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Pollak 7 Pole to 4 Way Connector Adapter

Pollak 7 Pole to 4 Way Connector Adapter

Item # PK12716
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Pollak Wiring - PK12716
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Quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with this RV connector adapter. Adapter has a non-corrosive nylon shell. Lowest Prices for the best wiring from Pollak. Pollak 7 Pole to 4 Way Connector Adapter part number PK12716 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (654)
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Pollak Wiring - PK12716

  • Wiring Adapters
  • Single-Function Adapter
  • 4 Flat
  • Plug Only
  • 7 Blade
  • Pollak

Quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with this RV connector adapter. Adapter has a non-corrosive nylon shell.


Features:

  • 7-Pole RV connector to 4-way flat adapter
    • Promotes quick and easy conversion of 7-pole, RV-style connector to 4-way flat connector
    • Allows 1 vehicle to tow either campers or boat trailers without electrical brakes
    • Connects Ground, Left Turn, Right Turn and Stop circuits
  • Tethered cap for protection from sand, dirt and moisture
  • Non-corrosive nylon shell and insert


Specs:

  • Application: Vehicles with 7-pole connectors
  • 1-Year limited warranty



This adapter will make the two trailer connectors pictured below work together.


7-Way socket
7-Pole Connector Socket on vehicle
4-Pole plug
4-Way connector on trailer




12-716 Pollak 7-Way to 4-Way Connector Adapter
Replaces 37358






Customer Reviews

Pollak 7 Pole to 4 Way Connector Adapter - PK12716

Average Customer Rating:  4.9 out of 5 stars   (654 Customer Reviews)

Quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with this RV connector adapter. Adapter has a non-corrosive nylon shell.

- PK12716
by:

Everything worked out well. On time and fits perfect. Attach hitch setup and my new Ridgeline. It comes with a 2" inch receiver and I have a full compliment of 1.25. stuff from my previous car. All from etrailer i must admit! so I needed the 2-1.25 reducer, a good lock, and the 7-4 reducer for my goodies! Thanks for the grest service


Comments
great use it a lot
Ralph - 08/23/2021


- PK12716
by:

Once I got the receptacle for my 2021 VW ID.4 I needed the convert. This is retained nicely by the door on the receptacle so that it does not fall off enroute.



- PK12716
by:

It adapted the 7 pole receptacle to the 4 pole that works on my boat trailer! Yeah. "5 stars for doing your job, part. Keep up the good ... thing that you were built to do!" I hope my work performance review is basically the same.



- PK12716
by:

This piece converts a seven pole RV connector to a four pole flat connector, the kind you'll see used by most rental companies like U-Haul. It sits firmly in place and never fails. Build quality is excellent. etrailer has a price that cannot be beat despite shipping.


Comments
This Pollak 7 Pole to 4 Way Connector Adapter is a very high quality piece of electrical equipment that adapts european plugs to US connectors. It works flawlessly. I very highly recommend it.
Peter - 02/07/2021


- PK12716
by:

This item is a must have. Some trailers have 4 pins and others have 7. This adapter solves the problem. Well made item should last a long time.



- PK12716
by:

Although I am commenting on this product, I actually would like to comment on the following products. I purchased a brake system, tow bar, base plates and wire harness from etrailer. All of my orders were filled in a timely manner. When I reached out for technical assistance, the advisors were readily accessible. All of the products were installed by me. All of the products were very easy to install by using the video and instructions.



- PK12716
by:

This connector is just as advertised. Ruggedly built, easy, streight forward connectivity and reasonably price. Highly recommended.



- PK12716
by:

Well designed and delivered timely Perfect fit for my application.



- PK12716
by:

Easy to install. Great product. Very happy with it!



- PK12716
by:

I used this product many times over the last year when pulling my trailer. No problems were noted during rain or shine or snow.



- PK12716
by:

This is my second one of these converter plugs from 7 pin to a flat 4 plug for a second vehicle, works great!



