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Tow Ready/
Wiring Adapters/
Single-Function Adapter/
7 Blade/
4 FlatItem # 30717
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Video of Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector
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 (459 Customer Reviews)
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
Works great, no issues. High quality connector, and great customer service support (because I wasn’t sure if I was buying the right connector or not). Will buy from etrailer again whenever I need trailer stuff - great company. 686989
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
I wanted to show the custom installation. I did not want it under the bumper 553041
I 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
Connected existing 4 pole from van to seven pole on my pop up camper. 90538
Still happy with the connector. Traveled from Buffalo to Mt Rushmore then St.Louis and back this past summer. No problems.
Did you also use a brake controller when,yiu went from 4 to,7
-- comment by: Denise - 03/14/2016@Denise, Yes I do have a brake controller installed.
-- comment by: Tim K - 03/15/2016I 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
Now I've had it for a year and it still works as expected. I'm very happy with etrailer with everything from researching what to buy to product quality and getting followup questions. I couldn't ask for better service. 524325
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
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
Was exactly what they said it was & it works great. I highly recommend them. 208488
Its a very good product
I was surprised how fast the shipping was and the price for the product was very reasonable. I did not mind that there was no mounting plate for the adapter because I wanted something that would hook up to the camper when I need to use it and then take it off afterwards. I know I will be coming to etrailer for any other trailer or camper needs that may come up. 193891
could not be happier with the purchase that I made
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
etrailers is my go-to site for anything trailer related. Once again the part is perfect, pricing and delivery excellent. This part went on a 1991 Range Rover to connect to a rather battered PJ flatbed for a one time tow. Worked great! Thanks! 443606
I haven’t had an opportunity to use it, but it is good to have it available. Thanks for the follow-up!
The product did not come fully fabricated. When I connected to the trailer I could not get any signal to transfer through. So I took the item apart and the 4 pin ground was not connected to the 7 way ground. This meant I didn't get a closed circuit when connected. After stripping the ground wires and connecting them the product worked great. I would suggest buying if you know how to modify in order to connect the ground wires 46844
You would think anyone dealing with trailer hitches and trailer wiring parts would stock this 4 pin to a 7 pin connector. I got tired of looking locally and ordered this connector on line through etrailer. My little trailer does not have trailer brakes and I can now use my 7 pin connector installed on my truck or use the 4 pin set-up with my car. What a great universal connector without having to rewire your vehicle or trailer. I would recommend this connector to anyone pulling a trailer, thanks etrailer. 347065
This is a great product . The price was $18.00 dollars cheaper than some I found online. I have a 2002 dodge ram 1500 pickup, this adapter will change the 4 pole( which is made on my truck) to a 7 pole( which is on the trailer I will be using). The product connected, and bolted up to my truck bumper very easy. E trailer is the best. 121019
Im still enjoying this product, Ive used it several times, still workingwell
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
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
Had the same issue with the ground kurt. Almost gave up on it until I read your post. Thanks.
-- comment by: mike g - 06/17/2014Thank you so much. Ours wasnt working either until we grounded it to car frame.
-- comment by: Sarah - 10/08/2015this connector along with the short L bracket and the mount bracket- gave me a nice connector to my hitch. Though I used the short connector and did have to slightly bend it to allow the 4 to 7 pole connector to fit. If Id bought the long L bracket-- It could have worked-- but bending a little worked well. 68963
Just what I needed. 96904
A year later and everything is working as it should. I dont give the product much thought and thats a good thing because that means its doing its job and doing it well.
Just what I'm looking for. Easy conversion for any situation. 717726
great 717679
Easy to install. After year full timing RV still working great 711368
The part was exactly what we needed, sturdy construction and very pleased. 682680
This order came in very fast. Works gre at 681431
worked great 678643
works Great. 677512
Works as should Quick shipping 666662
Great stuff. Well made. Quick shipping. 661582
all items as described fit perfectly easy install, shipping was quick. 660231
High quality at a great price. This site is awesome also. 651313
Item shipped quickly and was in perfect working condition. Exactly what I needed! 650670
Easy to install, a year later and they still work great. 648018
Great product just what I needed 633657
Product was just as described. Easy to use and works great. 627836
Bought a hitch & electrical components for my 2015 Cadillac SRX. Everything connected up as explained & is working great. 625275
Delivered in only a few days packaged well. Everything was there and in good shape installation video helped very much. Love the hitch I see no problems with it at all. 615986
Nice product, fair price. Thanks 615755
Happy to get this hard-to-find 7 pin to 4 pin adapter for a crew trailer. Fast shipping and great price! 613122
It is exactly the adapter I needed for my Toyota Highlander. I bought it to replace one that was damaged when I was driving off road. I buy from etrailer because I can get the exact part I need. Local supply houses did not carry this adapter. 605972
Great product. Easy to set up. Perfect for my older Chevy k20. 605400
Good deal and the perfect item for what I needed. 603809
Great product and service! 603162
Works good 600949
Great product, great price, great servi ce! 599623
Well constructed and good value. 591670
Product is good. No instructions were available, which shouldn't be a big deal but would have made me a bit more comfortable. 591122
On the product description page on our website, we have a very nice photo that explains the purpose for each wire.
--Excellent piece to finish up a Trailer harness for my Crosstrek 590315
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