Replacement 4 pole trailer connector for utility trailer with 5 wire wishbone wiring setup. 34 inch by 1 inch 6 way rectangle connectors right turn signal green left turn signal yellow taillight brown ground white.
Trailer Connector Pinout Diagrams 4 6 Amp 7 Pin Connectors
Trailer wiring colors 4 wire. A simple closed system while its never a good idea to dive into a wiring project blind trailer wiring is actually very simple to work on and troubleshoot. Start by cutting the white wire and attaching it to the trailer frame. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer. Depending on the size of your trailer and the number of lights you might want to check on the internet for the recommended gauge for your specific trailer. Use on a small motorcycle trailer snowmobile trailer or utility trailer. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above.
Installing the 4 pin trailer wires. Mounting your trailer wiring harness. Yellow is for left turn signal and brakes. The colors for wiring a 7 way connector are as follows with the 4 colors of the 4 way connector remaining the same. By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights. 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.
Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. The red and blue wire can be used for brake control or auxiliary. Yellow and green are for left and right turns and braking. Trailer electrical connectors come in a variety of shapes and sizes. Blue electric brakes or hydraulic reverse disable see blue wire notes below in the trailer wiring diagram and connector application chart below use the first 5 pins and ignore the rest. Can trailer 4 way be ran to trailer with 8 wires for trailer wiring.
Can also be used as custom wiring on trailers with 3 lightwire systems. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road. Often the 4 pole trailer connector will remain in the trunk or cargo area of a car or suv when not in use. This diagram shows the colors of a basic trailer wiring setup as well as what each wire is supposed to be connected to. On a 4 way flat connector like the 4 pole 60 inch long vehicle end 18002 that you have referenced white is the ground wirethe brown wire is for the taillightsrunning lights. And improperly connected wiring can cause damage to electric components.
The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. Because wire colors can vary they are not as reliable for determining functions. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing.
Gallery of Trailer Wiring Colors 4 Wire
