A strong trailer axle-and-wheel choice matches your trailer’s capacity, hub-face and spring-center measurements, and bolt pattern; complete kits suit owners replacing running gear, while axle beams suit buyers assembling a simpler setup. The Salo 7,000 lb Tandem Kit leads this lineup with two electric-brake axles, suspension hardware, and mounted tires and wheels, rated for 14,000 lb total capacity. Other options range from a 5,200 lb tandem kit and a 3,500 lb single-axle kit to standalone 2,000 lb beams.
These products are not interchangeable just because their capacities look similar: dimensions, lug patterns, brake or idler configuration, and included hardware differ. Check your existing trailer measurements and load requirements before choosing; the strongest match is the one that fits your frame and intended running gear.
The Salo 7,000 lb Tandem Kit is the strongest all-around choice for buyers who need complete running gear and wheels. It includes two electric-brake axles, suspension components, and ST235/80R16 radial tires mounted on 8-lug wheels, with 14,000 lb total capacity. Its 95-inch hub face and 80-inch spring center make it a specific fit, not a universal replacement, so verify those measurements and its 8 on 6.5-inch bolt pattern against your trailer before ordering.
Our Top Picks
Best OverallComplete kit combines two 7,000 lb electric-brake axles, suspension hardware, and mounted ST235/80R16 tires and wheels for 14,000 lb total capacity.
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Best 6-Lug KitComplete tandem running gear includes electric-brake axles, suspension parts, and mounted ST225/75R15 tires on 6-lug wheels, rated for 10,400 lb total.
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Best Single-Axle KitProvides a Dexter 3,500 lb idler axle plus springs, hangers, U-bolts, and mounted ST205/75R15 tires and wheels for a single-axle setup.
View on Amazon- Best Idler Axle Getanye 3,500 lb Axle
Compare Trailer Axles and Wheel Packages
| # | Product | Weight | Buy |
|---|---|---|---|
| 1 | 1. Salo 7,000 lb Tandem KitBest Overall | — | View on Amazon |
| 2 | 2. Salo 5,200 lb Tandem KitBest 6-Lug Kit | — | View on Amazon |
| 3 | 3. Johnson Dexter Idler KitBest Single-Axle Kit | 150 lb | View on Amazon |
| 4 | 4. Getanye 3,500 lb AxleBest Idler Axle | 57.2 lb | View on Amazon |
| 5 | 5. Jecoupoon 3,500 lb Axle85-inch hub-face axle replacements | 61.6 lb | View on Amazon |
| 6 | 6. Thomletha 2,000 lb 5-Lug BeamLight-trailer axle beam projects | 34.8 lb | View on Amazon |
| 7 | 7. Thomletha 2,000 lb 4-Lug BeamLight-duty four-lug axle swaps | 36.2 lb | View on Amazon |
Detailed Reviews: Best Trailer Axles And Wheels
Why it ranks #1: Complete kit combines two 7,000 lb electric-brake axles, suspension hardware, and mounted ST235/80R16 tires and wheels for 14,000 lb total capacity.
A complete tandem running-gear package combines two 7,000 lb electric-brake axles with pre-mounted ST235/80R16 radial tires, giving builders a coordinated set of major rolling and suspension components. Its 14,000 lb total capacity suits tandem utility, cargo, boat, landscape, and dump trailers that match the stated frame dimensions.
The 95-inch hub face and 80-inch spring center are specified for 82-inch-wide trailer frames, while the 8-on-6.5-inch bolt pattern identifies the wheel interface. Two electric-brake axles, double-eye leaf springs, U-bolts, hangers, equalizers, and shackles bring suspension and tandem hardware together, reducing the need to source those pieces separately. The radial tires arrive mounted on 8-lug wheels, so the kit also covers the wheel-and-tire portion of a compatible running-gear build.
- Two 7,000 lb electric-brake axles provide 14,000 lb total listed capacity.
- Includes double-eye leaf springs and tandem suspension hardware.
- Includes U-bolt kits, hangers, equalizers, and shackles.
