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


Pollak 7 Pole to 4 Pole Connector Adapter

Pollak Wiring

ratingratingratingratingrating (144 reviews)


Code:   PK12716

Price:$8.99


Shipping Special

Shipping Weight: 0.5 pounds

Quantity: 






Pollak Wiring - PK12716

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

Features:

  • 7-Pole to 4-pole RV connector adapter
    • Promotes quick and easy conversion of 7-pole, RV-style connector to 4-pole 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





Video of Pollak 7 Pole to 4 Pole Connector Adapter


Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Video Review Pollak 7 to 4 way adapter
Pollak 7 Pole to 4 Pole Connector Adapter Review

Video Transcript for Pollak 7 Pole to 4 Pole Connector Adapter Review

Today we are going to show you the Pollak 7-pole to 4-pole connector adapter, part number PK12716. Pollak offers this adapter that makes converting your 7-pole on your vehicle to a 4-pole on your trailer quick and easy. We are going to open the door on our 7-way and our adapter. Push it all the way in and make sure it is seated firmly. Then pull the cap off the end of the 4-way. Now we are ready to hook up the 4-way connector on our trailer. :28

Now we are ready to test our tail light functions. We are going to check for running lights, brake lights, and blinkers. That does it for the Pollak 7-pole to 4-pole connector adapter, part number PK12716.


Customer Reviews

Pollak 7 Pole to 4 Pole Connector Adapter - PK12716

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (144 Customer Reviews)




- PK12716

ratingratingratingratingrating by: Walt R07/23/2013

Is this review helpful?


The adapter works GREAT and the shipping was very fast! Thank you!!!! 91061



- PK12716

ratingratingratingratingrating by: Jon M12/27/2010

Is this review helpful?


7 wire to 4 wire adapter I tried using a cheaper, trailer rental outlet adapter but the fit was terrible. This is solid and worth every penny if you need an adapter. Website made it easy to find and service was solid as well. I will be back for more. I also like the wiring tips and videos. Thanks a lot!4674



- PK12716

ratingratingratingratingrating by: Stan G.12/13/2013

Is this review helpful?


Ordering was simple and delivery was on time. Haven't use the product yet but it'seems to be what I needed to convert my Honda Pilot's 7 pole plug to use a 4 pole plug from a trailer. Will follow-up when I use it.110097



- PK12716

ratingratingratingratingrating by: Randy D.10/08/2013

Is this review helpful?


Shipped fast and arrived on schedule. I plugged the unit into the factory seven pole outlet on my truck and connected the four pole tailer connector and everything worked the first time. Hard to argue with success. I would recommend this product and etrailer as a company.103066



- PK12716

ratingratingratingratingrating by: David S.07/09/2013

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I needed the Pollak 7 Pole to 4 Pole connector adapter to connect my Thule 684 Terrapin cargo box to my 2012 MB GL 450. I hooked it up last night and the adapter works perfectly. All lighting functions on the Thule are working as designed.88500



- PK12716

ratingratingratingratingrating by: James H.07/04/2013

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I required this adapter to convert the factory 7 pole harness on my VW Tiguan to match the 4 pole connector on my trailer. I was especially drawn to this adapter given that the vehicle harness has the Pollak name brand printed on it. The adapter "feels" like it is made well and the fit is confidence inspiring. I was quite pleased when I finished connecting my trailer through this adapter and everything worked perfectly on the first use of it. I have now towed three times (reconnecting and disconnecting after each use) and have absolutely no complaints.87747



- PK12716

ratingratingratingratingrating by: Dj06/04/2013

Is this review helpful?


This adapter is exactly what I needed. I explain my problem to sales rep Alicia G and she knows what I needed. I plug it in to my 7 pin harness and than my 4 pin boat trailer. And guess what? It works!!! 83218



- PK12716

ratingratingratingratingrating by: Michael K05/01/2013

Is this review helpful?


I put the kit in this morning. It probably took 15-20 minutes plus the time it took to drill the hole for the receptacle itself. I have two comments. 1. I had put the module in the place directed and then realized that I had two fuse plugs in the box, so I took it back out and put those in. 2. It is quite difficult to get the "cap" off the wiring under the rear bumper. I probably struggled with that more than any other single thing. After completing the job, I plugged the 7 to 4 wire converter in and hooked it to one of my trailers and everything worked the way it was supposed to. Honda is really ripping people off with what they are doing. Please see my previous email to you. Thanks for your great product, You can bet that I'll be sending business your way,78548



- PK12716

ratingratingratingratingrating by: Jimmie03/04/2013

Is this review helpful?


