What is a 4 Wire Trailer Wire?
4 wire trailer wire is an integral part of any trailer’s electrical structure especially, the braking and safety systems. Nowadays, trailer wiring is without a doubt the most vilified facet of trailer mechanics. If you own a trailer or any other type of automobile, you certainly understand all the challenges associated with diagnosing wiring problems.
This type of trailer wire is commonly referred to as the 4 core trailer wire. Essentially, it is a 4-way wire that connects and provides lighting to the tow vehicle. Without this wire, there will be no running lights, turn lights, and brake lights for the trailer. This wire plays a vital role in safeguarding your security as your drive your trailer on the road.
What Is The Color Code For 4 Wire Trailer Wire?
As I mentioned earlier, a 4 core trailer wire connects your trailer’s running lights, turn lights, and brake lights. The wire’s color code offers guidance on where a specific wire goes and what it does. Your connection will not function appropriately if you don’t interpret the color code correctly. Each conductor in the 4 conductor trailer wire has a specific color. What are the colors of a 4 core trailer wire, and what does each color mean?
The four colors that make up your 4 wire trailer cable’s color code are brown, green, yellow, and white. Each color in a 4 wire trailer wire has a specific function.
Brown wire- connects the tail or parking lights
Green wire- connects the right turn signal and the brake lights
Yellow wire- links to the left turn signal and brake lights
White wire- links to the common or chassis ground
How To Wire 4 Wire Trailer Wire?
Four wire trailer wiring can be pretty menacing, especially if you are not a trained electrician. Like most people, you might not be an electrician, but that does not mean that wiring your trailer by yourself is impossible. Thanks to the elaborate color coding of trailer cables, you can easily wire your trailer. You don’t have to hire a trained electrician. Once you’ve mxastered the color coding of a 4-wire trailer wire, the rest is pretty straightforward. Before starting the connection, there are a few essential things you need to know.
What wire gauge is appropriate for a trailer wire 4-way cable? Similar to other electrical wire types, a small gauge trailer wire might not withstand the amount of current running through it. If a wire cannot withstand the electric current, there is a significant chance that a short circuit will occur. You don’t want that to happen, do you? So, you should check and confirm that the trailer wire is the appropriate gauge. Which is the proper wire gauge for your four-wire trailer wiring?
The minimum recommended gauge of a 4 core trailer wire is 18 AWG for the turn lights, brake lights, and running lights. For the ground wire, the recommended size is 16 AWG. Also, it is always important to check your vehicle’s owner manual for insights before connecting the 4 wire trailer wire. The image below will guide you on how to wire a conventional 4-way harness and a 5 wire to 4 flat-connector.
Why Choose 4 Wire Trailer Wire in a PVC Jacket?
Our trusted trailer wire comes coated in a PVC jacket. This helps protect the wire within from outdoor conditions, oils, chemicals and more. The PVC is color-coded for additional organizational benefit, and to make trailer wiring projects easy.
4 Wire Trailer Wire That Meets Your Exact Specifications
HuaDong Cable is here to provide high-quality trailer wire for your automotive, electrical, construction, and marine projects, and more. If you need a custom solution, our team is here to help. Read about our custom services and tell us what you need.
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