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This kit contains everything you need to upgrade from a 4-way, 5-way, or 6-way connector to a 7-way connector. Includes 7-way RV-style trailer connector, junction box, wire loom, and hardware.
Features:
Specs:
| Wiring Code | ||
|---|---|---|
| Molded Connector | Function | Usual Trailer Wire |
| White Wire | Ground | White Wire |
| Red Wire | Left Turn and Brake | Yellow Wire |
| Brown Wire | Right Turn and Brake | Green Wire |
| Green Wire | Tail Lights | Brown Wire |
| Blue Wire | Brake Power | Blue Wire |
| Black Wire | 12 Volt (hot lead) | Black Wire |
| Yellow Wire | Auxiliary | - |
California residents: click here
Arrived without the 7 way plug. Opened the box to start re-wiring the trailer this weekend and now I'm dead in my tracks. Very frustrating.
Excellent quality product, install was a little challenging when it came to the 7 spade cable wiring, when did LT yellow wire become red and yellow auxiliary. You need to include a simple diagram of the junction box and where the connections go.
Other than wasting a few hours figuring out what was going on, it all went well.
Thanks
Mike L.
7/26/2019
There is more than one accepted wire color code for trailer wiring. This is why we provide a wire color/function chart in the product description above.
Used this kit to upgrade the wiring on my utility trailer. The junction box is suitably rugged. I mounted it on the underside of my trailer bed near the tongue. This box easily allows me to wire up a battery to on my trailer for a winch or breakaway brakes and keep that battery charged via the vehicle.
The weather tight box works great. The wire color from the 7 pin connector does not align with function of the trailer and the labels in the box. I had to remove the 7 pin connector for now and install a flat 4, it now works. I will have to check each colored wire when plugged into the vehicle to figure out what each wires does.
Other than a color coding issue it works great.
Little disappointed with this wiring kit.
The plug colors did not match up correctly for standard wiring. I ended up having to pin it all out with an ohm meter and connector on the truck (Ford F-150) and then match it to the trailer. Would have been nice for this to use standard colors and it would have saved me 30min.
Three connection wires from truck (2017 GMC truck) did not match up with color connectors indicated in junction box. Perhaps GM is different than most?
FOR THE MONEY THEY WORK, LONG LASTING USE ROUND BOX WITH A SCREW CAP AND CONNECTORS THAT FIT THE WIRE SIZE.
I am very happy with the items I received, everything went together with ease. This was the first time I attempted installing brakes on a trailer, your videos made it very easy to choose the items I needed and assembling. I will recommend etrailer to my friends in the future.
Thank you
John C.
I am very happy with the items I received, everything went together with ease. This was the first time I attempted installing brakes on a trailer, your videos made it very easy to choose the items I needed and assembling. I will recommend etrailer to my friends in the future.
Thank you
John C.
Great product. Came with everything I needed. Makes a great test point and junction box. Highly recommend!
worked great just wish they came a longer in length with this kit had to add 10' of 7 pin wire to it to reach junction box
I just received my order, the order came very quickly and completely. Everything looks good. I ordered the Etrailer brand. The quality seems very good.
Great product,Great service and fast sh ipping.
Thanks for fast delivery and great service. The videos were great to repair my Atwood coupler. I will be using you guys again soon.
all is well everything working as should be thanks for the great service.
Good heavy duty cable. Didn't really care for the over-molded plug. The pull tangs are soft and make it difficult to pull from the receptacle. Junction box is very sturdy and has plenty of room for routing wires.
Got what I ordered , It all fit ,worked well.
Good quality kit installed quick and ea sy.
Hi quatily product.
Professional Company
Prompt delivery
Can't wait to put these on!
works as expected
Easier said than done
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Brooke M.
11/22/2025
Oh, my goodness, I am sure that is beyond frustrating!! Let me make sure we get this straightened out for you. Be on the lookout for an email!