- ST235/80R16 radial tires come mounted on 8-lug wheels.
- Requires a matching 95-inch hub face, 80-inch spring center, and 8-on-6.5-inch wheel pattern.
Skip it if you need a single axle, a lower-capacity setup, or a different hub-face and spring-center combination; this kit's listed dimensions and tandem configuration are specific.
Choose this kit for a tandem trailer build that needs electric brakes, suspension hardware, and mounted tires together. Its 14,000 lb total capacity and specified frame and wheel dimensions set the boundaries for a suitable installation.
Full product details
| Brand | Salo Trailer Parts |
|---|---|
| Item model number | STP-Tandem 7k Brake Axle Kit |
| Manufacturer | Rockwell American | Dexter Axle |
| Part Number | STP-Tandem 7k Brake Axle Kit |
| Model | STP-Tandem 7k Brake Axle Kit |
Why it ranks #2: Complete tandem running gear includes electric-brake axles, suspension parts, and mounted ST225/75R15 tires on 6-lug wheels, rated for 10,400 lb total.
A 5,200 lb rating per axle and 10,400 lb tandem capacity give this kit a clearly defined role in compatible trailer builds. It pairs electric-brake axles with a full suspension kit and mounted ST225/75R15 radial tires, covering key running-gear components for a trailer with the specified dimensions.
The 89-inch hub face and 74-inch spring center are listed for most 76-inch-wide trailer frames, making those measurements central to checking the chassis layout. Its 3-inch axle tube and 6-on-5.5-inch bolt pattern further specify the axle and wheel setup. Electric-brake axles come with leaf springs, U-bolts, and hangers, while the ST225/75R15 radial tires arrive mounted on 6-lug wheels; together, these components simplify sourcing a tandem suspension and rolling package.
- Two 5,200 lb axles provide 10,400 lb total listed capacity.
- Includes electric-brake axles and a full suspension kit.
- Includes leaf springs, U-bolts, and hangers.
- ST225/75R15 radial tires are mounted on 6-lug wheels.
- The 6-on-5.5-inch bolt pattern and specified axle dimensions limit wheel and frame compatibility.
Skip it if you need 8-lug wheels, a 7,000 lb axle rating, or dimensions other than 89-inch hub face and 74-inch spring center.
This is a practical match for a tandem trailer needing electric brakes, suspension pieces, and mounted radial tires in one package. Check the 76-inch frame guidance, axle measurements, and 6-lug pattern against the trailer before choosing it.
Full product details
| Brand | Salo Trailer Parts |
|---|---|
| Item model number | STP-5200-T-DB-RGK-655-8974 |
| Manufacturer | Rockwell American | Dexter Axle |
| Part Number | STP-Tandem 5.2k Brake Axle Kit |
| Model | 5200 lb Tandem Dual Electric Brake Trailer Axle Running Gear Kit |
Listed on Amazon as: 5200 lb Tandem Trailer Axle Kit, 89 in Hub Face, 74 in Spring Center, 6 on 5.5 Bolt Pattern, Electric Brake Axles, Running Gear Kit
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#3 · Best Single-Axle Kit
3. Johnson Dexter Idler Kit
- Weight: 150 lb
Best for: Single-axle idler trailer rebuilds.
Why it ranks #3: Provides a Dexter 3,500 lb idler axle plus springs, hangers, U-bolts, and mounted ST205/75R15 tires and wheels for a single-axle setup.
A Dexter 3,500 lb idler axle anchors this single-axle running-gear kit, and mounted ST205/75R15 radial tires bring the wheel setup along with it. The combination serves utility, cargo, and landscape trailers rated up to 3,500 lb when the stated frame dimensions and bolt pattern match.
The 95-inch hub face and 80-inch spring center are specified for 82-inch-wide trailer frames, giving buyers concrete chassis dimensions to work with. The kit includes the idler axle with hubs, bearings, and lug nuts, plus double-eye leaf springs, a U-bolt kit, and a single-axle hanger kit. ST205/75R15 radial tires mounted on 5-lug wheels complete the rolling package. As an idler setup, it is distinct from an electric-brake axle kit.
