Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector
(551 reviews)
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- This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your Nissan Pathfinder's OEM wiring system and mounts with included bracket. Features: 7- and 4-Pole trailer connector with mounting bracket; Has high-impact, ABS plastic construction.
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Nissan Pathfinder wiring from Tow Ready. Product reviews from other Pathfinder owners. Expert wiring advice with thousands of helpful questions and answers. Guaranteed lowest price and fastest shipping.- All Info
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Tow Ready Wiring- 30717
- Wiring Adapters
- Single-Function Adapter
- 7 Round - Blade
- Plug and Lead
- 0 - 5 Feet Long
- 4 Flat
- Tow Ready
- Adapter converts from 4 pole wiring on vehicle to 7 pole round plug
- Additional wire leads for brake, power and accessory are 12' long
- Mounting bracket (18138) is sold separately
20321 Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector
WARNING: This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Economy$1.39 Less
Value$3.78 More
Premium$19.56 More
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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.
Video Transcript for Tow Ready Wiring - Wiring Adapters - 30717 Review
Customer Reviews
Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector - 30717
Average Customer Rating: 4.8 out of 5 stars (551 Customer Reviews)
- 30717
by: Paul06/12/2021
I really appreciate you following up on my order. The information and videos will help when I drop the harness and circuit breaker off at my local shop. When I went to them originally with my problem I couldn't answer all their questions. With the parts in hand they should be able to convert my four prong to the seven prong plug used on my new trailer. Thanks also to Craig at CampInn for directing me to your site and the parts they are using in the construction of my trailer.1063177
- 30717
by: James H. Miller06/02/2017
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
- 30717
![Path finder 7.4.1 Path finder 7.4.1](https://s3.amazonaws.com/media.drunkduck.com/users/The PathFinder/comics/The_PathFinder_Chap_4/web/fHqKNAoWyt.jpg)
by: Richard09/25/2021
Kyle was extremely helpful in not only finding the right hitch but the accessories I needed to go with it. Would definitely recommend etrailer.com to all my friends. Prices were excellent too!1162636
- 30717
by: roberto03/05/2013
this 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
- 30717
by: Chris03/21/2019
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
- 30717
by: Timothy10/04/2021
Worked as intended - wished they included a wiring diagram for us trailer newbies.1171346
- 30717
by: Paul10/05/2021
Super Service at ETrailer - I have never had an issue with the help provided or with any product1171965
- 30717
by: Eno09/06/2021
Well constructed and sturdy! Nice, standardized 4 pin connector, other pins from 7 pin connector easily accessible.1144991
- 30717
by: Roger10/24/2021
Great product! Great instructions. Easy to install.1187608
- 30717
by: kennth09/28/2020
Every time etrailer has provided me with the needed wiring!893843
- 30717
by: Marty Klemm06/24/2014
There was no splicing wires, it was plug-and-play, highly recommended, very easy installation137304
- 30717
by: Bruce11/15/2021
Average quality part, would be nice to include a mount but ended up going the extra mile and used a hole saw to install it in my van’s bumper out of harms way. Would be easily damaged if mounted near the hitch.1204333
Comments
Item# 18138
Mounting Bracket for 7-Way
$6.91 is the mounting bracket that works with this wiring.
-- Sierra K - 12/01/2021Mounting Bracket for 7-Way
$6.91 is the mounting bracket that works with this wiring.
126785
- 30717
by: kurt k08/06/2013
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
Comments
Had the same issue with the ground kurt. Almost gave up on it until I read your post. Thanks.
-- comment by: mike g - 06/17/20144951
Thank you so much. Ours wasnt working either until we grounded it to car frame.
-- comment by: Sarah - 10/08/201515483
- 30717
by: Zach O02/03/2017
Works great. Easy install.It's more sensitive to dirt than I expected, but that might be common to all trailer connections, I don't know. I noticed on a trip that my brake controller said NC (no connection), and I didn't have trailer brakes, which meant my blinkers probably hadn't been working, either. I got pretty worried, and looked at it and only saw just a little black gunk on one blade. But cleaning that small amount of black gunk off solved the problem.So far, so good!338393
Comments
Thanks for your business and your review, Zach! Using dielectric grease like 11755 on your connections increases reliability and the life of the connection by preventing corrosion and sealing the connection.
