Perfect Four Wire Trailer Wiring

In this video we will explain and show the difference between the lighting operation of a 5 wire trailer and a 4 wire trailer.

Four wire trailer wiring. The colors for wiring a 7 way connector are as follows with the 4 colors of the 4 way connector remaining the same. What size wire gauge is used for a 4 way wiring harness. The four wires control the turn signals brake lights and taillights or running lights.

The most common 4 wire connector is the 4 pin flat connector as shown here. It shows the components of the circuit as streamlined shapes and the power and signal connections between the devices. Green right turn brake remember green has an r in it.

We will also explain how to w. 4 way trailer wiring 4 way trailer connectors are typically used on small trailers such as boat snowmobile utility and other trailers that that do not use brakes. As the name implies they use four wires to carry out the vital lighting functions.

Right turn signal stop light green left turn signal stop light yellow taillight license side marker brown and a ground white. You must check the trailer manual to see if the wiring is correct but normally the white wire is called the ground wire while the brown wire is used for tail lights. Some manufacturers will use red black wires instead of brown green yellow.

Start by cutting the white wire and attaching it to the trailer frame. Assortment of 5 wire to 4 wire trailer wiring diagram. Trailer wiring diagrams 4 way systems.

Woftd 4 way trailer wiring harness with 5 ft wires 4 pin trailer wiring jacketed cable 4 flat trailer wire extension connector 5 ft. Installing the 4 pin trailer wires. The suggested minimum for the ground wire is 16 gauge.