Whether you're replacing worn brakes, repairing part of your system, or adding brakes to a trailer, we'll help you figure out what you need. Shop electric, hydraulic, and disc brakes, then find the parts to get your trailer stopping safely again.Not sure what you have? Start with the type of brakes on your trailer below.
Trailer brakes can get confusing fast. Brake size, axle capacity, mounting pattern, left or right hand, electric or hydraulic, drum or disc. Getting one detail wrong can mean ordering a part that doesn't fit your trailer.That's why we don't just list trailer brake parts. We install and test these systems, take our own photos and videos, and help neighbors figure out what they actually have before they order. With over 75 years of helping neighbors, 35,000+ installations, and more than 1 million photos and videos, we've worked with brake setups on utility trailers, campers, boat trailers, and more.
How do I know which trailer brakes I have?
Start with the brake type and size. Look at whether you have electric wiring or hydraulic brake lines, then measure the diameter and width of the brake assembly. Your axle capacity, mounting pattern, and any numbers stamped on the existing brake can also help narrow it down. If you're still not sure, send us the information you have and we'll help you identify it.
Do I need to replace the whole brake assembly?
Not always. Pads, shoes, calipers, magnets, and other parts can sometimes be replaced individually. But if several components are worn or damaged, replacing the complete brake assembly can make more sense. Check the condition of your hubs or drums while you're there so you know what actually needs replacing.
What's the difference between electric and hydraulic trailer brakes?
Electric trailer brakes use a signal from the tow vehicle and brake controller to activate the brakes. Hydraulic brakes use pressure created by a surge or electric-hydraulic actuator. If you're replacing existing brakes, you'll usually want to stay with the type of braking system already on your trailer unless you're planning a larger conversion.
How do I know what size trailer brakes I need?
Measure the diameter and width of your existing brake assembly, then check your axle capacity and mounting pattern. Common electric trailer brake sizes include 7", 10", and 12", but size alone isn't enough to confirm a replacement. Matching the brake type, size, axle capacity, and mounting pattern will help you find the right fit.
Can I replace trailer brakes myself?
Many trailer brake assemblies are designed for bolt-on replacement, but what the job involves depends on your brake system. You may also need to work with hubs, bearings, wiring, brake lines, or hydraulic fluid. Check the installation instructions for your specific parts before getting started. If you'd rather leave it to the pros, use our Local Installer Locator Tool to find a trusted service provider near you.
What does a brake controller do?
A brake controller sends a signal from your vehicle to your trailer’s brakes so they activate together when you slow down. This keeps your trailer from pushing your vehicle and improves control.
What brakes should I use on a boat trailer?
Hydraulic drum and disc brakes are common choices for boat trailers. Disc brakes have fewer moving parts and are easier to inspect, while hydraulic drum brakes can be a more economical option. If your trailer regularly goes into saltwater, look for corrosion-resistant components designed for marine use.
Still Not Sure What You Have?
Tell us about your trailer and what you're seeing on the brake assembly. If you have a part number, brake size, axle capacity, or a few photos, that can help. Call, chat, or send us a message and we'll help you figure out what fits before you order.
