Buying a used trailer can save you a lot of money, but only if you choose wisely. Some trailers look fine at first but come with hidden problems that cost you later. The last thing you want is to spend your cash on something that needs expensive repairs right away.
If you’re thinking about getting a second-hand trailer, here’s what you need to check before making a deal.
Look for Signs of Rust and Damage
Trailers spend a lot of time outdoors, which means they deal with rain, dirt, and road grime. Over time, this can cause rust, especially on steel frames. A little surface rust isn’t always a big deal, but if the rust is deep or spread over important parts like the frame, axles, or suspension, it could mean trouble. There are some trailer parts and repairs that are easy to do, but others simply aren’t worth it.
Check underneath the trailer, inside any storage compartments, and around bolts and joints. If you see flaking metal, holes, or weak spots, that’s a sign the trailer might not be worth buying.
Check the Frame for Bends or Cracks
The frame is what keeps the trailer strong and stable. If it’s damaged, the trailer won’t tow properly and could even be dangerous on the road.
Look closely for any cracks, bends, or welded spots that look uneven. A trailer that’s been in an accident or overloaded too many times might have weak points that aren’t easy to fix. If something seems off, ask the seller about it—or better yet, move on to another trailer.
Inspect the Hitch and Coupler
The hitch and coupler are what connect the trailer to your vehicle. If they’re worn out or damaged, the trailer could detach while you’re driving, which is extremely dangerous.
Check for rust, cracks, or loose parts. Make sure the coupler locks securely onto a hitch ball. If it doesn’t fit properly or feels wobbly, that’s a problem. A faulty hitch is not only unsafe but also expensive to replace.
Test the Brakes (If the Trailer Has Them)
Not all trailers come with brakes, but if the one you’re looking at has them, make sure they work.
Hook the trailer up to a tow vehicle and test the brakes. If they feel weak or don’t engage smoothly, they might need adjusting or replacing. Also, check the brake wiring and make sure there aren’t any frayed or loose connections.
Check the Tires for Wear and Dry Rot
Even if the tires look fine, old ones can still be a problem. Trailer tires don’t always wear out from driving; sometimes they just sit in one place for too long. This can cause dry rot, which makes the rubber crack and weaken.
Look for cracks on the sides of the tires, uneven tread wear, or any bulging spots. If the tires are in bad shape, you’ll need to replace them before hitting the road.
Make Sure the Lights and Wiring Work
A trailer with broken lights is a ticket waiting to happen. Plus, it’s dangerous to drive at night without working brake lights or turn signals.
Plug the trailer into a tow vehicle and check all the lights—brake lights, turn signals, and running lights. If any don’t work, the wiring might be bad, or the bulbs might need replacing.
Look for exposed wires, rusted connectors, or places where the wiring might be loose. Electrical problems can be a hassle to fix, so make sure everything is working before you buy.
Check the Suspension and Axles
A trailer’s suspension and axles take a lot of stress, especially if it’s been used to haul heavy loads. If these parts are damaged, the trailer won’t tow smoothly and could even be unsafe.
Look under the trailer and check for:
- Bent axles – The wheels should sit evenly. If one side looks lower than the other, the axle could be bent.
- Worn-out leaf springs – If the trailer has leaf springs, make sure they aren’t cracked or rusted.
- Loose or broken bolts – Any missing or damaged hardware is a red flag.
A bumpy or uneven trailer isn’t just annoying—it can also lead to bigger problems down the road.
Look for Water Damage (Especially on Enclosed Trailers)
If you’re buying an enclosed trailer, make sure there’s no water damage.
Check the roof and walls for leaks or soft spots. Look at the floor—if it feels weak or bouncy, there could be hidden water damage underneath. Mold or a musty smell is another sign that moisture has been getting inside.
Water damage is one of the hardest things to fix, so if the trailer has serious leaks, it might not be worth the hassle.
Check for Proper Paperwork
Before buying, make sure the seller has the right paperwork. Depending on where you live, you may need a title, registration, or bill of sale to legally own and use the trailer.
Ask for the VIN (Vehicle Identification Number) and check that it matches the paperwork. If something seems sketchy—like missing documents or a VIN that’s been scratched off—walk away. You don’t want to end up with a stolen or unregistered trailer.
When to Walk Away
If the trailer has minor issues, like old tires or a burnt-out light, those are usually easy fixes. But some problems aren’t worth the trouble. Consider walking away if you find:
- Major rust or structural damage
- A cracked or bent frame
- Serious axle or suspension issues
- Electrical problems that aren’t easy to trace
- Missing or suspicious paperwork
There are plenty of used trailers out there, so don’t settle for one that could cost you more in repairs than it’s worth.
Making the Right Choice
Buying a used trailer is a great way to save money, but only if you take the time to check it properly. A quick inspection can help you avoid costly repairs and make sure you’re getting something reliable.
If you’re ever unsure, it’s worth asking a professional to look at the trailer before you buy. Spending a little extra time now can save you from a big headache later.