Trailer Axle Components
Complete axle assemblies, idler and brake hubs, bearings and races, seals, and spindles — Dexter & comparable. Axles are matched by capacity and measurements, so bring your numbers and the parts counter will spec it.
Axle Components we carry
- Axle Assemblies
- Idler Hubs
- Brake Hubs
- Bearings & Races
- Grease Seals
- Spindles
Don’t see it? We special-order too. .
Find a Part
Let’s Find the Part You Need
Your parts counter
Pick a store to see its parts line and hours. Your request goes straight to that counter.
Tell us what you need
Before you order axle components
A few things to check so the part fits the first time, or just tell us what you’ve got and the parts team will spec it with you.
- Match the capacity
- Axles are rated 3.5k, 6k, 7k, and up. Match your trailer’s GVWR. Never under-spec.
- Measure hub-to-hub
- For a full axle, measure hub-face to hub-face and spring-center to spring-center. That’s what determines fit.
- Read the spindle number
- Hubs, bearings, and seals are keyed to a spindle/bearing number (e.g. L68149, 25580). Read it off the old part.
- Braked or idler
- Tell us whether the axle is braked or idler. It changes the hub, backing plate, and flange.
Axle Components in our catalog
A sample of the trailer axle components in our parts catalog. Tap any part to see the details, then request it from your nearest store.
- Axle 10K General Duty Electric Brake 74x46 4.77 with SpringsDexter
- Axle 10K General Duty Electric Brake 74x47 4.75 DEX with springsDexter
- Axle 10K Heavy Duty Electric Brake 59x38 865 5/8 StudsDexter
- Axle 3.5K Electric Brake 89"x74" 5 on 5 with 1/2" StudsDexter
- Axle 3.5k Electric Brake 95"x80" 5 on 4.5 Dexter Grease LubeDexter
- Axle 3.5K Electric Brake 95"x80" 5 on 5 with 1/2" StudsDexter
- Axle 3.5K Idler 95"x80" 5 on 5 with 1/2" StudsDexter
- Axle 5.2K 73"x58" Electric Brake 6 on 5.5" 1/2" StudsDexter
- Axle 6K Electric Brake 80x64 655 1/2 Studs Ez-LubeDexter
- Axle 6K Electric Brake 95"x80" Grs 655 1/2" StudsDexter
- Axle 7K Electric Brake DX 95" x 80" 865 1/2" StudDexter
- Axle 8K Electric Brake 86"x68" 865 5/8 StudsDexter
This is a sample, not the full catalog. If you don’t see it, .
Axle Components FAQ
- How do I identify my trailer axle?
- Start with the capacity sticker or stamp on the axle tube (most are 3,500, 5,200, 6,000, or 7,000 lb). Then take two measurements: hub face to hub face (the overall width) and spring seat center to spring seat center. With those three numbers — plus whether it's a straight or drop axle — the parts counter can match a replacement.
- What bearings do I need for my hubs?
- Bearing sizes are set by the spindle, not the trailer brand. If you have the old bearings, the number etched on each race identifies them. Otherwise, measure the spindle diameters where the inner and outer bearings ride, or just bring the old bearing and seal to the counter and we'll match the set.
- What's the difference between an idler hub and a brake hub?
- An idler hub is a plain hub for axles without brakes. A brake hub (or hub/drum) has a machined drum surface that the brake shoes press against. If your axle has electric or hydraulic brakes, you need brake hubs; if not, idlers. They're not interchangeable, so check whether there's a brake assembly behind the wheel before ordering.
Need trailer axle components?
Tell us the trailer and the part. The nearest store confirms fit and availability.