5000 Lb Trailer Axle Kit Reviews: 5 Best Options

If you’re rebuilding or upgrading a trailer that carries up to 5,000 pounds, choosing the right axle kit is essential for safety and durability. A complete 5000 lb trailer axle kit saves you time by bundling springs, hangers, and sometimes hubs or brakes.

This guide reviews five top options, from basic suspension kits to full axle assemblies, so you can match the right components to your trailer’s specifications.

LIBRA 10K Tandem Trailer Axle Suspension Kit

The LIBRA 10K Tandem kit is designed for trailers using a 10,000 lbs gross axle with 5,000 lbs springs. Each five-leaf spring measures 30-1/2 inches eye-to-eye with a 4-inch free arch, giving you extra support for heavy loads. The hanger set is sized for 42-1/4 inch axle spacing, making it a direct replacement for many standard tandem trailers.

You get two equalizers, six hangers, shackles, and all necessary hardware for a complete suspension swap. While it doesn’t include the axle itself, the spring dimensions fit many 72-80-1 and UNA297 replacements. This kit is a smart pick if you already have axles and just need sturdy springs and hangers.

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• Heavy Duty 5,000lbs capacity leaf spring, for 10,000lbs general duty trailer axle
• Free length from center of eye to tip of other end: 30-1/2", Free open: 4", width of leaf: 2.5", 5 leaves, 3/4" bushing dia
• It will replace 72-80-1 / LIB-507-SR / UNA297 /176326 (different SKU# but same spring)
• Complete huanger kit for tandem 10,000lb, general duty trailer axles with 42-1/4" axles spacing
• Attaches 4 of 2-1/2" wide slipper leaf springs to your trailer frame

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LIBRA 5,000 lbs Tandem Trailer Axle Suspension Kit

This LIBRA 5,000 lbs tandem kit uses two 2,500 lbs leaf springs to support a 5,000 lbs axle. Each spring is 25-1/4 inches eye-to-eye with a 3-inch free arch and four leaves. The 1-3/4 inch width fits standard trailer frames, and the 9/16 inch bushings match common shackle sizes.

The included hanger kit features six 3-inch hangers, two equalizers, shackle straps, and bolts with locknuts. You can also use these springs on a 3,500 lbs axle if you need extra capacity by replacing the lighter springs. It’s a versatile option that covers many light-duty to medium-duty trailer builds.

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• 2,500lbs capacity per each spring, for 5,000lbs axle, Eye to Eye length: 25-1/4", Free open: 3", width of leaf: 1-3/4", 4 leaves
• Can also be used on 3,500lbs axles by replacing the weaker 1,750lbs spring for extra capacity
• It will replace SW4 / 72-25 / LIB-402-DE / UNA218 / PR4 / 124886 / 9150016 / 93181 (different SKU# same spring)
• Include Complete tandem trailer axle hanger kit for 1-3/4" leaf springs, 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
• LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers.

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dreamdragon 5K Tandem Trailer Suspension Kit

The dreamdragon 5K Tandem Suspension Kit delivers two 4-leaf springs rated at 2,500 lbs each, precisely matched to a 5,000 lbs axle. With a 25-1/4 inch eye-to-eye length and 3-inch free arch, these springs are built for stability and durability. The leaf width of 1-3/4 inches and 9/16 inch bushings are standard across many trailer models.

Your purchase includes two springs, two equalizers, six hangers, eight shackle straps, and fourteen long bolts with locknuts. This all-in-one hardware bundle saves you from sourcing parts separately. Just confirm your trailer frame dimensions before ordering to ensure a proper fit.

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• This Tandem Trailer Leaf Spring offers a 2,500 lbs capacity per spring, designed specifically for 5,000 lbs axles, providing robust support for heavy-duty trailer applications.
• Featuring a 25-1/4" eye-to-eye length, 3" free open height, and 1-3/4" leaf width, this 4-leaf spring is engineered for superior strength and durability, with a 9/16" bushing diameter for smooth operation.
• Accessory Kit: 2pcs 4 leaf springs, 2pcs equalizers, 6pcs tall hanger, 8pcs shackle straps, 14pcs long shackle bolts and locknuts
• Trailer Leaf Spring Note! These leaf springs kit are ONLY designed for the trailer. Any questions after receiving Trailer Axle Suspension Kit , please contact us freely
• High Quality Materials: Our trailer leaf spring kits are made of 60Si2Mn (Manganese Steel) for greater strength, flexibility and hardenability. The surface has 2 coats of paint, which has good corrosion resistance

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RV MURTS Trailer Axle Kit 3,500 lbs

The RV MURTS Trailer Axle Kit is a complete bolt-on solution for a 3,500 lbs axle, making it ideal for cargo or boat trailers where you need everything in one package. The axle measures 61 inches hub face with a 46-inch spring center, and the five-lug 4.5-inch bolt pattern fits common trailer hubs. Each side includes a pre-installed drum hub for quick installation.