- PK12716
by:

Great product, E trailer your the best.



- PK12716
by:

Worked perfectly with the factory harness on my 2017 Audi Q3.



- PK12716
by:

Works great! My 2020 sierra only has a 7 pin outlet and this converts that 2 a flat 4 … very nice product.



- PK12716
by:

etrailer is the best in the business. Fair pricing, quality goods and great service. I've used them for years and will always buy from them. Great Job etrailer!!



- PK12716
by:

it fits, should work fine, haven't used it yet never hooked my trailer up yet to my vehicle to check it, haven't gotten the trailer out of the shed yet this year as i didn't need it for anything, the plug fits my vehicle and the trailer will plug into it, other than that i haven't tested it to see if everything is ok or i have to do some rewiring, i have had that trailer hooked up to different vehicles and they were all different, my nissan was the worst but i always get it to work, i got the plug in case i needed to use my trailer



- PK12716
by:

Quality adapter



- PK12716
by:

It’s perfect!


Comments
It’s PERFECT!
Martie G - 07/31/2021


- PK12716
by:

Product looks fine. Good value. Quick delivery, though to my neighbor down the street. A not uncommon situation with the carrier used.



- PK12716
by:

This product has been great. I purchased the multi-pin trailer wiring kit, and 4-pin adapter plug. By also purchasing the vehicles specific wiring harness, instalation was quick and easy! I chose to mount this through my bumber, instead of using the included bracket for a more factory finished look, and to avoud ripping off the mount while on rought terrain. This system works great and is much more affordable than factory parts. I highly recommend!



- PK12716
by:

One of my trailer connectors worked with some effort with this adapter. Unfortunately, one did not, so I bought a second unit locally for that trailer. THe connection cavaties are formed just a bit too close together.



- PK12716
by:

Installed and working great.



- PK12716
by:

This serves a simple function. It appears to be well made and it does what it is supposed to.


Comments
Works great for switching between trailers
Ryan - 02/20/2021


- PK12716
by:

The website made it easy to locate the correct part, price was reasonable, ordering was simple, and delivery came as promised. Great experience.



- PK12716
by:

Worked great for the trip with my new trailer to the shop where I had new brakes and wiring installed. Now it is in the go-bag in case I ever need to haul a different trailer.


Comments
I needed this adapter when I rented a [rental] trailer for a one-way trip. Still a fabulous accessory!
George F - 10/13/2018


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Ask the Experts about this Pollak Wiring

