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installation instructions And specs For complete information.
Item # 30717
Orders above $99 qualify for free shipping
Adapter converts from 4 pole wiring on vehicle to 7 pole round plug. Additional wire leads for brake, power and accessory are 12" long.
Picture of the 7-way trailer connector
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.
Today were going to review part number 30717. This is the Tow Ready four-way to seven-way trailer wiring adapter. This adapter will convert from your four-way on your vehicle to a seven-way round plug. There are additional wire leads for brake, power and accessories which are 12 inches long. Basically what you would do is your vehicle would need a four-way on the back of the vehicle that you would plug this into to get you your four-way, and then you would have four extra wires here. Basically the white wire would connect to the vehicle frame for ground.
The black wire would be used to connect to the battery for 12 volt power. You connect it with a fuse or an in-line breaker. The yellow wire would be an auxiliary wire for 12 volt power, reverse lights or reverse lockout for trailer brakes. The blue wire would be used to connect to an output wire for brake controller. Lots of times this adapter is used when somebody is installing a brake controller on their vehicle because the brake controller does require a seven-way at the back of your vehicle.
If any of these wires, the features of thee wires are not required you can take them out and put them out of the way, but I would recommend to mount the ground wire. The length on this adapter is 12 inches long. That should do it for review on part number 30717.
Average Customer Rating: 4.8 out of 5 stars (344 Customer Reviews)
We only discovered this site recently and LOVE it. You don't have to know what you want, the questions lead you to exactly what you are needing. The item is of great quality, and as described. We can now swap from truck to jeep with our trailer, and simply without effort. We have found our new 'to go' store for our trailer shopping. Customer Service by the way, terrific, great communication, and very quick shipping. Really Great Experience, Highly recommend. 121873
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
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
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
Connected existing 4 pole from van to seven pole on my pop up camper. 90538
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
wiring is great wished it would have been recieved by me in a more timely manner. had to barrow a truck to go on a camping trip. shame when i can order some thing from hong kong and it arrives faster. 136911
by: Mike M.08/26/2013
Just what I needed. 96904
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
Works great. We were finally able to go camping this weekend and it was nice to leave and return with the lights working. Thanks 216313
by: Greg K07/09/2015
Got this with the mount for round hitches. It was just what I was looking for, installed easily and works just like I want. 210638
by: Dave R06/30/2015
Was exactly what they said it was & it works great. I highly recommend them. 208488
by: Shawn Pollard02/09/2017
The only reason I did not give this a 5 star review is because of the solderless crimp connectors. Because of the connection being up under the back of the car with road grime spraying around up under there, I would think that you would want to use the heat shrink crimp connectors. That way you could seal the connection. Other that that everything else was good quality and worked perfectly. I personally cut off the connectors and used my own weather tight solution. [link] I am unable to find the pictures at the moment but will look and see if I can find them and add them later. 340173
by: Doug Kitzmiller06/05/2014
Works great. 134371
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
by: Marty Klemm06/24/2014
There was no splicing wires, it was plug-and-play, highly recommended, very easy installation 137304
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
by: Manuel D.07/05/2012
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
by: Doug M.03/16/2015
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
by: Lyndz T07/10/2015
This is the first time I've ever ordered anything from this website and I am very happy with my purchase. We needed the item in a timely manner and therefore paid for 2nd day shipping. Unlike a lot of other websites, it actually came 2 days later! The adapter worked perfectly, was exactly as described, and is made with quality materials. I would highly recommend buying from etrailer.com. 210891
by: Don H07/03/2014
