How To Wire A 3 Pin Trailer Plug

We ll walk you through the wiring process it s easier than you think.

How to wire a 3 pin trailer plug.

Yellow and green are for left and right turns and braking. 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. 4 pin trailer wiring diagram. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing.

There is a lot wiring that you have to tie into your truck s wiring harness but it is easier to do than it seems. Most of us aren t electricians but that doesn t mean wiring a trailer or replacing corroded wiring is beyond us. 1 4 wire the first 4 pins white brown yellow green just like the 4 pin connector above. Wiring a 7 pin plug on your truck can be a little intimidating when you are looking at it from outside the box.

Below is the generic schematic of how the wiring goes. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road. Start by cutting the white wire and attaching it to the trailer frame. 7 way plug wiring diagram standard wiring post purpose wire color tm park light green battery feed black rt right turn brake light brown lt left turn brake light red s trailer electric brakes blue gd ground white a accessory yellow this is the most common standard wiring scheme for rv plugs and the one used by major auto manufacturers today.

Traditional trailer with brakes use a 5 pin connector. Strip the wire end back about a 1 2 inch and insert it into a terminal with a heat shrink tube. Note that this type of 4 pin connector is less common that 4 pin flat connector. How to wire a 7 pin trailer plug by robert moore.

807 3 way flat trailer wire connectors 3 pin traile plug connector 36inch for led brake tailgate light bars hitch light trailer wiring harness extension connector 3 way flat socket 4 3 out of 5 stars 3. One to two feet is good. A 7 way plug connects your trailer and tow vehicle and provides the required lights turn signals brake power battery hot lead reverse lights and ground. Get it as soon as thu sep 24.

Above we have describes the main types of trailer wiring diagrams. This type of connector is normally found on utvs atvs and trailers that do not have their own braking system. Installing the 4 pin trailer wires. Free shipping on your first order shipped by amazon.

The white wire must be attached to the trailer in order to ground and power the lights. Cut the white wire short enough for attachment to the front of the trailer near the connector plug.