The Best trailer axle kit of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best trailer axle kit of 2025. Check our ranking below.
2,305 Reviews Scanned
Rank No. #1
RV MURTS Trailer Axle Kit 3500 lbs with 5 Lug on 4.5 Hubs, 61" Hubface - 46" Spring Center, Cargo Trailer Parts, Leaf Spring Tandem Suspension, U Bolt, Hanger, Shackle for Boat Trailer, RV.
- 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.
Rank No. #2
3500 lb Light Duty Single Trailer Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit (61" Hubface - 46" Spring Center, 5x4.5 Bolt Pattern)
- 61" Hubface 46" Spring Center / 5x4.5 Bolt Pattern
- What's Included: (1) 3.5k Idler Axle, (2) 1.75k 25.25" 4 Leaf Double Eye Springs, (2) 1.75k U-Bolt Kits, (1) Double Eye Hanger Kit
- Pre-packaged kit to ensure proper fitment of running gear, OEM Grade Trailer Axles & Suspension, High Strength Steel Axle Tube Construction
- Axles come fully assembled. Underslung - Axle is welded with spring seats on the bottom (Allows for lower ride height). EZ Lube Design: Removable rubber plug on the hub cap with easy access to a grease-able zerk fitting. Grease your axle without pulling off your whole entire hub.
- Designed for use on Light Duty Trailers: Utility, Boat, Car Haulers, ATV, Lawn & Landscape, Motorcycle, BBQ Pit, Cargo, Enclosed, RV Trailers and more
Rank No. #3
RV MURTS Trailer Axle Kit 3500 lbs, 73" Hubface - 58" Spring Center, Leaf Spring Tandem Suspension, U Bolt, Hanger, Shackle for Boat Trailer, RV
- Compatibility. Trailer axle kit for 3,500lb cargo trailer, 73" hubface - 58" 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.1
- Trailer Axle Parts Oulet. Maximum distance between spring center is 18'', between hubface is 14'', 5 bolt on 4.5 pattern trailer hub, 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.
Rank No. #4
2000 lb Light Duty Single Trailer Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit (71" Hubface - 58" Spring Center, 5x4.5 Bolt Pattern)
- 71" Hubface 58" Spring Center / 5x4.5 Bolt Pattern
- What's Included: (1) 2k Idler Axle, (2) 1k 25.25" 3 Leaf Double Eye Springs, (2) 1k U-Bolt Kits, (1) Double Eye Hanger Kit
- Pre-packaged kit to ensure proper fitment of running gear, OEM Grade Trailer Axles & Suspension, High Strength Steel Axle Tube Construction
- Axles come fully assembled. Underslung - Axle is welded with spring seats on the bottom (Allows for lower ride height). EZ Lube Design: Removable rubber plug on the hub cap with easy access to a grease-able zerk fitting. Grease your axle without pulling off your whole entire hub.
- Designed for use on Light Duty Trailers: Utility, Boat, Car Haulers, ATV, Lawn & Landscape, Motorcycle, BBQ Pit, Cargo, Enclosed, RV Trailers and more
Rank No. #5
3.5K Light Duty Single Trailer Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt kit (73" Hubface - 58" Spring Center, 5x4.5 Bolt Pattern)
- All-in-One Bundle: This 3.5K LD Single Axle trailer kit includes everything you need for a quick and easy installation, such as a 3.5k Idler Axle, double eye hanger kit, 4-Leaf Double Eye Springs, and 2 1.75k U-Bolt Kits
- High Strength Construction - The high strength steel axle tube construction ensures a durable and long-lasting performance for small utility trailers, cargo trailers, ATV trailers, and more
- High-Quality Parts - Made with OEM grade trailer axles and suspension, this kit is packed with high-temp axle grease for reliable performance
- Low Ride Height - With an underslung design, the axle is welded with spring seats on the bottom, allowing for a lower ride height and improved stability
- EZ Lube Design - Removable rubber plug allows for easy access to a grease-able zerk fitting, allowing you to grease your axle without having to remove the entire hub
Rank No. #6
Trailer Axle Electric Brake Kit, Pair of 5-Hole, 4.5" Bolt Circle Brake Drum with 10" x 2 1/4" Self-Adjusting Electric Brakes for 3500 lb Axles, Replacement 10” Brake Hub Drum Assembly
- Premium Material: This brake drum is made of high-quality iron and uses electroplating technology to protect the drum body, enabling it to work normally in various environments. At the same time, the brake drum is resistant to rust and corrosion, greatly extending the service life of the product.
- About The Drum and Self-Adjusting Electric Brakes: Classic design and rich production experience make the brake drum more excellent response, in a variety of harsh environments can achieve a short period of emergency braking, so that your journey is safer. It’s designed for 3500 lb Axles.
- Package Including: 2*brake drum 5 hole, 4.5" bolt, 2*Bearing inner ring replace for L68149( I.D:1.377", O.D:2.164"), 2*Bearing inner ring replace for L44649(I.D:1.062", O.D:2.058"), 2*grease seal(I.D: 1.718" O.D: 2.56" height: 0.5" ), 2*dust cover(Mounting diameter:1.988"), 2*rubber plug dust cover(Mounting diameter:1.988"), 10*hub nut(1/2-20 UNF-2B), 1*left electric brake, 1*right electric brake, 8*spring washer, 8*nut, 2* hexagon slotted nut, 2*flat washer, 2* cotter pin.