  • Recommendation For Using Trailer 4-Way With Vehicle 7-Way
    Since you have a 7-way wired into your 2016 Ford Transit, I recommend using a simple adapter to go from a trailer with a 4-way to your vehicle's 7-way. This will allow you to easily switch between the two by simply inserting or removing the adapter as needed. I recommend the Pollak 7 Pole to 4 Way Connector Adapter # PK12716 for just a plug, or if you want some length, the 18" long Wesbar Adapter - 7-Way RV to 4-Way or 5-Way Flat # 707250. I have added links to video reviews of these...
    view full answer...
  • Converting Vehicle Side 7-Way Trailer Wiring to 4-Way Standard Wiring
    It sounds like you want to do a conversion from your 7-way to a standard 4-way trailer connection that has the 3 functions and ground. There are a couple different options for you that don't require much if you just need the 4-way connector for a trailer. You can use the Pollak 7 Pole to 4 Way Connector Adapter # PK12716 for the easiest connection. Your 2001 Xterra didn't come with a factory 7-way so you may find there is a 4-way plug connection behind your 7-way that you can simply...
    view full answer...
    Image 1 for Image 2 for
  • 7-Way to 4-Way Adapter for 2019 Volkswagen Atlas
    We have the 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # TR20141 which is exactly what you are looking for. This has the needed resistors in the adapter to allow your wiring connections to be made.
    view full answer...
  • 7-Way to 4-Way Adapter Recommendation for 2015 Porsche Macan
    We have just what you need. For the 7-way on your 2015 Porsche Macan we have the Pollak 7 Pole to 4 Way # PK12716 which will fit your 7-way and work well. Every single vehicle side 7-way is made to the exact same dimensions which are the same dimensions the part # PK12716 is designed to fit.
    view full answer...
  • What is the Difference Between Hopkins # HM47365 and Pollak # PK12716 Wiring Adapters
    Both the Hopkins # HM47365 and Pollak # PK12716 wiring adapters allow a tow vehicle with a 7-way blade-style trailer socket to connect to a trailer that is equipped with a 4-pole flat connector. Both plug in to the socket on the vehicle and provide a receptacle for a 4-pole flat trailer connector. The difference between them is that the Pollak adapter is a single piece while the Hopkins adapter uses two separate sections linked by a short length of wiring. In some applications these...
    view full answer...
  • 7-Way to 4-Way Adapter Recommendation for 2011 Porsche Cayenne
    We have the 7-way to 4-way adapter part # PK12716 which will allow your trailer with a 4-way connection to be towed by your Cayenne with a 7-way.
    view full answer...
  • Trailer Connector With 7-Way and 4-Pole That Would Require No Splicing for 2001 Ford F250
    There is a direct-fit plug and play option, but it would involve purchasing two different connectors and using a few parts from each kit. You would first need the 7- and 4-Pole Trailer Connector Socket, part # HM40975. You would also need the Tow Ready Custom Fit Vehicle Wiring Harness, part # 118243. You would attach the HM40975 to the bumper, and use the pigtail from the 118243 to connect the HM40976 to the connector you located under the vehicle. The fuses and relays included with...
    view full answer...
    Image 1 for
  • Taillight Converter Recommendation for a Trailer with Separate Taillights with 4-way Connector
    I have a solution for you, but the 7-way side of your trailer wiring wouldn't easily be adapted to fit your wiring needs. A better solution would be to install the converter # C56196 on the wiring of the trailer you plan on towing with your 2007 Fleetwood Bounder 34F motorhome. This way your trailer can easily be towed by any vehicle with a 4-way. I attached a diagram that shows how this converter installs onto a trailer's taillight circuit.
    view full answer...
    Image 1 for
  • Will Pollak 7-way to 4-way Adapter 12716 Fit 2018 Mercedes GLE Class
    If the 7-way on your new 2018 Mercedes-Benz GLE-Class has Pollak written on it the Pollak 7-way to 4-way adapter part # PK12716 that you referenced would easily fit and work well.
    view full answer...
  • How to Charge an Extra Battery in the Truck Bed on My 2012 Chevrolet Silverado While Driving
    The best option would be to use the NOCO Genius # 329-GENIUS5, and charge the battery when shore power is available, or use the charger in conjunction with an inverter part # WC3720 when the truck is running. If you wanted to use the factory 7-way you could use the 12-Volt Power Inverter Adapter, # HM11147650, to provide DC power to the inverter. If the DC outlet in your truck is ran directly off of the trucks charging system, then you could use it to maintain a battery that is fully...
