Heavy Duty 4 Wire Trailer Wire

  • According to UL Standard
  • PVC &PVC Sheath
  • Approved by CE, UL
  • Place of Origin: Henan, China
  • Number of Cores: 4
  • HS Code: 8544492100
  • MOQ: 1000 Meters
  • Low Voltage

4 way trailer wire is four conductors or wires used for trailer lighting control, and each wire is color-coded for functional differentiation. Typically consisting of copper conductor and PVC insulation, 4 trailer wire is wear-resistant and durable. Compared to 7 way trailer wire, 4 way trailer wire is easier to operate. If you want to check out 4 way trailer wire near me, ZW’s 14 gauge 4 conductor trailer wire is your preferred choice.

4 way trailer wire specification:

  • 4-way trailer wire gauge: 14 gauge,  12 gauge
  • Diameter:11mm
  • Insulation: PVC
  • Insulation Color: Green, Yellow, Brown, White
  • Sheath Color: Black
  • Test Voltage:2.0KV/5Min
  • Temperature Range: Max 90°C, Min -10 °C

FAQ about 4 Way trailer Cable

To wire a 4-way flat trailer connector, you need to connect the four wires to the corresponding trailer lights according to the 4 wire trailer wire color code. The colors of the wires usually correspond to their function:

  • White Wire: Ground
  • Brown Wire: Tail lights and running lights
  • Yellow Wire: Left turn and brake lights
  • Green Wire: Right turn and brake lights

For 4 pin trailer wiring diagram, view: Trailer Wire Colors Guide: Colors And Functions

Of course, the trailer wires should be long enough to connect your vehicle to the trailer, but not too tight or too slack. Wire stretched too tight will be susceptible to damage due to the strain, while the overly slack 4 wire trailer wire might sag and scrape against the ground, which can also cause harm.

If your 4-core trailer wire isn’t functioning correctly, the problem could be a loose connection, blown fuse, or damaged wire. First, check the connections on both sides of the vehicle and trailer to see if there are damaged wires, loose connections, or corroded terminals. If not, test the connections with a circuit pen to check the tail signal, left turn/brake lights, right turn/brake lights, ground connections, and most importantly, the ground. If you can’t identify or fix the problem, seek the help of a professional such as ZW Cable.

Scroll to Top
Get in touch with us today and see how we can help you reach your goals!