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A trailer with brakes being installed.
A trailer with brakes being installed.

Trailer Components

Every trailer depends on the parts underneath it. From brakes and bearings to axles and suspension, keeping these components in top shape means smoother towing and safer stops. If your trailer pulls unevenly or feels rough, it’s time for a tune-up. Choose replacements that fit your axle capacity and load needs to restore balance, control, and long-term reliability.

Parts for Under the Trailer

Other Popular Components

Articles & Guides

Highly Rated Brands

Need Help Choosing or Maintaining Trailer Components?

For more than 75 years, etrailer has helped people keep their trailers safe and dependable. We carry proven brands like Dexter, Kenda, and Fulton and back them with clear fit information and real installation photos. From brake assemblies to jacks and fenders, you will find parts that last and guidance that makes every repair straightforward. Trust etrailer to keep your trailer ready for the work, the weekend, and everything in between.

How do I know which trailer components I need?

The best way to find the right trailer components is to start with your trailer’s GVWR and axle capacity. These tell you which brakes, hubs, and bearings will fit. Check the ID tag on your trailer frame or axle tube for size and weight information. If you’re replacing parts, compare measurements or part numbers. etrailer’s fit guides, specs, and real photos make it easy to match the right setup.

Can I replace my own trailer axle?

Yes. Replacing a trailer axle is a project most trailer owners can tackle with the right tools and a safe work area. Before ordering, confirm the axle’s weight rating, hub-face length, and spring-center distance. etrailer product listings include measurements, diagrams, and install videos to help you get the perfect fit.

What parts come in a trailer suspension kit?

Most trailer suspension kits include equalizers, shackles, bushings, and bolts. These work together to balance your trailer’s load and smooth out rough roads. If your ride feels bumpy or your tires wear unevenly, upgrading your suspension parts can restore stability and comfort.

What are the signs my trailer brakes need service?

If your trailer brakes feel weak, make grinding noises, or pull unevenly, they may need service. For electric brakes, inspect the wiring and check your brake controller settings. For hydraulic brakes, look for leaks or worn seals around the actuator. Regular inspection keeps your braking smooth and safe.

How can I keep my trailer components in good condition?

Inspect your trailer before every trip. Check brake function, grease your bearings, and torque your lug nuts. Replace worn seals and re-grease hubs as needed. When storing your trailer, park it on level ground and use a cover to protect against moisture and corrosion. Small steps like these extend the life of your components and keep your trailer ready for the next haul.