    view full answer...
  • 7-Way to 4-Way Adapter Recommendation for a 2015 Toyota Tacoma
    The most popular trailer wiring connectors are the 4-way and 7-way like what your trailer has. To go from your 7-way to a 4-way all you need is the correct adapter, part # PK12716. This will plug into the 7-way on your truck and will provide you with a 4-way. Check out the install video I attached for more information on it.
    view full answer...
  • How Do I Convert My 2006 Toyota Sequoias 7-Way Connector to a 4-Way Connector
    All you would need is a Pollak 7 Pole to 4 Pole Connector Adapter, part # PK12716, to connect your 4 pole boat trailer to your 7 pole 2006 Toyota Sequoia. You will simply plug your 4 pole trailer connector into the Pollak 7 Pole to 4 Pole Connector Adapter, part #, PK12716 and then plug that into your Sequoias 7 pole connector and you will be good to go.
    view full answer...
  • 7-Way to 4-Way Adapter Recommendation
    I looked up the part number you mentioned and it is basically just a 7-way to 4-way adapter for Ford 7-ways. For that all you would need is the part # PK12716 which is also made by Pollak.
    view full answer...
  • Adapter for 7-way Trailer Connector on 2020 Chevy Blazer for Utility Trailer with 4-Pole Connector
    If your 2020 Chevy Blazer has the typical blade-style 7-way trailer connector then yes, the # PK12716 Pollak 7-way to 4-pole adapter you'd looked at is exactly what you'd need to provide lighting inputs to your utility trailer with a 4-pole trailer connector.
    view full answer...
  • Adding 4-Pole Trailer Connector to 2009 GMC Sierra Equipped with Factory 7-Way Connector
    There's a few different ways you can do this. For the easiest choice, you can use a simple adapter like # PK12716. Simply plug it into the 7-way then plug the 4-pole connector for the trailer into the adapter. Another option would use the # 118384 4-pole connector. This 4-pole would plug inline between the vehicle wiring harness and the twist-in # PK11916 7-way. This would provide you with an always functioning 4-pole connector, and you wouldn't need to fool with an adapter.
    view full answer...
  • Converting a Trailer with 7-Way to Vehicle with 4-Way
    If the vehicle has a 7-way trailer connector and the trailer has a 4-way trailer connector then you can use the Pollak 7 Pole to 4 Way Connector Adapter part # PK12716 to attach them to one another. However, if the vehicle has a 4-way trailer connector and the trailer has a 7-way trailer connector then you can either use an adapter like the Mighty Cord Trailer Connector Adapter part # A10-7084VP or you can just cut off the 7-way on the trailer and install the Hopkins Endurance Quick-Fix...
    view full answer...
  • Compatibility of 7 Pole to 4 Way Adapter PK12716 with 7-Way Vehicle Connector PK11916
    Yes, the two Pollak parts you referenced are compatible. The Twist-In 7-Pole Vehicle Connector # PK11916 will work fine with the 7 Pole to 4 Way Adapter # PK12716. The adapter will fit the 7-way connector and provide you with a connector in the 4-pole trailer wiring format which includes basic lighting signals for stop, turn and tail lights. The signals for the other circuits on the 7-way (12V power, trailer brakes and reverse lights) will not be transmitted on the adapter's 4-pole output side.
    view full answer...
  • Recommendation for a 7 to 4-Way Trailer Adapter for a 2011 Honda Pilot
    For your 2011 Honda Pilot, we have many 7-Way blade to 4-Flat adapters available. If you strictly want a 7 to 4-Way adapter then I would go with the Adapter 7 Pole to 4 Pole with Tester and Cover, # 47345. This is a pretty basic 7 to 4-Way with the added bonus of a tester that shows if any of the connections are malfunctioning. The included cover will help protect against dirt, grime, and corrosion.
    view full answer...
  • 7-Way to 4-Way Trailer Wiring Adapter for a 2016 Chevy Express Van
    If you are looking for a 7-way to 4-way wiring adapter then the part # PK12716 would be what you need. The 7-ways on vehicles like your 2016 Chevy Express are all made the exact same so this adapter would fit and work well.
    view full answer...
  • Trailer Wiring Adapter to Join Truck 7-Way with Trailer 4-Pole Connector
    It sounds like your Durango has what we call a 7-way blade type trailer socket, which is shown in the linked photo. This common trailer connector uses flat or blade type contacts. We offer adapters to join this type of connector to the 4-pole you have on your trailer and you can see all on the linked page. For example, Pollak # PK12716 plugs in to your Durango's 7-way and provides a connection point for the trailer's 4-pole wiring harness. Others like the coiled-cable adapter # HM47065...
