etrailer 7 Way Upgrade Kit With Junction Box Installation Video

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

Hey Steven, thanks for reaching out. It may be possible to add brakes to your trailer. The first thing you will want to verify is that your axle has a brake flange. It should look something like part #4-35. If no brake flange is present, they can be…

Hey Zach, congrats on the new trailer! You can either look at the info sticker near the tongue of the trailer to find the weight ratings of each axle or, if you can't find that, there is a sticker in the middle of each axle showing what the…

Hey Chris, thanks for getting in touch. The plug in your picture is known as a 7-way round pin connector. If you are wanting to keep the wiring on the trailer as-is, and you just want to swap out the plug for a standard 7-blade, it will definitely be…

Hello Mike. It sounds like you are wanting to add electric brakes to your boat trailer that currently has no brakes. This is possible, but you will first need to make sure that your axle is equipped with a brake flange at the base of the spindle. The…

The easiest way to go from a 7-way round connector to a 7-way flat would be to get a Trailer Connector Adapter part #HM47425. However, if you are looking for a more permanent solution you would need to remove your 7-way round connector and wire up…

If you don't already have a 4-way wiring harness, we need to start there to get your 7-way. For a 4-way, I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #C56020 which plugs in behind the tail lights of…

Assuming you have the factory 4-flat, the easiest solution is the Ford Replacement OEM Tow Package Wiring Harness, 7-Way (Super Duty) #118243. This includes the necessary fuses and relays which will give you all of the functions you have described…

You can definitely ground your trailer brake assemblies to your trailer frame. This will be just as effective and also will be a much easier install.

Adding a brake controller to your 2013 Nissan Frontier that already has a working 4-pole flat trailer connector is a simple process that requires only two parts. First you will need a brake controller installation kit, part #ETBC7. This kit includes…

Hi Steve; I would use 10 gauge wire #10-1-1 for the brakes instead of 12 gauge. The same butt connectors #DW05745-10 will still work. If you're connecting 3 wires together I would either use a wire nut with plenty of electrical tape or solder…

Are you looking for a wiring harness for the vehicle or the trailer? You normally wouldn't put a 4-way and a 7-way on the trailer as you'd pick one or the other based on if the trailer has brakes. Since yours is going to have brakes you'd…