RV Brake Assemblies

8 products

Electric drum brakes are the standard braking system on most travel trailers and fifth wheels, activated by a brake controller in the tow vehicle when you apply the truck's brakes. Worn brake shoes, failed magnets, or damaged drums reduce braking effectiveness and should be replaced promptly when they reach the end of their service life.

Brake assemblies are sold as left hand and right hand units and need to be replaced in matched pairs per axle. This collection covers 10"" and 12"" electric drum brake assemblies from Lippert and Dexter in both left and right hand configurations, with self-adjusting designs that reduce the need for manual adjustment over time.

Before ordering, confirm your axle weight rating, drum diameter, and which side you need to ensure the correct fit for your trailer.

Do travel trailers have brakes?

Yes. Most travel trailers over 3,000 lbs GVWR use electric drum brakes on each axle, activated by a brake controller in the tow vehicle. Smaller utility trailers may rely on surge brakes instead. If you are replacing worn components, confirm your axle rating (typically 3,500, 5,200, 6,000, or 7,000 lbs) and drum diameter (10" or 12" being most common) before ordering a brake assembly.

How do I know which RV brake assembly fits my trailer?

Match three specs: axle weight rating, drum/backing plate diameter, and left vs. right hand orientation. The axle rating is stamped on the axle tube or listed on the trailer's VIN sticker. Brake assemblies in this collection are sold by size (10" x 2-1/4", 12" x 2", 12" x 3-3/8") and as left or right units, so order them in pairs per axle. Confirm your model number before ordering to make sure you get the correct fit.

How often should RV trailer brakes be replaced?

Inspect shoes, magnets, and drums every 12,000 miles or once per season, whichever comes first. Magnets that read outside 3.2 ohms, shoe linings under 1/16", or scored drums all signal replacement time. Full-timers towing in mountain terrain wear linings faster than weekend campers on flat highways. While you have the drums off, it is also a good time to check wheel bearings and seals, see our RV winterizing kits if you are storing the rig afterward.

What else should I check when servicing my RV brakes?

A complete brake job is a good chance to verify the rest of the towing electrical and chassis side. Test the brake controller output, inspect the 7-way connector pins for corrosion, and confirm the breakaway switch and battery still function. Browse RV electronics for controllers and testers, or RV plug adapters if your tow vehicle and trailer use different connector styles.

Does United RV Parts offer free shipping on brake assemblies?

Yes. Orders over $100 ship free within the contiguous U.S., which covers most brake assembly pairs and complete axle sets in this collection. Need help confirming fitment before you order? Text or call our team at 817-984-1852.