Every item that was purchased was installed within 15 minutes with ease no PROBLEMS at all LOOKS ausume on the truck and adds value also I will buy from etrailer again price was right and super fast shipping. Thanks again etrailer68730



- PK12716

ratingratingratingratingrating by: Dave06/09/2012

Is this review helpful?


I have not hooked the trailer to it yet but my test light shows all the connections are good. Much better than the previous plug I had. Just make sure you push it far enough for the retention tab on tje cover of your main plug to keep it in place43435



- PK12716

ratingratingratingratingrating by: Jim S.04/27/2012

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Purchased this for my 2010 Toyota Tacoma truck with factory towing package. Needed adapter from the RV style plug to the standard trailer 4 prong plug. eTrailer experience excellent. Plug seems to fit loose into the socket on truck but really isn't. The socket cover comes down and there is a tab on the adapter that fits into a space on the cover, preventing the adapter from coming out of the socket. Nice!38560



- PK12716

ratingratingratingratingrating by: Barry S.01/04/2011

Is this review helpful?


7-WAY to 4-WAY Trailer Plug Great! Was received in sealed packaging; high quality, perfect fit... will be used to connect trailer lights for my bass boat.4997



- PK12716

ratingratingratingratingrating by: Rick McWhorter06/29/2011

Is this review helpful?


just replaced my old pollak plug with a new one, it works great, & shipping was super fast. Will save this site in my favorites18188



- PK12716

ratingratingratingratingrating by: Jody08/04/2011

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Worked great, good price 21105



- PK12716

ratingratingratingratingrating by: Dan B06/21/2011

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super fast delivery 17619



- PK12716

ratingratingratingratingrating by: Jim Daugherty06/20/2011

Is this review helpful?


I needed an adaptor for my truck to tow my jetski. I found these at etrailer.com. Nice price. Easy transaction. Superfast Shipping also at a reasonable price. I would buy from you again. Thank you. Jim17355



- PK12716

ratingratingratingratingrating by: Herman Karl06/20/2011

Is this review helpful?


Shipment was very fast. Product works well.17327



- PK12716

ratingratingratingratingrating by: Glynn R.06/12/2011

Is this review helpful?


Seemed to take quite a while to receive this item, other than that all aspects were outstanding.16775



- PK12716

ratingratingratingratingrating by: Brian K.05/27/2011

Is this review helpful?


Great product and quick delivery. 15521



- PK12716

ratingratingratingratingrating by: Brad C.05/24/2011

Is this review helpful?


Just the adapter I needed. Thanks, eTra iler!15250



- PK12716

ratingratingratingratingrating by: Bill C05/20/2011

Is this review helpful?


Good product for a great price. The service is phenominal as well. Can't go wrong with E-trailer for your trailering needs,14904



- PK12716

ratingratingratingratingrating by: Wolfgang Kistler05/19/2011

Is this review helpful?


This is the second time I ordered something from etrailer and I as allways they do a great job.14784



- PK12716

ratingratingratingratingrating by: Dave05/17/2011

Is this review helpful?


Great price! 14503



- PK12716

ratingratingratingratingrating by: brian05/16/2011

Is this review helpful?


Great product, great price, fast shippi ng14415



- PK12716

ratingratingratingratingrating by: Dan R05/16/2011

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Another great product purchaced from this company very pleased 14233



- PK12716

ratingratingratingratingrating by: Ron B05/16/2011

Is this review helpful?


Works great. 14140



- PK12716

ratingratingratingratingrating by: Rodney Gisclair05/12/2011

Is this review helpful?


Great Product. easy to install. instructions and "how to" video were excellent. ++++++ 13660



- PK12716

ratingratingratingratingrating by: Eric M.05/12/2011

Is this review helpful?


Perfect Product. Works great!!! 13658



- PK12716

ratingratingratingratingrating by: Bill Buehrle05/11/2011

Is this review helpful?


I was very pleased with the service and product. I have not used it yet but it appears that it will do what I need it to do13585



- PK12716

ratingratingratingratingrating by: Tom W05/11/2011

Is this review helpful?