-- Laura E - 02/10/201722429
- 30717
by: Lyndall11/19/2021
It was easy to install end it has worked very well1206895
- 30717
by: Darrell08/12/2018
I wanted to show the custom installation. I did not want it under the bumper553041
- 30717
by: Rics4903/17/2014
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
Comments
Im still enjoying this product, Ive used it several times, still workingwell
Rics49 - 04/06/201510630
- 30717
by: Brian10/31/2021
This hooked right in with the rest of the system. One of the easiest parts of the install.1192318
Path Finder 7.4.1 Torrent
- 30717
by: Al N.05/17/2015
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
Comments
could not be happier with the purchase that I made
Al N - 05/26/201618023
Mac Pathfinder
- 30717
by: Horacio08/05/2021
Only set back, screws are rusted already 1115311
- 30717
by: Richard S.05/25/2019
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
- 30717
by: CP11/10/2021
Working nicely! 1199702
- 30717
by: Leon09/23/2021
It appears to be a quality product and it works just fine.1160093
![Path Path](https://www.nissanusa.com/content/dam/Nissan/us/vehicles/pathfinder/2022/features/interior-cargo/2022-nissan-pathfinder-third-row-seating.jpg)
- 30717
by: Reck008/28/2015
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
- 30717
by: Teo10/10/2021
This was perfect for my needs. Good quality too.1175542
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view full answer.. - How To Install a 7-Way Trailer Connector On a 2016 Honda OdysseyI have exactly what you need to add a 7-way trailer connector to a 2016 Honda Odyssey. For this, you'll need to start with a 4-way trailer connector and I recommend the T-One Vehicle Wiring Harness part # 118521 which is plug-n-play. Then you can convert this to a 7-way using the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation part # ETBC7L. The 7-way is easy to install; just plug the two 4-ways in, ground the white wire, then run the black wire up to the battery but that's..
view full answer.. - How to Wire a 7-Way Trailer Connector on a Toyota Highlander HybridIn order to provide a maintenance charge through the 4 Pole to 7 Pole Adapter, # 30717, you will need to connect the black wire on the adapter to the vehicle positive battery terminal via a 40 amp circuit breaker, # PK54540. You will also need to make sure the white ground wire on the adapter is connected to the vehicle frame. The wiring from a 7-Way will provide a maintenance charge to a trailer battery but will not fully charge it.You will also need about 20 feet of wire # 10-1-1..
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view full answer.. - Trailer Lights are Not Working with 4-Way to 7-Way Adapter Plugged Into 2011 Ford EscapeFor the adapter # 30717 to function, the white wire has to be grounded to the vehicle frame. Without that ground it will not function.If it is properly grounded and you still do not have lights on the trailer, make sure that the adapter 7-Way and the trailer 7-Way pin configurations match up. I have included a link to our wiring FAQ article that shows diagrams of how various connectors should be pinned.If you are still not getting lights test the 4-Way on the vehicle with a circuit..
view full answer.. - How to Wire a 4 Pole to 7 Pole AdapterWe need to figure out why the trailer lights are not working. Use a circuit tester on your 4-way flat that you plugged into the back of the 4 to 7 pole adapter and test each function to make sure they are working correctly. If your 4-way is working properly, then you can plug it back in and test the corresponding poles inside the 7-way connector to be sure the adapter is working properly. If you need a circuit tester, we have part number 40376.Next, you would have to plug in the trailer..
view full answer.. - How To Install a 7-Way Trailer Connector On a 2013 BMW X3 It sounds like you need to install a 7-way trailer connector on your 2013 BMW X3 and if that is the case, you will need more than just the Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector part # 30717 unless you already have an existing 4-way trailer connector. The Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector as the title states is just an adapter for an existing 4-way trailer connector already installed. The 4-way trailer connector you referenced on the adapter will plug..
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