Color coded terminals in the ABS box provides a fast, easy way to connect the wires from the trailer connector to the wiring for either a 6-way or 7-way connector. Makes replacing your trailer's connector simple.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone. Adam with etrailer.com. Today we're going to be taking a look at the Buyers Products seven pole trailer junction box. So this is going to be a really organized way to get all of your wiring from your seven pole of your vehicle tied up to the right function of the wiring of your trailer. This is going to do a couple of things, keep everything organized, keep it all dry because it does have a cap, but also a lot of the times we don't get trailers that configure with the standard seven pole color wiring. Luckily we lucked out and we can do basically color to color, but it's not always the case.
What's nice about this junction box is it is pre colored. Each stud is going to have the color and it does have stated green in text and also what that function will be on the other side.So it gives you a color cue and also a word cue to let you know how to wire this thing up. So when comparing this to some of the other junction boxes we carry at etrailer.com if you're starting from scratch, etrailer does make a kit that comes with a seven pole and a junction box and much more. Also we do have a Pollack brand that comes with a 10 function. So if you have a little bit more use for a couple more terminals here, definitely go ahead and grab one of those.It does look pretty difficult, but honestly it really isn't.
You just got to test your wires. So let's just go ahead and do all that together. So we're going to go ahead and check out our trailer's functions and you can either use a test box or just hook up your vehicle. So what we've got to do is I'm going to grab ground from my white wire here. You can also just ground it to the chassis of your trailer.
With my test box I'm going to be testing the right blinker. Ours is color to color, so brown should be the right one.So you can repeat that same exact process for all the wires. Just remember match it to function, not color. Now that we have all this wiring sorted out and we know every single wire and what it does, now we can go ahead and take our junction box. You kind of want to get an idea of where you want to mount it.
I think I'm going to mount it right here. You want to make sure you can get that cap on and you'll be able to tap in from the sides. Before we do all that, what we're going to do is I'm actually planning on using these two sides here to run our wires in and as you can see there's no holes.So in our kit that comes with the junction box we are going to get replacements that will have holes in them. So since I'm using these, I'm just going to take this out put it back in the box and these are going to eventually seat into the slot there. What I'm going to do to make it a little bit easier on myself. I'm actually going to fish these wires through first. So I'm going to to do the same exact thing for our wiring going to our trailer. Once that's done, I'm actually going to start with the wiring that comes from our vehicle and basically all we got to do is just put it into the slot like so. We're going to have to undo these screws right here. Take that off, put it in there.We might have to avoid these little brown plastic pieces here. That's going to be what's going to secure our lid into place. Then fasten it down. Once you think you're done, give it a good wiggle and make sure it's nice and tight. These ring terminals does not come with the kit. We do sell them here, so if you don't have any in your garage or anything, definitely go and pick those up whenever you grab one of these. Always make sure you've got a good connection and obviously have enough length to meet it to the right function.So I'm just going to put this nut on there pretty loosely just so it's not flopping around. I'm going to go ahead and put some ring terminals on all of our wires. For now I'm just going to match them up color for color on our junction box. So as you can see here, we just finished our vehicle wiring here and we're going to basically do the same exact thing for our trailer wiring. We're going to put this into place, but I got to undo these two screws first. Then we're going to go ahead, put those back, and screw them down evenly.So now we can just go ahead and put some ring terminals on all these wires and we're probably going to have to cut them and strip them back a little bit so they can fit into our junction box. So we've got all of our ring terminals on here and this side over here is going to be all of our trailer wiring. Over here is going to be from our vehicle. What we're going to do is as we put from our vehicle, all these wires have a specific function. So you don't necessarily need to go by the color because a lot of the times these trailer wirings aren't going to be color to color. So you could do it one at a time and test each and make sure that you're matching them up function by function. Let's take this nut off, place it on there.Tuck those wires away a little bit and put that nut back on. We are going to come through here with the tool to tighten these up. So now that everything is hooked up, now's a great time to test everything out and make sure everything's hooked up correctly. We're going to use the test box, but you can also just use your car. All right, so first we're going to start with our taillights.Our left turn signal, our brake lights, and our right turn signals. So now is going to be the time to mount it in its home. I want to angle it like so and we're going to run some cell tappers through this plate. One thing to note these cell tappers are not included with our kit. So once that's secured into place, give it a good wiggle, and make sure it doesn't go nowhere, and then we can go ahead and put our cap on. It doesn't really matter which way because these are going to line up regardless. Then we can take our screws and these we're included with our kit, slide on in there. Use the Phillips head tighten them down. Well everyone that's going to do it for our look at the Buyers Products seven pole trailer junction box.