- Suit for: Pair of trailer 5 on 4.5" hub drum kits and 10" x 2 1/4" electric adjusting brakes fit for Dexter and other brands 3500lbs trailer axle. Fits 1-1/16'' to 1-3/8'' spindles 3,500 pounds trailer. Not fit for 1-1/16" Straight spindle and 1" Straight spindle.
- After Sale Service: High quality assurance! And we provide after-sales service policy. If you have any problems, please contact us first, we will try our best to solve your problem.
Rank No. #7
Yunnergo 2000 lb Idler Trailer Axle Kit with Suspension - Leaf Springs, Hanger & U-Bolt Kit 71" Hubface 58" Spring Center/ 4x4 Bolt Pattern
- Reliable Quality: This straight steel axle tube is crafted from high-strength materials, ensuring it can handle heavy loads and rough terrains, delivering long-lasting durability for your trailer needs
- Compatible Models: The design of this trailer axle accommodates a variety of applications, making it suitable for car trailers, landscape trailer axles, ATV trailers, RV trailers, and more, providing flexibility for every trailering need
- Excellent Performance: Engineered for optimal load distribution and stability, this trailer axle enhances your trailer's handling and safety, resulting in a smooth ride whether transporting equipment or recreational vehicles
- Easy Installation: With the included U-bolt kits, installation is straightforward, allowing you to easily replace or upgrade your existing trailer axle. It is perfectly fit
- Standard 4x4 Bolt Pattern and 5 Lug Design: Universal 5 lug wheel hub design, using 4 * 4 bolt pattern, compatible with most trailer wheels
Rank No. #8
SPARKWHIZ Trailer Shackle Kit, Tandem Trailer Axle Shackle Kit for Double Eye Springs (3.5K -5.2K Axles)
- 2 x 7-3/4" Long Triangle Equalizer. Easy installation.
- 8 x 9/16" Nylon Bushings, 8 x 2 9/16" Shackle Straps.
- 14 x 9/16"-14 x 3" Long Shackle Bolts & Locking Nuts.
- Made of high-quality materials, durable and corrosion resistant. Suitable for outdoor use.
- If you have any questions about the product, please feel free to contact us.
Rank No. #9
Thomletha 4 Sets Trailer Axle Kits with 4 on 4 Bolt Idler Hub and 1 Round BT8 Spindle
- Specification: Bolt pattern: 4 on 4, Wheel stud size: 1/2 inch diameter x 1-5/16 inch long, Grease cap flange diameter: 1.988 inches, Load-bearing capacity: 2,000 pounds, BT8 is 8.75 in length
- Features: Wheel hub surface with black coating, and dust cap surface zinc-plated, anti-corrosion and anti-rust, long-term service for your trailer
- Includes: 4x 4 on 4 axle seat, 4x 1 BT8 circular spindle, 8x L44643/L44610, 4x 12192TB, 4x rubber plug dust cover, 16x 1/2-20 nuts, 4x cotter pin, 4x spindle nut and gasket
- Quality: Made of good quality alloy steel and rubber and plastic, with strong hardness and long service life
- Note: Please check compatibility and specifications before ordering to avoid buying unsuitable
Rank No. #10
RigsNParts Trailer Idler Hub Kits with 5 on 4.5" Bolt Idler Hub & Round #84 Trailer Axle Spindle Fit for 3500 lb, Sets of 2
- RigsNParts 2 X Trailer Idler Hub Kits 5 on 4.5" for 3500 lbs Trailer Axle Fits 1-1/16'' with 2 X #84 Trailer Axle Spindles
- RigsNParts #84 Spindle with a 1.75" Diameter at Biggest end, Overall length: 8.25", Application: 3500 lbs Trailer Axles, Spindle Capacity: 1750 lbs Per Wheel
- RigsNParts The Package Contains 2 pcs 3500 lbs Trailer Axle Spindle, 2 pcs Cotter Pin, 2 pcs Spindle Nut, 2 Spindle Washers,2 pcs 5 on 4.5" Trailer Hub, 2 pcs L68149 Inner Cone Bearings, 2 pcs L44649 Outer Cone Bearings, 2 pcs 1.719” I.D X 2.565” O.D Grease Seal,2 pcs E Z Lube Grease Cap with Rubber Plugs, 10 pcs Cone Wheel Nuts 1/2”-20 Thread
- RigsNParts Trailer Idler Hub Kits Using Alloy Steel Materials, It Has Superior Corrosion Resistance and Durability.Trailer Hub Packaged in Bubble Boxes, Which can Effectively Avoid Zero Level Collision and Wear During Transportation
- RigsNParts If You Purchase Trailer Hub Spindle Kit That does Not Meet Your Requirements, Please Contact Us in a Timely Manner
Last update on 2026-05-28 / Affiliate links / Images from Amazon Product Advertising API
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- Features: What bells and whistles matter for an trailer axle kit?
- Specifications: How powerful they are can be measured.
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- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their trailer axle kit.
- Product Quality: You don’t always get what you pay for with an trailer axle kit, sometimes less, and sometimes more.
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