The adaptor was shipped almost immediately, but took longer to arrive than I had expected, if you need is quickly, ask for expedited shipping. The adaptor worked fine once I connected a seperate ground wire from the adaptor's white wire to a ground on my vehicle. Instructions/warning should be included noting that the 4-wire connectors ground does not pass through the adaptor. 138958
by: J-S Chenard04/16/2008
Good adapter Bought this adapter to convert from a 4-wire standard trailer plug to my Coleman pop-up camper 7-wire adapter. It works great! Just don't forget to attach the adapter's white ground wire to the vehicle frame, since the adapter does not make use of the ground return lead built into the 4-wire trailer plug. This is stated in the instructions, but easy to forget... 768
by: Tom Fye11/18/2013
Product exactly as described, and exactly what I needed. My van is wired with a 4 pin connector(harness with factory plug-in purchased from Etrailer some time ago), but I occasionally need to tow a trailer that has the 7 pin connector. This will work perfectly. I really appreciate the additional documentation and support from Etrailer, as well as the super-fast shipping. 107666
by: Steve S09/16/2014
This will be the 3rd connector that I have put on my van. Since I already had the flat 4 connector, installing this connector was a snap. The connector doesn't come with any mounting hardware and I needed to run to the hardware store and purchase 4 nuts and bolts to mount it. If this is your first mounting, you are probably also going to need to purchase a bracket. 151414
by: Dean Spletter11/30/2016
I ordered the four pole flat harness and the adapter to convert to a 7 pole RV plug. I initialed had problems which were attributed to a bad ground from my tow vehicle to my trailer. I was surprised at the quick response I received when I asked questions. All is now working and I am very happy with the products. I would highly recommend etrailer to any one. 321641
by: Ted L.07/29/2013
I actually ordered a trailer hitch, T-wiring harness, and 7 pin connector. Everything arrived in great condition in just a few days. Shipping was VERY fast (due to telephone ordering) and exceeded my expectations. I am very happy with the products, shipping, arrival condition, and installation support. I will definitely recommend etrailer.com to other people. 92151
The t-one harness for my Mazda pu truck was just what I needed to haul a 4 point trailer.The transistion wire harness from a 4 point to a 7 point made it a lot easier to haul a trailer with a 7 point hookup.The installation was very easy for both.I have no doubt this way will solve easy hookup from 4 or 7 point hookup.I am well covered for either. 362772
I havent used this towing, but as far as the install foes, I had the whole thing installed in about 45mins. It only took so long because my son was wanting to help and learn. Plus there was the brake controller install inside the cab. Other than that everything is plug and play. This is the easiest product I have put on my truck so far. 77197
by: Joe T12/21/2016
It is a great relief to get what you order and as fast as it arrived, I could not have expected any better results. The items ordered were good, I would like to see more "MADE IN THE USA", but it is difficult to find. I do like to shop USA. products when practical.. Very good experience ordering from ETRAILER. 327326
by: Ryan D.06/29/2015
This product works well to adapt a 4 flat connector to a 7 pole connector. It's odd that is requires a second wire from the battery, though I'm sure there is a good reason for that. It's also odd that the ground wire (white) isn't actually connected to anything. It stops at the taped-off strain relief, and pulls out easily. 208160
by: Cory B10/01/2013
This 7 point harness wired right in with my T1 connector and is great for hooking up to my camper, very easy to install! 102166
by: John Z08/06/2016
A fair price on an excellent product! I looked at several parts stores locally to no avail and then looked online and found this part which is exactly what I needed. Well put together of quality components, all in all a great product and anyone looking for these type of parts- have no fear of buying from this company! 280727
by: Robert G12/28/2012
The adapter I ordered was excellent, the two brackets I ordered to use with the adapter were excellent, but the hose clamp to attach the bracket was a piece of junk, I spent an hour trying to get it to work and the auto parts guys couldn't get it to work either, so I bought one of theirs. wasted a lot of time on it. 62168
by: Dave Shannon02/21/2012
I needed something to enable my 4 pin equipped Wrangler to power the ligts/turnsignals when I move the 7 pin equipped 16' car hauler. Now I can have lights/turn signals when I move the empty trailer around after dropping the Jeep off of it, no longer have to try to maneuver the trailer around with a 38' motorhome. 32050
