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 How to Reduce the Weight of Your Wiring Harness

How to Reduce the Weight of Your Wiring Harness

A wiring harness is a system of cables and wires that deliver electrical power or signals in your vehicle. The main purpose of a wiring harness is to route the electrical current smoothly and efficiently throughout your car. However, the wiring harness can be weighed down by dirt, grease, and another build-up. It can cause electrical problems and decreased fuel economy. Luckily, you can take a few simple steps to reduce the weight of your wiring harness.

1. Inspect Your Wiring Harness Regularly

While most custom wiring harnesses are designed to be as light and efficient as possible, there are always ways to reduce their weight even further. One of the simplest ways to do this is to regularly inspect your wiring harness for any damage or unnecessary bulk. Look for any frayed wires or loose connections.

If you find any damaged wires, remove them and either repair them or replace them with lighter gauge wires. You should also look for areas where the wire is unnecessarily thick or bulky and trim it down as much as possible. Regularly inspecting and trimming your custom wiring harness can ensure that it remains as light and efficient as possible.

American Auto/Marine Wiring, a company that offers complete custom wiring and automotive wiring harness, affirms that regularly inspecting your wiring harness is the key to maintaining it in good condition.

2. Use Lighter Gauge Wires

Many wiring harnesses are made with heavier gauge wires than necessary, adding considerable weight to your vehicle. If you want to save weight, consider using lighter gauge wires in your wiring harness. Just be sure that the lower gauge wire can handle the current draw of your electrical system.

3. Use High-Quality Materials

To keep your wiring harness as light and efficient as possible, it is important to use high-quality materials. Make sure to use lightweight yet durable wires and connectors. Also, avoid using unnecessary materials, such as plastic tubing or zip ties. High-quality materials can keep your wiring harness light and reduce the risk of electrical problems.

4. Apply Dielectric Grease to Your Wiring Harness

When it comes to reducing the weight of your wiring harness, one of the best things you can do is apply dielectric grease to all connections. Dielectric grease is a non-conductive, water-resistant grease that helps to protect electrical connections from corrosion. It also helps to keep dirt and moisture out of the connection, which can add weight and cause problems.

5. Use a Wiring Harness Cover

One way to reduce the weight of your automotive wiring harness is to use a wiring harness cover. A wiring harness cover helps to protect the wires from damage and also helps to keep them organized. By using a wiring harness cover, you can reduce the amount of time that you spend sorting through and organizing your wires. In addition, a wiring harness cover can also help to reduce noise and vibration. Using a quality wiring harness cover, you can keep your automotive wiring looking and working like new for years to come.


There are several ways to reduce the weight of your wiring harness. You can save money and time in the long run by using lighter gauge wire, eliminating unnecessary components, and using lighter-weight connectors. In addition, by carefully routing the harness and using support where needed, you can further reduce the weight of the overall system. By following these tips, you can ensure that your wiring harness is safe and efficient.

At American Auto/Marine Wiring, we offer custom wiring harness, automotive wiring harness, and marine wiring. Contact American Auto/Marine Wiring today for more information.