- Dexter 3,500 lb idler axle includes hubs, bearings, and lug nuts.
- Includes double-eye leaf springs and a single-axle hanger kit.
- Includes a U-bolt kit for the suspension assembly.
- ST205/75R15 radial tires come mounted on 5-lug wheels.
- This is an idler axle kit, not an electric-brake axle setup.
Skip it if you need electric brakes; the Salo Trailer Parts 5200 lb Tandem Trailer Axle Kit includes electric-brake axles for a tandem build.
Choose this kit for a single-axle trailer rated up to 3,500 lb when you want the axle, suspension components, and mounted tires together. Its idler configuration and specified frame dimensions are key limits to account for.
Full product details
| Brand | Johnson Trailer Parts |
|---|---|
| Item Weight | 150 pounds |
| Item model number | D359580-IDLKIT-WT-USA |
| Manufacturer | Dexter Axle |
| Part Number | D35IDLERKIT-WT-JTP |
| Model | Dexter D35 Idler Running Gear Kit with Wheels and Radial Tires |
Listed on Amazon as: Dexter 3,500 lb Idler Trailer Axle Kit – 95” Hub Face / 80” Spring Center – 5 on 4.5 Bolt Pattern – Includes Leaf Springs, U-Bolt, Hanger Kit & ST205/75R15 Tires & Wheels – Made in USA
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#4 · Best Idler Axle
4. Getanye 3,500 lb Axle
- Weight: 57.2 lb
Best for: 3,500 lb five-lug replacements.
Why it ranks #4: This 3,500 lb idler axle specifies an 85-inch hub face, 70-inch spring center, and 5×4.5 bolt pattern for light-duty trailer use.
An 85-inch hub face, 70-inch spring center, and 5×4.5-inch bolt pattern give this 3,500 lb idler axle a precise fit profile. The listed 72-inch-wide frame design covers light-duty utility, boat, car-hauler, ATV, lawn and landscape, motorcycle, cargo, enclosed, and RV trailer applications.
Its 85-inch hub face and 70-inch spring center define the axle's placement dimensions, while the 5×4.5-inch pattern specifies the five-lug wheel interface. A 3,500 lb capacity and stated 72-inch-wide frame design identify its light-duty use. The product description also lists powder coating for protection against the elements and secure mounting. This is an idler axle listing, so buyers seeking electric-brake axles should distinguish it from brake-equipped running-gear kits.
- 3,500 lb capacity is specified for the idler axle.
- 85-inch hub face and 70-inch spring center define fit dimensions.
- 5×4.5-inch bolt pattern specifies a five-lug wheel interface.
- Powder coating is listed for protection against the elements.
- This listing is for an idler axle, not an electric-brake axle.
Skip it if you need electric brakes; the Salo Trailer Parts 5200 lb Tandem Trailer Axle Kit lists electric-brake axles and suspension components.
Choose this axle for a light-duty trailer whose frame and wheel setup match the 72-inch design, 85-inch hub face, 70-inch spring center, and five-lug pattern. Its idler configuration is the key boundary for brake-equipped builds.
Full product details
| Brand | Getanye |
|---|---|
| Item Weight | 57.2 pounds |
| Item model number | Trailer Axle |
| Manufacturer | Getanye |
| Part Number | Getanye 85" Hub Face 5 Lug Hubs |
| Model | Trailer Axle |
| Package Dimensions | 90.55 x 6.89 x 6.89 inches |
Listed on Amazon as: 3500lbs Trailer Axle, 85HF 70SC, 5×4.5 Bolt Pattern, 5 Lug Trailer Cargo Dump RV Utility Axle 3.5K Boat Axle – 85" Hubface 70" Spring Center
View on AmazonWhy it ranks #5: A standalone 3,500 lb axle with an 85-inch hub face, 70-inch spring center, and 5 on 4.5-inch bolt pattern; wheels and suspension are not listed.