Work great.fast delivery 13378



- PK12716

ratingratingratingratingrating by: Joe P.05/10/2011

Is this review helpful?


I recently purchased a new GMC truck and it had a factory installed towing system. It had a Pollak 7 pole socket installed at the factory. I needed an adapter so I ordered this one. It is the exact perfect adapter I needed to do the job.13141



- PK12716

ratingratingratingratingrating by: Potatopirate05/07/2011

Is this review helpful?


Works great. 13057



- PK12716

ratingratingratingratingrating by: Paul B.05/04/2011

Is this review helpful?


The Connector adapter worked perfectly. It even has a cover for the exposed connectors so that they don't get dirty and corroded when not in use. 12863



- PK12716

ratingratingratingratingrating by: Jim B05/03/2011

Is this review helpful?


Well made piece, fits great. 12778



- PK12716

ratingratingratingratingrating by: Randy S05/03/2011

Is this review helpful?


Plugs right into the 7 pin plug and has place on back to adapt to the 4 wire flat. Simple and straightforward without the corrosion prone adapters I've worked with in the past.12752



- PK12716

ratingratingratingratingrating by: Bill K.05/03/2011

Is this review helpful?


Good price quick shipping. 2nd purchase both went without a hitch (no pun intended)12728



- PK12716

ratingratingratingratingrating by: Scott S03/19/2011

Is this review helpful?


The items works great, I have 3 vehicles and 2 trailers I tow and no problems with any of them.9861



- PK12716

ratingratingratingratingrating by: Gary S.03/16/2011

Is this review helpful?


Very good quality product, quick service and delivery.9493



- PK12716

ratingratingratingratingrating by: Vic M.03/10/2011

Is this review helpful?


Perfect - fit just like you said. I am not so mechanically savey but your descriptions of "if you have this, you can use this" made it so simple, and shipping was super fast. Dealt with before and will deal with again!9007



- PK12716

ratingratingratingratingrating by: Jim F02/21/2011

Is this review helpful?


Plugs Quick and easy 7593



- PK12716

ratingratingratingratingrating by: Mike W.02/03/2011

Is this review helpful?


This product was as I expected. 6619



- PK12716

ratingratingratingratingrating by: Rcl01/15/2011

Is this review helpful?


:) Does what it says. Fits good. 5526



- PK12716

ratingratingratingratingrating by: Jonathan01/26/2012

Is this review helpful?


Fast Shipping, everything work as advertising. Excellent service.30395



- PK12716

ratingratingratingratingrating by: Larry H.01/15/2012

Is this review helpful?


It makes changing to different trailers easy.29749



- PK12716

ratingratingratingratingrating by: Kim J12/27/2011

Is this review helpful?


Plain and simple, it's a solid item. 28775



- PK12716

ratingratingratingratingrating by: cayeagley11/20/2011

Is this review helpful?


plug it in and go. 27187



- PK12716

ratingratingratingratingrating by: mike k.11/04/2011

Is this review helpful?


works good 26541



- PK12716

ratingratingratingratingrating by: Jack R.08/17/2011

Is this review helpful?


Makes it easy to hook up the trailer(s) to my vehicle(s).22050



- PK12716

ratingratingratingratingrating by: x08/12/2011

Is this review helpful?


excellent service, great price! 21767



- PK12716

ratingratingratingratingrating by: Johnnie07/28/2011

Is this review helpful?


Very easy to convert to other trailer. Works great. 20500



- PK12716

ratingratingratingratingrating by: BILLYGOAT07/07/2011

Is this review helpful?


I HAD A PROBLEM FINDING A WEBSITE WITH INFORMATION TO HELP ME ORDER THE CORRECT ADAPTER. YOUR'S WAS THE FIRST. THE SITE WAS EASY TO USE AND I RECEIVED THE PRODUCT IN TWO OR THREE DAYS NOT SIX OR SEVEN. THANK YOU. 18769



- PK12716

ratingratingratingratingrating by: P D B07/06/2011

Is this review helpful?


Easy to install. Prompt attention to order, fast shipping.18640



- PK12716

ratingratingratingratingrating by: Brian h06/30/2011

Is this review helpful?


