Hopkins Endurance Easy-Pull 4-Pole Flat Trailer Harness Installation Video

You have what is called a wishbone harness like #A20WB. This type of harness take the running light circuit and splits it at the trailer connector so that you do not have to run a jumper wire from one tail light to the other. The yellow/brown wire is…

The 25 Ft 4-Way Trailer Wiring Harness #A25W2GWB uses 18 gauge wire for the ground wires and 20 gauge wires for the light functions. The Wiring is copper and not aluminum.

A 4-Way flat connector has the white wire for ground, brown wire for running lights, yellow wire for left turn and brake, and green wire for right turn and brake. The Peterson Round Trailer Tail Light, part #431800, is a three function light and has…

We can help you with a replacement 7-way trailer harness for your 16-foot trailer. All such items are shown on the linked page. These include plugs-only, such as #PK12706, which uses your trailer's existing wiring; pigtail plugs like #54006-059…

I have a solution for you to consider, but there are no adapters for a 5-way round. What you can do though is just cut off the 5-way round on your boat trailer and wire in a 5-flat, the 5-Way Flat Trailer Connector #HM47910. Then what you can use for…

It sounds like you're looking for a trailer side 5-way connector but your picture is of a 7-way. If you're looking for a 5-way we have part #HM47910 that has a nylon sleeve covering the wires to protect them. I've linked a video for you…

The blue wire is for brake output power to the trailer brakes. One end connects to the brake controller and the other end goes to the pin in the trailer connector on the vehicle side that is for the trailer brakes. The Adapter 6 Pole to 7 Pole…

If you are referring to two white wires from the brake magnet that are coming from the rear of each electric brake assembly, then it would not matter which wire is connected to ground and which wire is used for the brake feed. The magnet that…

Stripped wire get inserted into the ports on the back of the Optronics Trailer Lights #ST8RB and that is how they are connected. Fast forward to the 2:15 mark of the video I attached to see how this is done.

The 4 pole wiring harnesses we offer for trailers are pretty consistent when it comes to the wire gauge. The right turn/brake, left turn/brake and running lamp circuit wires are typically 18 gauge and the ground wire is typically 16 gauge. This is…

When testing the brown wire on your trailer, all of the tail lights on the trailer should be activated. Since you are using a standard 4-wire harness on the trailer, you will need to make sure that you are using jumper wires to provide running light…

Did you have a 4-pin connector that had 5 wires or was it a 5-pin connector? There is a big difference since you normally see a 5-pin connector on a boat trailer with the 5th pin used for an electric reverse lockout solenoid on a brake actuating…