An 85-inch hub face paired with a 70-inch spring center gives this 3,500 lb axle a specific dimensional profile for replacement or trailer-build work. Its 5-on-4.5-inch bolt pattern supports five-lug wheel compatibility, with the listed package centered on one axle rather than a full running-gear kit.
The 85-inch hub face and 70-inch spring center provide two measurements for matching the axle to the trailer, while the 5-on-4.5-inch bolt pattern identifies its wheel interface. With a stated 3,500 lb capacity, it is positioned for trailer setups that fit those specifications. The package description lists one axle, so buyers assembling a complete running gear setup should account separately for any suspension or wheel components not included in the supplied package facts.
- 3,500 lb capacity is stated for the axle.
- 85-inch hub face and 70-inch spring center are specified.
- 5-on-4.5-inch bolt pattern provides a defined wheel interface.
- Package description lists one axle for a focused replacement or build.
- The listed package includes one axle, not a complete suspension and wheel kit.
Skip it if you need springs, hangers, and mounted tires in the same package; the Dexter 3,500 lb Idler Trailer Axle Kit lists those components.
Consider this axle for a trailer project that matches its 85-inch hub face, 70-inch spring center, and five-lug pattern. The listed package is one axle, so plan for any additional running-gear components separately.
Full product details
| Brand | Jecoupoon |
|---|---|
| Item Weight | 61.6 pounds |
| Item model number | Does Not Apply |
| Manufacturer | Jecoupoon |
| Part Number | JE-286034-768402-CU |
| Model | Does Not Apply |
| Package Dimensions | 90.55 x 6.88 x 6.88 inches |
Listed on Amazon as: 3500lb 85 70 Trailer Axle Kit 5 on 4.5" Bolt Pattern
View on AmazonWhy it ranks #6: The 2,000 lb beam has a 47.5-inch hub face and 5-lug configuration, but its spring brackets are supplied unwelded and need welding.
A 47.5-inch hub-face measurement defines this 2,000 lb, five-lug axle beam for light trailer projects. Its listed applications span boat, car, ATV, lawn and landscape, motorcycle, and cargo trailers, while the included leaf spring brackets allow placement to be set for the builder's requirements.
The 47.5-inch hub face is measured from the bottom of one wheel stud to the bottom of the other, providing a specific reference for matching a trailer's wheel spacing. The axle is rated at 2,000 lb and uses a five-lug setup, making it a light-duty option among the listed applications. Leaf spring brackets are included but arrive unwelded, so installation requires welding them in the positions needed for the trailer rather than simply bolting on a finished bracket assembly.
- 2,000 lb axle beam rating suits light-trailer applications.
- 47.5-inch hub face provides a defined wheel-spacing measurement.
- Five-lug configuration is specified in the product title.
- Leaf spring brackets are included for positioning to requirements.
- Leaf spring brackets are unwelded and must be welded during installation.
Skip it if you need a ready-to-bolt-on suspension assembly; the brackets on this axle beam require welding to your chosen positions.
This axle beam suits a light-trailer builder who can position and weld the included spring brackets. Its 2,000 lb rating and 47.5-inch hub-face dimension should guide selection for the intended trailer.
Full product details
| Brand | Thomletha |
|---|---|
| Item Weight | 34.8 pounds |
| Item model number | Does not apply |
| Manufacturer | Thomletha |
| Part Number | MO-1218381-218698-AT |
| Dimensions | 53.15 x 6.69 x 6.69 inches |
| Special Features | Stemless |
| Voltage | 878 volts |
Listed on Amazon as: 2000 lbs Axle Beam 5 Lug Trailer Axle 47.5 inch Hub Face
View on AmazonWhy it ranks #7: This light-duty 2,000 lb beam lists a 56.5-inch hub face and 46.5-inch spring center, but does not include wheels or a complete running-gear kit.
A 56.5-inch hub face and 46.5-inch spring center distinguish this 2,000 lb, four-lug axle beam from other light-trailer options. The measurements give buyers specific wheel and spring-seat references for a compatible boat, car, ATV, motorcycle, cargo, or other listed light-trailer application.