Faster than I thought would arrive excellent service and selection18269



- PK12716

ratingratingratingratingrating by: glenn04/17/2014

Is this review helpful?


it works 125783



- PK12716

ratingratingratingratingrating by: Matt S04/02/2014

Is this review helpful?


Worked as intended. Excellent customer service.123468



- PK12716

ratingratingratingratingrating by: M03/28/2014

Is this review helpful?


Product works very well. Etrailer were great from the time I submitted my order until it's delivery. Great customer service122739



- PK12716

ratingratingratingratingrating by: Gary C.03/17/2014

Is this review helpful?


Product is exactly what I needed. Thank you.120921



- PK12716

ratingratingratingratingrating by: Wayne B.03/12/2014

Is this review helpful?


Haven't tried this out yet but I sure like the design and convenience.120328



- PK12716

ratingratingratingratingrating by: robieblue03/11/2014

Is this review helpful?


this trailer plug fit perfectly 120286



- PK12716

ratingratingratingratingrating by: jeremy r03/11/2014

Is this review helpful?


good work just fine thanks 120191



- PK12716

ratingratingratingratingrating by: jerry l.03/10/2014

Is this review helpful?


worked fine 120073



- PK12716

ratingratingratingratingrating by: Juan Mejia02/27/2014

Is this review helpful?


Great Product. 117883



- PK12716

ratingratingratingratingrating by: Gary P.02/24/2014

Is this review helpful?


This thing does exactly what it's supposed to do; simply and easily, and at a great price. Easy connection and high quality make it a product that should work well for years.117513



- PK12716

ratingratingratingratingrating by: William J.01/07/2014

Is this review helpful?


As soon as the parts were delivered on time I open the box and had them in place on my truck in like, 5 minutes. it was exacly the port I needed to order THANKS!112208



- PK12716

ratingratingratingratingrating by: Robert E.01/01/2014

Is this review helpful?


Working just as I had hoped!! Thanks for the product and great service.111674



- PK12716

ratingratingratingratingrating by: ron w12/26/2013

Is this review helpful?


Your salesman helped me to connect a lighted hitch cover by using item PK12716111189



- PK12716

ratingratingratingratingrating by: Ray12/03/2013

Is this review helpful?


Just as advertised. Thanks 109003



- PK12716

ratingratingratingratingrating by: Lance11/26/2013

Is this review helpful?


Works as advertised, solid built. No pr oblems.108603



- PK12716

ratingratingratingratingrating by: R. ZACK11/24/2013

Is this review helpful?


EXCELLENT TOO! 108367



- PK12716

ratingratingratingratingrating by: peter11/18/2013

Is this review helpful?


Perfect fit. 107699



- PK12716

ratingratingratingratingrating by: Joe L11/11/2013

Is this review helpful?


Everything came on time and in good condition and all the parts were correct. Thanks you.106971



- PK12716

ratingratingratingratingrating by: Paul S11/05/2013

Is this review helpful?


Good product. Very well built. Easily connects and disconnects. Great service from etrailer.com106406



- PK12716

ratingratingratingratingrating by: Mel10/22/2013

Is this review helpful?


Good fit 104797



- PK12716

ratingratingratingratingrating by: Chase Q10/22/2013

Is this review helpful?


Great product super fast shipping 104707



- PK12716

ratingratingratingratingrating by: Javier D.10/17/2013

Is this review helpful?


works great, nice and durable and the price was awesome shipping was supper fast 100% recommend 104169



- PK12716

ratingratingratingratingrating by: Rob C.10/02/2013

Is this review helpful?


Works great. Great Price. Needed to replace the broken terminal on factory installed Dodge towing kit and this was the easiest and economical way. 102261



- PK12716

ratingratingratingratingrating by: Jae F.10/01/2013

Is this review helpful?


Great product. Fits truck perfectl, installs easily and works fantastic. Fast shipping. Lowest prices found. Highly recommended.102096



- PK12716

ratingratingratingratingrating by: Rick O09/18/2013

Is this review helpful?


Just what I wanted works great 100507



- PK12716

ratingratingratingratingrating by: Lucky Marine Services09/18/2013

Is this review helpful?


As expected. Works fine. 100432



- PK12716

ratingratingratingratingrating by: harry r09/15/2013

Is this review helpful?


great product 100032



- PK12716

ratingratingratingratingrating by: Tony R09/09/2013

Is this review helpful?


