Unbelievable 4 Pin Round Trailer Wiring

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4 pin round trailer wiring. 4 5 out of 5 stars 54. The most common 4 wire connector is the 4 pin flat connector as shown here. Most of the time the 4 way connector is wired as follows.

Start by cutting the white wire and attaching it to the trailer frame. These wires would simply be installed in the back side of a 4 way round connector like part pk11409. I had no choice but to install the wiring while my boat was on the trailer and having to work underneath my boat made the job a little more difficult but if your trailer is empty installation is much easier.

It can transfer power better so the connector is suggested for higher level electric in the vehicle. I think i checked all the fuses but appear good. Had difficulty wiring a trailer from a 4 pin to 7 pin so i could use the brakes on the trailer but it ultimately needed to go back to the 4 pin.

Free shipping on orders over 25 shipped by amazon. Curt 58070 vehicle side 4 pin round trailer wiring harness socket. 4 pin flat connector at a minimum all trailers need at least 4 functions.

This is part 3 wh. Looking at the front of the socket on the vehicle side with the cover raised the top left pole is the yellow left turn brake pole the top right pole is the right turn brake pole the bottom left pole is the white ground pole and the bottom right pole is the tail light pole. Installing 4 pin wiring on a trailer is an easy project that takes a few hours or less.

4 7 out of 5 stars 3 456. This is a short video series of the steps that i have taken to refurbish and old utility trailer that was designed and built by my father. Even when using a different trailer that i know is wired correctly.