The hub face is measured from the bottom of one wheel stud to the bottom of the other, while the spring-center measurement runs between the centers of the spring seats. Those two dimensions help establish whether this beam matches a trailer's existing layout. Its 2,000 lb rating and four-lug configuration define the intended light-duty setup. The supplied product facts describe an axle beam, so the listed measurements and mounting layout are the key considerations for replacement work.
- 2,000 lb axle beam rating is specified.
- 56.5-inch hub face defines the wheel-stud spacing measurement.
- 46.5-inch spring center gives the spring-seat spacing.
- Four-lug configuration is identified in the title.
- Its 2,000 lb rating limits it to light-duty axle applications.
Skip it if you need a 3,500 lb axle; Getanye's 3500lbs Trailer Axle lists that capacity with an 85-inch hub face and 70-inch spring center.
This beam fits a light-trailer replacement project when the 56.5-inch hub face, 46.5-inch spring center, and four-lug setup match. Its 2,000 lb rating is the boundary for choosing it over a higher-capacity axle.
Full product details
| Brand | Thomletha |
|---|---|
| Item Weight | 36.2 pounds |
| Item model number | Does not apply |
| Manufacturer | Thomletha |
| Part Number | MO-1595537-237361-AT |
| Dimensions | 64.17 x 6.69 x 6.69 inches |
| Special Features | Stemless |
| Voltage | 839 volts |
Listed on Amazon as: Trailer Axle 2000 lbs Axle Beam 4 Lug
View on AmazonAvoiding axle fitment and installation traps
A matching capacity alone does not establish that an axle will fit or install on your trailer. Hub face, spring center, bolt pattern, frame width, and suspension arrangement all matter, and the listings show why: the two 3,500 lb axle options both specify an 85-inch hub face and 70-inch spring center, while the 3,500 lb Dexter kit instead lists 95 inches and 80 inches. The Thomletha 2,000 lb 5-Lug Beam adds an installation detail that is easy to overlook: its leaf spring brackets are not welded and must be welded to suit the buyer’s requirements.
Before choosing, measure the existing axle and spring-seat positions, confirm the wheel bolt pattern, and check whether the listing supplies the parts your installation needs. A near-match can still leave you with incompatible wheels or suspension mounting points.
Complete kits versus axle-only replacements
A complete running-gear kit can reduce parts matching, while a standalone axle leaves more components for the buyer to source. The Salo tandem kits include axles, suspension components, and mounted tires and wheels; the Johnson Dexter Idler Kit also lists springs, a hanger kit, U-bolts, and mounted tires and wheels. By contrast, the Getanye and Jecoupoon listings describe axle-only products, and the Thomletha products are axle beams rather than complete kits.
That distinction matters when replacing a whole setup: an axle beam does not by itself supply tires, wheels, springs, or hangers. A kit may be the more straightforward starting point when its dimensions and included parts match your trailer.
An axle-only listing may better suit a buyer who already has compatible running gear, but verify what is and is not included before planning installation.
How to Choose Trailer Axles and Wheels
Capacity and axle count
Choose capacity based on your trailer’s required load rating and whether you need a single or tandem setup. These listings span 2,000 lb beams, 3,500 lb single axles, a 5,200 lb tandem kit rated for 10,400 lb total, and a 7,000 lb tandem kit rated for 14,000 lb total. Do not treat the highest figure as automatically suitable: the capacity must correspond to the trailer design and intended load, and a higher-capacity axle may have different dimensions and hardware.
Light-duty applications may favor a 2,000 lb beam or 3,500 lb axle; buyers replacing a tandem setup may look to one of the tandem kits, provided its measurements match.
