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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Average Customer Rating: 4.8 out of 5 stars (493 Customer Reviews)
After hours of trying to get this to work ( since I had gone threw the whole trailer and new truck wiring). I called a guy we know that works for the DOT field crew as an electrician. He took a meter to the system to find out in making the harness the ground was broken in the sheathing. He was able to cut repair and connect the wires so it worked great. This should of been checked before shipping. Cost me money for him to repair. I know this is a one in a thousand weird happening but shouldn't of left the warehouse to me. 473875
Connected existing 4 pole from van to seven pole on my pop up camper. 90538
Tim - 01/17/2015I was wanting to pull an enclosed trailer that has 7 pole plug in, with my vehicle that only has 4 pole plug in, without messing with the wires at this time, so I ordered the 4 pole to 7 pole adapter for this purpose. When item arrived I plugged adapter in, checked lights and on my way I went. all the extra wiring is there when I decide to add a brake controller. Now I can unplug the adapter and still use my 4 pole plug in. The item was well put together with tight wiring, price was reasonable, the shipping was smooth and the website is outstanding with plenty of instructions, wiring diagrams and the how to videos are a real plus on wiring up trailers. Thanks for an informative website and great product. 222496
Has been working great since purchased and installed 3 months ago. Used for several different trailers and long distance trips. Easy to install. Had to be slightly creative with the attachment of the ground. Did not see a reason to have a ground on this portion since everything else is already grounded, however would not work without grounding to the frame. Only used the four way connection and taped remaining three back. Hope for good things to come with this produce. Highly recommend this product. 93648
I wanted to show the custom installation. I did not want it under the bumper 553041
This product works as expected. There is not too much to the installation, just plug it in properly and mount the ground wire. I did not find an easy way to mount this to my wife's Odyssey, or to the trailer hitch (item# 75270). Luckily, I do prototype design and manufacturing. So I came up with my own solution. I designed and made my own bracket to mount the 7 pole to the trailer hitch. It works like a charm, and looks great! 387667
There was no splicing wires, it was plug-and-play, highly recommended, very easy installation 137304
I wish all on-line business were as good as etrailer, I have made several purchase for my trailer needs with these good folks and you cant beat the service or selection. Every hitches fits with no issues and are built extremely well 643167
Used this adaptor to replace the factory tow package flat 4-pin connector on my 2019 Toyota Highlander. It's sad that Toyota is still using a cheap flat 4-pin connector on their factory tow package for a vehicle rated to tow 5,000 LBS. Would it really have cost that much extra for them to just use a round 6- or 7-pin connector to begin with? The installation was pretty straightforward using a new mounting bracket for the round 7-pin connector in place of the existing 4-pin bracket. I hooked up the white ground wire to the mounting screw for the new bracket after sanding paint off the bracket and nut and using dielectric grease for the ground wire and 4-pin connections. Spent some time re-routing and zip-tying wires and taped up the 3 wires on the adaptor that I won't be using. Nice clean installation. Trailer running lights, turn signals and brake lights work great. A quality product delivered in a timely manner by etrailer.com. 646987
I was really skeptical about this adapter but for no reason! Installed in about 10 minutes using etrailer mounting bracket, dielectric grease, a couple zip ties, and some electric tape. Worked perfectly the first time I tested it on my trailer. 613442
I received this purchase and was installing it the next day. Luckily I read the other reviews and saw that I HAD to attach the white ground cord that was sticking out of the harness. Upon looking, I found the white wire that comes out out of the flat 4 plug isn't attached to anything thus requiring the ground to be attached to the vehicle. All in all, I was very satisfied with this purchase. 178592
I have posted reviews before but I really cant find any other words to more adequately express how pleased I am with etrailer. Of course, the products are top notch. But the service before, during and after the sale is the best part of my experience. Truthfully, you may find a better price elsewhere on the internet (not often though), but I can assure you that better service and dedication to customer satisfaction cannot be found anywhere else! 668826
898586
Does what you'd expect it to do. Got the product fast. 897216
Worked Great just what I needed and you had it. 896270
Every time etrailer has provided me with the needed wiring! 893843
Looks like a quality product. Will know more in a few weeks when I try it out. Ordering was easy and delivery was sooner than promised. A great experience as it should be. Thank you. 883878
We selected this when a standard wiring kit would not work with our vehicle. My husband installed it himself although he had do some modifications for our vehicle. Seems like it would work great for a temporary trailer system but we were looking for something more conceled. Works great and we have had not difficulties with operation, just placemnt and looks. 881524
good 877053
872828
Did exactly what it was supposed to do, it worked. 869729
Brad was extremely helpful and courteous! Shipping was expedited and I received the product I ordered in a few days. Would definitely recommend etrailer to all my family and friends! 860940
Exactly what I ordered just not in time for trip had to make other arrangements. Max of three day delivery took 7 days. 859814
Worked as expected. Plastic is a little cheap. 859773
856391
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