Average Customer Rating: 4.8 out of 5 stars (240 Customer Reviews)
Color coded terminals in the ABS box provides a fast, easy way to connect the wires from the trailer connector to the wiring for either a 6-way or 7-way connector. Makes replacing your trailer's connector simple.Your connector box is a great product, easy to install each wire by color and number. I had a shorter than I expectd new harness and plug but the box made it eazy to place where I needed it instead of going into the trailer understructure. I placed the box between the traile tung under the battery box for easy future acccess. I hand made a sheet metal shield for extra water proofing.
I reccomend this product, easy peasey.
Excellent replacement for the OEM unit that was in my trailer. The OEM units lugs were over tightened when the trailer was built, so I needed a replacement when I replaced the cable to plug into my vehicle.
This was fantastic for my utility trailer. Made wiring everything super easy! For my small trailer I have led brake lights, side blinkers and I also had a 3rd brake light. There was still room so I put a female trailer plug just long enough to hang out of the box. That way I can connect a 'trailer light tester' and have an idea where potential shorts might be. ;-)
I can't at this time tell you what I think, except for the fact as on any review you should give one some time to install and use, so maybe like a month after the purchase.
There's nothing on the review about service, shipping which I wasn't happy about paying for UPS only to have it come to me by USPS.
Reviews and survey's are made up by companies without the customer being able to give proper feedback. I had to also talk with a few agents via chat to get the parts I needed, and I haveb't yet opened the boxws to see if the parts are all there.
Too the box had a big hole in it, I suppose for the UPS driver to handle it better (1st) package.
Also funny, you're asking for a review of these "LAST" two products I bought from you, but not all the others from the 1st order.
So over all this to me is just a waste of time to boost your own ego.
This junction worked perfectly! So handy to have under your vehicle to wire up a wide variety of accessories! I used it to wire up flush mount pod lights that I installed in the rear bumper. They serve as reverse lights and they’re also wired to come on with a switch. Very handy!
The product did exactly what was advertised which is what I needed. The shipping was prompt and quick. I have used etrailer.com before and will use them again.
Good clean wiring; no exposed connections on our '54 Chevy 3100 restomod.
The junction box container was open and there were no fasteners inside for the cover. I guess I will need to provide my own.
We had a broken mount on the first one and etrailor sent out a replacement right away. E must be for easy.
I like the product it was what I needed. After completing my project I could of used a second one or a bigger one with the amount of wires. I am the type of person that isn't happy with legal amount of lights. I have to go over the top. The trailer had 7 lights after I was done the total was 33 lights. If I had more time and money it probably closer too 90 lights because there is all ways room for more.
Love it! Very tidy installation under the bed of my flatbed truck to deal with that tangled mess of wiring that was back there. It additionally allows for easy additions (like my new backup camera), in addition to the ease of updating and configuring both the trailer wiring but also the truck bed wiring. I'm VERY pleased with it.