Hub face, spring center, and bolt pattern
Match all three dimensions and patterns to your trailer and existing wheels before selecting an axle. The options range from the Thomletha 5-Lug Beam’s 47.5-inch hub face to the 95-inch hub face on the Salo 7,000 lb Tandem Kit and Johnson Dexter Idler Kit. Spring-center measurements include 70 inches on the 3,500 lb axle options, 74 inches on the Salo 5,200 lb Tandem Kit, and 80 inches on two other kits.
Bolt patterns also vary: listed choices include 5 on 4.5 inches, 6 on 5.5 inches, and 8 on 6.5 inches. Buyers replacing a measured, known setup should prioritize an exact match; those building a trailer should confirm the frame and wheel specifications first.
Included running-gear components
Check whether the listing supplies only an axle or the wheels, tires, and suspension parts needed for your project. The Salo tandem kits include suspension hardware and mounted tires and wheels, while the Johnson Dexter Idler Kit lists an axle, springs, U-bolts, hangers, and mounted tires and wheels. The Getanye and Jecoupoon products list axle specifications without a comparable complete parts package, and the Thomletha products are axle beams.
A buyer replacing an entire running-gear assembly may favor a complete kit, assuming its dimensions fit. Someone retaining serviceable wheels or suspension may prefer an axle-only option, but should confirm hubs, bearings, brakes, and other required parts are included or compatible; the listings do not establish every installation detail.
Which trailer axle and wheel setup should you choose?
Choose the Salo 7,000 lb Tandem Kit if you need a complete electric-brake tandem setup with mounted wheels and tires and its 95-inch hub face, 80-inch spring center, and 8-lug pattern match your trailer. For a lower-capacity tandem replacement, the Salo 5,200 lb Tandem Kit supplies a complete package rated for 10,400 lb total, with 89-inch hub face, 74-inch spring center, and 6-lug wheels. For a complete single-axle idler setup, consider the Johnson Dexter Idler Kit, rated at 3,500 lb.
Buyers seeking a standalone 3,500 lb axle can compare the Getanye 3,500 lb Axle and Jecoupoon 3,500 lb Axle by fitment. The Thomletha beams suit 2,000 lb applications, but check their differing hub-face dimensions and installation requirements.
Related Buying Guides
Frequently Asked Questions
How do I measure hub face and spring center on my trailer?
Measure the hub face from one axle hub mounting face to the other, and the spring center from the center of one leaf spring to the center of the other. Compare both measurements with the replacement axle’s listed dimensions. Also verify bolt pattern and suspension arrangement; matching capacity alone does not confirm fit.
How much axle capacity should I allow for a loaded trailer?
Base capacity on the trailer’s fully loaded weight, including cargo, and confirm that the axle rating suits the load it will carry. For tandem setups, consider the stated total capacity as well as each axle’s rating. Do not assume a replacement with a higher rating will fit without checking dimensions and other components.
Can I replace an idler axle with an electric-brake axle?
Yes, if the replacement’s dimensions, capacity, bolt pattern, and suspension fit your trailer, and the trailer can support the brake installation. Electric brakes also require compatible wiring and controls. Check these requirements before ordering; a brake axle is not a direct fit solely because its capacity matches the idler axle.
What should I check besides axle capacity before ordering?
Check hub-face and spring-center measurements, bolt pattern, wheel-lug configuration, and whether the package includes the suspension parts, wheels, and tires you need. For example, the Salo tandem kits have different dimensions and lug patterns. Compare each listed detail with your trailer rather than relying on the product’s capacity alone.
Should I choose a complete kit or a standalone axle beam?
Choose a complete kit when you need the included running gear or suspension components, and check whether it also supplies mounted wheels and tires. A standalone axle beam may suit a replacement where the existing components will be reused. The products here vary in what they include, so confirm the title and fitment details.
Final Words
For a complete tandem electric-brake setup with mounted wheels and tires, the Salo 7,000 lb kit is the strongest all-around choice only when its 95-inch hub face, 80-inch spring center, and 8-lug pattern match your trailer. Consider the 5,200 lb tandem kit for a lower-capacity complete package, or the 3,500 lb idler kit for a single-axle setup. For standalone beams, compare dimensions and installation needs carefully.