This kit also includes the same leaf spring tandem suspension setup: two 4-leaf springs (25-1/4 inch eye-to-eye, 3-inch free arch), hangers, shackles, and U-bolts. While the axle is rated for 3,500 lbs, the spring and hardware set could be reused with a higher-capacity axle if needed. It’s a practical choice if you want a full axle assembly rather than piecing parts together.

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• Compatibility. Trailer axle kit for 3,500lb cargo trailer, 61" hubface – 46" spring center(reference from P2), impressive support to wheels and shock absorbent for RV camper, pack with spring, U-bolt, hanger and shackle kit for replacement.
• Trailer Axle Parts. Distance between spring center is 46" and hub face 61", 5 bolt on 4.5 pattern trailer drum hub pre-installed, replace the axle with prominent steel-made, provide better support to thefor 3500 lbs cargo trailer.
• Trailer Leaf Spring. Confirm the measurement for sure fit, 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, OEM reference: SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184.
• Includes. Tandem trailer leaf spring kit included compatible 4 U-bolts feature 5-1/2'' long, 1/2'' dia, 2 tie plates and 8 hex nuts, 4 hangers, 4pcs 3-1/8" shackle straps and necessary locknuts and shackle bolts for one package easy replacement.
• Durability. Trailer axle springs constructed with prominent steel with anti-corrosion coating, DOT qualified hardware and accessories improve the suspension system for long time and long distance journey in years.

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VEVOR Electric Trailer Brake Assembly 2-Pair

The VEVOR Electric Trailer Brake Assembly gives you two 12-inch by 2-inch self-adjusting brake assemblies for a 7,000 lbs axle. These are ideal if you’re building or upgrading a heavy trailer that needs reliable stopping power. The self-adjusting mechanism saves you from manual adjustments over time, while the 5-hole mounting pattern fits standard backing plates.

Each assembly is ready to install straight from the box, with high compatibility with most 7,000 lbs trailer axles. While this kit doesn’t include the axle or suspension parts, it pairs perfectly with a 5,000 lb axle setup when combined with a proper spring kit. It’s a straightforward upgrade for safer towing.

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• Self-Adjusting Electric Brake: Say goodbye to manual adjustments! Dive into the world of 12" x 2" electric trailer brake assemblies that self-adjust. It's not just smart; it's efficient and gives your trailer that smooth braking touch.
• Hassle-Free Installation: DIY's best friend! Our electric trailer brake is straightforward and a breeze to install. It's ready to install right out of the box and boasts high compatibility. Wherever you are, installation is just a few steps away.
• Built for the Long Haul: Keep on rolling! With a lifespan of up to 30,000 kilometers, these trailer brakes are in it for the long haul, designed for your trailer's daily adventures. Constructed from premium materials, our brakes promise robust durability and resistance to wear and tear.
• Versatility at Its Best: The trailer brake kit has a broad range of applications, including towing trailers, transporting goods, camping trips, and more. It's compatible with Dexter, AL-KO (a brand under the former), and other trailer axles.
• Top-Notch Packaging: When it comes to packaging, we don't just box; we care. Our trailer electric brake kit is packaged above industry standards. Every brake is meticulously checked and wrapped to ensure what you get is nothing short of perfect.

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Buyer’s Guide: What to Consider

Here’s what matters when selecting a 5000 lb trailer axle kit: capacity, spring dimensions, and included hardware for safe towing.

• Load Capacity: Ensure each spring’s load rating matches your axle’s gross weight. Tandem sets typically use two springs rated for half the total capacity.
• Spring Dimensions: Eye-to-eye length, free arch, leaf width, and bushing diameter must fit your trailer frame and existing suspension geometry.
• Kit Inclusions: Kits vary from basic spring-and-hanger sets to full axles with hubs, brakes, and hardware. Choose the level of completeness you need.
• Axle Fitment: Check hub face, spring center distance, bolt pattern, and axle length to confirm fitment for your trailer model.
• Brake Upgrades: For trailers over 3,000 lbs, electric brakes improve stopping control. Self-adjusting models reduce maintenance over time.

Conclusion

Choosing the right 5000 lb trailer axle kit keeps your trailer stable and safe under load. Whether you need a full suspension set, a complete axle with hubs, or just the springs and hangers, each of these options delivers dependable performance.

For most tandem trailers, the LIBRA tandem kit offers robust capacity and easy replacement. If you need a full axle assembly, the RV MURTS kit gives you everything pre-installed. Match your measurements carefully, and you’ll be ready to hit the road.