Looking for the best leaf spring kits to upgrade your trailer’s suspension? Our guide delivers hands-on reviews and tested picks to help you choose durable, high-capacity options for a smoother, safer towing experience.
Upgrading your trailer’s suspension? Leaf spring kits are the backbone of smooth, safe towing. From Magorfas to Youxmoto, we’ve tested the top options for durability and load capacity.
Key picks handle up to 6,000 lbs. They include U-bolts, hangers, and rust-resistant steel. Installation? Quick and hassle-free.
Our guide ensures you pick the perfect fit for your trailer. Trust our hands-on reviews to boost your setup’s strength and stability. Ready to roll? Let’s dive in!
List of Top 10 Leaf Spring Kits
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Magorfas Single Trailer Leaf Spring 4 Leaf Double Eye 1750 lbs Cap for 3500 lbs Axle Suspension, Hanger & U-Bolt kit 25-1/4″ Length fits for SW4B, Round Trailer Axles- Set 2 |
This product is perfect for trailer owners upgrading or repairing suspension systems. It fits SW4B trailers and 3,500 lbs axles with 2-3/8″ round beams. The kit includes 4-leaf springs, U-bolts, hangers, and shackles for easy installation. Made from corrosion-resistant steel, it handles heavy loads safely. Not for cars or trucks—ideal for trailers only. |
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Youxmoto 4pcs 5 Leaf Springs 3000lb, for 5200lb-6000lb Tandem Trailer Axle Suspension Kit & U-Bolt & Hanger Kit; 25-1/4″ L, 1-3/4″ Width, 9/16″ Bushing Dia, Fits for SW5 |
This Youxmoto 4pcs 5 Leaf Springs kit is perfect for anyone with a 5200lb-6000lb tandem trailer axle looking to upgrade their suspension or replace worn-out parts. It’s designed for easy installation and long-lasting performance, ensuring your trailer is ready for the road. |
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AEagle 25-1/4″ 4-Leaf 1750lb Capacity Double Eye Spring for 3500lb Trailer Axle & U-Bolt & Tandem Hanger Kit, 1.75″ Width, 3″ Free Open Suspension Kit Replaces SW4B, 4 PCS |
Trailer owners needing strong, reliable suspension will love this AEAGLE kit. It’s perfect for 3500lb trailer axles, offering rugged durability, easy installation with all parts included, and corrosion-resistant design for long-term use. |
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2 Pieces of Replacement for SW4B 4 Leaf Trailer Spring, 3500lb Single Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, U-Bolt and Hanger Kit |
This product is perfect for trailer owners needing durable replacements for 3,500-pound trailer axles. It includes heavy-duty carbon steel springs with a rust-resistant coating, a U-bolt kit, and an axle hanger kit for easy installation. |
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dreamdragon 6K Tandem Trailer Suspension Kit – 5 Leaf Spring, U-Bolts & Hanger Set for 6,000 lbs Axles |
This Dreamdragon 6K Tandem Trailer Suspension Kit is perfect for heavy-duty trailer owners who need reliable and durable suspension. It’s ideal for trailers with 5,200-6,000 lbs axles, ensuring smooth and stable performance. |
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Youxmoto 3500lb Single Trailer Axle Suspension Kit 1750lb Leaf Springs & Ubolt Kit; Pair of Trailer Leaf Spring 4 Leaf Double Eye, 25-1/4″ L, 1-3/4″ Width, 9/16 Eye I.D |
This product is perfect for trailers needing strong, reliable suspension. 4-leaf springs handle 3,500-pound loads with extra-strong carbon steel and anti-rust coating. Direct replacement parts fit 2-3/8-inch axles, offering simple installation and long-lasting use. |
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Autoholic Trailer Leaf Spring Kit 3500lb Single Trailer Axle 4 Leaf Spring Kit with U-Bolt Kit & Single Trailer Axle Hanger Kit |
Trailer owners needing sturdy suspension for 3500 lbs axles. This kit supports heavy loads with manganese steel strength and includes all parts for quick, easy installation. |
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iiLentes 722-032 722-029 Rear Leaf Spring Hanger Bracket Shackle Kit For 1999-2013 Chevy Silverado 1500 GMC Sierra 1500 K150383 K150381 22820716 12474021 |