Bought this with a wiring harness. Works great!98958



- PK12716

ratingratingratingratingrating by: Alain A09/05/2013

Is this review helpful?


Easy to install. Perfect fit. 98434



- PK12716

ratingratingratingratingrating by: David C08/26/2013

Is this review helpful?


Great product.... able to plug in your 4wire plug from trailer to your 7wire plug on your vehicle.97107



- PK12716

ratingratingratingratingrating by: Tad W08/20/2013

Is this review helpful?


Excellent quality adapter. 96063



- PK12716

ratingratingratingratingrating by: chtrcapt08/13/2013

Is this review helpful?


Very good service. Product was just what I neeed.94802



- PK12716

ratingratingratingratingrating by: Bernie c08/05/2013

Is this review helpful?


Nice 93397



- PK12716

ratingratingratingratingrating by: Larry in Vermont08/03/2013

Is this review helpful?


Works as expected, and at 1/2 the cost at the Buick dealer. Thanks.93070



- PK12716

ratingratingratingratingrating by: Pete07/31/2013

Is this review helpful?


Great product and very handy. Would fully recommend buying this.92626



- PK12716

ratingratingratingratingrating by: Brian B.07/26/2013

Is this review helpful?


Works great, perfect fit, nice weather cap for the 4 flat. Fast shipping.91717



- PK12716

ratingratingratingratingrating by: Mark M07/19/2013

Is this review helpful?


Works like a charm. Quick and simple to install and easy to use.90406



- PK12716

ratingratingratingratingrating by: Min P.07/14/2013

Is this review helpful?


Perfect! Does what you need it to do. 89520



- PK12716

ratingratingratingratingrating by: John P.07/05/2013

Is this review helpful?


Item is exactly what I needed and of good quality. 87883



- PK12716

ratingratingratingratingrating by: Bill T07/04/2013

Is this review helpful?


Did what it is supposed to do. Easy install , looks great.87558



- PK12716

ratingratingratingratingrating by: fairlr07/01/2013

Is this review helpful?


Product as described and works 86881



- PK12716

ratingratingratingratingrating by: ADLL06/25/2013

Is this review helpful?


good price and quality 85882



- PK12716

ratingratingratingratingrating by: Charlie06/14/2013

Is this review helpful?


Works great. Good.quality. 84707



- PK12716

ratingratingratingratingrating by: B Kirby05/17/2013

Is this review helpful?


just what i needed,fast shipping 80684



- PK12716

ratingratingratingratingrating by: Don C.05/14/2013

Is this review helpful?


Stays in place well and a no-brainer hook up!80130



- PK12716

ratingratingratingratingrating by: Mike M05/04/2013

Is this review helpful?


Rubber cap is a nice feature not found on other adapters78974



- PK12716

ratingratingratingratingrating by: Angel Z.04/30/2013

Is this review helpful?


Good connector and built solid 78473



- PK12716

ratingratingratingratingrating by: Al F.04/28/2013

Is this review helpful?


Love this makes it very easy , got rid of my homemade pigtail !!!78210



- PK12716

ratingratingratingratingrating by: Marty04/13/2013

Is this review helpful?


Gothere in a hurry , works great. 75870



- PK12716

ratingratingratingratingrating by: John04/05/2013

Is this review helpful?


Fast shipping, very easy to hook up. 74491



- PK12716

ratingratingratingratingrating by: Robert03/25/2013

Is this review helpful?


Product arrived before the scheduled delivery date and it worked right away. I would definately recommend the product!!! Two thumbs up.72448



- PK12716

ratingratingratingratingrating by: David03/18/2013

Is this review helpful?


Adapter plugs in my 2011 Canyon then 4 wire plug from my trailer 71488



- PK12716

ratingratingratingratingrating by: Michael Brad03/12/2013

Is this review helpful?


Received my trailer converter in the most prompt manner. This is the second one I ordered since I screwed up the first time. Works like a champ and the price is extremely affordable. Thanks.70222



- PK12716

ratingratingratingratingrating by: Keith03/05/2013

Is this review helpful?


Fits well as necessary. The twist in connector fit perfectly in the factory twist in location.69019



- PK12716

ratingratingratingratingrating by: Anthony F03/01/2013

Is this review helpful?


