers needing reliable suspension without heavy weight distribution.
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Budget-Conscious Owners
Perfect for those seeking cost-effective replacement parts to maintain and enhance trailer functionality.
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DIY Enthusiasts
Great for individuals who enjoy hands-on repair and installation of their trailer's suspension components.
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Heavy Loads
Not suitable for trailers consistently carrying heavy loads exceeding the 3500lb capacity limit.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the load capacity of the SW4B Trailer Leaf Spring replacement?
Answer: The SW4B Trailer Leaf Spring replacement has a load capacity of 1750 pounds per spring, which is integral for supporting a total trailer axle capacity of 3500 pounds. This means that when you install two of these leaf springs, they work together to provide solid support for your trailer’s weight, contributing to a balanced and stable towing experience. It's particularly useful for trailers transporting heavy loads, ensuring safety and durability during travel. -
Question:
How do I know if I need to replace my trailer leaf springs?
Answer: If your trailer is experiencing sagging, bouncing excessively when on the road, or if the leaf springs show visible signs of wear such as cracks or broken leaves, it's a clear indication that a replacement is necessary. Regular inspections, especially if you frequently tow heavy loads, can help you identify when replacements are required. Addressing these issues promptly can enhance your trailer's performance and ensure smoother towing. -
Question:
Can I install the SW4B Leaf Springs myself, or should I hire a professional?
Answer: While it is possible to install the SW4B Leaf Springs as a DIY project, it requires the right tools and knowledge about suspension systems. If you have mechanical skills and a safe environment to work in, you can follow instructions available in manuals or online. However, if you are unsure, hiring a professional is advisable to ensure the installation is done correctly, providing peace of mind and enhancing safety while towing. -
Question:
What material are these leaf springs made from?
Answer: The SW4B Trailer Leaf Springs are typically made from high-quality, heat-treated steel that provides durability and flexibility. This material choice is essential as it helps to absorb shocks during towing and prolongs the lifespan of the springs. Their robust construction supports heavy loads while maintaining the structural integrity of the trailer, making them a reliable choice for various hauling needs. -
Question:
What is the difference between double-eye leaf springs and other types?
Answer: Double-eye leaf springs feature a loop at both ends, which allows for greater articulation and smoother movement compared to other types like slipper springs. This design enhances suspension performance, offering better support for the trailer’s weight. The double-eye configuration is designed to provide more stability and comfort, especially on uneven terrain, making it ideal for off-road or rugged use. -
Question:
How do I maintain my trailer leaf springs?
Answer: Maintaining your trailer leaf springs involves regular inspections for wear and tear, as well as lubricating the moving parts to prevent rust and corrosion. Cleaning the springs and ensuring that they are free from debris will also prolong their lifespan. Keeping an eye on your trailer’s overall suspension system can help you identify smaller issues before they become larger problems, ensuring a safer towing experience. -
Question:
Will these leaf springs fit all types of trailers?
Answer: The SW4B Trailer Leaf Springs are compatible with a variety of trailers, specifically those with single axle systems rated for 3500 pounds. However, it is important to check the specifications of your trailer to confirm compatibility. If your trailer does not match these specifications, you may need a different type of suspension kit. Always consult a professional if you are uncertain about compatibility. -
Question:
What tools will I need for the installation of SW4B Leaf Springs?
Answer: To install the SW4B Leaf Springs, you will typically need basic hand tools such as a socket set, wrenches, a jack, and jack stands. Additionally, a pry bar may be useful to assist in removing old springs. Having these tools prepared will facilitate a smoother installation process, ensuring that you can safely and effectively replace your trailer’s suspension setup. -
Question:
Where can I buy 2 Leaf of Replacement for SW4B Trailer Leaf Spring in Brunei?
Answer: You can purchase the 2 Leaf of Replacement for SW4B Trailer Leaf Spring at Ubuy in Brunei. Ubuy offers a convenient platform for accessing a wide range of trailer components, ensuring you find the right leaf springs and installation kits tailored for your needs. Their user-friendly interface and customer service make it easy to shop for quality products. -
Question:
Is there a difference in performance between stock and aftermarket leaf springs?
Answer: Yes, aftermarket leaf springs like those from the SW4B range may offer enhanced performance compared to stock options. Aftermarket springs are often designed with better materials and engineering, which can lead to improved load handling, stability, and ride comfort. If you're frequently towing heavy loads or navigating rugged terrain, investing in quality aftermarket leaf springs can significantly enhance your trailer’s overall performance.
SEHNSUCHT Springs Editorial Review
In general, the product seems to be of good quality, with the included nylon bushings being suitable for use; however, customers have noted issues with missing parts upon delivery. Some users also faced challenges when trying to replace the nylon bushings with brass bushings due to differences in measurements. Despite these setbacks, for those who didn't encounter missing parts, the leaf springs appeared to be sufficient for their needs. It is recommended that users check the included parts carefully and be prepared to use the provided nylon bushings to avoid compatibility issues. **
Customer Reviews & Ratings
184 customers ratings
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5 Star
81%
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4 Star
12%
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3 Star
5%
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2 Star
1%
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1 Star
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Pros
- Good quality leaf springs included
- Suitable for use with included nylon bushings
Cons
- Missing parts reported by some customers
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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BND 372
Order now and get it around Sunday, August 16
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 9 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Features & Benefits
- 2 Leaf replacement kit for SW4B trailer leaf spring.
- Designed for 3,500lbs trailer axle with 1,750lbs capacity each.
- Durable heavy-duty carbon steel construction for stability.
- Features anti-rust coating for long-lasting performance.
- Includes U-bolt kit for easy installation.
- Perfect for enhancing your trailer's suspension system.
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