This rear leaf spring hanger bracket shackle kit is perfect for Chevy Silverado 1500 and GMC Sierra 1500 owners who want to improve their truck’s performance and ride comfort. It’s easy to install and built to last, making it a great choice for anyone looking to upgrade their suspension. |
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Magorfas Tandem Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap for 6000 lbs Axle Suspension & Hanger Kit 25-1/4″ Length fits for SW5 – Set 4 |
Trailer owners needing a 6000 lbs capacity suspension will love these 5-leaf springs. Built with Manganese Steel and a full installation kit, they ensure durable, easy upgrades for heavy-duty trailers. |
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Magorfas Tandem Trailer Leaf Spring 4 Leaf Double Eye 1750 lbs Cap for 3500 lbs Axle Suspension, Hanger & U-Bolt kit 25-1/4″ Length fits for SW4B, for Round Trailer Axles- Set 4 |
This product is perfect for trailers needing durable suspension parts. It fits 3500 lbs axle systems with 25-1/4″ leaf springs, ideal for heavy-duty use. Built with high-quality manganese steel and a full accessory kit, it ensures strength and easy installation. |
Detailed Reviews
Discover the top 10 Leaf Spring Kits tailored for your trailer needs. Each kit is expert-reviewed and backed by customer feedback, ensuring reliability and performance. Whether you prioritize durability, ease of installation, or affordability, this guide has you covered. Dive in to find the perfect match for your trailer and enjoy smooth, safe towing every time.
1. Magorfas Single Trailer Leaf Spring 4 Leaf Double Eye 1750 lbs Cap for 3500 lbs Axle Suspension, Hanger & U-Bolt kit 25-1/4″ Length fits for SW4B, Round Trailer Axles- Set 2
This leaf spring has 4 leaves and measures 25-1/4″ long. It supports up to 1,750 lbs per spring and fits 3,500 lbs axles. The set works with SW4B trailers and round axles 2-3/8″ wide.
The kit includes U-bolts, hangers, and shackle parts for easy setup. It’s built from Manganese Steel for strength and coated to resist rust. Note: Not for cars, trucks, or vans—only for trailers.
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Perfect For:
This product is perfect for trailer owners upgrading or repairing suspension systems. It fits SW4B trailers and 3,500 lbs axles with 2-3/8″ round beams. The kit includes 4-leaf springs, U-bolts, hangers, and shackles for easy installation. Made from corrosion-resistant steel, it handles heavy loads safely. Not for cars or trucks—ideal for trailers only.
Ready to Purchase?
2. Youxmoto 4pcs 5 Leaf Springs 3000lb, for 5200lb-6000lb Tandem Trailer Axle Suspension Kit & U-Bolt & Hanger Kit; 25-1/4″ L, 1-3/4″ Width, 9/16″ Bushing Dia, Fits for SW5
Youxmoto 4pcs 5 Leaf Springs are built tough for tandem trailer axles. They handle 3000 lbs each, perfect for 5200-6000 lb trailers. Precision design ensures a direct fit for your setup.
This kit includes everything you need: U-bolts, hangers, shackle straps, and bolts. It’s a complete solution for trailer suspension upgrades. Installation is simple with all parts included.
Heavy-duty carbon steel ensures durability. An anti-rust coating adds long-lasting performance. Youxmoto offers quick support within 8 hours.
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Perfect For:
This Youxmoto 4pcs 5 Leaf Springs kit is perfect for anyone with a 5200lb-6000lb tandem trailer axle looking to upgrade their suspension or replace worn-out parts. It’s designed for easy installation and long-lasting performance, ensuring your trailer is ready for the road.
Ready to Purchase?
3. AEagle 25-1/4″ 4-Leaf 1750lb Capacity Double Eye Spring for 3500lb Trailer Axle & U-Bolt & Tandem Hanger Kit, 1.75″ Width, 3″ Free Open Suspension Kit Replaces SW4B, 4 PCS
The AEagle 25-1/4″ 4-Leaf Spring Kit is designed for 3500lb trailers. It includes 4 springs with a 1750lb capacity each. The eye-to-eye length is 25-1/4 inches.
