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Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118266 Review

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Review of Tow Ready Custom Fit Vehicle Wiring 118266

Today we're going to be taking a look at Part Number 118266. This is the tow-ready vehicle wiring harness. It's going to come with your relays and a 7-way trailer connector. This product fits certain years and models of the Suzuki Equator, Nissan Frontier, Nissan Pathfinder and the Nissan inaudible 00:00:18. The wiring harness is for vehicles without a factory trailer connector. It's going to install very quickly and easily.

You don't have to worry about cutting or splicing any wires during the installation. All you have to do is locate the connection points along the frame rail, plug in the connector, this portion right here, and then this portion right here's going to plug into the back of your new 7-way. It just snaps together like that, very easy to do. This harness right here is going to be the 12-pin connector. This is going to be your relays. They include this which is necessary for a complete installation and to get everything functioning the way it's intended to.

This unit is going to add a 7-way trailer connector to your vehicle. That's going to send power to your trailer. It's going to connect directly to the standard OEM connector which, again, the instructions are going to be included. Those are going to walk you through the installation process step by step and show you exactly where all the connectors are in order to connect this but, again, it does install very quickly and easily. The lid right here is a spring-loaded design for the 7-way connector. It's also going to have the nice gasket right here.

It's going to really limit, if not eliminate, any water from getting into the connector when the lid is in the closed position. It's got the inaudible 00:01:33 on here. This is designed and we also recommend to use a mounting bracket to get this mounted at the rear of the vehicle. That's just going to help you to connect or secure. The custom-fit harness is going to plug into your factory toe package, wiring harness, which is going to be located beneath the rear of your vehicle along the driver's side frame rail.

Again, the instructions are going to point that out really well. Before connecting the actual 7-way itself, you want to plug in the included harness with the relays. These, again, are going to plug into the 12-pin connector at the front of your vehicle. It's got the relay caps included in the little bag. Also in the bag are going to be the zip ties and some foam tape. Now you can use the included cable ties and the foam tape to secure the harness to prevent damage or rattling. Once your installation is complete, the 7-way connector will be stowed beneath the vehicle near the trailer hitch. Again, we do recommend using a mounting bracket. The mounting bracket's going to be sold separately but we do carry those here at Again, that's just going to help keep the connector secure. It's also recommended that you use a small amount of grease on all electrical connections like the plug on your vehicle and the 7-pull connector itself. That's just going to help prevent any type of corrosion to the connection ports but everything that's needed for a complete installation is included. That's going to do it for today's review of Part Number 118266. This is the tow-ready vehicle wiring harness with relays and the 7-way trailer connector. .



The person in this video says that you have to use the relay jumper to compete the installation (the cable with three connections at one end and 1 at the other) but in another video you did for a 2011 pathfinder the relay box is in under the hood and this cable wasn`t required. Am I missing something?

Etrailer Expert

David B.


These two videos are for different items Martin, one is a wire harness the other is for a brake controller. You need both if you are running a trailer with brakes.

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