--- product_id: 611845730 title: "4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit" brand: "sehnsucht" price: "€ 1243.10" currency: EUR in_stock: true reviews_count: 12 category: "Sehnsucht" url: https://www.desertcart.sk/products/611845730-4-leaf-of-replacement-for-sw4b-trailer-leaf-spring-3500lb store_origin: SK region: Slovakia --- # 1750lb capacity per spring Complete U-bolt & hanger kit included Heavy-duty carbon steel build 4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit **Brand:** sehnsucht **Price:** € 1243.10 **Availability:** ✅ In Stock ## Summary > 🚛 Elevate your trailer game with rock-solid suspension power! ## Quick Answers - **What is this?** 4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit by sehnsucht - **How much does it cost?** € 1243.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/611845730-4-leaf-of-replacement-for-sw4b-trailer-leaf-spring-3500lb) ## Best For - sehnsucht enthusiasts ## Why This Product - Trusted sehnsucht brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful Load Support:** Each leaf spring supports up to 1750lbs, perfectly engineered for 3500lb tandem trailer axles. - • **All-in-One Suspension Kit:** Includes 2 U-bolt kits, tie plates, equalizers, hangers, shackle straps, and bolts for a hassle-free upgrade. - • **Durable Carbon Steel Construction:** Crafted from heavy-duty carbon steel with anti-rust coating for unmatched longevity and corrosion resistance. - • **Optimized Performance & Stability:** Enhanced friction damping and transmission stability ensure smooth rides and reliable trailer handling. - • **Precision Fit & Easy Installation:** Designed as a direct replacement for SW4B with exact 25-1/4 inch eye-to-eye length for seamless fit. ## Overview This 4-leaf replacement spring kit for SW4B trailers offers a robust 1750lb capacity per spring, built from heavy-duty carbon steel with anti-rust coating. It includes a comprehensive suspension upgrade kit featuring U-bolts, hangers, and equalizers, designed for 3500lb tandem trailer axles to deliver durable, stable, and easy-to-install suspension performance. ## Description Buy 4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit: Springs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Nice quality for the price. - Very nice set of springs. The finish coating was very clean and seemed well made. Easy install and seems to work well. Very nice for the price. Review: Nice - The springs seem to be high quality Easy to install Like for like fit ## Features - 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 inch. NOTE: The nut should be tightened horizontally. Failure to do so will affect the final user experience. - About The Replacement: It will replace for SW4B. 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. - 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.(This product offer 2* U-bolt kit). - About The Trailer Axle Hanger Kit: This kit include 2 x EQ-E1 equalizers, 6 x 3" tall hangers, 8 x shackle straps, 14 x 9/16"-18 x 3" long shackle bolts and locknuts. And this kit used for 1-3/4" leaf springs. - After-sales service: Any questions after receiving, please contact us freely. Thanks for choosing us! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BX67XDP8 | | Auto Part Position | Front | | Best Sellers Rank | #28,675 in Automotive ( See Top 100 in Automotive ) #6 in Trailer Springs | | Brand Name | SEHNSUCHT | | Customer Reviews | 4.6 4.6 out of 5 stars (146) | | Included Components | Installation Hardware | | Manufacturer | SEHNSUCHT | | Material Type | Carbon Steel | | Maximum Lifting Height | 3 Inches | ## Product Details - **Auto Part Position:** Front - **Brand:** SEHNSUCHT - **Included Components:** Installation Hardware - **Material:** Carbon Steel - **Maximum Lifting Height:** 3 Inches ## Images ![4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit - Image 1](https://m.media-amazon.com/images/I/81zB-wxWyaL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice quality for the price. *by J***R on August 25, 2025* Very nice set of springs. The finish coating was very clean and seemed well made. Easy install and seems to work well. Very nice for the price. ### ⭐⭐⭐⭐⭐ Nice *by R***T on October 9, 2025* The springs seem to be high quality Easy to install Like for like fit ### ⭐⭐⭐⭐⭐ Nice kit *by M***T on February 15, 2026* Fitment was perfect, included all hardware and shackles. Cut the old bolts with an angle grinder and put the new ones in, it doesn't get much easier. ## Frequently Bought Together - 4 Leaf of Replacement for SW4B Trailer Leaf Spring, 3500lb Tandem Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, 2*U-Bolt and Hanger Kit - ECOTRIC Tandem Axle Trailer Fenders 72-7/8"x10-1/4"x13" Fit 13"-15" Tires Steel 14 Gauge Diamond Tread Plate Cargo Utility Landscape 2 Pcs - CheeMuii 7 Way Trailer Cord and 7 Gang Junction Box Kit with 12V Breakaway Switch and Plug Holder Heavy Duty 8 FT Trailer Wiring Harness Kit for Trailers RVs Campers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/611845730-4-leaf-of-replacement-for-sw4b-trailer-leaf-spring-3500lb](https://www.desertcart.sk/products/611845730-4-leaf-of-replacement-for-sw4b-trailer-leaf-spring-3500lb) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-09-11*