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Tuesday, August 9, 2022

Important Trailer Components to Check and Maintain

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As anyone who has ever towed a trailer knows, it is important to ensure that your trailer is in good condition. Not only does this help to ensure that your trailer will last for many years, but it also helps to keep your vehicle in good condition. After all, your trailer is attached to your vehicle and if it is not properly maintained, it can cause damage to your vehicle.

Getting your trailer periodically serviced is important to ensure its safety and functionality. Failure to do so can result in accidents, poor towing, increased vehicle wear and tear, increased fuel consumption and potential fines and defects from the police.

If you’re looking at used car trailers for sale, carrying out these checks or getting an inspection from an independent mechanic is essential before buying.

To help out, we’re going to have a look at the most important trailer parts to inspect and maintain.


Trailer tyres are designed to withstand a lot of wear and tear, but they still need to be regularly checked and maintained in order to keep them in good condition. Checking the tyres is especially important if the trailer has been in storage or has been unused for a long period of time. Here are a few things to keep in mind when it comes to trailer tyres:

  • Check the tyres regularly for signs of wear and tear, such as cracks, bald spots, bulges or flat spots
  • Keep the tyres inflated to the proper pressure level
  • When replacing tyres, be sure to get ones that are rated for the weight of the trailer
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Tow hitch and connections

If you’re planning on doing any towing with your vehicle, it’s important to make sure that your trailer tow hitch is in good condition.

It’s important to check the condition of the hitch itself. Look for any cracks or damage that could weaken the hitch. Also, make sure that all the bolts are tight and secure.

You should also check the condition of the trailer ball. This is the part of the hitch that actually attaches to the trailer. Make sure that it is not cracked, damaged or rusted in any way. You should also check on the safety chains to ensure that they are in good condition.

Finally, you’ll want to check the condition of the wiring harness. This is what provides power to the lights on your trailer. Make sure that all the connections are secure and that there are no frayed or damaged wires.


The electrical system in a trailer is one of the most important (and potentially delicate) systems. That’s why it’s important to perform regular checks and maintenance on your trailer’s electrical system, including the lights.

Check all of the bulbs in your trailer’s lights to make sure they are functioning properly. Inspect the wiring for any signs of wear or damage. If you notice any frayed or exposed wires, be sure to replace them immediately. You should also inspect the 7-pin light connector.

It’s also a good idea to test your trailer’s lights on a regular basis, even if they don’t appear to be malfunctioning. This will help you ensure that they are still working properly and help you spot any potential problems before they become major issues. You can do this by either hooking the trailer to the car and testing the brake lights, indicators and reversing lights. Or you can use a trailer light test kit.

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Brakes & suspension

Periodically checking the trailer’s brakes and suspension is also a good idea.

When checking the brake system you should: 

  • Check the brake fluid and top up as necessary
  • Inspect the brake shoes or pads and look for wear
  • Check the drums or rotors for scorching or other damage
  • Inspect the brake lines and hoses for cracks, leaks or other damage
  • If you have electric brakes, check the wiring for cracks or damage
  • If any of these components are worn or damaged, they should be replaced immediately

In addition, it is important to test your brakes regularly to make sure they are working properly. To do this, you can use a trailer tester or have a mechanic service your trailer. If your brakes are not working properly, they should be repaired or replaced as soon as possible.

Your trailer’s suspension system is what keeps your trailer level and comfortable to tow. To ensure that your suspension is always in top condition, it’s important to perform regular checks and maintenance. Here are some things to look for:

  • Check the air pressure in your shocks and air springs regularly
  • Inspect the air lines and fittings for leaks
  • Grease all of the moving parts on a regular basis
  • Check the bolts and fasteners to make sure they are tight
  • Inspect the leaf springs, shock absorbers, and other components for wear or damage.

By following these simple tips, you can keep your trailer in good working order and prevent problems down the road.

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