Fits perfectly, and it works. 68298



- PK12716

ratingratingratingratingrating by: Robert02/25/2013

Is this review helpful?


Precisely what I needed. I also appreciate the faster than expected service. Many thanks! BG67714



- PK12716

ratingratingratingratingrating by: James02/11/2013

Is this review helpful?


Excellent product. Works perfectly. Very happy with purchase.65664



- PK12716

ratingratingratingratingrating by: Ognjen02/11/2013

Is this review helpful?


great product, easy to install 65628



- PK12716

ratingratingratingratingrating by: Gary02/05/2013

Is this review helpful?


as advertised, excellent service 65091



- PK12716

ratingratingratingratingrating by: Greg01/21/2013

Is this review helpful?


Great easy, arrived in good time..(shipping). application was easy and shows a clean look, I'm happy at this time, haven't tried it yet but will..Keep up the good work ..and thanks.. 63710



- PK12716

ratingratingratingratingrating by: Steve W.11/27/2012

Is this review helpful?


Great price,Great quality. Just plug it in.........60067



- PK12716

ratingratingratingratingrating by: samm.11/13/2012

Is this review helpful?


Product works great and all anyone has to do is plug it in.59398



- PK12716

ratingratingratingratingrating by: Ron11/13/2012

Is this review helpful?


Fast delivery , would buy again. 59335



- PK12716

ratingratingratingratingrating by: rosie11/09/2012

Is this review helpful?


worked as advertised 59146



- PK12716

ratingratingratingratingrating by: CT11/09/2012

Is this review helpful?


work great 59099



- PK12716

ratingratingratingratingrating by: rc10/05/2012

Is this review helpful?


excellent product, and excellent customer service.56316



- PK12716

ratingratingratingratingrating by: TB09/25/2012

Is this review helpful?


Great product, works just like it is supposed to.55705



- PK12716

ratingratingratingratingrating by: Robert H.09/13/2012

Is this review helpful?


workie workie 54627



- PK12716

ratingratingratingratingrating by: Robert DeGoey08/27/2012

Is this review helpful?


Needed to convert stock 7 pin to 4 pin flat. Works well and is good quality. 53205



- PK12716

ratingratingratingratingrating by: EJR08/17/2012

Is this review helpful?


Great and worked as described. 52034



- PK12716

ratingratingratingratingrating by: Chuck08/17/2012

Is this review helpful?


Good to have just in case u got to move a small trailer and only have a 7 way plug just plug and go!52014



- PK12716

ratingratingratingratingrating by: Eric Horn08/14/2012

Is this review helpful?


My new silverado has no 4 way flat connection on the real and this is a cheap way to go from my 7 way to a 4 way to pull my boat51694



- PK12716

ratingratingratingratingrating by: Sam M.08/08/2012

Is this review helpful?


Works great. 51056



- PK12716

ratingratingratingratingrating by: Steve08/07/2012

Is this review helpful?


It works. Looks clean and well made. 50903



- PK12716

ratingratingratingratingrating by: Ron08/03/2012

Is this review helpful?


Works great bought it for my 2012Chevy Silverado50357



- PK12716

ratingratingratingratingrating by: A L07/23/2012

Is this review helpful?


sturdy construction, does exactly what it claims too, nice piece to have48948



- PK12716

ratingratingratingratingrating by: Jeriatric07/11/2012

Is this review helpful?


Exactly what I needed to my older boat trailers to my Jeep's O.E.M. trailer hitch.47573



- PK12716

ratingratingratingratingrating by: Michael J07/03/2012

Is this review helpful?


Great high quality product and great pr ice.46604



- PK12716

ratingratingratingratingrating by: Roy B.06/27/2012

Is this review helpful?


Received items as advertised, good communication. Will do buisiness again.45848



- PK12716

ratingratingratingratingrating by: Robert Sch06/18/2012

Is this review helpful?


If you can't figure this one out, you should not be driving.44693



- PK12716

ratingratingratingratingrating by: John A06/07/2012

Is this review helpful?


Great service. You are missing incredible customer service if you do not purchase from these people. This comes in a time when there is not customer servicer anymore. These people actually care. Wow, Thanks etrailer. 43215



- PK12716

ratingratingratingratingrating by: Jeffo05/17/2012

Is this review helpful?