This kit comes with a U-bolt kit for 2-3/8″ diameter axles and a tandem axle hanger kit. It also includes tie plates, shackle bolts, and locknuts. Installation is easy and all parts are included.
Each spring has an anti-rust coating for long-lasting durability. It is tested before shipping for quality.
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Perfect For:
Trailer owners needing strong, reliable suspension will love this AEAGLE kit. It’s perfect for 3500lb trailer axles, offering rugged durability, easy installation with all parts included, and corrosion-resistant design for long-term use.
Ready to Purchase?
4. 2 Pieces of Replacement for SW4B 4 Leaf Trailer Spring, 3500lb Single Trailer Axle Suspension Kit with 1750lb Capacity Double Eyes Leaf Springs, U-Bolt and Hanger Kit
This trailer spring kit includes 2 replacement springs with a 1,750lb capacity each. It is designed for a 3,500lb trailer axle and fits standard trailers. The kit also includes U-bolts and a hanger kit for easy installation.
The leaf springs are made from heavy-duty carbon steel for long-lasting use. The kit also provides after-sales service for any issues.
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Perfect For:
This product is perfect for trailer owners needing durable replacements for 3,500-pound trailer axles. It includes heavy-duty carbon steel springs with a rust-resistant coating, a U-bolt kit, and an axle hanger kit for easy installation.
Ready to Purchase?
5. dreamdragon 6K Tandem Trailer Suspension Kit – 5 Leaf Spring, U-Bolts & Hanger Set for 6,000 lbs Axles
The DreamDragon 6K Tandem Trailer Suspension Kit is built for heavy-duty trailers. It supports 6,000 lbs axles with 5-leaf springs and strong hardware.
Each leaf spring handles 3,000 lbs. They measure 25-1/4″ eye-to-eye with a 1-3/4″ width for stability. The 5-leaf design and 9/16″ bushing ensure smooth, long-lasting use.
This kit includes U-bolts, hangers, and shackle straps. Parts like equalizers and tie plates help secure your trailer’s suspension. All components are trailer-specific for safe, reliable performance.
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Perfect For:
This Dreamdragon 6K Tandem Trailer Suspension Kit is perfect for heavy-duty trailer owners who need reliable and durable suspension. It’s ideal for trailers with 5,200-6,000 lbs axles, ensuring smooth and stable performance.
Ready to Purchase?
6. Youxmoto 3500lb Single Trailer Axle Suspension Kit 1750lb Leaf Springs & Ubolt Kit; Pair of Trailer Leaf Spring 4 Leaf Double Eye, 25-1/4″ L, 1-3/4″ Width, 9/16 Eye I.D
This Youxmoto 3500lb trailer axle suspension kit includes 4-leaf double-eye springs with a 25-1/4″ length and 1-3/4″ width. Each spring supports 1750lbs, ideal for 3,500lb trailers. The kit comes with U-bolts, tie plates, and nuts for quick installation.
The 4-leaf design boosts load capacity by 0.5 to 1 times versus standard springs. Built with heavy-duty carbon steel and anti-rust coating, it ensures durability and corrosion resistance.
Simple setup fits 2-3/8″ round axles. Repairs damaged springs from cracks, rust, or overloading. Youxmoto offers fast support within 8 hours for any issues.
| Pros | Cons |
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Perfect For:
This product is perfect for trailers needing strong, reliable suspension. 4-leaf springs handle 3,500-pound loads with extra-strong carbon steel and anti-rust coating. Direct replacement parts fit 2-3/8-inch axles, offering simple installation and long-lasting use.
Ready to Purchase?
7. Autoholic Trailer Leaf Spring Kit 3500lb Single Trailer Axle 4 Leaf Spring Kit with U-Bolt Kit & Single Trailer Axle Hanger Kit
Upgrade your trailer with the Autoholic Trailer Leaf Spring Kit. It’s designed for 3500 lbs axles and includes U-bolts and axle hangers. Each 4-leaf spring supports up to 1750 lbs, ensuring smooth and safe travel.
This kit reduces stress on your trailer’s chassis and axles. Made from durable manganese steel, it’s built to last and easy to install.