Definitely worth the investment. Makes removal and installation of most 2.72" dust caps a breeze
The best way to rewire a trailer. These are handy, keep your wiring neat and clean. If you are replacing the plug in cord also then it is better to buy one with the cord pre-terminated. Saves time and the factory crimps are usually better then done by hand. The color coding is also very handy for connection and testing at this point. Speeds up troubleshooting with out cutting wires or puncturing the outer casing which will start the end of life for wiring especially in the states where they salt the roads in the winter.
Excellent product, well made and sturdy.
Color coded anchor bolts to secure your 7pin connections with the wiring of your trailer to match up appropriately with assigned functions from your vehicle’s harness. Which is all standard!
Gasket sealed to help protect connections if attached outside exposed to the elements.
Extra sleeves provided in case your wire harness is slimmer in diameter or wished to seal proof the junction box.
Can’t express enough how easy, convenient, and the quality of this product has been from install and to this point in time.
Over a year in my trailer, and looks just as good as the day I put it in.
It is made of thicker plastic, built to last, and has held up with no deformation of any kind within my enclosed trailer in the Texas heat.
Im sure my trailer, being black, and enclosed, bakes over 160 degrees in there.......if not over or near 200 degrees.
Yet plastic is still good and not brittle, and like I said......is no different than the day I put it in.
I bought it to rewire my whole trailer and to include reverse lights and electric brakes. Original wiring was complete BS and had splicers, which caused intermittent working lights and shorts.
I gutted and rewired the whole thing with thicker gauge wiring, heat shrink connections with heat shrink tubing over that, and any possible friction points I wrapped with tape and put heat shrink tubing over that.
Needless to say, the color coded connections within the junction box made my life so much easier.
Not to mention the thought process that went into the design of this junction box for a clean install no matter where you decide to mount it was a God Sent!
You wont regret this purchase!
I’ll quote Chef Paul Prudhomme on this one,......
“ I Guarantee!”
Great product. made my trail look neat and has worked great for over a year now. Great service and follow-up as well. If you need to rewire your trailer I would highly recommend this product and this supplier.
I have a 2019 Forest River travel trailer. I started having brake problems and the dealer was no help so since i have some experience I started looking at the issue myself. What i found was a series of loose and poor 12v connections throughout the braking system and some in the lights as well. The main culprit was connections in the main junction box, see pictures. The factory used a household style jbox and not a quality sealed jbox. I looked on line to fInd a suitable solution that allowed easy access and easy installation. This product fit the bill Perfectly. After a couple hours work to remove the old box and install the new one (in new location) cut and install proper ends on all the wires and make clean secure connections my trailer now has brakes that work properly. The new box came with all necessary screws, nuts and has plenty of wiring install point options. It is all plastic so i was careful not to over tighten any of the screws used to retain the harnesses on each end of the box.
Thank you for a great product.
Tim
Gunter, TX
Happy Camper
The Trailer wiring Junction Box has cleaned up the new wiring I installed. I now can go to one spot to check for any wiring problems. It was easy to install and had everything included to protect the wires.
George J. Just so you know, Etrailer has never let me down and has met all my expectations for quality, price, rapid delivery and easy of finding what I need on your website. Many thanks.
Great product. Used on my horse trailer lighting.
Works perfectly. Water tight seal. Haven’t had any issues with it and very easy install
This box made it easier to check my wiring problems.
Beth - 07/16/2022I used this to fix a poorly done T off trailer harness of a F-350. Fifth wheel and bumper. You can properly terminate wire with ring terminals and keep the connections reasonably weather proof
Exactly what I needed.
The cover plate screws do not fit. Took me awhile to find replacements - they are an odd size, metric for sure.
Once that was solved, it was fine. I wasn't convinced it would be water-tight, so I added a small drain hole on the bottom. Works fine
Very happy with this product. Great for keeping the wiring clean and connections protected. Re-wired a dump trailer. I like to run a ground wire instead of using the trailer framing as ground so my ground stud got overloaded. Ended up installing a seperate ground stud outside this enclosure with a single connection in side this junction box. worked great and has held up well with regular use of the dump trailer.
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