Purchased two new trucks that came prewired for RV plugs and the ole trailer had a 4 pin flat plug. This worked like a charm and saved me alot of time having to rewire the trailer with an RV plug. Well worth the money.40831



- PK12716

ratingratingratingratingrating by: Joshua05/14/2012

Is this review helpful?


This adapter works as expected. 40488



- PK12716

ratingratingratingratingrating by: Scott D.05/06/2012

Is this review helpful?


Great price and works well. 39586



- PK12716

ratingratingratingratingrating by: Vickie S04/30/2012

Is this review helpful?


It looks like what it should ,it will be awhile before it is actually used.38842



- PK12716

ratingratingratingratingrating by: beemann04/14/2012

Is this review helpful?


This little deal saves me alot of rewiring glad someone had the sense to build it37169



- PK12716

ratingratingratingratingrating by: David S.04/10/2012

Is this review helpful?


This was a great investment. 36761



- PK12716

ratingratingratingratingrating by: SK03/10/2012

Is this review helpful?


Quick ship-great product. 33508



- PK12716

ratingratingratingratingrating by: Dave03/01/2012

Is this review helpful?


Once again eTrailer has come through with flying colors....fast delivery and exceptional products! If you are doing business elsewhere, you are doing yourself an injustice!32861



- PK12716

ratingratingratingratingrating by: Jimmy c02/28/2012

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Works great. Adapters are way easier than running new wires, and less messy. 32745



- PK12716

ratingratingratingratingrating by: Marc C.05/16/2011

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Fast delivery, great transaction. Than ks14321



Ask the Experts about this Pollak Wiring
Expert Answers about Pollak 7 Pole to 4 Pole Connector Adapter - PK12716                                           Do you have a question about this Wiring?


  • Trailer Harness 7-Way to 4-Way Wiring Adapter for a 2002 Ford Explorer
  • I am not familiar with a 3 pin trailer connector. I am assuming you have a 4 pole (4 pin) that has 3 male and one female pins. If this is the case, you will need a 7 way to 4 way adapter, like part # PK12716.
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  • Will Adapter PK12716 Work With a 2008 Chevy Pickup Towing a Boat Trailer
  • Yes, adapter PK12716 will fit your 2008 Chevrolet Pickup factory plug as long as it is a 7-way plug. It should look similar to part # PK11916. It would have no problem connecting to the 4-way flat plug on your boat trailer. However, I do recommend double checking the style of your trailer plug, as 5-way plugs are very common on boat trailers. If you have a 5-way plug, it would look similar to part # 20016. If you do happen to need a 7-way to 5-way adapter, you could use part # 37385,
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  • 7-Way Balde to 4 Flat Adapter Compatible with a 2008 Mercedes M-Class GL 450
  • If your 2008 Mercedes 450 M GL model has a 7-Way connector, and your trailer uses a 4-Way flat, then the Pollak 7 Pole to 4 Pole Connector Adapter, # PK12716, will work. The unit plugs into the 7-Way socket on your vehicle and the 4-pole on the trailer plugs into the back of the adapter. We actually have many of this set up. I have included a link to them below. If you are not receiving any power or signals from your vehicle side connector, that could be the reason nothing has worked. You wil
    view full answer...

  • 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.
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  • 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.
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  • Troubleshooting Left Turn Signal Problem When Using 7 to 4-Way Wiring Adapter PK12716 on a 2006 GMC
  • To determine where the problem is occurring, I would use a circuit tester to check for function at a couple different points. You will either need to leave on the turn signal in the cab of your truck, or have a helper operate it for you. We offer circuit tester # 3808 if needed. First, without the adapter or trailer connected, you can make sure that the left turn signal is reading correct at the 7-Way plug on your 2006 Sierra. The left turn signal is normally located at the second blade from
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  • Adapter Needed to Convert 4-Pole Trailer Connector to 7-Way for 1997 Chevy Tahoe
  • We offer an adapter that will convert your existing 4-pole to a 7-way. Part # 37185 also features a 4-pole for smaller trailers. If your trailer has brakes and you want them to actuate, you will also need a brake controller installed on your Tahoe. I would recommend a proportional controller, like the Tekonsha Prodigy 2 part # 90885. A proportional controller is preferable to the older time-delayed controllers, because the proportional controller can sense how quickly and with how much int
    view full answer...