    view full answer...
    Image 1 for
  • Adding a 4-Way Trailer Connector to a 2014 GMC Sierra 1500
    If your 2014 GMC Sierra came with a factory 7-Way you can use # 41155 to plug in a 4-Way in its place. Or you can use an adapter such as # PK12716. If your truck did not come with any trailer connector you would have to contact a GMC/Chevy dealer for the proper parts since there are currently no aftermarket 4-Way harnesses confirmed to fit your truck.
    view full answer...
  • My Trailer Lights Do Not Work Properly, How Do I Find The Problem?
    If you have a factory harness/connector, faulty wiring usually isn't the problem. I would inspect the connector on your truck # C55774 and the adapter # PK12716 connection on both sides. There is likely to be some corrosion or maybe some debris stuck in there bridging the two together. Also, I'm sure you've done this but make sure the adapter is connected to your truck in the right orientation. You can also test the pins on the connector that the harness plugs into. If the problem is there...
    view full answer...
  • Recommended 7 Pole to 4 Way Connector Adapter For Chevrolet Traverse To Tow Trailer With 4-Way
    The adapter I recommend for your Traverse is the Pollak 7 Pole to 4 Way Connector Adapter, part # PK12716. This adapter will allow you to tow a trailer or camper without electrical brakes with your Traverse.
    view full answer...
  • Compatibility of Pollak # PK12716 7-way to 4-Pole Adapter with OEM 7-way on 2011 Honda Ridgeline
    The Pollak # PK12716 would indeed do exactly what your wanting to accomplish. The adapter will plug into the existing 7-way, and would provide a 4-pole connection that would allow you to tow your boat trailer. I've linked you to a product demonstration video, which I hope you'll find helpful.
    view full answer...
    Image 1 for
  • Troubleshooting Trailer Lights Blinking Out of Sequence on Trailer Towed by 2007 Chevy Trailblazer
    It could be a bad ground or a short. You will have to check the grounds on each of the trailer lights and on the trailer connector. The lights usually ground through the mounting studs. If there is any dirt, corrosion, or rust it could cause a bad connection. You will also want to check where the light bracket mounts to the trailer and the ground at the trailer coupler. I have included videos below on testing for a ground and testing for shorts.
    view full answer...
  • LED Trailer Lights Not Working when Towed by 2007 Mercedes ML350
    Since one of your trailers has LED lights and you are towing with a 2007 Mercedes ML350 I recommend using adapter # TR20141. It will work with trailers that have regular incandescent lights too. This adapter has built in load resistors that simulate more power draw from the trailer lights so that trailers with LED lights will not confuse the tow package wiring system on your Mercedes. In some cases, the load resistors in the adapter are not enough. In those cases additional load...
    view full answer...
  • Can a 13-Way European Trailer Connector on a Volkswagen Amarok be Converted to US 4-Way Flat
    The European 13-Way trailer connector does basically the same thing as the US 7-Way does except that the European version has a separate circuit and pin for every function. here in the states the turn signals and brake lights are combined on each side and there is just one running light circuit. In order to adapt the 13-Way you would need to determine which wires control brake lights, turn signals, and running lights on the 13-Way. Then you would take the left turn signal wire and attach...
    view full answer...
  • Would the 7-Way to 4-Way adapter part # PK12716 Fit a 2015 Mercedes
    As long as your 2015 Mercedes GL has a 7-way installed on it the 7-Way to 4-Way adapter part # PK12716 would be a great fit. Basically it will just plug right into the 7-way on your vehicle and will provide you with a 4-way trailer connector.
    view full answer...
  • Recommended 7 Pole to 4 Way Adapter for 2012 Porsche Cayenne
    The Pollak 7 Pole to 4 Way Connector Adapter # PK12716 referenced in your question will allow you to quickly convert the 7-pole on your vehicle to a 4-way flat to connect with your trailer. This will plug right into the existing 7-Way and the adapter does feature a tethered cap that will cover the 4-Way and protect it from the elements. You will not need any additional parts to use this adapter on your Porsche Cayenne. I have attached a short video demonstration on this product that...
    view full answer...

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