by: Fred Z02/27/2017
Product was as described, fit like a glove and delivery was incredibly fast. But oh what amazes me the most, is a year after the purchase they actually followed up to see if I was still happy with the product. Our companies should take note, this is how good business is done. Regards, Fred Zaragoza 349966
by: Darren Q.10/10/2016
the adapter was exactly what i was looking for have a 4 pole on truck needed a 7 for the new popup we bought,trailer is light enough i don't need brakes just the lights,easy to use plug it in and ground it to frame your good to go, thanks etrailer for a great product and easy fix no rewiring 305246
This adapter also went well , be aware it did not come with the mounting plate ,be sure and order the mounting plate at the same time , as I had to get mine after the fact , in all honesty it was my mistake .Unless this is a repair replacement you will need the plate to install this item . 241795
This RV receptacle works great for my set up. Most of the wires hooked to the Curt wiring harness connector. I installed a two wire cable from this to the front for 12Vddc and Electric brake control. I also hooked to my backup light to provide for my trailer back-up lights (LED). 323519
by: Ron E.06/29/2012
The 4 Pole to 7 Pole adapter is excellent. It is exactly what I was looking for and the quality is superb. It saves time and is simpler to use than having to figure out different color codes and splicing wires. It is a much cleaner look than having wires hanging all over the place. 46131
Great item, great price. Be aware that the white wire from the 4 way is not connected...it is cut about 4 inches long and hidden within the plastic harness covering. I believe that they expect grounding to be accomplished via the heavy white wire with solderless connector. 107240
by: Ben B.10/18/2016
The website was extremely easy to use especially with the feature to pick my vehicles connection and my trailers connection. My purchase arrived very promptly and the customer service was excellent. The adapter works perfectly and I will definitely shop from etrailer again. 308376
by: Sid H.09/10/2013
Needed this for a new boat trailer that has surge brakes. Worked great for the tie-in needed to back-up lights to disable the trailer brakes while backing up. Easy process, even for me!! Recommend the mounting bracket too for a clean install. Thanks et!! 99261
by: Mark S.10/07/2014
Exactly what i was looking for. Easy install. Going from 4pole to 7pole was a breeze. I actually hardwired mine, the white ground in 4pole adapter is a dummy. So make sure you ground out the 7pole connector seprately or connect to am existing trailer ground. 154914
by: Randy C10/27/2016
I received my order very quick and all items are just as advertised. I will defantly order from e-trailer again. Prices are ok too. I am impressed with the product lines they offer. I'll be in the market for one or two trailer brake controllers very soon. 313895
The wiring harness was to easy. I had to go back and heat shrink cover the wires that I had spliced into. The plug on the vehicle was just as the diagram sent with the harness indicated. Products came on time a both things works well .I am more than happy. 340864
Ordered on line directly from etrailer. Best value and same product(s) as xxxxxx. Best part other than excellent products(s) was free/discounted shipping that even arrived a day earlier than promised. Great customer service and follow up, too. Wow! 327584
by: Don B07/12/2016
After mounting the bracket for this 7 pole connector , the install was super simple. 4 bolts and nuts provided with connector made it very simple and fast. Very pleased with products and on time delivery. I will be a returning customer. Thanks etràiler. 271168
by: Susan Welsh05/16/2014
I bought this so that I could adapt the four pole connector coming from my jeep wrangler to a 7 pole coming from my new TB camper. Had it mounted on my bumper and it works just great. Expedient delivery of item and great customer service on the phone. 130991
by: Eric A..08/19/2011
I ordered about 5 products from you last week, mid week, and they were on my doorstep in perfect condition by Saturday! Nothing on backorder, and packed well into 2 boxes. Also, i appreciate the status emails and follow up. Thanks Etrailer, Great job! 22128
Great Product! This product is exactly what I have been looking for and for the price I jumped on it! The install could not have been easier and cant wait to try it out as often as possible. I will be recommending this product and company to everyone. 1002
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