  • Wiring Converter Needed to Connect a 3-Wire Motor Home to a 2-Wire Boat Trailer
  • Yes, since your motor home has separate brake and turn signals, and your boat trailer has combined brake and turn signals, you will need to use the Draw-Tite Taillight Converter, part # 119175KI.T To begin, you will need to access the wiring of your tail lights from inside the motor home. I would recommend having a friend help you operate the lights and turn signals as you use the included circuit tester to test the wires for function. You will connect the wires on the input side of the c
    view full answer...

  • Will Pollak 7 to 4 Pole Adapter Work On 2009 GMC Sierra With Factory 7-Way
  • Yes, the item you selected, Pollak 7 Pole to 4 Pole Adapter, part # PK12716, will work great to convert the 7-way on your 2009 GMC Sierra to a 4-way. This adapter will allow you to do just as you described; plug part # PK12716 into your truck, plug 4-way trailer connector into adapter, and have functional lights on trailer.
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  • Using 7-Way Trailer Connector 12-volt Accessory Circuit to Power Boat Winch
  • An electric winch used to pull a boat up on a trailer is designed to be wired directly to a 12-volt battery. The wire that feeds your 7-way trailer connector is too small in gauge to be able to handle the amperage draw of a winch. Attempting to use the 7-way to power the winch will almost certainly lead to blown fuses. Typically, a winch would be connected to an auxiliary battery located on the trailer. The auxiliary battery can be maintained with the 12-volt circuit from the 7-way, but it wi
    view full answer...

  • Wiring a 7-Way for 12 Volt Power to Maintain a Trailer Battery Towed by a 2011 Chevy Colorado
  • The wiring on a vehicle and in a trailer connector is not sufficient to up-charge a trailer battery unless it is a smaller break away battery. The wiring can maintain the current charge level on the battery but a battery charger is recommended to up-charge the battery. Since your truck does not already have a 12 volt wire at the back, you will need to hardwire one from the adapter you have to the positive terminal on the battery via a 40 amp circuit breaker # PK54540 and using about 20 feet
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  • Both Trailer Turn Singles Blink at the Same Time on a Trailer Towed by a 2008 Chevy Silverado
  • Typically when both blinkers flash at the same time it is either a ground problem or a corroded or miswired connector or adapter. First examine the trailer side connector and the vehicle side connector and clean out any dirt or corrosion. Also check the adapter. If that does not fix the issue make sure that the vehicle and main trailer connector grounds are attached to clean and corrosion free bare metal surfaces. Do the same for the trailer lights. A bad or weak ground can cause all sorts o
    view full answer...

  • Left Trailer Brake Light Does Not Work on New Trailer Towed by 2001 Nissan Pathfinder
  • The first thing you are going to want to do is test the 7-Way on the Pathfinder using a circuit tester like # 3808 if needed. The pins in the 3:00 and 9:00 positions are the turn signal/brake light pins. Have someone engage the left and right turn signals and then the brakes, 1 at a time, while you test with a circuit tester. If all of the functions are correct on the 7-Way then that indicates a problem on the trailer. If the signals are not correct on the 7-Way then you may have a dirty or c
    view full answer...

  • Dealer Installed 7-Way Trailer Connector Does Not Work on 2012 Volkswagen Tiguan
  • It actually does not make sense because a 7-Way trailer connector also has combined brake light and turn signals so unless the adapter you bought is something out of the ordinary it is not the issue. The issue on many newer German vehicles is when you are towing a trailer with LED lights, the power draw is not sufficient for the OEM trailer wiring. What is needed is a special adapter, # TR20141, that adds extra resistance so you do not get the bulb out warning and the lighting on the trailer wil
    view full answer...

  • Adapter Needed to Convert a 7-Pole Trailer Connector to a 4-Pole Trailer Connector
  • Yes, the Pollack 7-Pole to 4-Pole Adapter, # PK12716, is the adapter you will need to connect a flat 4-pin trailer connector. This adapter will provide all of the light functions (running lights, turn signals and brake lights) for a trailer with a 4-pole connector. I have attached a short review video of this adapter for you to check out.
    view full answer...


Info for this part was:


Photos by:
Theodore B

Expert Research:
Michael L

Expert Research:
Sarah L

Video Edited:
Andrew K

Written by:
Tyler C

Expert Research:
Patrick B

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Reno H

Expert Research:
John H

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