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Perfect For:
Trailer owners needing sturdy suspension for 3500 lbs axles. This kit supports heavy loads with manganese steel strength and includes all parts for quick, easy installation.
Ready to Purchase?
8. iiLentes 722-032 722-029 Rear Leaf Spring Hanger Bracket Shackle Kit For 1999-2013 Chevy Silverado 1500 GMC Sierra 1500 K150383 K150381 22820716 12474021
iiLentes 722-032 722-029 is a rear leaf spring hanger bracket and shackle kit. It’s made for 1999-2013 Chevy Silverado 1500 and GMC Sierra 1500 trucks.
This kit gives you 2 leaf spring hanger brackets and 2 shackles. All parts are direct replacements for old or broken ones. No extra parts needed—everything fits right out the box.
The kit uses strong materials for long use. It boosts stability and ride comfort. Easy install means you save time and effort.
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Perfect For:
This rear leaf spring hanger bracket shackle kit is perfect for Chevy Silverado 1500 and GMC Sierra 1500 owners who want to improve their truck’s performance and ride comfort. It’s easy to install and built to last, making it a great choice for anyone looking to upgrade their suspension.
Ready to Purchase?
9. Magorfas Tandem Trailer Leaf Spring 5 Leaf Double Eye 3000 lbs Cap for 6000 lbs Axle Suspension & Hanger Kit 25-1/4″ Length fits for SW5 – Set 4
Magorfas Tandem Trailer Leaf Spring is built for heavy-duty trailers. It has 5 leaves and a 3000 lbs capacity per spring, fitting SW5 trailers with 6000 lbs axle systems.
This spring kit includes equalizers, hangers, and shackle straps. It uses 60Si2Mn steel for strength and flexibility. Do not use for cars, trucks, or vans.
The 25-1/4″ length ensures proper suspension fit. Its corrosion-resistant paint and easy-install design make it durable. Always check load ratings and tighten nuts horizontally for safety.
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Perfect For:
Trailer owners needing a 6000 lbs capacity suspension will love these 5-leaf springs. Built with Manganese Steel and a full installation kit, they ensure durable, easy upgrades for heavy-duty trailers.
Ready to Purchase?
10. Magorfas Tandem Trailer Leaf Spring 4 Leaf Double Eye 1750 lbs Cap for 3500 lbs Axle Suspension, Hanger & U-Bolt kit 25-1/4″ Length fits for SW4B, for Round Trailer Axles- Set 4
The Magorfas Tandem Trailer Leaf Spring is a durable and reliable solution for your trailer suspension needs. It’s designed to handle 1750 lbs per spring and fits 3500 lbs axles. Perfect for SW4B models, it ensures smooth and stable towing.
This kit includes high-quality materials like manganese steel for strength and corrosion-resistant paint for longevity. It comes with all essential accessories, including equalizers, hangers, and U-bolts. Everything you need for a complete installation.
Remember, this product is specifically for trailers, not cars or trucks. Always check the load rating before use to ensure safety and proper fit. Trust Magorfas for dependable trailer performance.
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Perfect For:
This product is perfect for trailers needing durable suspension parts. It fits 3500 lbs axle systems with 25-1/4″ leaf springs, ideal for heavy-duty use. Built with high-quality manganese steel and a full accessory kit, it ensures strength and easy installation.
Ready to Purchase?
Buying Guide
Upgrading your trailer’s suspension? Leaf spring kits are the key to smooth, safe towing. We’ve tested top brands like Magorfas and Youxmoto to help you find the best fit.
Here’s what to consider when buying:
– Load Capacity: Match the kit’s load capacity to your trailer’s weight. Overloading can cause damage.
– Axle Compatibility: Ensure the kit fits your axle size. Wrong sizes lead to poor performance.
– Material Quality: Look for rust-resistant steel like manganese or carbon steel for longevity.
– Included Parts: Kits with U-bolts, hangers, and shackles save time and ensure a complete upgrade.
– Ease of Installation: Choose kits with clear instructions and all parts included for hassle-free setup.
– Brand Support: Brands offering quick customer support can help resolve issues faster.
– Durability: Check for anti-rust coatings and heavy-duty designs to withstand tough conditions.
Ready to upgrade? Trust our guide to find the perfect leaf spring kit for your trailer.